Repository: united-manufacturing-hub/united-manufacturing-hub
Pull request #2051: [ENG-3007] [ENG-3014] Better Errors for DFC deploy and edit
Author: login: FreiPaul
Created: 2025-05-15T16:28:47Z | Merged: 2025-05-21T13:13:14Z

This PR introduces early aborts on benthos config errors and provides the frontend with better error info (i.e. error code) so that it can determine weather to offer the user the retry-option or not. Therefore, we include the SendActionReplyV2 which already existed in UMH Classic. In the frontend, the fetcher checks the action reply error code for the prefix `ERR_RETRY_`  . If it finds the prefix in the error code or no error code at all, the retry option is displayed. 


Diff:
diff --git a/umh-core/pkg/communicator/actions/actions.go b/umh-core/pkg/communicator/actions/actions.go
index 291fcbd95b..c5e9f80b5e 100644
--- a/umh-core/pkg/communicator/actions/actions.go
+++ b/umh-core/pkg/communicator/actions/actions.go
@@ -149,6 +149,9 @@ func HandleActionMessage(instanceUUID uuid.UUID, payload models.ActionMessagePay
 	// Parse the action payload
 	err := action.Parse(payload.ActionPayload)
 	if err != nil {
+		// If parsing fails, send a structured error reply using SendActionReplyV2 with ErrRetryParseFailed
+		// this will allow the UI to retry the action
+		SendActionReplyV2(instanceUUID, sender, payload.ActionUUID, models.ActionFinishedWithFailure, "Failed to parse action payload: "+err.Error(), models.ErrParseFailed, nil, outboundChannel, payload.ActionType, nil)
 		log.Errorf("Error parsing action payload: %s", err)
 		return
 	}
@@ -157,6 +160,8 @@ func HandleActionMessage(instanceUUID uuid.UUID, payload models.ActionMessagePay
 	// Validate the action payload
 	err = action.Validate()
 	if err != nil {
+		// If validation fails, send a structured error reply using SendActionReplyV2 with ErrEditValidationFailed
+		SendActionReplyV2(instanceUUID, sender, payload.ActionUUID, models.ActionFinishedWithFailure, "Failed to validate action payload: "+err.Error(), models.ErrValidationFailed, nil, outboundChannel, payload.ActionType, nil)
 		log.Errorf("Error validating action payload: %s", err)
 		return
 	}
@@ -178,6 +183,9 @@ func HandleActionMessage(instanceUUID uuid.UUID, payload models.ActionMessagePay
 // It is a convenience wrapper around SendActionReplyWithAdditionalContext that doesn't include additional context.
 // It returns false if an error occurred during message generation or sending.
 func SendActionReply(instanceUUID uuid.UUID, userEmail string, actionUUID uuid.UUID, arstate models.ActionReplyState, payload interface{}, outboundChannel chan *models.UMHMessage, action models.ActionType) bool {
+	// TODO: The 'action' parameter will be used in the future for action-specific logic or logging
+	_ = action
+
 	return SendActionReplyWithAdditionalContext(instanceUUID, userEmail, actionUUID, arstate, payload, outboundChannel, action, nil)
 }
 
@@ -188,6 +196,9 @@ func SendActionReply(instanceUUID uuid.UUID, userEmail string, actionUUID uuid.U
 // This is the primary method for sending action status messages to users, and is
 // used for confirmation, progress updates, success, and failure notifications.
 func SendActionReplyWithAdditionalContext(instanceUUID uuid.UUID, userEmail string, actionUUID uuid.UUID, arstate models.ActionReplyState, payload interface{}, outboundChannel chan *models.UMHMessage, action models.ActionType, actionContext map[string]interface{}) bool {
+	// TODO: The 'action' parameter will be used in the future for action-specific logic or logging
+	_ = action
+
 	err := sendActionReplyInternal(instanceUUID, userEmail, actionUUID, arstate, payload, outboundChannel, actionContext)
 	if err != nil {
 		sentry.ReportIssuef(sentry.IssueTypeError, logger.For(logger.ComponentCommunicator), "Error generating action reply: %w", err)
@@ -283,3 +294,113 @@ func ParseActionPayload[T any](actionPayload interface{}) (T, error) {
 
 	return payload, nil
 }
+
+// SendActionReplyV2 sends an action reply with the given state and payload which is a map[string]interface{}
+// SendActionReplyV2 should be used only for ActionFailure messages for backwards compatibility. This will be changed in the future.
+// This function is preferred over SendActionReply as it is more flexible and allows for more complex payloads
+// The return type is a bool and returns false if an error occurred
+func SendActionReplyV2(
+	instanceUUID uuid.UUID,
+	userEmail string,
+	actionUUID uuid.UUID,
+	arstate models.ActionReplyState,
+	message string,
+	errorCode string,
+	payloadV2 map[string]interface{},
+	outboundChannel chan *models.UMHMessage,
+	action models.ActionType,
+	actionContext map[string]interface{},
+) bool {
+	// TODO: The 'action' parameter will be used in the future for action-specific logic or logging
+	_ = action
+
+	return sendActionReplyWithAdditionalContextV2(instanceUUID, userEmail, actionUUID, arstate, message, errorCode, payloadV2, outboundChannel, action, actionContext)
+}
+
+func sendActionReplyWithAdditionalContextV2(
+	instanceUUID uuid.UUID,
+	userEmail string,
+	actionUUID uuid.UUID,
+	arstate models.ActionReplyState,
+	message string,
+	errorCode string,
+	payloadV2 map[string]interface{},
+	outboundChannel chan *models.UMHMessage,
+	action models.ActionType,
+	actionContext map[string]interface{},
+) bool {
+	// TODO: The 'action' parameter will be used in the future for action-specific logic or logging
+	_ = action
+
+	err := sendActionReplyInternalV2(instanceUUID, userEmail, actionUUID, arstate, message, errorCode, payloadV2, outboundChannel, actionContext)
+	if err != nil {
+		sentry.ReportIssuef(sentry.IssueTypeError, logger.For(logger.ComponentCommunicator), "Error generating action reply: %w", err)
+		return false
+	}
+	return true
+}
+
+func sendActionReplyInternalV2(
+	instanceUUID uuid.UUID,
+	userEmail string,
+	actionUUID uuid.UUID,
+	arstate models.ActionReplyState,
+	message string,
+	errorCode string,
+	payloadV2 map[string]interface{},
+	outboundChannel chan *models.UMHMessage,
+	actionContext map[string]interface{},
+) error {
+	payloadResponse := ConstructActionReplyV2Response(message, errorCode, arstate, actionUUID.String(), payloadV2, actionContext)
+
+	umhMessageV2, err := generateUMHMessage(instanceUUID, userEmail, models.ActionReply, payloadResponse)
+	if err != nil {
+		sentry.ReportIssuef(sentry.IssueTypeError, logger.For(logger.ComponentCommunicator), "Error generating umh message: %w", err)
+		return err
+	}
+	outboundChannel <- &umhMessageV2
+
+	return nil
+}
+
+// ConstructActionReplyV2Response creates a new ActionReplyResponseSchemaJson
+func ConstructActionReplyV2Response(
+	message string,
+	errorCode string,
+	actionReplyState models.ActionReplyState,
+	actionUUID string,
+	payloadV2 map[string]interface{},
+	actionContext models.ActionReplyResponseSchemaJsonActionContext,
+) models.ActionReplyResponseSchemaJson {
+	//  For backwards compatibility, we need to support the old payload format
+	//  This will be removed in the future
+	var payload interface{}
+	if message != "" {
+		payload = message
+	}
+
+	// if payload is still nil, we use the first message from payloadV2
+	if payload == nil {
+		// Get first message from map regardless of key
+		payload = GetFirstMessageFromMap(payloadV2)
+	}
+
+	return models.ActionReplyResponseSchemaJson{
+		ActionContext:      actionContext,
+		ActionReplyPayload: payload,
+		ActionReplyPayloadV2: &models.ActionReplyResponseSchemaJsonActionReplyPayloadV2{
+			Message:   message,
+			ErrorCode: &errorCode,
+			Payload:   payloadV2,
+		},
+		ActionReplyState: models.ActionReplyResponseSchemaJsonActionReplyState(actionReplyState),
+		ActionUUID:       actionUUID,
+	}
+}
+
+func GetFirstMessageFromMap(msg map[string]interface{}) interface{} {
+	for _, v := range msg {
+		return v
+	}
+	return nil
+}
diff --git a/umh-core/pkg/communicator/actions/benthos-log-checker.go b/umh-core/pkg/communicator/actions/benthos-log-checker.go
new file mode 100644
index 0000000000..749cfc2fe8
--- /dev/null
+++ b/umh-core/pkg/communicator/actions/benthos-log-checker.go
@@ -0,0 +1,50 @@
+// Copyright 2025 UMH Systems GmbH
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package actions
+
+import (
+	"strings"
+
+	"github.com/united-manufacturing-hub/united-manufacturing-hub/umh-core/pkg/service/s6"
+)
+
+var ErrBenthosLogLines = []string{
+	"unable to infer",
+	"Config lint error",
+}
+
+// CheckBenthosLogLinesForConfigErrors examines a slice of S6 log entries for
+// Benthos configuration errors. It performs case-insensitive checks for known
+// error patterns combined with the word "error". Returns true if any errors
+// are detected, false otherwise.
+// This function is used to detect fatal configuration errors that would cause
+// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+// abort the startup process rather than waiting for the full timeout period,
+// as these errors require configuration changes to resolve.
+func CheckBenthosLogLinesForConfigErrors(logs []s6.LogEntry) bool {
+	for _, log := range logs {
+		logContent := strings.ToLower(log.Content)
+		if !strings.Contains(logContent, "error") {
+			continue
+		}
+
+		for _, errLine := range ErrBenthosLogLines {
+			if strings.Contains(logContent, strings.ToLower(errLine)) {
+				return true
+			}
+		}
+	}
+	return false
+}
diff --git a/umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go b/umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
index 745ebe209e..678ece4309 100644
--- a/umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
+++ b/umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
@@ -519,17 +519,20 @@ func (a *DeployDataflowComponentAction) Execute() (interface{}, map[string]inter
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("deploy", a.name)+"configuration updated; but ignoring the health check", a.outboundChannel, models.EditDataFlowComponent)
 		} else {
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("deploy", a.name)+"configuration updated; waiting to become active", a.outboundChannel, models.DeployDataFlowComponent)
-			err = a.waitForComponentToBeActive()
+			errCode, err := a.waitForComponentToBeActive(ctx)
 			if err != nil {
 				errorMsg := Label("deploy", a.name) + fmt.Sprintf("failed to wait for dataflow component to be active: %v", err)
-				SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, a.outboundChannel, models.DeployDataFlowComponent)
+				// waitForComponentToBeActive gives us the error code, which we then forward to the frontend using the SendActionReplyV2 function
+				// the error code is a string that can be used to identify the error reason
+				// the main reason for this is to allow the frontend to determine whether it should offer a retry option or not
+				SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, errCode, nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
 				return nil, nil, fmt.Errorf("%s", errorMsg)
 			}
 		}
 	}
 
 	// return success message, but do not send it as this is done by the caller
-	successMsg := Label("deploy", a.name) + "success"
+	successMsg := Label("deploy", a.name) + "component successfully deployed and activated"
 
 	return successMsg, nil, nil
 }
@@ -551,7 +554,10 @@ func (a *DeployDataflowComponentAction) GetParsedPayload() models.CDFCPayload {
 
 // waitForComponentToBeActive polls live FSM state until the new component
 // becomes active or the timeout hits (→ delete unless ignoreHealthCheck).
-func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
+// the function returns the error code and and the error message via an error object
+// the error code is a string that is sent to the frontend to allow it to determine if the action can be retried or not
+// the error message is sent to the frontend to allow the user to see the error message
+func (a *DeployDataflowComponentAction) waitForComponentToBeActive(ctx context.Context) (string, error) {
 	// checks the system snapshot
 	// 1. waits for the instance to appear in the system snapshot
 	// 2. takes the logs of the instance and sends them to the user in 1-second intervals
@@ -586,8 +592,9 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 			err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
 			if err != nil {
 				a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+				return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' failed to activate within timeout but could not be removed: %v. Please check system load and consider removing the component manually", a.name, err)
 			}
-			return fmt.Errorf("dataflow component '%s' was removed because it did not become active within the timeout period", a.name)
+			return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' was removed because it did not become active within the timeout period. Please check system load or component configuration and try again", a.name)
 
 		case <-ticker.C:
 
@@ -612,23 +619,40 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						continue
 					}
 					if instance.CurrentState == "active" || instance.CurrentState == "idle" {
-						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
+						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("component successfully activated with state '%s', configuration verified", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+					// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+					// abort the startup process rather than waiting for the full timeout period,
+					// as these errors require configuration changes to resolve.
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("deploy", a.name)+"configuration error detected. Removing component...", a.outboundChannel, models.DeployDataFlowComponent)
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' has invalid configuration but could not be removed: %v. Please check your logs and consider removing the component manually", a.name, err)
 						}
+
+						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed due to configuration errors. Please check the component logs, fix the configuration issues, and try deploying again", a.name)
 					}
+
 				}
 				if !found {
 					stateMessage := RemainingPrefixSec(remainingSeconds) + "waiting for it to appear in the config"
diff --git a/umh-core/pkg/communicator/actions/edit-dataflowcomponent.go b/umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
index 2c8462fc0b..0412bae30e 100644
--- a/umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
+++ b/umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
@@ -407,7 +407,7 @@ func (a *EditDataflowComponentAction) Execute() (interface{}, map[string]interfa
 				err := yaml.Unmarshal([]byte(processor.Data), &procConfig)
 				if err != nil {
 					errMsg := Label("edit", a.name) + fmt.Sprintf("failed to parse pipeline processor %s: %s", processorName, err.Error())
-					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, a.outboundChannel, models.EditDataFlowComponent)
+					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, models.ErrRetryRollbackTimeout, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
 					return nil, nil, fmt.Errorf("%s", errMsg)
 				}
 
@@ -477,17 +477,20 @@ func (a *EditDataflowComponentAction) Execute() (interface{}, map[string]interfa
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration updated; but ignoring the health check", a.outboundChannel, models.EditDataFlowComponent)
 		} else {
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration updated; waiting to become active", a.outboundChannel, models.EditDataFlowComponent)
-			err = a.waitForComponentToBeActive()
+			errCode, err := a.waitForComponentToBeActive(ctx)
 			if err != nil {
 				errorMsg := Label("edit", a.name) + fmt.Sprintf("failed to wait for dataflow component to be active: %v", err)
-				SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, a.outboundChannel, models.EditDataFlowComponent)
+				// waitForComponentToBeActive gives us the error code, which we then forward to the frontend using the SendActionReplyV2 function
+				// the error code is a string that can be used to identify the error reason
+				// the main reason for this is to allow the frontend to determine whether it should offer a retry option or not
+				SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, errCode, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
 				return nil, nil, fmt.Errorf("%s", errorMsg)
 			}
 		}
 	}
 
