Repository: kubeless/kubeless
Pull request #1199 (2020-11-27 23:18:05)

Strict deployment loading from configmap
**Issue Ref**: #1197 
 
**Description**: 
Fail if a deployment configuration in the ConfigMap has unknown or duplicate keys.

**TODOs**:
 - [x] Ready to review
 - [x] Automated Tests
 - [x] Docs


andrascz: @andresmgot is there a place in the docs where we can note this?

Patch:
diff --git a/docs/function-controller-configuration.md b/docs/function-controller-configuration.md
index 94d8526d..510cd1a1 100644
--- a/docs/function-controller-configuration.md
+++ b/docs/function-controller-configuration.md
@@ -4,7 +4,8 @@
 
 Configurations for functions can be done in `ConfigMap`: `kubeless-config` which is a part of `Kubeless` deployment manifests.
 
-Deployments for function can be configured in `data` inside the `ConfigMap`, using key `deployment`, which takes a string in the form of `yaml/json` and is driven by the structure of [v1.Deployment](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#deployment-v1-apps):
+Deployments for function can be configured in `data` inside the `ConfigMap`, using key `deployment`, which takes a string in the form of `yaml/json` and is driven by the structure of [v1.Deployment](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#deployment-v1-apps).
+Unknown fields or duplicate keys in the provided deployment data will result in an error.
 
 E.g. In the below configuration, new **annotations** are added globally to all function deployments and podTemplates and **replicas** for each function pod will be `2`.
 
