Chapter 3. Deploying OpenShift Data Foundation on Red Hat OpenStack Platform in external mode
Chapter 3. Deploying OpenShift Data Foundation on Red Hat OpenStack Platform in external mode Red Hat OpenShift Data Foundation can use an externally hosted Red Hat Ceph Storage (RHCS) cluster as the storage provider on Red Hat OpenStack Platform. See Planning your deployment for more information. For instructions regarding how to install a RHCS cluster, see the installation guide . Follow these steps to deploy OpenShift Data Foundation in external mode: Install the OpenShift Data Foundation Operator . Create the OpenShift Data Foundation Cluster . 3.1. 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. 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 openshift-storage namespace (create openshift-storage namespace in this case): 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: Update Channel as stable-4.15 . Installation Mode as A specific namespace on the cluster . Installed Namespace as Operator recommended namespace openshift-storage . If Namespace openshift-storage does not exist, it is created during the operator installation. 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. 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. 3.2. Creating an OpenShift Data foundation Cluster for external mode You need to create a new OpenShift Data Foundation cluster after you install OpenShift Data Foundation operator on OpenShift Container Platform deployed on Red Hat OpenStack platform. Prerequisites Ensure the OpenShift Container Platform version is 4.12 or above before deploying OpenShift Data Foundation 4.12. OpenShift Data Foundation operator must be installed. For more information, see Installing OpenShift Data Foundation Operator using the Operator Hub . To check the supportability and interoperability of Red Hat Ceph Storage (RHCS) with Red Hat OpenShift Data Foundation in external mode, go to the lab Red Hat OpenShift Data Foundation Supportability and Interoperability Checker . Select Service Type as ODF as Self-Managed Service . Select appropriate Version from the drop down. On the Versions tab, click the Supported RHCS Compatibility tab. If you have updated the Red Hat Ceph Storage cluster from a version lower than 4.1.1 to the latest release and is not a freshly deployed cluster, you must manually set the application type for the CephFS pool on the Red Hat Ceph Storage cluster to enable CephFS PVC creation in external mode. For more details, see Troubleshooting CephFS PVC creation in external mode . Red Hat Ceph Storage must have Ceph Dashboard installed and configured. For more information, see Ceph Dashboard installation and access . Red Hat recommends that the external Red Hat Ceph Storage cluster has the PG Autoscaler enabled. For more information, see The placement group autoscaler section in the Red Hat Ceph Storage documentation. The external Ceph cluster should have an existing RBD pool pre-configured for use. If it does not exist, contact your Red Hat Ceph Storage administrator to create one before you move ahead with OpenShift Data Foundation deployment. Red Hat recommends to use a separate pool for each OpenShift Data Foundation cluster. Procedure Click Operators Installed Operators to view all the installed operators. Ensure that the Project selected is openshift-storage . Click OpenShift Data Foundation Create Instance link of Storage Cluster. Select Mode as External . By default, Internal is selected as deployment mode. Figure 3.1. Connect to external cluster section on Create Storage Cluster form In the Connect to external cluster section, click on the Download Script link to download the python script for extracting Ceph cluster details. For extracting the Red Hat Ceph Storage (RHCS) cluster details, contact the RHCS administrator to run the downloaded python script on a Red Hat Ceph Storage node with admin key . Run the following command on the RHCS node to view the list of available arguments. Important Use python instead of python3 if the Red Hat Ceph Storage 4.x cluster is deployed on Red Hat Enterprise Linux 7.x (RHEL 7.x) cluster. Note You can also run the script from inside a MON container (containerized deployment) or from a MON node (rpm deployment). To retrieve the external cluster details from the RHCS cluster, run the following command For example: In the above example, --rbd-data-pool-name is a mandatory parameter used for providing block storage in OpenShift Data Foundation. --rgw-endpoint is optional. Provide this parameter if object storage is to be provisioned through Ceph Rados Gateway for OpenShift Data Foundation. Provide the endpoint in the following format: <ip_address>:<port> --monitoring-endpoint is optional. It is the IP address of the active ceph-mgr reachable from the OpenShift Container Platform cluster. If not provided, the value