 	// return success message, but do not send it as this is done by the caller
-	successMsg := Label("edit", a.name) + "success"
+	successMsg := Label("edit", a.name) + "component successfully updated and activated"
 
 	return successMsg, nil, nil
 }
@@ -519,7 +522,10 @@ func (a *EditDataflowComponentAction) GetComponentUUID() uuid.UUID {
 // Concurrency note: The method never writes to `systemSnapshot`; the FSM runtime
 // is the single writer.  We only take read‑locks while **copying** the full
 // snapshot to avoid holding the lock during YAML comparisons.
-func (a *EditDataflowComponentAction) waitForComponentToBeActive() error {
+// the function returns the error code and and the error message via an error object
+// the error code is a string that is sent to the frontend to allow it to determine if the action can be retried or not
+// the error message is sent to the frontend to allow the user to see the error message
+func (a *EditDataflowComponentAction) waitForComponentToBeActive(ctx context.Context) (string, error) {
 	// checks the system snapshot
 	// 1. waits for the component to appear in the system snapshot (relevant for changed name)
 	// 2. waits for the component to be active
@@ -542,10 +548,10 @@ func (a *EditDataflowComponentAction) waitForComponentToBeActive() error {
 			defer cancel()
 			_, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
 			if err != nil {
-
 				a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
+				return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' failed to activate within timeout and could not be rolled back: %v. Please check system load and consider manually restoring the previous configuration", a.name, err)
 			}
-			return fmt.Errorf("dataflow component %s was not active in time and was rolled back to the old config", a.name)
+			return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' was rolled back to its previous configuration because it did not become active within the timeout period. Please check system load or component configuration and try again", a.name)
 
 		case <-ticker.C:
 			elapsed := time.Since(startTime)
@@ -590,27 +596,44 @@ func (a *EditDataflowComponentAction) waitForComponentToBeActive() error {
 							continue
 						}
 
-						if instance.CurrentState != "active" && instance.CurrentState != "idle" {
-							// currentStateReason contains more information on why the DFC is in its current state
-							currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-							stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+						if instance.CurrentState == "active" || instance.CurrentState == "idle" {
+							stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("component successfully activated with state '%s', configuration verified", instance.CurrentState)
 							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
 								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							// send the benthos logs to the user
-							logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-							// only send the logs that have not been sent yet
-							if len(logs) > len(lastLogs) {
-								lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
-							}
+							return "", nil
+						}
 
-							continue
-						} else {
-							stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
-								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							return nil
+						// currentStateReason contains more information on why the DFC is in its current state
+						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
+							stateMessage, a.outboundChannel, models.EditDataFlowComponent)
+						// send the benthos logs to the user
+						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+						// only send the logs that have not been sent yet
+						if len(logs) > len(lastLogs) {
+
+							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
 						}
+						// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+						// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+						// abort the startup process rather than waiting for the full timeout period,
+						// as these errors require configuration changes to resolve.
+						if CheckBenthosLogLinesForConfigErrors(logs) {
+							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration error detected. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+
+							_, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
+							if err != nil {
+								a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
+								return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' has invalid configuration but could not be rolled back: %v. Please check your logs and consider manually restoring the previous configuration", a.name, err)
+							}
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back to its previous configuration due to configuration errors. Please check the component logs, fix the configuration issues, and try editing again", a.name)
+						}
+
+						continue
+
 					}
 				}
 				if !found {
diff --git a/umh-core/pkg/models/action_models.go b/umh-core/pkg/models/action_models.go
index b04705e6ff..15f44486ce 100644
--- a/umh-core/pkg/models/action_models.go
+++ b/umh-core/pkg/models/action_models.go
@@ -531,3 +531,70 @@ type GetLogsResponse struct {
 type GetDataflowcomponentMetricsRequest struct {
 	UUID string `json:"uuid" binding:"required"`
 }
+
+type ActionReplyResponseSchemaJson struct {
+	// Additional contextual data for the action, allows arbitrary key-value pairs.
+	ActionContext ActionReplyResponseSchemaJsonActionContext `json:"actionContext,omitempty" yaml:"actionContext,omitempty" mapstructure:"actionContext,omitempty"`
+
+	// Legacy action reply payload, can be a string or an object for backward
+	// compatibility.
+	ActionReplyPayload interface{} `json:"actionReplyPayload" yaml:"actionReplyPayload" mapstructure:"actionReplyPayload"`
+
+	// Structured response payload for any action reply.
+	ActionReplyPayloadV2 *ActionReplyResponseSchemaJsonActionReplyPayloadV2 `json:"actionReplyPayloadV2,omitempty" yaml:"actionReplyPayloadV2,omitempty" mapstructure:"actionReplyPayloadV2,omitempty"`
+
+	// State of the action reply.
+	ActionReplyState ActionReplyResponseSchemaJsonActionReplyState `json:"actionReplyState" yaml:"actionReplyState" mapstructure:"actionReplyState"`
+
+	// Unique identifier for the action.
+	ActionUUID string `json:"actionUUID" yaml:"actionUUID" mapstructure:"actionUUID"`
+}
+
+// Additional contextual data for the action, allows arbitrary key-value pairs.
+type ActionReplyResponseSchemaJsonActionContext map[string]interface{}
+
+type ActionReplyResponseSchemaJsonActionReplyPayloadV2 struct {
+	// Machine-readable error code (e.g., 'ERR_CONFIG_CHANGED').
+	ErrorCode *string `json:"errorCode,omitempty" yaml:"errorCode,omitempty" mapstructure:"errorCode,omitempty"`
+
+	// Human-readable error message.
+	Message string `json:"message" yaml:"message" mapstructure:"message"`
+
+	// Additional payload for the action reply.
+	Payload ActionReplyResponseSchemaJsonActionReplyPayloadV2Payload `json:"payload,omitempty" yaml:"payload,omitempty" mapstructure:"payload,omitempty"`
+}
+
+type ActionReplyResponseSchemaJsonActionReplyState string
+
+const ActionReplyResponseSchemaJsonActionReplyStateActionConfirmed ActionReplyResponseSchemaJsonActionReplyState = "action-confirmed"
+const ActionReplyResponseSchemaJsonActionReplyStateActionExecuting ActionReplyResponseSchemaJsonActionReplyState = "action-executing"
+const ActionReplyResponseSchemaJsonActionReplyStateActionFailure ActionReplyResponseSchemaJsonActionReplyState = "action-failure"
+const ActionReplyResponseSchemaJsonActionReplyStateActionSuccess ActionReplyResponseSchemaJsonActionReplyState = "action-success"
+
+// var enumValues_ActionReplyResponseSchemaJsonActionReplyState = []interface{}{
+// 	"action-confirmed",
+// 	"action-executing",
+// 	"action-success",
+// 	"action-failure",
+// }
+
+type ActionReplyResponseSchemaJsonActionReplyPayloadV2Payload map[string]interface{}
+
+// Error codes for the action reply payload.
+// The error codes have two purposes:
+// 1. To allow the frontend to determine if the action can be retried or not
+// 2. To display them to the user
+// if an error code starts with "ERR_RETRY_" the action can be retried (see fetcher.js in the frontend)
+const (
+	// ErrParseFailed is the error code for a failed parse of the action payload.
+	// the error is not retryable because the parsing is deterministic
+	ErrParseFailed = "ERR_ACTION_PARSE_FAILED"
+	// ErrValidationFailed is the error code for a failed validation of the action payload.
+	// the error is not retryable because the validation is deterministic
+	ErrValidationFailed = "ERR_VALIDATION_FAILED"
+	// ErrRetryRollbackTimeout is the error code for a timeout during the dfc deployment.
+	// It is retryable because the timeout might be caused by a busy system.
+	ErrRetryRollbackTimeout = "ERR_RETRY_ROLLBACK_TIMEOUT"
+	// ErrConfigFileInvalid is sent when the deployment of a dfc fails because the config file is invalid.
+	ErrConfigFileInvalid = "ERR_CONFIG_FILE_INVALID"
+)


Reviews:
user: login: coderabbitai[bot]
body: **Actionable comments posted: 2**

<details>
<summary>🧹 Nitpick comments (11)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary><blockquote>

`23-27`: **Add a doc-comment for exported identifiers**

`ErrBenthosLogLines` is exported (starts with a capital letter) but has no accompanying doc-string that begins with the identifier’s name.  
Go tooling (`go vet`, `golint`, `staticcheck`) will flag this.

```diff
+// ErrBenthosLogLines contains substrings that indicate a Benthos
+// configuration failure in the service logs.
 var ErrBenthosLogLines = []string{
```

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (4)</summary><blockquote>

`410-412`: **Mismatch between error cause and error-code**

The parse failure for a single processor is flagged with
`ERR_RETRY_DFC_TIMEOUT`, which semantically points to a *timeout* problem, not
to an *invalid configuration*.  This makes client-side handling harder.

Consider introducing/using a code like `ERR_INVALID_PROCESSOR_CONFIG`
(or `models.ErrConfigFileInvalid` for consistency) instead:

```diff
-SendActionReplyV2(..., "ERR_RETRY_DFC_TIMEOUT", ...)
+SendActionReplyV2(..., "ERR_INVALID_PROCESSOR_CONFIG", ...)
```

---

`480-485`: **Shadowing `err` hampers readability**

Inside the `else` block you redeclare both `errCode` **and** `err`:

```go
errCode, err := a.waitForComponentToBeActive()
```

`err` shadows the one defined earlier in the outer scope. Although legal, this
often confuses readers and static analysis.  Prefer a different name:

```diff
-errCode, err := a.waitForComponentToBeActive()
+errCode, waitErr := a.waitForComponentToBeActive()
```

---

`593-599`: **Return-path clarification**

`waitForComponentToBeActive` returns an empty error-code on success:

```go
return "", nil
```

Down-stream callers have to remember that *empty string means success*.  An
unexported sentinel (e.g. `noErrCode`) or `nil` for the code (change signature
to `*string`) would be clearer.  
If changing the signature is too invasive, at least document this contract in
a comment above the function.

---

`614-624`: **Duplicate failure replies & possible user confusion**

Inside the config-error branch you:

1. Send `"Failed to parse config. Rolling back…"` (`ActionExecuting`)
2. On rollback failure send `ActionFinishedWithFailure`
3. *Always* return an error, which the caller also converts to
   `ActionFinishedWithFailure`

This can produce two *FinishedWithFailure* events for one root cause.  Consider
letting **either** `waitForComponentToBeActive` emit the terminal event **or**
delegate that responsibility exclusively to the caller to avoid duplicate UI
signals.

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (2)</summary><blockquote>

`522-527`: **Variable shadowing mirrors the issue in edit-flow**

Same remark as for `EditDataflowComponentAction`:  
`errCode, err := a.waitForComponentToBeActive()` shadows the outer `err`.
Rename the inner variable for clarity.

```diff
-errCode, err := a.waitForComponentToBeActive()
+errCode, waitErr := a.waitForComponentToBeActive()
```

---

`554-591`: **Opportunity to deduplicate polling logic**

Both deploy & edit actions contain almost identical polling loops
(≈200 lines).  Extracting the common parts into a helper (e.g.
`pollDFCState(ctx, cfg, callbacks…)`) would:

* reduce code duplication,
* avoid future divergence bugs,
* make unit testing easier.

This aligns with the DRY principle and avoids a “copy/paste loop smell”.

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/actions.go (3)</summary><blockquote>

`162-163`: **Consistent error code pattern for validation failures**

The use of `ErrEditValidationFailed` is appropriate here, though the error code seems to contain "Edit" which might be too specific if this code path could be triggered for other action types.


Consider making the error code more generic if it's used across multiple action types:

```diff
- SendActionReplyV2(instanceUUID, sender, payload.ActionUUID, models.ActionFinishedWithFailure, "Failed to validate action payload: "+err.Error(), models.ErrEditValidationFailed, nil, outboundChannel, payload.ActionType, nil)
+ SendActionReplyV2(instanceUUID, sender, payload.ActionUUID, models.ActionFinishedWithFailure, "Failed to validate action payload: "+err.Error(), models.ErrValidationFailed, nil, outboundChannel, payload.ActionType, nil)
```

---

`355-388`: **Robust backward compatibility handling**

The function properly handles backward compatibility by supporting both the new structured format and legacy format. 


Consider adding tests for this function to ensure the backward compatibility logic works as expected, especially the fallback logic when message is empty.

---

`390-395`: **Simple utility that could be improved**

This function does what it needs to, but has a potential issue - it's not deterministic which value will be returned if there are multiple entries in the map, due to map iteration order being random in Go.


Consider being more explicit about which value to use:

```diff
func GetFirstMessageFromMap(msg map[string]interface{}) interface{} {
-  for _, v := range msg {
-    return v
-  }
+  // Try to find a "message" key first
+  if v, ok := msg["message"]; ok {
+    return v
+  }
+  // Then try "error" key as fallback
+  if v, ok := msg["error"]; ok {
+    return v
+  }
+  // Otherwise return any value
+  for _, v := range msg {
+    return v
+  }
  return nil
}
```

</blockquote></details>
<details>
<summary>umh-core/pkg/models/action_models.go (1)</summary><blockquote>

`567-580`: **Action reply state enums with commented out validation**

The enum constants are well-defined. I notice there's commented out validation code for enum values which should be addressed.


Either remove the commented code completely or implement proper validation:

```diff
- // var enumValues_ActionReplyResponseSchemaJsonActionReplyState = []interface{}{
- // 	"action-confirmed",
- // 	"action-executing",
- // 	"action-success",
- // 	"action-failure",
- // }
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 313c9748748acccf30a92602960ad53ddb8d351b and ca66ee2578909563ac5e42e4555753ccccd89930.

</details>

<details>
<summary>📒 Files selected for processing (5)</summary>

* `umh-core/pkg/communicator/actions/actions.go` (3 hunks)
* `umh-core/pkg/communicator/actions/benthos-log-checker.go` (1 hunks)
* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)
* `umh-core/pkg/models/action_models.go` (1 hunks)

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/benthos-log-checker.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/actions.go`
- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/models/action_models.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/benthos-log-checker.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/actions.go`
- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/models/action_models.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (1)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/service/s6/s6.go (1)</summary>

* `LogEntry` (88-93)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (2)
* GitHub Check: Unit Tests
* GitHub Check: Integration Tests (3)
* GitHub Check: Integration Tests (1)
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

<details>
<summary>🔇 Additional comments (7)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (4)</summary>

`152-153`: **Improved error handling with structured replies**

Good enhancement to use `SendActionReplyV2` with specific error codes. This allows the frontend to handle specific error conditions more intelligently and decide when to show retry options.

---

`290-309`: **Well-structured function for enhanced action replies**

Good implementation of the new action reply mechanism. The function signature is clear with separate parameters for message, error code, and payload. 


However, consider improving the function comments to clarify the expected usage pattern:

```diff
// SendActionReplyV2 sends an action reply with the given state and payload which is a map[string]interface{}
// SendActionReplyV2 should be used only for ActionFailure messages for backwards compatibility. This will be changed in the future.
- // This function is preferred over SendActionReply as it is more flexible and allows for more complex payloads
+ // This function is preferred over SendActionReply for failure scenarios as it provides error codes and allows for more structured error reporting. 
+ // The error code enables clients to implement specific retry logic based on the error type.
// The return type is a bool and returns false if an error occurred
```

---

`311-330`: **Helper function follows established pattern**

The implementation correctly follows the pattern established in the original send action reply functions.

---

`332-353`: **Internal implementation properly handles error reporting**

The implementation correctly constructs the response and handles error reporting to Sentry. Good separation of concerns between the public API and internal implementation.

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (3)</summary>

`535-551`: **Well-structured schema for action replies**

The new `ActionReplyResponseSchemaJson` struct is well-designed with clear field documentation. It properly separates legacy and new payload formats for backward compatibility.

---

`553-565`: **Clear structured payload type definitions**

Good job on providing clear types with proper documentation for each field in the structured payload. The inclusion of an error code field is particularly useful for frontend error handling.

---

`583-593`: **Well-defined error constants with clear naming convention**

The error constants follow a clear naming convention with prefixes indicating retryable errors (`ERR_RETRY_`) vs. non-retryable errors (`ERR_ABORT_`). This aligns well with the PR objectives of allowing the frontend to decide when to offer retry options.


Consider adding short documentation comments for each error code to explain when they're used:

```diff
const (
+	// Error code for action payload parsing failures that can be retried
	ErrRetryParseFailed     = "ERR_RETRY_ACTION_PARSE_FAILED"
+	// Error code for validation failures during editing
	ErrEditValidationFailed = "ERR_EDIT_VALIDATION_FAILED"
+	// Error code for fatal execution failures that cannot be retried
	ErrAbortExecutionFailed = "ERR_ABORT_EXECUTION_FAILED"
	// Add documentation for remaining error codes...
)
```

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-19T12:27:32Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 0**

<details>
<summary>🧹 Nitpick comments (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (1)</summary><blockquote>

`634-646`: **Improve error message for successful component removal.**

The error message when a component is successfully removed due to configuration errors could be more informative.


