Chapter 2. Deploy OpenShift Data Foundation using dynamic storage devices You can deploy OpenShift Data Foundation on OpenShift Container Platform using dynamic storage devices provided by Amazon Web Services (AWS) EBS (type, gp2-csi or gp3-csi ) that provides you with the option to create internal cluster resources. This results in the internal provisioning of the base services, which helps to make additional storage classes available to applications. Although, it is possible to deploy only the Multicloud Object Gateway (MCG) component with OpenShift Data Foundation, this deployment method is not supported on ROSA. Note Only internal OpenShift Data Foundation clusters are supported on ROSA. See Planning your deployment for more information about deployment requirements. Also, ensure that you have addressed the requirements in Preparing to deploy OpenShift Data Foundation chapter before proceeding with the below steps for deploying using dynamic storage devices: Install the Red Hat OpenShift Data Foundation Operator . Create the OpenShift Data Foundation Cluster . 2.1. Installing Red Hat OpenShift Data Foundation Operator You can install Red Hat OpenShift Data Foundation Operator using the Red Hat OpenShift Container Platform Operator Hub for ROSA with hosted control planes (HCP). Prerequisites Access to an OpenShift Container Platform cluster using an account with cluster-admin and operator installation permissions. You must have at least three worker or infrastructure nodes in the Red Hat OpenShift Container Platform cluster. For additional resource requirements, see the Planning your deployment guide. Important When you need to override the cluster-wide default node selector for OpenShift Data Foundation, you can use the following command to specify a blank node selector for the storage namespace: Taint a node as infra to ensure only Red Hat OpenShift Data Foundation resources are scheduled on that node. This helps you save on subscription costs. For more information, see the How to use dedicated worker nodes for Red Hat OpenShift Data Foundation section in the Managing and Allocating Storage Resources guide. Procedure Log in to the OpenShift Web Console. Click Operators OperatorHub . Scroll or type OpenShift Data Foundation into the Filter by keyword box to find the OpenShift Data Foundation Operator. Click Install . Set the following options on the Install Operator page: Fill in role ARN . For instruction to create a Amazon resource name (ARN), see Creating an AWS role using a script . Update Channel as stable-4.18 . Installation Mode as A specific namespace on the cluster . Installed Namespace as Select a Namespace . Note openshift-storage Namespace is not recommended for ROSA deployments. Use a user defined namespace for this deployment. Avoid using "redhat" or "openshift" prefixes in namespaces. Important This guide uses <storage_namespace> as an example namespace. Replace <storage_namespace> with your defined namespace in later steps. Select Approval Strategy as Automatic or Manual . If you select Automatic updates, then the Operator Lifecycle Manager (OLM) automatically upgrades the running instance of your Operator without any intervention. If you select Manual updates, then the OLM creates an update request. As a cluster administrator, you must then manually approve that update request to update the Operator to a newer version. Manual updates strategy is recommended for ROSA with hosted control planes. Ensure that the Enable option is selected for the Console plugin . Click Install . Verification steps After the operator is successfully installed, a pop-up with a message, Web console update is available appears on the user interface. Click Refresh web console from this pop-up for the console changes to reflect. In the Web Console: Navigate to Installed Operators and verify that the OpenShift Data Foundation Operator shows a green tick indicating successful installation. Navigate to Storage and verify if the Data Foundation dashboard is available. 2.2. Enabling cluster-wide encryption with KMS using the Token authentication method You can enable the key value backend path and policy in the vault for token authentication. Prerequisites Administrator access to the vault. A valid Red Hat OpenShift Data Foundation Advanced subscription. For more information, see the knowledgebase article on OpenShift Data Foundation subscriptions . Carefully, select a unique path name as the backend path that follows the naming convention since you cannot change it later. Procedure Enable the Key/Value (KV) backend path in the vault. For vault KV secret engine API, version 1: For vault KV secret engine API, version 2: Create a policy to restrict the users to perform a write or delete operation on the secret: Create a token that matches the above policy: 2.3. Enabling cluster-wide encryption with KMS using the Kubernetes authentication method You can enable the Kubernetes authentication method for cluster-wide encryption using the Key Management System (KMS). Prerequisites Administrator access to Vault. A valid Red Hat OpenShift Data Foundation Advanced subscription. For more information, see the knowledgebase article on OpenShift Data Foundation subscriptions . The OpenShift Data Foundation operator must be installed from the Operator Hub. Select a unique path name as the backend path that follows the naming convention carefully. You cannot change this path name later. Procedure Create a service account: where, <serviceaccount_name> specifies the name of the service account. For example: Create clusterrolebindings and clusterroles : For example: Create a secret for the serviceaccount token and CA certificate. where, <serviceaccount_name> is the service account created in the earlier step, and <storage_namespace> is the namespace where ODF operator and StorageSystem were created. Get the token and the CA certificate from the secret. Retrieve the OCP cluster endpoint. Fetch the service account issuer: Use the information collected in the step to setup the Kubernetes authentication method in Vault: Important To configure the Kubernetes authentication method in Vault when the issuer is empty: Enable the Key/Value (KV) backend path in Vault. For Vault KV secret engine API, version 1: For Vault KV secret engine API, version 2: Create a policy to restrict the users to perform a write or delete operation on the secret: Generate the roles: The role odf-rook-ceph-op is later used while you configure the KMS connection details during the creation of the storage system. 