is automatically populated. --monitoring-endpoint-port is optional. It is the port associated with the ceph-mgr Prometheus exporter specified by --monitoring-endpoint . If not provided, the value is automatically populated. -- run-as-user is an optional parameter used for providing a name for the Ceph user which is created by the script. If this parameter is not specified, a default user name client.healthchecker is created. The permissions for the new user is set as: caps: [mgr] allow command config caps: [mon] allow r, allow command quorum_status, allow command version caps: [osd] allow rwx pool= RGW_POOL_PREFIX.rgw.meta , allow r pool= .rgw.root , allow rw pool= RGW_POOL_PREFIX.rgw.control , allow rx pool= RGW_POOL_PREFIX.rgw.log , allow x pool= RGW_POOL_PREFIX.rgw.buckets.index Example of JSON output generated using the python script: Save the JSON output to a file with .json extension Note For OpenShift Data Foundation to work seamlessly, ensure that the parameters (RGW endpoint, CephFS details, RBD pool, and so on) to be uploaded using the JSON file remain unchanged on the RHCS external cluster after the storage cluster creation. Click External cluster metadata Browse to select and upload the JSON file. The content of the JSON file is populated and displayed in the text box. Figure 3.2. Json file content Click Create . The Create button is enabled only after you upload the .json file. Verification steps Verify that the final Status of the installed storage cluster shows as Phase: Ready with a green tick mark. Click Operators Installed Operators Storage Cluster link to view the storage cluster installation status. Alternatively, when you are on the Operator Details tab, you can click on the Storage Cluster tab to view the status. To verify that OpenShift Data Foundation, pods and StorageClass are successfully installed, see Verifying your external mode OpenShift Data Foundation installation . 3.3. Verifying your OpenShift Data Foundation installation for external mode Use this section to verify that OpenShift Data Foundation is deployed correctly. 3.3.1. Verifying the state of the pods Click Workloads Pods from the left pane of 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 Table 3.1, "Pods corresponding to OpenShift Data Foundation components" Verify that the following pods are in running state: Table 3.1. Pods corresponding to OpenShift Data Foundation components Component Corresponding pods OpenShift Data Foundation Operator ocs-operator-* (1 pod on any worker node) ocs-metrics-exporter-* (1 pod on any worker node) odf-operator-controller-manager-* (1 pod on any worker node) odf-console-* (1 pod on any worker node) csi-addons-controller-manager-* (1 pod on any worker node) Rook-ceph Operator rook-ceph-operator-* (1 pod on any worker node) Multicloud Object Gateway noobaa-operator-* (1 pod on any worker node) noobaa-core-* (1 pod on any worker node) noobaa-db-pg-* (1 pod on any worker node) noobaa-endpoint-* (1 pod on any worker node) CSI cephfs csi-cephfsplugin-* (1 pod on each worker node) csi-cephfsplugin-provisioner-* (2 pods distributed across worker nodes) Note If an MDS is not deployed in the external cluster, the csi-cephfsplugin pods will not be created. rbd csi-rbdplugin-* (1 pod on each worker node) csi-rbdplugin-provisioner-* (2 pods distributed across worker nodes) 3.3.2. Verifying that the OpenShift Data Foundation cluster is healthy 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 both Storage Cluster and Data Resiliency have a green tick. In the Details card, verify that the cluster information is displayed as follows. + Service Name:: OpenShift Data Foundation Cluster Name:: ocs-external-storagecluster Provider:: OpenStack Mode:: External Version:: ocs-operator-4.15.0 For more information on the health of OpenShift Data Foundation cluster using the Block and File dashboard, see Monitoring OpenShift Data Foundation . 3.3.3. Verifying that the Multicloud Object Gateway is healthy 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 Object tab, verify that both Object Service and Data Resiliency have a green tick. In the Details card, verify that the Multicloud Object Gateway (MCG) information is displayed. Note The RADOS Object Gateway is only listed in case RADOS Object Gateway endpoint details were included while deploying OpenShift Data Foundation in external mode. For more information on the health of OpenShift Data Foundation cluster using the object dashboard, see Monitoring OpenShift Data Foundation . 