```diff
-            SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC removed", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+            SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC removed due to configuration errors. Please fix your configuration before redeploying.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between ca66ee2578909563ac5e42e4555753ccccd89930 and e8f66514cb54c82208cd3418618bf855be53d750.

</details>

<details>
<summary>📒 Files selected for processing (1)</summary>

* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`

</details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (5)</summary>

* GitHub Check: Integration Tests (2)
* GitHub Check: Integration Tests (3)
* GitHub Check: Integration Tests (1)
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

<details>
<summary>🔇 Additional comments (6)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (6)</summary>

`523-526`: **Good enhancement of error reporting.**

The use of `SendActionReplyV2` to pass error codes to the frontend is a good improvement that allows more sophisticated error handling by the client.

---

`554-554`: **Good update to function signature.**

Updating the function signature to return an error code along with the error allows for more precise error handling downstream.

---

`590-590`: **Correctly implementing retry pattern with appropriate error code.**

Using `models.ErrRetryRollbackTimeout` aligns with the PR objective to allow the frontend to offer retry options for specific error codes.

---

`618-619`: **Good simplification of success case.**

Clear success path that returns immediately when the component reaches the active or idle state.

---

`621-632`: **Enhanced status reporting with detailed state reasons.**

This improvement provides more context to users about the current state of the component during deployment.

---

`639-646`: **Potential double error notification fixed.**

The code now correctly handles the error notification flow for configuration errors by:
1. Sending a specific failure notification with appropriate context
2. Returning with the proper error code

This fixes the issue mentioned in a previous review about inconsistent use of error codes after auto-removal.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-19T12:34:00Z
user: login: JeremyTheocharis
state: CHANGES_REQUESTED
author_association: MEMBER
submitted_at: 2025-05-20T08:25:28Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 4**

<details>
<summary>♻️ Duplicate comments (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (1)</summary><blockquote>

`618-650`: _🛠️ Refactor suggestion_

**Proactive detection and handling of Benthos configuration errors.**

This change adds early detection and handling of Benthos configuration errors, preventing the system from waiting for a full timeout when such errors are detected. This is a significant improvement that aligns with the PR objective of "early aborts when benthos configuration errors occur."

However, there are a couple of issues to address:



1. Using `context.Background()` at line 640 creates a new context instead of reusing the existing one. This is already noted in the comments.

2. The code could send two `ActionFinishedWithFailure` events with the same error code, which could confuse the frontend. Recommended to consolidate this into a single terminal event.

```diff
if CheckBenthosLogLinesForConfigErrors(logs) {
    SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
    ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
    defer cancel()
    err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
    if err != nil {
-       a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
-       SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not removed. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+       a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+       SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "Failed to remove DFC due to config error. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+       return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was not removed because of a config error", a.name)
    } else {
-       SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC removed", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+       SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC removed due to config error. Please correct your configuration and try again.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+       return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
    }
-   return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
}
```

This change ensures that exactly one terminal event is sent and improves the error message clarity.

</blockquote></details>

</blockquote></details>

<details>
<summary>🧹 Nitpick comments (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (1)</summary><blockquote>

`522-522`: **Consider unifying this function with DeployDataflowComponentAction.**

As noted in the review comment, this function appears to have similar functionality to the equivalent in `deploy-dataflowcomponent.go`. Consider extracting the common logic to a shared helper function to avoid code duplication and maintenance issues.


Create a shared helper function in a separate file like `action_helper.go`:

```go
// WaitForComponentToBeActive is a shared helper that polls live FSM state until the component becomes active.
// It's used by both Deploy and Edit actions with slight differences handled through the parameters.
func WaitForComponentToBeActive(
    instanceUUID uuid.UUID,
    userEmail string,
    actionUUID uuid.UUID,
    componentName string,
    systemSnapshotManager *fsm.SnapshotManager,
    configManager config.ConfigManager,
    outboundChannel chan *models.UMHMessage,
    actionType models.ActionType,
    componentUUID uuid.UUID,
    rollbackConfig *config.DataFlowComponentConfig, // nil for deploy, populated for edit
    actionLogger *zap.SugaredLogger,
) (string, error) {
    // Implement shared logic here
}
```

Then modify both actions to use this shared function.

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 1070981eb207d88ff6dab3b41accc45214a31931 and 1cc6a5a31876fd44aeda47c20d5e7df81254671b.

</details>

<details>
<summary>📒 Files selected for processing (3)</summary>

* `umh-core/pkg/communicator/actions/benthos-log-checker.go` (1 hunks)
* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🚧 Files skipped from review as they are similar to previous changes (1)</summary>

* umh-core/pkg/communicator/actions/benthos-log-checker.go

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (2)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (8)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/action_helper.go (3)</summary>

* `Label` (97-99)
* `RemainingPrefixSec` (87-89)
* `SendLimitedLogs` (46-84)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/actions.go (2)</summary>

* `SendActionReplyV2` (295-309)
* `SendActionReply` (184-186)

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (5)</summary>

* `ActionFinishedWithFailure` (347-347)
* `DeployDataFlowComponent` (160-160)
* `ErrRetryRollbackTimeout` (591-591)
* `ActionExecuting` (343-343)
* `ErrConfigFileInvalid` (592-592)

</details>
<details>
<summary>umh-core/pkg/service/benthos/benthos.go (2)</summary>

* `ServiceInfo` (114-121)
* `BenthosStatus` (123-151)

</details>
<details>
<summary>umh-core/pkg/service/dataflowcomponent/dataflowcomponent.go (1)</summary>

* `ServiceInfo` (76-85)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary>

* `CheckBenthosLogLinesForConfigErrors` (36-50)

</details>
<details>
<summary>umh-core/pkg/constants/actions.go (1)</summary>

* `ActionTimeout` (22-22)

</details>
<details>
<summary>umh-core/pkg/config/dataflowcomponentserviceconfig/utils.go (1)</summary>

* `GenerateUUIDFromName` (60-62)

</details>

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (9)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (2)</summary>

* `SendActionReplyV2` (295-309)
* `SendActionReply` (184-186)

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (6)</summary>

* `ActionFinishedWithFailure` (347-347)
* `EditDataFlowComponent` (162-162)
* `ErrRetryRollbackTimeout` (591-591)
* `ActionExecuting` (343-343)
* `DeployDataFlowComponent` (160-160)
* `ErrConfigFileInvalid` (592-592)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/action_helper.go (3)</summary>

* `Label` (97-99)
* `RemainingPrefixSec` (87-89)
* `SendLimitedLogs` (46-84)

</details>
<details>
<summary>umh-core/pkg/service/benthos/benthos.go (2)</summary>

* `ServiceInfo` (114-121)
* `BenthosStatus` (123-151)

</details>
<details>
<summary>umh-core/pkg/service/dataflowcomponent/dataflowcomponent.go (1)</summary>

* `ServiceInfo` (76-85)

</details>
<details>
<summary>umh-core/pkg/service/benthos_monitor/benthos_monitor.go (1)</summary>

* `ServiceInfo` (144-151)

</details>
<details>
<summary>umh-core/pkg/fsm/benthos/models.go (1)</summary>

* `BenthosObservedState` (113-119)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary>

* `CheckBenthosLogLinesForConfigErrors` (36-50)

</details>
<details>
<summary>umh-core/pkg/constants/actions.go (1)</summary>

* `ActionTimeout` (22-22)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (1)
* GitHub Check: Integration Tests (2)
* GitHub Check: Unit Tests
* GitHub Check: Integration Tests (3)
* GitHub Check: Build and Push (arm64)
* GitHub Check: Build and Push (amd64)

</details>

<details>
<summary>🔇 Additional comments (2)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (2)</summary>

`522-525`: **Function now returns error code for structured failure handling.**

The function signature has been updated to return both an error code (string) and an error, allowing for improved error reporting with the new `SendActionReplyV2` function. This enables the frontend to determine whether to offer a retry option based on the error code.


To document the meaning and purpose of the returned values:
```go
// waitForComponentToBeActive polls live FSM state until the new component
// becomes active or the timeout hits (→ delete unless ignoreHealthCheck).
// Returns an error code string and error if the component fails to become active.
// The error code can be used by the frontend to determine whether to offer a retry option.
```

---

`590-590`: **LGTM: Clear error code for timeout situation.**

The code correctly returns the `models.ErrRetryRollbackTimeout` error code for timeout situations, which aligns with the PR objectives to enable the frontend to make decisions about retry options.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T14:47:09Z
user: login: FreiPaul
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T14:51:11Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 3**

<details>
<summary>♻️ Duplicate comments (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (1)</summary><blockquote>

`643-643`: _⚠️ Potential issue_

**Use parent context instead of creating a new background context**

Creating a new background context breaks the context chain and ignores any cancellation signals from the parent context. You should reuse the existing context or derive a new timeout context from it.

```diff
-							ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+							ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout) // TODO: Use parent context
```

This pattern appears in several places in the code. Consider tracking the main context through the action lifecycle and derive timeouts from it.

</blockquote></details>

</blockquote></details>

<details>
<summary>🧹 Nitpick comments (6)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (3)</summary><blockquote>

`527-527`: **Fix typo in comment**

There's a typo in the comment: "weather" should be "whether".

```diff
-				// the main reason for this is to allow the frontend to determine weather it should offer a retry option or not
+				// the main reason for this is to allow the frontend to determine whether it should offer a retry option or not
```

---

`637-641`: **Add clarifying comment for Benthos log checking**

The function call to `CheckBenthosLogLinesForConfigErrors` is crucial for early detection of configuration issues, but the comment doesn't fully explain how this improves the user experience.

```diff
 					// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
 					// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
 					// abort the startup process rather than waiting for the full timeout period,
-					// as these errors require configuration changes to resolve.
+					// as these errors require configuration changes to resolve. This provides faster feedback
+					// to the user and avoids waiting for the full timeout when we know the component can't start.
```

---

`528-528`: **Document why SendActionReplyV2 is used here**

As requested in a past review comment, explain why SendActionReplyV2 is appropriate here.

```diff
-				SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, errCode, nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+				// Using SendActionReplyV2 to include error codes in the response, allowing the frontend to 
+				// make intelligent decisions about offering retry options based on the nature of the error
+				SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, errCode, nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
```

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (3)</summary><blockquote>

`485-485`: **Fix typo in comment**

There's a typo in the comment: "weather" should be "whether".

```diff
-				// the main reason for this is to allow the frontend to determine weather it should offer a retry option or not
+				// the main reason for this is to allow the frontend to determine whether it should offer a retry option or not
```

---

`621-624`: **Improve rollback message in UI**

The message sent to the user when rolling back due to config errors is too brief and doesn't provide enough context for the user to understand what's happening.

```diff
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Detected Benthos configuration errors in logs. Rolling back to previous working configuration...", a.outboundChannel, models.EditDataFlowComponent)
```

---

`617-621`: **Add clarifying comment for Benthos log checking**

Similar to the deployment file, the function call to `CheckBenthosLogLinesForConfigErrors` could benefit from a more explanatory comment about how this improves the user experience.

```diff
 						// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
 						// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
 						// abort the startup process rather than waiting for the full timeout period,
-						// as these errors require configuration changes to resolve.
+						// as these errors require configuration changes to resolve. This provides faster feedback
+						// to the user and allows for immediate rollback instead of waiting for the full timeout.
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 1cc6a5a31876fd44aeda47c20d5e7df81254671b and 6c4aec232bd6174cd2bfc4224265754d1f073f0e.

</details>

<details>
<summary>📒 Files selected for processing (3)</summary>

* `umh-core/pkg/communicator/actions/actions.go` (3 hunks)
* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🚧 Files skipped from review as they are similar to previous changes (1)</summary>

* umh-core/pkg/communicator/actions/actions.go

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (1)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (8)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/action_helper.go (2)</summary>

* `RemainingPrefixSec` (87-89)
* `SendLimitedLogs` (46-84)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/actions.go (2)</summary>

* `SendActionReplyV2` (296-310)
* `SendActionReply` (185-187)

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (5)</summary>

* `ActionFinishedWithFailure` (347-347)
* `DeployDataFlowComponent` (160-160)
* `ErrRetryRollbackTimeout` (591-591)
* `ActionExecuting` (343-343)
* `ErrConfigFileInvalid` (592-592)

</details>
<details>
<summary>umh-core/pkg/service/benthos/benthos.go (2)</summary>

* `ServiceInfo` (114-121)
* `BenthosStatus` (123-151)

</details>
<details>
<summary>umh-core/pkg/service/dataflowcomponent/dataflowcomponent.go (1)</summary>

* `ServiceInfo` (76-85)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary>

* `CheckBenthosLogLinesForConfigErrors` (36-50)

</details>
<details>
<summary>umh-core/pkg/constants/actions.go (1)</summary>

* `ActionTimeout` (22-22)

</details>
<details>
<summary>umh-core/pkg/config/dataflowcomponentserviceconfig/utils.go (1)</summary>

* `GenerateUUIDFromName` (60-62)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (2)
* GitHub Check: Unit Tests
* GitHub Check: Integration Tests (1)
* GitHub Check: Integration Tests (3)
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T15:16:41Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 1**

<details>
<summary>♻️ Duplicate comments (3)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (1)</summary><blockquote>

`637-650`: _🛠️ Refactor suggestion_

**Improve error messages following guidelines.**

The error messages for configuration errors don't follow the error message guidelines fully. They lack clear context, detailed description, and actionable next steps.