2.4. Creating OpenShift Data Foundation cluster Create an OpenShift Data Foundation cluster after you install the OpenShift Data Foundation operator. Procedure In the OpenShift Web Console, click Operators Installed Operators to view all the installed operators. Ensure that the Project selected is openshift-storage . Click on the OpenShift Data Foundation operator, and then click Create StorageSystem . In the Backing storage page, select the following: Select Full Deployment for the Deployment type option. Select the Use an existing StorageClass option. Optional: Select Use external PostgreSQL checkbox to use an external PostgreSQL [Technology preview] . This provides high availability solution for Multicloud Object Gateway where the PostgreSQL pod is a single point of failure. Provide the following connection details: Username Password Server name and Port Database name Select Enable TLS/SSL checkbox to enable encryption for the Postgres server. Click . In the Capacity and nodes page, provide the necessary information: Select a value for Requested Capacity from the dropdown list. It is set to 2 TiB by default. Note Once you select the initial storage capacity, cluster expansion is performed only using the selected usable capacity (three times of raw storage). In the Select Nodes section, select at least three available nodes. In the Configure performance section, select one of the following performance profiles: Lean Use this in a resource constrained environment with minimum resources that are lower than the recommended. This profile minimizes resource consumption by allocating fewer CPUs and less memory. Balanced (default) Use this when recommended resources are available. This profile provides a balance between resource consumption and performance for diverse workloads. Performance Use this in an environment with sufficient resources to get the best performance. This profile is tailored for high performance by allocating ample memory and CPUs to ensure optimal execution of demanding workloads. Note You have the option to configure the performance profile even after the deployment using the Configure performance option from the options menu of the StorageSystems tab. Important Before selecting a resource profile, make sure to check the current availability of resources within the cluster. Opting for a higher resource profile in a cluster with insufficient resources might lead to installation failures. For more information about resource requirements, see Resource requirement for performance profiles . Optional: Select the Taint nodes checkbox to dedicate the selected nodes for OpenShift Data Foundation. Click . Optional: In the Security and network page, configure the following based on your requirements: To enable encryption, select Enable data encryption for block and file storage . Select either one or both the encryption levels: Cluster-wide encryption Encrypts the entire cluster (block and file). StorageClass encryption Creates encrypted persistent volume (block only) using encryption enabled storage class. Optional: Select the Connect to an external key management service checkbox. This is optional for cluster-wide encryption. From the Key Management Service Provider drop-down list, select one of the following providers and provide the necessary details: Vault Select an Authentication Method . Using Token authentication method Enter a unique Connection Name , host Address of the Vault server ('https://<hostname or ip>'), Port number and Token . Expand Advanced Settings to enter additional settings and certificate details based on your Vault configuration: Enter the Key Value secret path in Backend Path that is dedicated and unique to OpenShift Data Foundation. Optional: Enter TLS Server Name and Vault Enterprise Namespace . Upload the respective PEM encoded certificate file to provide the CA Certificate , Client Certificate and Client Private Key . Click Save . Using Kubernetes authentication method Enter a unique Vault Connection Name , host Address of the Vault server ('https://<hostname or ip>'), Port number and Role name. Expand Advanced Settings to enter additional settings and certificate details based on your Vault configuration: Enter the Key Value secret path in Backend Path that is dedicated and unique to OpenShift Data Foundation. Optional: Enter TLS Server Name and Authentication Path if applicable. Upload the respective PEM encoded certificate file to provide the CA Certificate , Client Certificate and Client Private Key . Click Save . Note In case you need to enable key rotation for Vault KMS, run the following command in the OpenShift web console after the storage cluster is created: Thales CipherTrust Manager (using KMIP) Enter a unique Connection Name for the Key Management service within the project. In the Address and Port sections, enter the IP of Thales CipherTrust Manager and the port where the KMIP interface is enabled. For example: Address : 123.34.3.2 Port : 5696 Upload the Client Certificate , CA certificate , and Client Private Key . If StorageClass encryption is enabled, enter the Unique Identifier to be used for encryption and decryption generated above. The TLS Server field is optional and used when there is no DNS entry for the KMIP endpoint. For example, kmip_all_<port>.ciphertrustmanager.local . To enable in-transit encryption, select In-transit encryption . Select a Network . Click . In the Review and create page, review the configuration details. To modify any configuration settings, click Back . Click Create StorageSystem . Note When your deployment has five or more nodes, racks, or rooms, and when there are five or more number of failure domains present in the deployment, you can configure Ceph monitor counts based on the number of racks or zones. An alert is displayed in the notification panel or Alert Center of the OpenShift Web Console to indicate the option to increase the number of Ceph monitor counts. You can use the Configure option in the alert to configure the Ceph monitor counts. For more information, see Resolving low Ceph monitor count alert . Verification steps To verify the final Status of the installed storage cluster: In the OpenShift Web Console, navigate to Installed Operators OpenShift Data Foundation Storage System ocs-storagecluster-storagesystem Resources . Verify that Status of StorageCluster is Ready and has a green tick mark to it. Additional resources To enable Overprovision Control alerts, refer to Alerts in Monitoring guide. 2.5. Verifying OpenShift Data Foundation deployment To verify that OpenShift Data Foundation is deployed correctly: Verify the state of the pods . Verify that the OpenShift Data Foundation cluster is healthy . Verify that the OpenShift Data Foundation specific storage classes exist . 2.5.1. Verifying the state of the pods Procedure Click Workloads Pods from the OpenShift Web Console. Select openshift-storage from the Project drop-down list. Note If the Show default projects option is disabled, use the toggle button to list all the default projects. For more information on the expected number of pods for each component and how it varies depending on the number of nodes, see the following table: Set filter for Running and Completed pods to verify that the following pods are in Running and Completed state: 2.5.2. Verifying the OpenShift Data Foundation cluster is healthy Procedure In the OpenShift Web Console, click Storage Data Foundation . In the Status card of the Overview tab, click Storage System and then click the storage system link from the pop up that appears. In the Status card of the Block and File tab, verify that the Storage Cluster has a green tick. In the Details card, verify that the cluster information is displayed. For more information on the health of the OpenShift Data Foundation cluster using the Block and File dashboard, see Monitoring OpenShift Data Foundation . 2.5.3. Verifying that the specific storage classes exist Procedure Click Storage Storage Classes from the left pane of the OpenShift Web Console. Verify that the following storage classes are created with the OpenShift Data Foundation cluster creation:

Commands:
oc annotate namespace storage-namespace openshift.io/node-selector=
vault secrets enable -path=odf kv
vault secrets enable -path=odf kv-v2
echo ' path "odf/*" { capabilities = ["create", "read", "update", "delete", "list"] } path "sys/mounts" { capabilities = ["read"] }'| vault policy write odf -
vault token create -policy=odf -format json
oc -n <storage-namespace> create serviceaccount <serviceaccount_name>
oc -n <storage-namespace> create serviceaccount odf-vault-auth
oc -n <storage-namespace> create clusterrolebinding vault-tokenreview-binding --clusterrole=system:auth-delegator --serviceaccount=openshift-storage:_<serviceaccount_name>_
oc -n <storage-namespace> create clusterrolebinding vault-tokenreview-binding --clusterrole=system:auth-delegator --serviceaccount=openshift-storage:odf-vault-auth
cat <<EOF | oc create -f - apiVersion: v1 kind: Secret metadata: name: odf-vault-auth-token namespace: <storage-namespace> annotations: kubernetes.io/service-account.name: <serviceaccount_name> type: kubernetes.io/service-account-token data: {} EOF
SA_JWT_TOKEN=USD(oc -n <storage_namespace> get secret odf-vault-auth-token -o jsonpath="{.data['token']}" | base64 --decode; echo) SA_CA_CRT=USD(oc -n <storage_namespace> get secret odf-vault-auth-token -o jsonpath="{.data['ca\.crt']}" | base64 --decode; echo)
OCP_HOST=USD(oc config view --minify --flatten -o jsonpath="{.clusters[0].cluster.server}")
oc proxy & proxy_pid=USD! issuer="USD( curl --silent http://127.0.0.1:8001/.well-known/openid-configuration | jq -r .issuer)" kill USDproxy_pid
vault auth enable kubernetes
vault write auth/kubernetes/config token_reviewer_jwt="USDSA_JWT_TOKEN" kubernetes_host="USDOCP_HOST" kubernetes_ca_cert="USDSA_CA_CRT" issuer="USDissuer"
vault write auth/kubernetes/config token_reviewer_jwt="USDSA_JWT_TOKEN" kubernetes_host="USDOCP_HOST" kubernetes_ca_cert="USDSA_CA_CRT"
vault secrets enable -path=odf kv
vault secrets enable -path=odf kv-v2
echo ' path "odf/*" { capabilities = ["create", "read", "update", "delete", "list"] } path "sys/mounts" { capabilities = ["read"] }'| vault policy write odf -
vault write auth/kubernetes/role/odf-rook-ceph-op bound_service_account_names=rook-ceph-system,rook-ceph-osd,noobaa bound_service_account_namespaces=<storage_namespace> policies=odf ttl=1440h
vault write auth/kubernetes/role/odf-rook-ceph-osd bound_service_account_names=rook-ceph-osd bound_service_account_namespaces=<storage_namespace> policies=odf ttl=1440h
patch storagecluster ocs-storagecluster -n openshift-storage --type=json -p '[{"op": "add", "path":"/spec/encryption/keyRotation/enable", "value": true}]'