@@ -44,6 +45,45 @@ metadata:
   namespace: kubeless
 ```
 
+The following configuration will result in an error because of duplicate key:
+
+```yaml
+apiVersion: v1
+data:
+  deployment: |-
+    {
+      "metadata": {
+          "annotations":{
+            "annotation-to-deployment": "value",
+            "annotation-to-deployment": "other value",
+          }
+      }
+    }
+  ingress-enabled: "false"
+  service-type: ClusterIP
+kind: ConfigMap
+metadata:
+  name: kubeless-config
+  namespace: kubeless
+```
+
+The following configuration will result in an error because of unknown key:
+
+```yaml
+apiVersion: v1
+data:
+  deployment: |-
+    {
+      "unknown": "hack",
+    }
+  ingress-enabled: "false"
+  service-type: ClusterIP
+kind: ConfigMap
+metadata:
+  name: kubeless-config
+  namespace: kubeless
+```
+
 It is **recommended** to have controlled custom configurations on the following **items** (*but is not limited to just these*):
 
 > Warning: You should know what you are doing.
@@ -239,10 +279,10 @@ It is possible to configure the different images that Kubeless uses to deploy an
   - (Optional) Secrets: Shared with the container as volumes mounted at `/var/run/secrets/kubeless.io/`.
  - The image used to populate the base image with the function. This is called `provision-image`. This image should have at least `unzip`, `GNU tar`, `gzip`, `bzip2`, `xz` and `curl`. It is also possible to specify `provision-image-secret` to specify a secret to pull that image from a private registry.
  - The image used to build function images. This is called `builder-image`. This image is optional since its usage can be disabled with the property `enable-build-step`. A Dockerfile to build this image can be found [here](https://github.com/kubeless/kubeless/tree/master/docker/function-image-builder). It is also possible to specify `builder-image-secret` to specify a secret to pull that image from a private registry.
- 
+
 ## Authenticate Kubeless Function Controller using OAuth Bearer Token
 
-In some non-RBAC k8s deployments using webhook authorization, service accounts may have insufficient privileges to perform all k8s operations that the Kubeless Function Controller requires for interacting with the cluster. It's possible to override the default behavior of the Kubeless Function Controller using a k8s serviceaccount for authentication with the cluster and instead use a provided OAuth Bearer token for all k8s operations. 
+In some non-RBAC k8s deployments using webhook authorization, service accounts may have insufficient privileges to perform all k8s operations that the Kubeless Function Controller requires for interacting with the cluster. It's possible to override the default behavior of the Kubeless Function Controller using a k8s serviceaccount for authentication with the cluster and instead use a provided OAuth Bearer token for all k8s operations.
 
 This can be done by creating a k8s secret and mounting that secret as a volume on controller pods, then setting the environmental variable `KUBELESS_TOKEN_FILE_PATH` to the filepath of that secret. Be sure to set this environmental variable on the controller template spec or to every pod created in the deployment.
 
diff --git a/go.mod b/go.mod
index de2ee31c..6add98bf 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/aws/aws-sdk-go v1.16.26
 	github.com/coreos/prometheus-operator v0.0.0-20171201110357-197eb012d973
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
-	github.com/ghodss/yaml v1.0.0
+	github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
 	github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
 	github.com/googleapis/gnostic v0.2.0 // indirect
@@ -34,6 +34,7 @@ require (
 	github.com/spf13/cobra v1.1.1
 	golang.org/x/build v0.0.0-20190111050920-041ab4dc3f9d // indirect
 	golang.org/x/net v0.0.0-20190620200207-3b0461eec859
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 	k8s.io/api v0.0.0-20180308224125-73d903622b73
 	k8s.io/apiextensions-apiserver v0.0.0-20180327033742-750feebe2038
 	k8s.io/apimachinery v0.0.0-20180228050457-302974c03f7e
diff --git a/go.sum b/go.sum
index 7d06614d..7b8194e9 100644
--- a/go.sum
+++ b/go.sum
@@ -4,7 +4,19 @@ cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