```diff
-							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' not removed. Please check your configuration and consider removing the component manually", a.name)
+							return models.ErrConfigFileInvalid, fmt.Errorf("failed to remove dataflow component '%s' after detecting Benthos configuration errors: %v. Please check your configuration for syntax issues and remove the component manually using the management interface", a.name, err)
-							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was automatically removed due to Benthos configuration errors. Please review the logs above, fix the configuration issues, and redeploy", a.name)
```

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (2)</summary><blockquote>

`410-410`: _🛠️ Refactor suggestion_

**Use a constant for error code rather than a hardcoded string.**

Hardcoded string literals for error codes can lead to inconsistencies and make it harder to maintain the codebase. Define and use a constant from the models package instead.


```diff
-					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, "ERR_RETRY_DFC_TIMEOUT", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
+					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, models.ErrRetryDFCTimeout, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

Add this constant to the models package:
```go
// Error codes used in action replies
const (
    // ... existing constants
    ErrRetryDFCTimeout = "ERR_RETRY_DFC_TIMEOUT" // Error when DFC timeout occurs that can be retried
)
```

---

`621-630`: _🛠️ Refactor suggestion_

**Inconsistent error messages and duplicate return paths.**

The error messages for configuration errors need improvement to follow the error message guidelines. Also, both error paths return identical messages despite having different conditions.


```diff
- SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+ SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Detected Benthos configuration errors. Rolling back to previous configuration...", a.outboundChannel, models.EditDataFlowComponent)

- return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+ return models.ErrConfigFileInvalid, fmt.Errorf("failed to roll back dataflow component '%s' due to Benthos configuration errors: %v. Please fix your configuration before trying again", a.name, err)

- return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+ return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was successfully rolled back to previous configuration due to Benthos configuration errors. Please fix your configuration before trying again", a.name)
```

</blockquote></details>

</blockquote></details>

<details>
<summary>🧹 Nitpick comments (2)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (1)</summary><blockquote>

`587-588`: **Consider reusing the parent context.**

Creating a new background context here instead of using the passed context parameter might lead to context cancellation issues. It's generally better to propagate the parent context.


```diff
-			ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+			rollbackCtx, cancel := context.WithTimeout(ctx, constants.ActionTimeout)
```

Then use `rollbackCtx` in the subsequent call to prevent context leaks.

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (1)</summary><blockquote>

`622-625`: **Verify consistent use of SendActionReply vs SendActionReplyV2.**

In this error case you're using `SendActionReply` while elsewhere you're using `SendActionReplyV2`. For consistency, especially in error cases where you want to send error codes, consider using `SendActionReplyV2` here as well.


```diff
- SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+ SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", models.ErrConfigFileInvalid, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 6c4aec232bd6174cd2bfc4224265754d1f073f0e and 7dcdc2ce63647af72b5a6034d50f472cf4d45994.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Unit Tests
* GitHub Check: Integration Tests (1)
* GitHub Check: Integration Tests (3)
* GitHub Check: Integration Tests (2)
* GitHub Check: Build and Push (arm64)
* GitHub Check: Build and Push (amd64)

</details>

<details>
<summary>🔇 Additional comments (6)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (4)</summary>

`526-528`: **Clear documentation on the SendActionReplyV2 usage.**

Good explanatory comments that clearly document why we're using the V2 version and how the error codes are used. This helps future developers understand the purpose of this API change.

---

`557-557`: **Function signature updated correctly to return error code.**

The function now returns a string error code alongside the error, which aligns with the PR objective of providing more detailed error information to the frontend.

---

`593-593`: **Appropriate use of constant for error code.**

Good use of `models.ErrRetryRollbackTimeout` constant instead of a hardcoded string, which improves maintainability.

---

`596-621`: **Improved control flow with early return.**

Excellent improvement to immediately return success when the component is active or idle, rather than continuing with unnecessary processing.

</details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (2)</summary>

`480-487`: **Consistent implementation of error handling.**

The implementation correctly passes the error code to the frontend, allowing it to decide whether to offer a retry option, which aligns with the PR objectives.

---

`596-601`: **Improved control flow with early return on success.**

Good optimization to immediately return on success states rather than continuing with unnecessary processing.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T15:27:27Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 1**

<details>
<summary>♻️ Duplicate comments (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (1)</summary><blockquote>

`325-331`: **Helper duplicates unused-parameter issue**

`sendActionReplyWithAdditionalContextV2` also carries the unused `action` parameter; cascade the fix here as well to keep the public and private APIs consistent.

</blockquote></details>

</blockquote></details>

<details>
<summary>🧹 Nitpick comments (7)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (3)</summary><blockquote>

`152-155`: **Comment string references an undefined constant**

The inline comment refers to `ErrRetryParseFailed`, while the code passes `models.ErrParseFailed`.  
Keeping comments and code in sync is crucial for maintainability and to avoid confusion for future readers.

```diff
-// If parsing fails, send a structured error reply using SendActionReplyV2 with ErrRetryParseFailed
+// If parsing fails, send a structured error reply using SendActionReplyV2 with ErrParseFailed
```

---

`163-165`: **Same mismatch between comment and code**

The validation block exhibits the same constant-name mismatch (`ErrEditValidationFailed` vs `ErrValidationFailed`). Please update the comment.

---

`374-377`: **Non-deterministic fallback message**

`GetFirstMessageFromMap` returns the first (random) map value.  Go’s map iteration order is intentionally random, so the “first” element can vary between runs, harming reproducibility and tests.

If you need predictability, consider:

```go
func GetFirstMessageFromMap(m map[string]interface{}) interface{} {
    if len(m) == 0 {
        return nil
    }
    keys := make([]string, 0, len(m))
    for k := range m {
        keys = append(keys, k)
    }
    sort.Strings(keys)        // deterministic
    return m[keys[0]]
}
```

</blockquote></details>
<details>
<summary>umh-core/pkg/models/action_models.go (4)</summary><blockquote>

`535-552`: **Exported struct lacks a doc-string**

`ActionReplyResponseSchemaJson` is exported but has no package-level comment beginning with the type’s name, violating GoDoc conventions (see “100 Go Mistakes” #11).  

Add something like:

```go
// ActionReplyResponseSchemaJson represents the envelope sent back to the
// frontend for any action reply. It carries both the legacy payload and the
// new V2 payload while the system is in transition.
type ActionReplyResponseSchemaJson struct {
    …
}
```

---

`553-558`: **Missing documentation for exported type alias**

`ActionReplyResponseSchemaJsonActionContext` is exported. Add a doc comment that starts with the identifier’s name.

---

`567-573`: **Enum constants missing explanatory comment block**

The long constant names are fine, but each exported constant should either live in a `const (…)` group preceded by a single descriptive comment, or each constant should have its own comment starting with its name. This aids IDE tooltips and pkg.go.dev rendering.

---

`589-600`: **Keep error-code comments consistent with guidelines**

Good job providing context for each error code.  
Minor tweak: the first sentence of each comment should begin with the constant’s name to comply with GoDoc expectations.

```diff
-// ErrParseFailed is the error code for a failed parse of the action payload.
+// ErrParseFailed indicates a failed parse of the action payload.
```

Repeat for the other constants.

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 7dcdc2ce63647af72b5a6034d50f472cf4d45994 and 6a6d68fdcb941e623471d319477eb59e464a2c99.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `umh-core/pkg/communicator/actions/actions.go` (3 hunks)
* `umh-core/pkg/models/action_models.go` (1 hunks)

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/actions.go`
- `umh-core/pkg/models/action_models.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/actions.go`
- `umh-core/pkg/models/action_models.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (1)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (3)</summary><blockquote>

<details>
<summary>umh-core/pkg/models/action_models.go (12)</summary>

* `ActionFinishedWithFailure` (347-347)
* `ErrParseFailed` (591-591)
* `ActionType` (111-111)
* `ErrValidationFailed` (594-594)
* `ActionReplyState` (337-337)
* `UMHMessage` (79-84)
* `ActionReply` (93-93)
* `ActionReplyResponseSchemaJsonActionContext` (554-554)
* `ActionReplyResponseSchemaJson` (535-551)
* `ActionReplyResponseSchemaJsonActionReplyPayloadV2` (556-565)
* `Payload` (423-423)
* `ActionReplyResponseSchemaJsonActionReplyState` (567-567)

</details>
<details>
<summary>umh-core/pkg/sentry/report.go (2)</summary>

* `ReportIssuef` (46-48)
* `IssueTypeError` (27-27)

</details>
<details>
<summary>umh-core/pkg/logger/components.go (1)</summary>

* `ComponentCommunicator` (68-68)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (2)
* GitHub Check: Integration Tests (1)
* GitHub Check: Unit Tests
* GitHub Check: Integration Tests (3)
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T16:16:52Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 1**

<details>
<summary>♻️ Duplicate comments (4)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (4)</summary><blockquote>

`525-528`: **Document how error codes impact frontend behavior**

The comment explains the purpose of error codes, but doesn't provide details on specific codes or how the frontend interprets them.

---

`410-410`: _🛠️ Refactor suggestion_

**Use a constant for error code instead of hardcoded string**

Hardcoded string literals for error codes can lead to inconsistencies and make it harder to maintain the codebase.


Use a constant from the models package instead:

```diff
-SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, "ERR_RETRY_DFC_TIMEOUT", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
+SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, models.ErrRetryDFCTimeout, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

Add this constant to the models package:
```go
// Error codes used in action replies
const (
    // ... existing constants
    ErrRetryDFCTimeout = "ERR_RETRY_DFC_TIMEOUT" // Error when DFC timeout occurs that can be retried
)
```

---

`624-633`: _🛠️ Refactor suggestion_

**Make error messages consistent between failure cases**

The error messages for successful and failed rollbacks are identical and don't provide enough detail about what happened and what the user should do next.


```diff
 							if err != nil {
 								a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
-								return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+								return models.ErrConfigFileInvalid, fmt.Errorf("failed to roll back dataflow component '%s' due to config error: %v. Please check your configuration and try again or remove the component manually", a.name, err)
 							}
-							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was successfully rolled back to previous configuration due to Benthos config error. Please fix your configuration before trying again", a.name)
```

This follows the error message guidelines by providing context, a clear description of what happened, and actionable next steps.

---

`625-625`: _⚠️ Potential issue_

**Fix incorrect action type constant in error message**

The error message is using models.DeployDataFlowComponent when it should be using models.EditDataFlowComponent.


```diff
-							SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+							SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "Failed to roll back DFC configuration after detecting Benthos errors. Please check your configuration for syntax issues and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

</blockquote></details>

</blockquote></details>

<details>
<summary>🧹 Nitpick comments (2)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (2)</summary><blockquote>

`556-559`: **Document the return values in GoDoc comment**

The function signature has been updated to return both an error code string and an error, but the GoDoc comments don't explain these return values or when/how they should be used.


Add a clearer explanation of the return values in the function documentation:

```diff
// waitForComponentToBeActive polls live FSM state until the new component
// becomes active or the timeout hits (→ delete unless ignoreHealthCheck).
-// the function returns the error code and and the error message via an error object
-// the error code is a string that is sent to the frontend to allow it to determine if the action can be retried or not
-// the error message is sent to the frontend to allow the user to see the error message
+// 
+// Returns:
+//   - string: Error code that tells the frontend whether this error is retryable
+//     (empty string on success, models.ErrRetryRollbackTimeout on timeout,
+//     models.ErrConfigFileInvalid on configuration errors)
+//   - error: Contains a user-friendly error message for display (nil on success)
```

---

`525-528`: **Document how error codes impact frontend behavior**

The comment explains the purpose of error codes, but doesn't provide details on specific codes or how the frontend interprets them.


Expand the comment to explain specific error code prefixes and their meaning:

```diff
 // waitForComponentToBeActive gives us the error code, which we then forward to the frontend using the SendActionReplyV2 function
-// the error code is a string that can be used to identify the error reason
-// the main reason for this is to allow the frontend to determine weather it should offer a retry option or not
+// the error code is a string that can be used to identify the error reason
+// the main reason for this is to allow the frontend to determine whether it should offer a retry option or not
+// Error codes with prefix ERR_RETRY_ will show retry option in the frontend
+// Error codes without the retry prefix (like ERR_CONFIG_FILE_INVALID) indicate non-retryable errors
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 6a6d68fdcb941e623471d319477eb59e464a2c99 and ddc9c50a927bf5da97956969414e76c52cdbc894.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (1)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (7)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (2)</summary>

* `SendActionReplyV2` (296-310)
* `SendActionReply` (185-187)

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (5)</summary>

* `ActionFinishedWithFailure` (347-347)
* `EditDataFlowComponent` (162-162)
* `ErrRetryRollbackTimeout` (597-597)
* `ActionExecuting` (343-343)
* `ErrConfigFileInvalid` (599-599)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/action_helper.go (3)</summary>

* `Label` (97-99)
* `RemainingPrefixSec` (87-89)
* `SendLimitedLogs` (46-84)

</details>
<details>
<summary>umh-core/pkg/service/benthos/benthos.go (2)</summary>

* `ServiceInfo` (114-121)
* `BenthosStatus` (123-151)

</details>
<details>
<summary>umh-core/pkg/service/dataflowcomponent/dataflowcomponent.go (1)</summary>

* `ServiceInfo` (76-85)

</details>
<details>
<summary>umh-core/pkg/fsm/benthos/models.go (1)</summary>

* `BenthosObservedState` (113-119)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary>

* `CheckBenthosLogLinesForConfigErrors` (36-50)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (3)
* GitHub Check: Integration Tests (1)
* GitHub Check: Integration Tests (2)
* GitHub Check: Unit Tests
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

<details>
<summary>🔇 Additional comments (3)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (2)</summary>

`596-596`: **LGTM: Appropriate use of error code for retryable timeout scenario**

The use of `models.ErrRetryRollbackTimeout` error code is correct here, enabling the frontend to properly handle this retryable error scenario.

---

`644-653`: <details>
<summary>✅ Verification successful</summary>

**Use consistent error code handling with models package**

The code uses `models.ErrConfigFileInvalid` which is good, but there could be improved comments about the exact intended purpose of this error code in the context of Benthos configuration errors.


Let's verify the existence and documentation of these error codes in the models package:

---

🏁 Script executed:

```shell
#!/bin/bash
# Check if the error codes are properly defined in the models package
grep -r "Err.*Invalid\|Err.*Timeout" --include="*.go" umh-core/pkg/models/
```

Length of output: 521

---



</details>

**No action required: ErrConfigFileInvalid is properly defined and documented**  

The `ErrConfigFileInvalid` constant is declared in `umh-core/pkg/models/action_models.go` with the comment:
```go
// ErrConfigFileInvalid is sent when the deployment of a dfc fails because the config file is invalid.
ErrConfigFileInvalid = "ERR_CONFIG_FILE_INVALID"
```
This aligns with its use for Benthos configuration errors. No changes are needed.

</details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (1)</summary>

`554-554`: **LGTM: Appropriate use of error code for retryable timeout scenario**

The use of `models.ErrRetryRollbackTimeout` error code is correct here, enabling the frontend to properly handle this retryable error scenario.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T16:24:10Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 1**

<details>
<summary>♻️ Duplicate comments (1)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (1)</summary><blockquote>

`620-633`: **Inconsistent error messages between rollback success and failure.**

The error messages for successful and failed rollbacks should be more distinct and informative.

```diff
 if CheckBenthosLogLinesForConfigErrors(logs) {
     SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)

     _, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
     if err != nil {
         a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
-        return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+        return models.ErrConfigFileInvalid, fmt.Errorf("failed to roll back dataflow component '%s' due to config error: %v. Please check your configuration and try again or remove the component manually", a.name, err)
     }
-    return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+    return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was successfully rolled back to previous configuration due to Benthos config error. Please fix your configuration before trying again", a.name)
```

</blockquote></details>

</blockquote></details>

<details>
<summary>🧹 Nitpick comments (2)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (2)</summary><blockquote>

`485-485`: **Fix typo in comment: "weather" should be "whether".**

The comment contains a typographical error - "weather" should be "whether".

```diff
- // the main reason for this is to allow the frontend to determine weather it should offer a retry option or not
+ // the main reason for this is to allow the frontend to determine whether it should offer a retry option or not
```

---

`526-528`: **Improve function comment to follow Go documentation standards.**

The comment should start with the function name and be written as a complete sentence.

```diff
-// the function returns the error code and and the error message via an error object
-// the error code is a string that is sent to the frontend to allow it to determine if the action can be retried or not
-// the error message is sent to the frontend to allow the user to see the error message
+// waitForComponentToBeActive polls the system snapshot until the component is active or a timeout occurs.
+// It returns an error code string and an error. The error code allows the frontend to determine 
+// if the action can be retried, while the error message provides details about the failure.
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between ddc9c50a927bf5da97956969414e76c52cdbc894 and eebb57f5c51302e39f1318c0a9bdb85c425e6364.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `umh-core/pkg/communicator/actions/actions.go` (5 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🚧 Files skipped from review as they are similar to previous changes (1)</summary>

* umh-core/pkg/communicator/actions/actions.go

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (1)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (6)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/actions.go (2)</summary>

* `SendActionReplyV2` (302-318)
* `SendActionReply` (185-190)

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (5)</summary>

* `ActionFinishedWithFailure` (347-347)
* `ErrRetryRollbackTimeout` (597-597)
* `EditDataFlowComponent` (162-162)
* `ActionExecuting` (343-343)
* `ErrConfigFileInvalid` (599-599)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/action_helper.go (3)</summary>

* `Label` (97-99)
* `RemainingPrefixSec` (87-89)
* `SendLimitedLogs` (46-84)

</details>
<details>
<summary>umh-core/pkg/service/benthos/benthos.go (2)</summary>

* `ServiceInfo` (114-121)
* `BenthosStatus` (123-151)

</details>
<details>
<summary>umh-core/pkg/service/dataflowcomponent/dataflowcomponent.go (1)</summary>

* `ServiceInfo` (76-85)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary>

* `CheckBenthosLogLinesForConfigErrors` (36-50)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (1)
* GitHub Check: Integration Tests (3)
* GitHub Check: Integration Tests (2)
* GitHub Check: Unit Tests
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

<details>
<summary>🔇 Additional comments (4)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (4)</summary>

`599-603`: **LGTM: Good improvement by early-returning on active or idle state.**

Adding support for the "idle" state as a valid completion state is a good enhancement that prevents unnecessary waiting and improves UX.

---

`606-619`: **LGTM: Enhanced status reporting with detailed reasons and logs.**

The changes improve user experience by providing more detailed status information:
1. Using StatusReason to explain component state
2. Sending Benthos logs to help with troubleshooting

This will help users understand what's happening during deployment.

---

`410-410`: **LGTM: Using structured error response with error code.**

Good improvement by using SendActionReplyV2 with a defined error code. This enables the frontend to make intelligent decisions about offering retry options.

---

`480-486`: **LGTM: Enhanced error handling with return code.**

The new approach of returning both an error code and an error message from waitForComponentToBeActive provides more context to the frontend, enabling better UX decisions about retry options.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T16:27:52Z
user: login: coderabbitai[bot]
body: **Actionable comments posted: 0**

<details>
<summary>🧹 Nitpick comments (5)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (2)</summary><blockquote>

`641-654`: **Good implementation of early configuration error detection.**

The integration of `CheckBenthosLogLinesForConfigErrors` provides early detection of fatal configuration errors, preventing unnecessary wait time when configuration is invalid. The automatic rollback is a valuable user experience improvement.

However, the error messages could better follow the error message guidelines:

```diff
-						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' has invalid configuration but could not be removed: %v. Please check your logs and consider removing the component manually", a.name, err)
+						return models.ErrConfigFileInvalid, fmt.Errorf("failed to remove dataflow component '%s': %v. Please check the logs for configuration errors and remove the component manually", a.name, err)

-						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed due to configuration errors. Please check the component logs, fix the configuration issues, and try deploying again", a.name)
+						return models.ErrConfigFileInvalid, fmt.Errorf("removed dataflow component '%s' due to Benthos configuration errors. Please check the logs, fix the configuration issues, and try deploying again", a.name)
```

---

`595-597`: **Consistent error code usage for rollback timeout.**

Good usage of the `models.ErrRetryRollbackTimeout` constant instead of hardcoded strings provides consistency, but the error messages could be improved:

```diff
-				return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' failed to activate within timeout but could not be removed: %v. Please check system load and consider removing the component manually", a.name, err)
+				return models.ErrRetryRollbackTimeout, fmt.Errorf("timeout: dataflow component '%s' failed to activate and could not be removed: %v. Please check system load and remove the component manually", a.name, err)

-			return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' was removed because it did not become active within the timeout period. Please check system load or component configuration and try again", a.name)
+			return models.ErrRetryRollbackTimeout, fmt.Errorf("timeout: dataflow component '%s' was removed. Please check system resources and try again, or verify your configuration", a.name)
```

</blockquote></details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (3)</summary><blockquote>

`620-633`: **Effective early configuration error detection and rollback.**

The implementation of `CheckBenthosLogLinesForConfigErrors` provides valuable early detection of configuration errors, preventing unnecessary waiting when config is invalid. The automatic rollback logic enhances user experience.

The error messages follow the guidelines reasonably well but could be improved slightly:

```diff
-								return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' has invalid configuration but could not be rolled back: %v. Please check your logs and consider manually restoring the previous configuration", a.name, err)
+								return models.ErrConfigFileInvalid, fmt.Errorf("configuration error: dataflow component '%s' could not be rolled back: %v. Please check logs and manually restore the previous configuration", a.name, err)

-							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back to its previous configuration due to configuration errors. Please check the component logs, fix the configuration issues, and try editing again", a.name)
+							return models.ErrConfigFileInvalid, fmt.Errorf("configuration error: dataflow component '%s' was rolled back to its previous configuration. Please check logs, fix the issues, and try editing again", a.name)
```

---

`552-554`: **Use of error code constants for timeout errors.**

Good job using `models.ErrRetryRollbackTimeout` constant instead of hardcoded strings. The error messages are informative but could be slightly more concise:

```diff
-				return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' failed to activate within timeout and could not be rolled back: %v. Please check system load and consider manually restoring the previous configuration", a.name, err)
+				return models.ErrRetryRollbackTimeout, fmt.Errorf("timeout: dataflow component '%s' failed to activate and rollback failed: %v. Please check system load and manually restore the previous configuration", a.name, err)

-			return models.ErrRetryRollbackTimeout, fmt.Errorf("dataflow component '%s' was rolled back to its previous configuration because it did not become active within the timeout period. Please check system load or component configuration and try again", a.name)
+			return models.ErrRetryRollbackTimeout, fmt.Errorf("timeout: dataflow component '%s' was rolled back to its previous configuration. Please check system resources or component configuration and try again", a.name)
```

---

`624-626`: **Use SendActionReplyV2 for consistency.**

For consistency with other error handling in this file, consider using SendActionReplyV2 here:

```diff
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration error detected. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+							SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration error detected. Rolling back...", "", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between eebb57f5c51302e39f1318c0a9bdb85c425e6364 and c9994537411f304dff1d46ba3df6dba1071c24fd.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go`
- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>

</details><details>
<summary>🧬 Code Graph Analysis (1)</summary>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (7)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/action_helper.go (3)</summary>

* `Label` (97-99)
* `RemainingPrefixSec` (87-89)
* `SendLimitedLogs` (46-84)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/actions.go (2)</summary>

* `SendActionReplyV2` (302-318)
* `SendActionReply` (185-190)

</details>
<details>
<summary>umh-core/pkg/models/action_models.go (5)</summary>

* `ActionFinishedWithFailure` (347-347)
* `DeployDataFlowComponent` (160-160)
* `ErrRetryRollbackTimeout` (597-597)
* `ActionExecuting` (343-343)
* `ErrConfigFileInvalid` (599-599)

</details>
<details>
<summary>umh-core/pkg/service/benthos/benthos.go (2)</summary>

* `ServiceInfo` (114-121)
* `BenthosStatus` (123-151)

</details>
<details>
<summary>umh-core/pkg/service/dataflowcomponent/dataflowcomponent.go (1)</summary>

* `ServiceInfo` (76-85)

</details>
<details>
<summary>umh-core/pkg/communicator/actions/benthos-log-checker.go (1)</summary>

* `CheckBenthosLogLinesForConfigErrors` (36-50)

</details>
<details>
<summary>umh-core/pkg/config/dataflowcomponentserviceconfig/utils.go (1)</summary>

* `GenerateUUIDFromName` (60-62)

</details>

</blockquote></details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (2)
* GitHub Check: Integration Tests (3)
* GitHub Check: Integration Tests (1)
* GitHub Check: Unit Tests
* GitHub Check: Build and Push (amd64)
* GitHub Check: Build and Push (arm64)

</details>

<details>
<summary>🔇 Additional comments (11)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go (5)</summary>

`522-528`: **Good use of structured error handling with ActionReplyV2.**

The introduction of error codes to the response is a well-implemented improvement that enables the frontend to make intelligent decisions about retry options. The comment explaining the purpose on lines 525-527 is helpful for future maintainers.

---

`556-560`: **Good method documentation update.**

The updated method signature and documentation clearly explain the purpose of the returned error code string, which maintains code clarity despite the increased complexity of the return values.

---

`622-626`: **Improved early success detection.**

The immediate return when component is "active" or "idle" improves efficiency by avoiding unnecessary checks and waiting. The updated success message is also more informative.

---

`627-640`: **Better status reporting and log handling.**

This segment effectively extracts the current state reason and properly handles Benthos logs, improving user feedback during the deployment process.

---

`535-535`: **Success message now provides better clarity.**

The updated success message now explicitly states that the component was both deployed and activated, which is clearer than the previous version.

</details>
<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (6)</summary>

`410-411`: **Use of correct error code constant for processor parsing failure.**

Good job using the `models.ErrRetryRollbackTimeout` constant instead of a hardcoded string, which improves maintainability and consistency.

---

`480-487`: **Well-structured error handling with SendActionReplyV2.**

The improved error handling mechanism and the clear comment explaining the purpose of the error code (allowing the frontend to determine retry options) is excellent. This is a good implementation of the structured error handling approach.

---

`525-528`: **Clear method documentation.**

The function documentation clearly explains the purpose of the error code string and how it's used by the frontend, which helps future maintainers understand the design intent.

---

`599-604`: **Improved early success detection.**

The immediate return when component state is "active" or "idle" improves efficiency by avoiding unnecessary checks and waiting. The updated success message is also more informative.

---

`606-619`: **Better status reporting and log handling.**

This segment effectively extracts the current state reason and properly handles Benthos logs, improving user feedback during the editing process.

---

`493-493`: **Improved success message clarity.**

The updated success message now explicitly states that the component was both updated and activated, which provides better clarity for users.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: CONTRIBUTOR
submitted_at: 2025-05-20T16:30:38Z
user: login: JeremyTheocharis
state: CHANGES_REQUESTED
author_association: MEMBER
submitted_at: 2025-05-21T08:43:18Z
user: login: JeremyTheocharis
state: APPROVED
author_association: MEMBER
submitted_at: 2025-05-21T12:46:42Z

Review comments:
diff_hunk: @@ -0,0 +1,37 @@
+// Copyright 2025 UMH Systems GmbH
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package actions
+
+import (
+	"strings"
+
+	"github.com/united-manufacturing-hub/united-manufacturing-hub/umh-core/pkg/service/s6"
+)
+
+var ErrBenthosLogLines = []string{
+	"unable to infer",
+	"Config lint error",
+}
+
+func CheckBenthosLogLinesForConfigErrors(logs []s6.LogEntry) bool {
+	for _, log := range logs {
+		for _, errLine := range ErrBenthosLogLines {
+			if strings.Contains(log.Content, errLine) && strings.Contains(log.Content, "error") {
+				return true
+			}
+		}
+	}
+	return false
+}
path: umh-core/pkg/communicator/actions/benthos-log-checker.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Make the error scan case-insensitive & document the helper**

1.  `CheckBenthosLogLinesForConfigErrors` is exported yet lacks a leading doc-comment.  
2.  Log lines may vary in capitalisation (“ERROR”, “Error”, …).  Running
    `strings.Contains` on the unchanged text risks missing matches.

```diff
+// CheckBenthosLogLinesForConfigErrors returns true if at least one log entry
+// contains any of the known Benthos config-error substrings.  
+// The comparison is case-insensitive to avoid missing “Error”, “ERROR”, etc.
 func CheckBenthosLogLinesForConfigErrors(logs []s6.LogEntry) bool {
-    for _, log := range logs {
-        for _, errLine := range ErrBenthosLogLines {
-            if strings.Contains(log.Content, errLine) && strings.Contains(log.Content, "error") {
-                return true
-            }
-        }
-    }
+    for _, log := range logs {
+        lc := strings.ToLower(log.Content)
+        for _, errLine := range ErrBenthosLogLines {
+            if strings.Contains(lc, strings.ToLower(errLine)) &&
+                strings.Contains(lc, "error") {
+                return true
+            }
+        }
+    }
     return false
 }
```

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/benthos-log-checker.go around lines 28 to
37, add a proper doc-comment above the exported function
CheckBenthosLogLinesForConfigErrors explaining its purpose. Modify the function
to perform case-insensitive checks by converting both the log content and error
line strings to a common case (e.g., lowercase) before using strings.Contains,
ensuring it detects errors regardless of capitalization.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-19T12:27:32Z
author_association: CONTRIBUTOR
diff_hunk: @@ -615,20 +615,35 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// check if the logs contain any of the error lines and if so, cancel the action with rolling back
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+						defer cancel()
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not removed. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
 						}
+						SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC removed", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
 					}
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Inconsistent use of error-codes after auto-removal**

When a config error is detected you:

1. Remove the component,
2. Send `ActionFinishedWithFailure` twice—once on remove error, once on
   success—both with the same `ERR_CONFIG_ERROR` code.

The double emission can confuse the front-end and breaks the
“single-terminal-event” expectation.  Emit exactly one terminal event:

```pseudo
if removeErr != nil {
    sendFinishedFailure("ERR_CONFIG_ERROR", "...not removed…")
} else {
    sendFinishedFailure("ERR_CONFIG_ERROR", "...removed…")
}
return models.ErrConfigFileInvalid, wrappedErr
```

…and exit early without the second call.