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+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
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 dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
 dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
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@@ -12,36 +24,58 @@ git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGy
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+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
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 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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@@ -51,6 +85,8 @@ github.com/gogo/protobuf v0.0.0-20170330071051-c0656edd0d9e/go.mod h1:r8qH/GZQm5
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@@ -59,11 +95,17 @@ github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4er
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@@ -98,11 +168,17 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
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@@ -124,17 +200,31 @@ github.com/kubeless/kinesis-trigger v0.0.0-20180817123215-a548c3d1cbd9/go.mod h1
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@@ -146,10 +236,13 @@ github.com/nats-io/nuid v1.0.0 h1:44QGdhbiANq8ZCbUkdn6W5bqtg+mHuDE4wOUuxxndFs=
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@@ -157,24 +250,38 @@ github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
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 gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
 gopkg.in/inf.v0 v0.9.0/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
+gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 k8s.io/api v0.0.0-20180103175015-389dfa299845/go.mod h1:iuAfoD4hCxJ8Onx9kaTIt30j7jUFS00AXQi6QMi99vA=
 k8s.io/api v0.0.0-20180308224125-73d903622b73 h1:5Z+PFfTIOXwKmOhQtZ0WBykbpGBBOuvbDx2YNAqIoYc=
 k8s.io/api v0.0.0-20180308224125-73d903622b73/go.mod h1:iuAfoD4hCxJ8Onx9kaTIt30j7jUFS00AXQi6QMi99vA=
@@ -309,5 +539,6 @@ k8s.io/client-go v5.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodB
 k8s.io/client-go v7.0.0+incompatible h1:kiH+Y6hn+pc78QS/mtBfMJAMIIaWevHi++JvOGEEQp4=
 k8s.io/client-go v7.0.0+incompatible/go.mod h1:7vJpHMYJwNQCWgzmNV+VYUl1zCObLyodBc8nIyt8L5s=
 k8s.io/kube-openapi v0.0.0-20170830100654-868f2f29720b/go.mod h1:BXM9ceUBTj2QnfH2MK1odQs778ajze1RxcmP6S8RVVc=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
 sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
diff --git a/pkg/controller/function_controller.go b/pkg/controller/function_controller.go
index c9d00172..e7ba2aff 100644
--- a/pkg/controller/function_controller.go
+++ b/pkg/controller/function_controller.go
@@ -302,7 +302,7 @@ func (c *FunctionController) ensureK8sResources(funcObj *kubelessApi.Function) e
 
 	deployment := appsv1.Deployment{}
 	if deploymentConfigData, ok := c.config.Data["deployment"]; ok {
-		err := yaml.Unmarshal([]byte(deploymentConfigData), &deployment)
+		err := yaml.UnmarshalStrict([]byte(deploymentConfigData), &deployment, yaml.DisallowUnknownFields)
 		if err != nil {
 			logrus.Errorf("Error parsing Deployment data in ConfigMap kubeless-function-deployment-config: %v", err)
 			return err


Test patch:
diff --git a/pkg/controller/function_controller_test.go b/pkg/controller/function_controller_test.go
index 21e3cd1c..3488dbc0 100644
--- a/pkg/controller/function_controller_test.go
+++ b/pkg/controller/function_controller_test.go
@@ -12,6 +12,7 @@ import (
 	"k8s.io/api/autoscaling/v2beta1"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/kubernetes/fake"
 	ktesting "k8s.io/client-go/testing"
 )
@@ -111,56 +112,7 @@ func TestDeleteK8sResources(t *testing.T) {
 }
 
 func TestEnsureK8sResourcesWithDeploymentDefinitionFromConfigMap(t *testing.T) {
-	namespace := "default"
-	funcName := "foo"
-	var replicas int32
-	replicas = 10
-	funcLabels := map[string]string{
-		"foo": "bar",
-	}
-	funcAnno := map[string]string{
-		"bar": "foo",
-		"xyz": "valuefromfunc",
-	}
-	funcObj := kubelessApi.Function{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:      funcName,
-			Namespace: namespace,
-			Labels:    funcLabels,
-			UID:       "foo-uid",
-		},