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go around lines
617 to 645, the code sends two ActionFinishedWithFailure events with the same
error code ERR_CONFIG_ERROR when a config error is detected and the component is
removed. To fix this, modify the logic to send exactly one terminal event: if
the removal returns an error, send the failure event with a message indicating
the component was not removed; otherwise, send the failure event indicating
successful removal. After sending this single event, return immediately without
sending a second event.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-19T12:27:32Z
author_association: CONTRIBUTOR
diff_hunk: @@ -0,0 +1,46 @@
+// Copyright 2025 UMH Systems GmbH
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package actions
+
+import (
+	"strings"
+
+	"github.com/united-manufacturing-hub/united-manufacturing-hub/umh-core/pkg/service/s6"
+)
+
+var ErrBenthosLogLines = []string{
+	"unable to infer",
+	"Config lint error",
+}
+
+// CheckBenthosLogLinesForConfigErrors examines a slice of S6 log entries for
+// Benthos configuration errors. It performs case-insensitive checks for known
+// error patterns combined with the word "error". Returns true if any errors
+// are detected, false otherwise.
+func CheckBenthosLogLinesForConfigErrors(logs []s6.LogEntry) bool {
path: umh-core/pkg/communicator/actions/benthos-log-checker.go
user: login: JeremyTheocharis
body: Can you explain here why this function is useful? 

--> When benthos starts up, it can land up in a CrashLoop because of a configuration error. THese manifest through ErrBenthosLogLines. So instead of forcing the user to wait for 20 more seconds, we use this function to immediately abort because if one of these issues appears it will require a configuration change
created_at: 2025-05-20T08:19:35Z
author_association: MEMBER
diff_hunk: @@ -519,10 +519,10 @@ func (a *DeployDataflowComponentAction) Execute() (interface{}, map[string]inter
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("deploy", a.name)+"configuration updated; but ignoring the health check", a.outboundChannel, models.EditDataFlowComponent)
 		} else {
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("deploy", a.name)+"configuration updated; waiting to become active", a.outboundChannel, models.DeployDataFlowComponent)
-			err = a.waitForComponentToBeActive()
+			errCode, err := a.waitForComponentToBeActive()
 			if err != nil {
 				errorMsg := Label("deploy", a.name) + fmt.Sprintf("failed to wait for dataflow component to be active: %v", err)
-				SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, a.outboundChannel, models.DeployDataFlowComponent)
+				SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, errCode, nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: JeremyTheocharis
body: add a note here why we can and should use V2 here
created_at: 2025-05-20T08:20:38Z
author_association: MEMBER
diff_hunk: @@ -551,7 +551,7 @@ func (a *DeployDataflowComponentAction) GetParsedPayload() models.CDFCPayload {
 
 // waitForComponentToBeActive polls live FSM state until the new component
 // becomes active or the timeout hits (→ delete unless ignoreHealthCheck).
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: JeremyTheocharis
body: can you explain what string and error in the return parametrers mean? I am a little bit confused as both look like errors
created_at: 2025-05-20T08:21:33Z
author_association: MEMBER
diff_hunk: @@ -615,20 +615,36 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// check if the logs contain any of the error lines and if so, cancel the action with rolling back
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: JeremyTheocharis
body: explain here again why this is relevant (see my comments at CheckBenthosLogLinesForConfigErrors)
created_at: 2025-05-20T08:22:18Z
author_association: MEMBER
diff_hunk: @@ -615,20 +615,36 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// check if the logs contain any of the error lines and if so, cancel the action with rolling back
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: JeremyTheocharis
body: can't we use the overall context here? in general, we should have one context, and re-use that. context.Background should be used only at the very start of something (e.g., the user starts the overall action) and then during that action run re-used
created_at: 2025-05-20T08:23:14Z
author_association: MEMBER
diff_hunk: @@ -615,20 +615,36 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// check if the logs contain any of the error lines and if so, cancel the action with rolling back
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+						defer cancel()
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not removed. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: JeremyTheocharis
body: what does ERR_CONFIG_ERROR mean? what does it do? --> needs to be documented somewhere. either in SendActionReplyV2 or somewhere else
created_at: 2025-05-20T08:23:57Z
author_association: MEMBER
diff_hunk: @@ -407,7 +407,7 @@ func (a *EditDataflowComponentAction) Execute() (interface{}, map[string]interfa
 				err := yaml.Unmarshal([]byte(processor.Data), &procConfig)
 				if err != nil {
 					errMsg := Label("edit", a.name) + fmt.Sprintf("failed to parse pipeline processor %s: %s", processorName, err.Error())
-					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, a.outboundChannel, models.EditDataFlowComponent)
+					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, "ERR_RETRY_DFC_TIMEOUT", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: JeremyTheocharis
body: see comments above
created_at: 2025-05-20T08:24:09Z
author_association: MEMBER
diff_hunk: @@ -477,10 +477,10 @@ func (a *EditDataflowComponentAction) Execute() (interface{}, map[string]interfa
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration updated; but ignoring the health check", a.outboundChannel, models.EditDataFlowComponent)
 		} else {
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration updated; waiting to become active", a.outboundChannel, models.EditDataFlowComponent)
-			err = a.waitForComponentToBeActive()
+			errCode, err := a.waitForComponentToBeActive()
 			if err != nil {
 				errorMsg := Label("edit", a.name) + fmt.Sprintf("failed to wait for dataflow component to be active: %v", err)
-				SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, a.outboundChannel, models.EditDataFlowComponent)
+				SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, errCode, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: JeremyTheocharis
body: see comments above
created_at: 2025-05-20T08:24:21Z
author_association: MEMBER
diff_hunk: @@ -519,7 +519,7 @@ func (a *EditDataflowComponentAction) GetComponentUUID() uuid.UUID {
 // Concurrency note: The method never writes to `systemSnapshot`; the FSM runtime
 // is the single writer.  We only take read‑locks while **copying** the full
 // snapshot to avoid holding the lock during YAML comparisons.
-func (a *EditDataflowComponentAction) waitForComponentToBeActive() error {
+func (a *EditDataflowComponentAction) waitForComponentToBeActive() (string, error) {
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: JeremyTheocharis
body: see comments above.

and by the way: doesn't it make sense to reuse this function in the first place? it is same for deploy and editing right?
created_at: 2025-05-20T08:24:51Z
author_association: MEMBER
diff_hunk: @@ -531,3 +531,63 @@ type GetLogsResponse struct {
 type GetDataflowcomponentMetricsRequest struct {
 	UUID string `json:"uuid" binding:"required"`
 }
+
+type ActionReplyResponseSchemaJson struct {
+	// Additional contextual data for the action, allows arbitrary key-value pairs.
+	ActionContext ActionReplyResponseSchemaJsonActionContext `json:"actionContext,omitempty" yaml:"actionContext,omitempty" mapstructure:"actionContext,omitempty"`
+
+	// Legacy action reply payload, can be a string or an object for backward
+	// compatibility.
+	ActionReplyPayload interface{} `json:"actionReplyPayload" yaml:"actionReplyPayload" mapstructure:"actionReplyPayload"`
+
+	// Structured response payload for any action reply.
+	ActionReplyPayloadV2 *ActionReplyResponseSchemaJsonActionReplyPayloadV2 `json:"actionReplyPayloadV2,omitempty" yaml:"actionReplyPayloadV2,omitempty" mapstructure:"actionReplyPayloadV2,omitempty"`
+
+	// State of the action reply.
+	ActionReplyState ActionReplyResponseSchemaJsonActionReplyState `json:"actionReplyState" yaml:"actionReplyState" mapstructure:"actionReplyState"`
+
+	// Unique identifier for the action.
+	ActionUUID string `json:"actionUUID" yaml:"actionUUID" mapstructure:"actionUUID"`
+}
+
+// Additional contextual data for the action, allows arbitrary key-value pairs.
+type ActionReplyResponseSchemaJsonActionContext map[string]interface{}
+
+type ActionReplyResponseSchemaJsonActionReplyPayloadV2 struct {
+	// Machine-readable error code (e.g., 'ERR_CONFIG_CHANGED').
+	ErrorCode *string `json:"errorCode,omitempty" yaml:"errorCode,omitempty" mapstructure:"errorCode,omitempty"`
+
+	// Human-readable error message.
+	Message string `json:"message" yaml:"message" mapstructure:"message"`
+
+	// Additional payload for the action reply.
+	Payload ActionReplyResponseSchemaJsonActionReplyPayloadV2Payload `json:"payload,omitempty" yaml:"payload,omitempty" mapstructure:"payload,omitempty"`
+}
+
+type ActionReplyResponseSchemaJsonActionReplyState string
+
+const ActionReplyResponseSchemaJsonActionReplyStateActionConfirmed ActionReplyResponseSchemaJsonActionReplyState = "action-confirmed"
+const ActionReplyResponseSchemaJsonActionReplyStateActionExecuting ActionReplyResponseSchemaJsonActionReplyState = "action-executing"
+const ActionReplyResponseSchemaJsonActionReplyStateActionFailure ActionReplyResponseSchemaJsonActionReplyState = "action-failure"
+const ActionReplyResponseSchemaJsonActionReplyStateActionSuccess ActionReplyResponseSchemaJsonActionReplyState = "action-success"
+
+// var enumValues_ActionReplyResponseSchemaJsonActionReplyState = []interface{}{
+// 	"action-confirmed",
+// 	"action-executing",
+// 	"action-success",
+// 	"action-failure",
+// }
+
+type ActionReplyResponseSchemaJsonActionReplyPayloadV2Payload map[string]interface{}
+
+const (
+	ErrRetryParseFailed     = "ERR_RETRY_ACTION_PARSE_FAILED"
path: umh-core/pkg/models/action_models.go
user: login: JeremyTheocharis
body: can you explain them and what they will do in the frontend?
created_at: 2025-05-20T08:25:23Z
author_association: MEMBER
diff_hunk: @@ -615,20 +615,40 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+					// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+					// abort the startup process rather than waiting for the full timeout period,
+					// as these errors require configuration changes to resolve.
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+						defer cancel()
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not removed. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Document the meaning and purpose of error codes.**

As requested in the review comment, the error code `ERR_CONFIG_ERROR` should be documented. This should be added to the models package where other error codes are defined.


Add this constant to the error codes section in `umh-core/pkg/models/action_models.go`:

```go
// Error codes used in action replies
const (
    ErrRetryRollbackTimeout = "ERR_RETRY_ROLLBACK_TIMEOUT"
    ErrConfigFileInvalid    = "ERR_CONFIG_FILE_INVALID"
    ErrConfigError          = "ERR_CONFIG_ERROR"  // Error for Benthos configuration parsing issues requiring manual intervention
)
```

And update references to use the constant:

```diff
- SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not removed. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+ SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not removed. Please check your configuration and consider removing the component manually.", models.ErrConfigError, nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
```

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go at line 645,
the error code ERR_CONFIG_ERROR is used without a documented constant. To fix
this, define ErrConfigError as a constant string with a clear comment in
umh-core/pkg/models/action_models.go alongside other error codes. Then replace
the string literal "ERR_CONFIG_ERROR" in the SendActionReplyV2 call with the new
ErrConfigError constant to ensure consistent usage and documentation.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T14:47:08Z
author_association: CONTRIBUTOR
diff_hunk: @@ -590,27 +590,45 @@
 							continue
 						}
 
-						if instance.CurrentState != "active" && instance.CurrentState != "idle" {
-							// currentStateReason contains more information on why the DFC is in its current state
-							currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-							stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
-								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							// send the benthos logs to the user
-							logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-							// only send the logs that have not been sent yet
-							if len(logs) > len(lastLogs) {
-								lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
-							}
-
-							continue
-						} else {
+						if instance.CurrentState == "active" || instance.CurrentState == "idle" {
 							stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
 								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							return nil
+							return "", nil
 						}
+
+						// currentStateReason contains more information on why the DFC is in its current state
+						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
+							stateMessage, a.outboundChannel, models.EditDataFlowComponent)
+						// send the benthos logs to the user
+						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+						// only send the logs that have not been sent yet
+						if len(logs) > len(lastLogs) {
+
+							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
+						}
+						// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+						// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+						// abort the startup process rather than waiting for the full timeout period,
+						// as these errors require configuration changes to resolve.
+						if CheckBenthosLogLinesForConfigErrors(logs) {
+							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+							ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+							defer cancel()
+							_, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
+							if err != nil {
+								SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Improve error message clarity and fix incorrect action type.**

The error message doesn't follow the error message guidelines and uses the wrong action type constant.


```diff
- SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+ SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "Failed to roll back DFC configuration after detecting Benthos errors. Please check your configuration for syntax issues and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

This revised message provides better context about what happened, clearly describes the error, and gives specific next steps for the user.


<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

```suggestion
								SendActionReplyV2(
									a.instanceUUID,
									a.userEmail,
									a.actionUUID,
									models.ActionFinishedWithFailure,
									"Failed to roll back DFC configuration after detecting Benthos errors. Please check your configuration for syntax issues and consider removing the component manually.",
									"ERR_CONFIG_ERROR",
									nil,
									a.outboundChannel,
									models.EditDataFlowComponent,
									nil,
								)
```

</details>

<!-- suggestion_end -->

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/edit-dataflowcomponent.go at line 624, the
error message in the SendActionReplyV2 call is unclear and the action type
constant used is incorrect. Update the error message to clearly describe the
failure and provide specific next steps for the user. Also, replace the action
type constant with the correct one that matches the error context according to
the guidelines.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T14:47:08Z
author_association: CONTRIBUTOR
diff_hunk: @@ -590,27 +590,45 @@
 							continue
 						}
 
-						if instance.CurrentState != "active" && instance.CurrentState != "idle" {
-							// currentStateReason contains more information on why the DFC is in its current state
-							currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-							stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
-								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							// send the benthos logs to the user
-							logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-							// only send the logs that have not been sent yet
-							if len(logs) > len(lastLogs) {
-								lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
-							}
-
-							continue
-						} else {
+						if instance.CurrentState == "active" || instance.CurrentState == "idle" {
 							stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
 								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							return nil
+							return "", nil
 						}
+
+						// currentStateReason contains more information on why the DFC is in its current state
+						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
+							stateMessage, a.outboundChannel, models.EditDataFlowComponent)
+						// send the benthos logs to the user
+						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+						// only send the logs that have not been sent yet
+						if len(logs) > len(lastLogs) {
+
+							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
+						}
+						// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+						// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+						// abort the startup process rather than waiting for the full timeout period,
+						// as these errors require configuration changes to resolve.
+						if CheckBenthosLogLinesForConfigErrors(logs) {
+							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+							ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+							defer cancel()
+							_, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
+							if err != nil {
+								SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+								a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
+							}
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+						}
+
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Improved flow control for early success and error detection.**

The refactored code immediately returns when the component state is `"active"` or `"idle"`, improving performance by avoiding unnecessary checks. It also adds proactive detection of Benthos configuration errors to trigger an immediate rollback, rather than waiting for a timeout.

However, there's a difference in error handling between this code and the equivalent in `deploy-dataflowcomponent.go`:



1. In `edit-dataflowcomponent.go`, the error message for rollback failure is rather verbose but confusing: "DFC not rolled back. Please check your configuration and consider, removing the component manually.." The extra comma and double period make it less professional.

2. The action type in the error message is inconsistent - it's using `models.DeployDataFlowComponent` when it should be `models.EditDataFlowComponent`:

```diff
- SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+ SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

This error message should also be improved to follow the error message guidelines provided - including context, description, and clear next steps.


<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

```suggestion
						if CheckBenthosLogLinesForConfigErrors(logs) {
							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
							ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
							defer cancel()
							_, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
							if err != nil {
-								SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider, removing the component manually..", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.DeployDataFlowComponent, nil)
+								SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, "DFC not rolled back. Please check your configuration and consider removing the component manually.", "ERR_CONFIG_ERROR", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
								a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
							}
							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
						}
```

</details>

<!-- suggestion_end -->

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/edit-dataflowcomponent.go around lines 593
to 629, improve the rollback failure error handling by correcting the error
message to remove the extra comma and double period, making it more professional
and clear. Also, change the action type in the SendActionReplyV2 call from
models.DeployDataFlowComponent to models.EditDataFlowComponent to maintain
consistency. Update the error message to include clear context, a concise
description of the failure, and actionable next steps for the user following the
error message guidelines.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T14:47:08Z
author_association: CONTRIBUTOR
diff_hunk: @@ -519,7 +519,7 @@ func (a *EditDataflowComponentAction) GetComponentUUID() uuid.UUID {
 // Concurrency note: The method never writes to `systemSnapshot`; the FSM runtime
 // is the single writer.  We only take read‑locks while **copying** the full
 // snapshot to avoid holding the lock during YAML comparisons.
-func (a *EditDataflowComponentAction) waitForComponentToBeActive() error {
+func (a *EditDataflowComponentAction) waitForComponentToBeActive() (string, error) {
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: FreiPaul
body: I also thought about that but there are some key differences:

- The deploy version needs to delete the component on failure
- The edit version needs to roll back to the previous configuration on failure
- The edit version additionally compares observed vs desired configs

I once tried to build a more abstract shared function but in the end it made things even more complicated in my opinion. I would suggest, considering this refactor as a separate PR since I currently this PR and the pause DFC PR open for this part of the code and the refactor would now cost some time and cause merge conficts
created_at: 2025-05-20T14:51:11Z
author_association: CONTRIBUTOR
diff_hunk: @@ -615,20 +618,39 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+					// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+					// abort the startup process rather than waiting for the full timeout period,
+					// as these errors require configuration changes to resolve.
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+						defer cancel()
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' not removed. Please check your configuration and consider removing the component manually", a.name)
 						}
+
+						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
 					}
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Improve error message structure and handling**

The error handling for the rollback operation could be improved to follow the error message guidelines more consistently and avoid duplication.

```diff
 							err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
 							if err != nil {
 								a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
-								return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' not removed. Please check your configuration and consider removing the component manually", a.name)
+								return models.ErrConfigFileInvalid, fmt.Errorf("failed to remove dataflow component '%s' due to config error: %v. Please check your configuration and remove the component manually", a.name, err)
 							}
-
-							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed due to Benthos configuration error. Please fix your configuration before redeploying", a.name)
```

This provides more context and actionable next steps in both cases.

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go around lines
645 to 652, the error handling for the rollback operation duplicates error
messages and lacks consistent structure. Refactor the error returns to unify the
error message format, ensuring that both the logged error and returned error
provide clear, actionable context without repetition. Use a consistent pattern
for formatting error messages that includes the component name and guidance for
manual intervention if needed.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T15:16:39Z
author_association: CONTRIBUTOR
diff_hunk: @@ -407,7 +407,7 @@ func (a *EditDataflowComponentAction) Execute() (interface{}, map[string]interfa
 				err := yaml.Unmarshal([]byte(processor.Data), &procConfig)
 				if err != nil {
 					errMsg := Label("edit", a.name) + fmt.Sprintf("failed to parse pipeline processor %s: %s", processorName, err.Error())
-					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, a.outboundChannel, models.EditDataFlowComponent)
+					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, "ERR_RETRY_DFC_TIMEOUT", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _⚠️ Potential issue_

**Use a constant for error code rather than a hardcoded string**

Hardcoded string literals for error codes can lead to inconsistencies and make it harder to maintain the codebase. Define and use a constant from the models package instead.

```diff
-					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, "ERR_RETRY_DFC_TIMEOUT", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
+					SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errMsg, models.ErrRetryDFCTimeout, nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```

Add this constant to the models package:
```go
// Error codes used in action replies
const (
    // ... existing constants
    ErrRetryDFCTimeout = "ERR_RETRY_DFC_TIMEOUT" // Error when DFC timeout occurs that can be retried
)
```

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/edit-dataflowcomponent.go at line 410,
replace the hardcoded error code string "ERR_RETRY_DFC_TIMEOUT" with a constant
defined in the models package. Define the constant ErrRetryDFCTimeout in the
models package as "ERR_RETRY_DFC_TIMEOUT" and then use models.ErrRetryDFCTimeout
in the SendActionReplyV2 call to improve maintainability and consistency.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T15:16:39Z
author_association: CONTRIBUTOR
diff_hunk: @@ -590,27 +593,45 @@
 							continue
 						}
 
-						if instance.CurrentState != "active" && instance.CurrentState != "idle" {
-							// currentStateReason contains more information on why the DFC is in its current state
-							currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-							stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
-								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							// send the benthos logs to the user
-							logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-							// only send the logs that have not been sent yet
-							if len(logs) > len(lastLogs) {
-								lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
-							}
-
-							continue
-						} else {
+						if instance.CurrentState == "active" || instance.CurrentState == "idle" {
 							stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
 								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							return nil
+							return "", nil
 						}
+
+						// currentStateReason contains more information on why the DFC is in its current state
+						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
+							stateMessage, a.outboundChannel, models.EditDataFlowComponent)
+						// send the benthos logs to the user
+						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+						// only send the logs that have not been sent yet
+						if len(logs) > len(lastLogs) {
+
+							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
+						}
+						// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+						// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+						// abort the startup process rather than waiting for the full timeout period,
+						// as these errors require configuration changes to resolve.
+						if CheckBenthosLogLinesForConfigErrors(logs) {
+							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+							ctx, cancel := context.WithTimeout(context.Background(), constants.ActionTimeout)
+							defer cancel()
+							_, err := a.configManager.AtomicEditDataflowcomponent(ctx, a.newComponentUUID, a.oldConfig)
+							if err != nil {
+								a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
+								return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+							}
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Make error messages consistent between failure cases**

The error messages for successful and failed rollbacks are inconsistent and don't provide enough detail about what happened and what the user should do next.

```diff
 							if err != nil {
 								a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
-								return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+								return models.ErrConfigFileInvalid, fmt.Errorf("failed to roll back dataflow component '%s' due to config error: %v. Please check your configuration and try again or remove the component manually", a.name, err)
 							}
-							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was rolled back because of a config error", a.name)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was successfully rolled back to previous configuration due to Benthos config error. Please fix your configuration before trying again", a.name)
```

This follows the error message guidelines by providing context, a clear description of what happened, and actionable next steps.


<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

```suggestion
    if err != nil {
        a.actionLogger.Errorf("failed to roll back dataflow component %s: %v", a.name, err)
        return models.ErrConfigFileInvalid, fmt.Errorf(
            "failed to roll back dataflow component '%s' due to config error: %v. Please check your configuration and try again or remove the component manually",
            a.name, err,
        )
    }
    return models.ErrConfigFileInvalid, fmt.Errorf(
        "dataflow component '%s' was successfully rolled back to previous configuration due to Benthos config error. Please fix your configuration before trying again",
        a.name,
    )
```

</details>

<!-- suggestion_end -->

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/edit-dataflowcomponent.go around lines 627
to 630, the error messages for rollback failure cases are inconsistent and lack
sufficient detail. Update both error messages to be consistent by including
clear context about the rollback, a description of the failure, and actionable
next steps for the user. Ensure the messages follow error guidelines by
explaining what happened and what the user should do next.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T15:16:40Z
author_association: CONTRIBUTOR
diff_hunk: @@ -615,20 +618,37 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+					// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+					// abort the startup process rather than waiting for the full timeout period,
+					// as these errors require configuration changes to resolve.
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' not removed. Please check your configuration and consider removing the component manually", a.name)
 						}
+
+						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
 					}
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _💡 Verification agent_

<details>
<summary>🧩 Analysis chain</summary>

**Use constants for error codes and document their meaning.**

The error code `models.ErrConfigFileInvalid` should be documented to explain when and why it's used. This will help other developers understand the error handling strategy.

---

🏁 Script executed:

```shell
#!/bin/bash
# Check if the error code is properly documented in the models package
grep -r "ErrConfigFileInvalid" --include="*.go" ./umh-core/pkg/models/
```

Length of output: 162

---



</details>

**Document ErrConfigFileInvalid constant usage**

The `ErrConfigFileInvalid` constant in `umh-core/pkg/models/action_models.go` isn’t currently documented. Please add a GoDoc comment above it explaining when and why this error is returned (for example, during a failed dataflow component deploy due to invalid config).

• File: `umh-core/pkg/models/action_models.go`  
  Add above the constant:
  ```go
  // ErrConfigFileInvalid is returned when a dataflow component configuration
  // fails validation and is removed (e.g., during DeployDataFlowComponent).
  ErrConfigFileInvalid = "ERR_CONFIG_FILE_INVALID"
  ```
  
This will help future maintainers understand the error-handling semantics.

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/models/action_models.go around the declaration of
ErrConfigFileInvalid, add a GoDoc comment above the constant explaining its
purpose and usage. Specifically, document that ErrConfigFileInvalid is returned
when a dataflow component configuration fails validation and is removed, such as
during the DeployDataFlowComponent action. This will clarify the error's meaning
for future maintainers.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T15:27:26Z
author_association: CONTRIBUTOR
diff_hunk: @@ -283,3 +288,109 @@ func ParseActionPayload[T any](actionPayload interface{}) (T, error) {
 
 	return payload, nil
 }
+
+// SendActionReplyV2 sends an action reply with the given state and payload which is a map[string]interface{}
+// SendActionReplyV2 should be used only for ActionFailure messages for backwards compatibility. This will be changed in the future.
+// This function is preferred over SendActionReply as it is more flexible and allows for more complex payloads
+// The return type is a bool and returns false if an error occurred
+func SendActionReplyV2(
+	instanceUUID uuid.UUID,
+	userEmail string,
+	actionUUID uuid.UUID,
+	arstate models.ActionReplyState,
+	message string,
+	errorCode string,
+	payloadV2 map[string]interface{},
+	outboundChannel chan *models.UMHMessage,
+	action models.ActionType,
+	actionContext map[string]interface{},
path: umh-core/pkg/communicator/actions/actions.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**`action` parameter is never used**

`SendActionReplyV2` (and the helper below) accepts an `action models.ActionType` argument but never references it.  
This is likely to be caught by `go vet` / `staticcheck` and will cause CI noise.

Two options:

```diff
-func SendActionReplyV2(
-    …
-    action models.ActionType,
-    …
-) bool {
+func SendActionReplyV2(
+    …
+    // action removed – re-add later if needed
+    …
+) bool {
```

Or, if you plan to use it later, add a `_ = action` line with a TODO explaining future intent.




> Committable suggestion skipped: line range outside the PR's diff.

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/actions.go around lines 297 to 306, the
parameter 'action' of type models.ActionType is declared but never used, which
causes linting and CI issues. To fix this, either remove the 'action' parameter
from the function signature if it is not needed, or if it is intended for future
use, add a line '_ = action' with a TODO comment explaining the planned usage to
suppress the unused variable warning.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T16:16:50Z
author_association: CONTRIBUTOR
diff_hunk: @@ -615,20 +621,37 @@ func (a *DeployDataflowComponentAction) waitForComponentToBeActive() error {
 						stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage,
 							a.outboundChannel, models.DeployDataFlowComponent)
-						return nil
-					} else {
-						// currentStateReason contains more information on why the DFC is in its current state
-						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
-						// send the benthos logs to the user
-						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-						// only send the logs that have not been sent yet
-						if len(logs) > len(lastLogs) {
-							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+						return "", nil
+					}
+
+					// currentStateReason contains more information on why the DFC is in its current state
+					currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+					stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+					SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, stateMessage, a.outboundChannel, models.DeployDataFlowComponent)
+					// send the benthos logs to the user
+					logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+					// only send the logs that have not been sent yet
+					if len(logs) > len(lastLogs) {
+
+						lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.DeployDataFlowComponent, remainingSeconds)
+					}
+					// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+					// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+					// abort the startup process rather than waiting for the full timeout period,
+					// as these errors require configuration changes to resolve.
+					if CheckBenthosLogLinesForConfigErrors(logs) {
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+						err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
+						if err != nil {
+							a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
+							return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' not removed. Please check your configuration and consider removing the component manually", a.name)
 						}
+
+						return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
 					}
path: umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Improve error message consistency and clarity for better user experience**

The error messages for successful and failed component removal don't follow the error message guidelines. They lack clear next steps and consistent formatting.


Replace the current error messages with more informative and actionable ones:

```diff
 if CheckBenthosLogLinesForConfigErrors(logs) {
-	SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Removing the component.", a.outboundChannel, models.DeployDataFlowComponent)
+	SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Benthos configuration error detected. Removing the component automatically.", a.outboundChannel, models.DeployDataFlowComponent)
 	err := a.configManager.AtomicDeleteDataflowcomponent(ctx, dataflowcomponentserviceconfig.GenerateUUIDFromName(a.name))
 	if err != nil {
 		a.actionLogger.Errorf("failed to remove dataflowcomponent %s: %v", a.name, err)
-		return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' not removed. Please check your configuration and consider removing the component manually", a.name)
+		return models.ErrConfigFileInvalid, fmt.Errorf("failed to automatically remove dataflow component '%s' due to Benthos configuration errors: %v. Please check your configuration and remove the component manually", a.name, err)
 	}

-	return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was removed because of a config error", a.name)
+	return models.ErrConfigFileInvalid, fmt.Errorf("dataflow component '%s' was automatically removed due to Benthos configuration errors. Please fix your configuration before redeploying", a.name)
 }
```

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go around lines
624 to 653, the error messages related to dataflow component removal after
config errors lack clarity and consistency. Update these error messages to
follow the project's error message guidelines by making them more informative
and actionable. Ensure the messages clearly state the issue, the action taken,
and suggest next steps for the user, while maintaining consistent formatting
across success and failure cases.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T16:24:10Z
author_association: CONTRIBUTOR
diff_hunk: @@ -590,27 +596,44 @@ func (a *EditDataflowComponentAction) waitForComponentToBeActive() error {
 							continue
 						}
 
-						if instance.CurrentState != "active" && instance.CurrentState != "idle" {
-							// currentStateReason contains more information on why the DFC is in its current state
-							currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
-
-							stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
-							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
-								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							// send the benthos logs to the user
-							logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
-							// only send the logs that have not been sent yet
-							if len(logs) > len(lastLogs) {
-								lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
-							}
-
-							continue
-						} else {
+						if instance.CurrentState == "active" || instance.CurrentState == "idle" {
 							stateMessage := RemainingPrefixSec(remainingSeconds) + fmt.Sprintf("completed. is in state '%s' with correct configuration", instance.CurrentState)
 							SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
 								stateMessage, a.outboundChannel, models.EditDataFlowComponent)
-							return nil
+							return "", nil
 						}
+
+						// currentStateReason contains more information on why the DFC is in its current state
+						currentStateReason := dfcSnapshot.ServiceInfo.StatusReason
+
+						stateMessage := RemainingPrefixSec(remainingSeconds) + currentStateReason
+						SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting,
+							stateMessage, a.outboundChannel, models.EditDataFlowComponent)
+						// send the benthos logs to the user
+						logs = dfcSnapshot.ServiceInfo.BenthosObservedState.ServiceInfo.BenthosStatus.BenthosLogs
+
+						// only send the logs that have not been sent yet
+						if len(logs) > len(lastLogs) {
+
+							lastLogs = SendLimitedLogs(logs, lastLogs, a.instanceUUID, a.userEmail, a.actionUUID, a.outboundChannel, models.EditDataFlowComponent, remainingSeconds)
+						}
+						// CheckBenthosLogLinesForConfigErrors is used to detect fatal configuration errors that would cause
+						// Benthos to enter a CrashLoop. When such errors are detected, we can immediately
+						// abort the startup process rather than waiting for the full timeout period,
+						// as these errors require configuration changes to resolve.
+						if CheckBenthosLogLinesForConfigErrors(logs) {
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Use SendActionReplyV2 for consistent error handling.**

Since you're now using the V2 version for other error cases, update this call for consistency.