-		Spec: kubelessApi.FunctionSpec{
-			Function: "function",
-			Deps:     "deps",
-			Handler:  "foo.bar",
-			Runtime:  "ruby2.4",
-			Deployment: appsv1.Deployment{
-				ObjectMeta: metav1.ObjectMeta{
-					Annotations: funcAnno,
-				},
-				Spec: appsv1.DeploymentSpec{
-					Replicas: &replicas,
-					Template: v1.PodTemplateSpec{
-						ObjectMeta: metav1.ObjectMeta{
-							Annotations: funcAnno,
-						},
-						Spec: v1.PodSpec{
-							Containers: []v1.Container{
-								{
-									Env: []v1.EnvVar{
-										{
-											Name:  "foo",
-											Value: "bar",
-										},
-									},
-								},
-							},
-						},
-					},
-				},
-			},
-		},
-	}
+	funcObj := testFunc()
 	deploymentConfigData := `{
 		"metadata": {
 			"annotations": {
@@ -180,59 +132,16 @@ func TestEnsureK8sResourcesWithDeploymentDefinitionFromConfigMap(t *testing.T) {
 		}
 	}`
 
-	runtimeImages := []langruntime.RuntimeInfo{{
-		ID:             "ruby",
-		DepName:        "Gemfile",
-		FileNameSuffix: ".rb",
-		Versions: []langruntime.RuntimeVersion{
-			{
-				Name:    "ruby24",
-				Version: "2.4",
-				Images: []langruntime.Image{
-					{Phase: "runtime", Image: "bitnami/ruby:2.4"},
-				},
-				ImagePullSecrets: []langruntime.ImageSecret{},
-			},
-		},
-	}}
-
-	out, err := yaml.Marshal(runtimeImages)
-	if err != nil {
-		logrus.Fatal("Canot Marshall runtimeimage")
-	}
-
 	clientset := fake.NewSimpleClientset()
-	kubelessConfigMap := &v1.ConfigMap{
-		ObjectMeta: metav1.ObjectMeta{
-			Name: "kubeless-config",
-		},
-		Data: map[string]string{"deployment": deploymentConfigData, "runtime-images": string(out)},
-	}
-	deploymentObjFromConfigMap := appsv1.Deployment{}
-	_ = yaml.Unmarshal([]byte(deploymentConfigData), &deploymentObjFromConfigMap)
-	_, err = clientset.CoreV1().ConfigMaps(namespace).Create(kubelessConfigMap)
-	if err != nil {
-		logrus.Fatal("Unable to create configmap")
-	}
+	controller := testController(clientset, funcObj.Namespace, map[string]string{
+		"deployment":     deploymentConfigData,
+		"runtime-images": testRuntimeImages(),
+	})
 
-	config, err := clientset.CoreV1().ConfigMaps(namespace).Get("kubeless-config", metav1.GetOptions{})
-	if err != nil {
-		logrus.Fatal("Unable to read the configmap")
-	}
-	var lr = langruntime.New(config)
-	lr.ReadConfigMap()
-
-	controller := FunctionController{
-		logger:      logrus.WithField("pkg", "controller"),
-		clientset:   clientset,
-		langRuntime: lr,
-		config:      config,
-	}
-
-	if err := controller.ensureK8sResources(&funcObj); err != nil {
+	if err := controller.ensureK8sResources(funcObj); err != nil {
 		t.Fatalf("Creating/Updating resources returned err: %v", err)
 	}
-	dpm, _ := clientset.AppsV1().Deployments(namespace).Get(funcName, metav1.GetOptions{})
+	dpm, _ := clientset.AppsV1().Deployments(funcObj.Namespace).Get(funcObj.Name, metav1.GetOptions{})
 	expectedAnnotations := map[string]string{
 		"bar":                "foo",
 		"foo-from-deploy-cm": "bar-from-deploy-cm",
@@ -259,23 +168,93 @@ func TestEnsureK8sResourcesWithDeploymentDefinitionFromConfigMap(t *testing.T) {
 	}
 }
 
+func TestEnsureK8sResourcesWithDeploymentDefinitionFromConfigMapUnknownKey(t *testing.T) {
+	funcObj := testFunc()
+	deploymentConfigData := `{
+		"spec": {
+			"template": {
+				"spec": {
+					"unknown": "property"
+				}
+			}
+		}
+	}`
+	controller := testController(fake.NewSimpleClientset(), funcObj.Namespace, map[string]string{
+		"deployment":     deploymentConfigData,
+		"runtime-images": testRuntimeImages(),
+	})
+
+	if err := controller.ensureK8sResources(funcObj); err == nil {
+		t.Fatalf("Unknown key in ConfigMap Deployment definition does not fail")
+	}
+}
+
 func TestEnsureK8sResourcesWithLivenessProbeFromConfigMap(t *testing.T) {
-	namespace := "default"
-	funcName := "foo"
+	funcObj := testFunc()
+	runtimeImages := `[
+		{
+			"ID": "ruby",
+			"depName": "Gemfile",
+			"fileNameSuffix": ".rb",
+			"versions": [
+				{
+					"name": "ruby24",
+					"version": "2.4",
+					"initImage": "bitnami/ruby:2.4",
+					"imagePullSecrets":[]
+				}
+			],
+			"livenessProbeInfo":{
+				"exec": {
+					"command": [
+						"curl",
+						"-f",
+						"http://localhost:8080/healthz"
+					],
+				},
+				"initialDelaySeconds": 5,