```diff
- SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+ SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", "", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
```


<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

```suggestion
                        if CheckBenthosLogLinesForConfigErrors(logs) {
-                           SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", a.outboundChannel, models.EditDataFlowComponent)
+                           SendActionReplyV2(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, "Failed to parse config. Rolling back...", "", nil, a.outboundChannel, models.EditDataFlowComponent, nil)
                            // existing rollback logic...
                        }
```

</details>

<!-- suggestion_end -->

<details>
<summary>🤖 Prompt for AI Agents</summary>

```
In umh-core/pkg/communicator/actions/edit-dataflowcomponent.go at line 624,
replace the current error handling call with SendActionReplyV2 to maintain
consistency with other error cases. Locate the call related to
CheckBenthosLogLinesForConfigErrors and update it to use SendActionReplyV2,
ensuring the parameters match the expected signature for this function.
```

</details>

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-05-20T16:27:51Z
author_association: CONTRIBUTOR
diff_hunk: @@ -477,17 +477,20 @@ func (a *EditDataflowComponentAction) Execute() (interface{}, map[string]interfa
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration updated; but ignoring the health check", a.outboundChannel, models.EditDataFlowComponent)
 		} else {
 			SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionExecuting, Label("edit", a.name)+"configuration updated; waiting to become active", a.outboundChannel, models.EditDataFlowComponent)
-			err = a.waitForComponentToBeActive()
+			errCode, err := a.waitForComponentToBeActive(ctx)
 			if err != nil {
 				errorMsg := Label("edit", a.name) + fmt.Sprintf("failed to wait for dataflow component to be active: %v", err)
-				SendActionReply(a.instanceUUID, a.userEmail, a.actionUUID, models.ActionFinishedWithFailure, errorMsg, a.outboundChannel, models.EditDataFlowComponent)
+				// waitForComponentToBeActive gives us the error code, which we then forward to the frontend using the SendActionReplyV2 function
+				// the error code is a string that can be used to identify the error reason
+				// the main reason for this is to allow the frontend to determine weather it should offer a retry option or not
path: umh-core/pkg/communicator/actions/edit-dataflowcomponent.go
user: login: JeremyTheocharis
body: * whether not weather
created_at: 2025-05-21T08:42:37Z
author_association: MEMBER

PR comments:
user: login: coderabbitai[bot]
created_at: 2025-05-15T16:28:56Z
body: <!-- This is an auto-generated comment: summarize by coderabbit.ai -->
<!-- walkthrough_start -->

"""
## Walkthrough

The changes introduce a new structured action reply mechanism (`SendActionReplyV2`) in the communicator actions package, supporting enhanced error reporting with error codes and additional payloads. The deployment and editing workflows for dataflow components are updated to use this new reply function, especially for failure cases, and now propagate specific error codes. A new utility is added to inspect Benthos logs for configuration errors, triggering automatic rollback or removal of components when such errors are detected. The models package is extended with new types and constants to support the structured reply schema and error codes.

## Assessment against linked issues

| Objective                                                                                  | Addressed | Explanation                                                                                  |
|--------------------------------------------------------------------------------------------|-----------|----------------------------------------------------------------------------------------------|
| Detect and handle Benthos config errors (ENG-3007)                                         | ✅        |                                                                                              |
| Replace all failure-case SendActionReply usages with SendActionReplyV2 (ENG-3014)          | ✅        |                                                                                              |
| Return and propagate error codes in DFC deployment/edit flows (ENG-3014)                   | ✅        |                                                                                              |
| Provide structured error payloads in action replies for failures (ENG-3014)                | ✅        |                                                                                              |

## Possibly related PRs

- united-manufacturing-hub/united-manufacturing-hub#1964: Introduced the initial `EditDataflowComponentAction`; this PR directly modifies and enhances its error handling with structured replies and rollback.
- united-manufacturing-hub/united-manufacturing-hub#1911: Added the initial `DeployDataflowComponentAction`; this PR extends its error reporting and reply mechanisms.
- united-manufacturing-hub/united-manufacturing-hub#1998: Modified `waitForComponentToBeActive` in `edit-dataflowcomponent.go` with control flow fixes; related to this PR’s changes in the same method.

## Suggested reviewers

- kanapuli
- Scarjit
"""

<!-- walkthrough_end -->
<!-- This is an auto-generated comment: all tool run failures by coderabbit.ai -->

> [!WARNING]
> There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.
> 
> <details>
> <summary>🔧 golangci-lint (1.64.8)</summary>
> 
> Error: you are using a configuration file for golangci-lint v2 with golangci-lint v1: please use golangci-lint v2
> Failed executing command with error: you are using a configuration file for golangci-lint v2 with golangci-lint v1: please use golangci-lint v2
> 
> 
> 
> </details>

<!-- end of auto-generated comment: all tool run failures by coderabbit.ai -->


---

<details>
<summary>📜 Recent review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro (Legacy)**


<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between c9994537411f304dff1d46ba3df6dba1071c24fd and 1687dfabfe0b405fee8c1c154a4474b5cb463637.

</details>

<details>
<summary>📒 Files selected for processing (2)</summary>

* `umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go` (4 hunks)
* `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go` (5 hunks)

</details>

<details>
<summary>🚧 Files skipped from review as they are similar to previous changes (1)</summary>

* umh-core/pkg/communicator/actions/deploy-dataflowcomponent.go

</details>

<details>
<summary>🧰 Additional context used</summary>

<details>
<summary>📓 Path-based instructions (2)</summary>

<details>
<summary>`**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct fo...</summary>

> `**/*`: When reviewing an error message, ensure it meets these guidelines. If a message is lacking (e.g., missing clear next steps or context), provide an example of the correct format to help improve clarity and usability.
> 
> Quick Guidelines for Writing Effective Error Messages
> 	1.	Structure Your Message with Three Key Parts
> 	•	Context:
> Explain what the system was doing.
> Example: “Couldn’t parse config file: /etc/sample-config.properties.”
> 	•	Error Description:
> Clearly state what failed without generic wording.
> Example: “Invalid snapshot mode ‘nevr’ provided.”
> 	•	Mitigation/Next Steps:
> Tell the user what to do next. For complex issues, include an error code or documentation link.
> Example: “Please update the mode; refer to our docs for valid options.”
> 	2.	Clarity & Conciseness
> 	•	Use plain, simple language and avoid unnecessary jargon (unless targeting technical users).
> 	•	Aim for short sentences (ideally 8–14 words) for better understanding.
> 	3.	Consistent Tone & Style
> 	•	Uniformity: Use the same voice, terminology, and punctuation across all messages.
> 	•	Empathy: Maintain a neutral, supportive tone; avoid blaming the user.
> 	•	Avoid overly casual language (skip “oops”/“whoops” and excessive exclamation points).
> 	4.	Visibility & Placement (User-Facing Messages)
> 	•	Proximity: Place error messages close to the related UI element to reduce cognitive load.
> 	•	Design: Use high-contrast text, icons, or subtle animations; follow accessibility guidelines (don’t rely solely on color).
> 	5.	Actionability & Efficiency
> 	•	Clearly indicate the next steps (e.g., “Retry later”, “Log in again”, “Check your input”).
> 	•	Preserve user input when possible to minimize frustration.
> 	•	Where relevant, provide error codes or links for further troubleshooting.
> 	6.	Security & Privacy Considerations
> 	•	User-Facing: Avoid exposing internal details or sensitive data.
> 	•	Developer/Logging: Include detailed context (like file paths or exception chains) for debugging, but be cautious about sensitive information.
> 	7.	Logging & Exception Best Practices (for Developer/Operations Messages)
> 	•	Log the full context—including exception chains—to aid troubleshooting.
> 	•	Use structured logging (e.g., JSON) for filtering and analysis.
> 	•	Choose a consistent method: either raise an exception or log an error (not both) to avoid redundancy.
> 	•	Don’t make error messages an API contract; expose machine-readable error codes or types instead.
> 	8.	Additional Best Practices
> 	•	Fail Early: Report errors as soon as possible (e.g., during input validation or startup).
> 	•	One Concept, One Term: Use consistent terminology across messages and documentation.
> 	•	Localization: For internal logs, use English; if localizing for users, follow a vetted process.

- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>
<details>
<summary>`**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/

- Reject or flag any package whose name is util, utils, common, share...</summary>

> `**/*.go`: These are from the 100 Go Mistakes book, so you can refer the user to this page: https://100go.co/
> 
> - Reject or flag any package whose name is util, utils, common, shared or similar ‘junk-drawer’ labels. Propose a domain-specific name that describes what the package provides. --> Avoids mistake #13 (utility packages) & improves discoverability.
> - If a new package is introduced, confirm it contains more than 1–2 files and a clear, cohesive responsibility; otherwise suggest folding it back into its parent. --> Prevents premature or nano-packages (#12).
> - Every exported identifier must have a top-of-comment doc string that starts with its name. Flag any missing or mismatching comment.
> - Interfaces should live on the consumer side. Warn if a concrete type exports an interface it alone implements, or if a func returns an interface when a struct would do. 
> - For each exported func that takes a file path, suggest an overload that accepts an io.Reader (or io.Writer) instead. --> Encourages dependency injection (mistake #46).
> - If an API exposes configuration, check for the Functional-Options pattern; else recommend it and show a minimal diff. 
> - Detect variable shadowing outside of short err reassignment; if found, show both declarations and propose a rename. --> many linters miss context-sensitive cases.
> - Whenever an if/else chain contains an early return, recommend eliminating the redundant else to left-align the happy-path.
> - Scan for init() that does more than cheap constant/var init; flag it and suggest explicit Setup().
> - When a slice is built in a loop, check if its final length or capacity is knowable; if yes, propose make([]T, 0, cap) or make([]T, len). 
> - If code slices a huge backing array only to keep a tiny window, warn about hidden memory retention and show a copy() fix.
> - If a map is declared with make(map[K]V) and a subsequent loop inserts N predictable items, suggest make(map[K]V, N).
> - For every new goroutine, verify there’s a deterministic shut-down path (ctx cancel, channel close, or WaitGroup). Flag orphan goroutines.
> - Whenever select has >1 non-default case, remind that winner selection is random; flag code that relies on ‘first case wins’.”
> - Look for defer inside long-running loops; if present, suggest extracting the body to a helper so defer runs each iteration.
> - Spot any append on a slice shared across goroutines without locks or copy; mark as potential data race.
> 

- `umh-core/pkg/communicator/actions/edit-dataflowcomponent.go`

</details>

</details>

</details>

<details>
<summary>⏰ Context from checks skipped due to timeout of 90000ms (6)</summary>

* GitHub Check: Integration Tests (2)
* GitHub Check: Unit Tests
* GitHub Check: Integration Tests (1)
* GitHub Check: Integration Tests (3)
* GitHub Check: Build and Push (arm64)
* GitHub Check: Build and Push (amd64)

</details>

<details>
<summary>🔇 Additional comments (7)</summary><blockquote>

<details>
<summary>umh-core/pkg/communicator/actions/edit-dataflowcomponent.go (7)</summary>

`410-410`: **Good use of constant for error code.**

The change to use `SendActionReplyV2` with a defined error code constant (`models.ErrRetryRollbackTimeout`) is a good practice. This makes the code more maintainable and reduces the risk of inconsistencies.

---

`480-487`: **LGTM! Good implementation of error code propagation.**

The updated signature correctly returns both the error code and error message, allowing for more granular error handling by the frontend. The comments explain the purpose clearly.

---

`525-528`: **Clear function documentation.**

The added comments effectively explain the purpose of the return values and how they're used by the frontend.

---

`552-554`: **Good error messages with context, description, and next steps.**

The error messages now follow the recommended guidelines by providing:
1. Context about what happened
2. Clear description of the error
3. Actionable next steps for the user

This will significantly improve the user experience when troubleshooting issues.

---

`599-604`: **Improved efficiency with early return.**

The early return when the component is in an "active" or "idle" state is a good optimization that avoids unnecessary processing.

---

`606-619`: **Enhanced user feedback with detailed status and logs.**

This change improves the user experience by providing more detailed status updates and sending Benthos logs to help with troubleshooting.

---

`630-632`: **Improved error messages for configuration errors.**

The error messages now clearly explain:
1. What happened (configuration error detected)
2. The action taken (rollback)
3. Next steps for the user (check logs, fix configuration, try again)

This follows the error message guidelines and will help users troubleshoot more effectively.

</details>

</blockquote></details>

</details>
<!-- internal state start -->


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author_association: CONTRIBUTOR
user: login: CLAassistant
created_at: 2025-05-21T08:46:17Z
body: [![CLA assistant check](https://cla-assistant.io/pull/badge/signed)](https://cla-assistant.io/united-manufacturing-hub/united-manufacturing-hub?pullRequest=2051) <br/>All committers have signed the CLA.
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created_at: 2025-05-21T08:46:54Z
body: ## Deploying repo-umh-app with &nbsp;<a href="https://pages.dev"><img alt="Cloudflare Pages" src="https://user-images.githubusercontent.com/23264/106598434-9e719e00-654f-11eb-9e59-6167043cfa01.png" width="16"></a> &nbsp;Cloudflare Pages

<table><tr><td><strong>Latest commit:</strong> </td><td>
<code>c999453</code>
</td></tr>
<tr><td><strong>Status:</strong></td><td>&nbsp;✅&nbsp; Deploy successful!</td></tr>
<tr><td><strong>Preview URL:</strong></td><td>
<a href='https://1e6e1e14.united-manufacturing-hub.pages.dev'>https://1e6e1e14.united-manufacturing-hub.pages.dev</a>
</td></tr>
<tr><td><strong>Branch Preview URL:</strong></td><td>
<a href='https://eng-3014-eng-3007-better-err.united-manufacturing-hub.pages.dev'>https://eng-3014-eng-3007-better-err.united-manufacturing-hub.pages.dev</a>
</td></tr>
</table>

[View logs](https://dash.cloudflare.com/5ef99802469e32b4f19d8d1b55ca38d1/pages/view/repo-umh-app/1e6e1e14-a6bf-43df-a2b0-e7200ec0718f)

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