+				"periodSeconds": 10
+			}
+		}
+	]`
+
+	clientset := fake.NewSimpleClientset()
+	controller := testController(clientset, funcObj.Namespace, map[string]string{
+		"runtime-images": runtimeImages,
+	})
+
+	if err := controller.ensureK8sResources(funcObj); err != nil {
+		t.Fatalf("Creating/Updating resources returned err: %v", err)
+	}
+	dpm, _ := clientset.AppsV1().Deployments(funcObj.Namespace).Get(funcObj.Name, metav1.GetOptions{})
+	expectedLivenessProbe := &v1.Probe{
+		InitialDelaySeconds: int32(5),
+		PeriodSeconds:       int32(10),
+		Handler: v1.Handler{
+			Exec: &v1.ExecAction{
+				Command: []string{"curl", "-f", "http://localhost:8080/healthz"},
+			},
+		},
+	}
+
+	if !reflect.DeepEqual(dpm.Spec.Template.Spec.Containers[0].LivenessProbe, expectedLivenessProbe) {
+		t.Fatalf("LivenessProbe found is '%v', although expected was '%v'", dpm.Spec.Template.Spec.Containers[0].LivenessProbe, expectedLivenessProbe)
+	}
+
+}
+
+func testFunc() *kubelessApi.Function {
 	var replicas int32
 	replicas = 10
-	funcLabels := map[string]string{
-		"foo": "bar",
-	}
 	funcAnno := map[string]string{
 		"bar": "foo",
 		"xyz": "valuefromfunc",
 	}
-	funcObj := kubelessApi.Function{
+	return &kubelessApi.Function{
 		ObjectMeta: metav1.ObjectMeta{
-			Name:      funcName,
-			Namespace: namespace,
-			Labels:    funcLabels,
+			Name:      "foo",
+			Namespace: "default",
+			Labels:    map[string]string{"foo": "bar"},
 			UID:       "foo-uid",
 		},
 		Spec: kubelessApi.FunctionSpec{
@@ -310,41 +289,39 @@ func TestEnsureK8sResourcesWithLivenessProbeFromConfigMap(t *testing.T) {
 			},
 		},
 	}
-	runtimeImages := `[
-		{
-			"ID": "ruby",
-			"depName": "Gemfile",
-			"fileNameSuffix": ".rb",
-			"versions": [
-				{
-					"name": "ruby24",
-					"version": "2.4",
-					"initImage": "bitnami/ruby:2.4",
-					"imagePullSecrets":[]
-				}
-			],
-			"livenessProbeInfo":{
-				"exec": {
-					"command": [
-						"curl",
-						"-f",
-						"http://localhost:8080/healthz"
-					],
+}
+
+func testRuntimeImages() string {
+	runtimeImages := []langruntime.RuntimeInfo{{
+		ID:             "ruby",
+		DepName:        "Gemfile",
+		FileNameSuffix: ".rb",
+		Versions: []langruntime.RuntimeVersion{
+			{
+				Name:    "ruby24",
+				Version: "2.4",
+				Images: []langruntime.Image{
+					{Phase: "runtime", Image: "bitnami/ruby:2.4"},
 				},
-				"initialDelaySeconds": 5,
-				"periodSeconds": 10
-			}
-		}
-	]`
+				ImagePullSecrets: []langruntime.ImageSecret{},
+			},
+		},
+	}}
 
-	clientset := fake.NewSimpleClientset()
+	out, err := yaml.Marshal(runtimeImages)
+	if err != nil {
+		logrus.Fatal("Canot Marshall runtimeimage")
+	}
+	return string(out)
+}
+
+func testController(clientset kubernetes.Interface, namespace string, configData map[string]string) *FunctionController {
 	kubelessConfigMap := &v1.ConfigMap{
 		ObjectMeta: metav1.ObjectMeta{
 			Name: "kubeless-config",
 		},
-		Data: map[string]string{"runtime-images": runtimeImages},
+		Data: configData,
 	}
-
 	_, err := clientset.CoreV1().ConfigMaps(namespace).Create(kubelessConfigMap)
 	if err != nil {
 		logrus.Fatal("Unable to create configmap")
@@ -357,29 +334,10 @@ func TestEnsureK8sResourcesWithLivenessProbeFromConfigMap(t *testing.T) {
 	var lr = langruntime.New(config)
 	lr.ReadConfigMap()
 
-	controller := FunctionController{
+	return &FunctionController{
 		logger:      logrus.WithField("pkg", "controller"),
 		clientset:   clientset,
 		langRuntime: lr,
 		config:      config,
 	}
-
-	if err := controller.ensureK8sResources(&funcObj); err != nil {
-		t.Fatalf("Creating/Updating resources returned err: %v", err)
-	}
-	dpm, _ := clientset.AppsV1().Deployments(namespace).Get(funcName, metav1.GetOptions{})
-	expectedLivenessProbe := &v1.Probe{
-		InitialDelaySeconds: int32(5),
-		PeriodSeconds:       int32(10),
-		Handler: v1.Handler{
-			Exec: &v1.ExecAction{
-				Command: []string{"curl", "-f", "http://localhost:8080/healthz"},
-			},
-		},
-	}
-
-	if !reflect.DeepEqual(dpm.Spec.Template.Spec.Containers[0].LivenessProbe, expectedLivenessProbe) {
-		t.Fatalf("LivenessProbe found is '%v', although expected was '%v'", dpm.Spec.Template.Spec.Containers[0].LivenessProbe, expectedLivenessProbe)
-	}
-
 }