3.3.4. Verifying that the storage classes are created and listed 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: ocs-external-storagecluster-ceph-rbd ocs-external-storagecluster-ceph-rgw ocs-external-storagecluster-cephfs openshift-storage.noobaa.io Note If MDS is not deployed in the external cluster, ocs-external-storagecluster-cephfs storage class will not be created. If RGW is not deployed in the external cluster, the ocs-external-storagecluster-ceph-rgw storage class will not be created. For more information regarding MDS and RGW, see Red Hat Ceph Storage documentation 3.3.5. Verifying that Ceph cluster is connected Run the following command to verify if the OpenShift Data Foundation cluster is connected to the external Red Hat Ceph Storage cluster. 3.3.6. Verifying that storage cluster is ready Run the following command to verify if the storage cluster is ready and the External option is set to true. 3.4. Uninstalling OpenShift Data Foundation 3.4.1. Uninstalling OpenShift Data Foundation from external storage system Use the steps in this section to uninstall OpenShift Data Foundation. Uninstalling OpenShift Data Foundation does not remove the RBD pool from the external cluster, or uninstall the external Red Hat Ceph Storage cluster. Uninstall Annotations Annotations on the Storage Cluster are used to change the behavior of the uninstall process. To define the uninstall behavior, the following two annotations have been introduced in the storage cluster: uninstall.ocs.openshift.io/cleanup-policy: delete uninstall.ocs.openshift.io/mode: graceful Note The uninstall.ocs.openshift.io/cleanup-policy is not applicable for external mode. The below table provides information on the different values that can used with these annotations: Table 3.2. uninstall.ocs.openshift.io uninstall annotations descriptions Annotation Value Default Behavior cleanup-policy delete Yes Rook cleans up the physical drives and the DataDirHostPath cleanup-policy retain No Rook does not clean up the physical drives and the DataDirHostPath mode graceful Yes Rook and NooBaa pauses the uninstall process until the PVCs and the OBCs are removed by the administrator/user mode forced No Rook and NooBaa proceeds with uninstall even if PVCs/OBCs provisioned using Rook and NooBaa exist respectively You can change the uninstall mode by editing the value of the annotation by using the following commands: Prerequisites Ensure that the OpenShift Data Foundation cluster is in a healthy state. The uninstall process can fail when some of the pods are not terminated successfully due to insufficient resources or nodes. In case the cluster is in an unhealthy state, contact Red Hat Customer Support before uninstalling OpenShift Data Foundation. Ensure that applications are not consuming persistent volume claims (PVCs) or object bucket claims (OBCs) using the storage classes provided by OpenShift Data Foundation. Procedure Delete the volume snapshots that are using OpenShift Data Foundation. List the volume snapshots from all the namespaces From the output of the command, identify and delete the volume snapshots that are using OpenShift Data Foundation. Delete PVCs and OBCs that are using OpenShift Data Foundation. In the default uninstall mode (graceful), the uninstaller waits till all the PVCs and OBCs that use OpenShift Data Foundation are deleted. If you wish to delete the Storage Cluster without deleting the PVCs beforehand, you may set the uninstall mode annotation to "forced" and skip this step. Doing so will result in orphan PVCs and OBCs in the system. Delete OpenShift Container Platform monitoring stack PVCs using OpenShift Data Foundation. See Removing monitoring stack from OpenShift Data Foundation Delete OpenShift Container Platform Registry PVCs using OpenShift Data Foundation. Removing OpenShift Container Platform registry from OpenShift Data Foundation Delete OpenShift Container Platform logging PVCs using OpenShift Data Foundation. Removing the cluster logging operator from OpenShift Data Foundation Delete other PVCs and OBCs provisioned using OpenShift Data Foundation. Given below is a sample script to identify the PVCs and OBCs provisioned using OpenShift Data Foundation. The script ignores the PVCs and OBCs that are used internally by OpenShift Data Foundation. Delete the OBCs. Delete the PVCs. Ensure that you have removed any custom backing stores, bucket classes, and so on that are created in the cluster. Delete the Storage Cluster object and wait for the removal of the associated resources. Delete the namespace and wait until the deletion is complete. You will need to switch to another project if openshift-storage is the active project. For example: The project is deleted if the following command returns a NotFound error. Note While uninstalling OpenShift Data Foundation, if the namespace is not deleted completely and remains in Terminating state, perform the steps in Troubleshooting and deleting remaining resources during Uninstall to identify objects that are blocking the namespace from being terminated. Confirm all PVs provisioned using OpenShift Data Foundation are deleted. If there is any PV left in the Released state, delete it. Remove CustomResourceDefinitions . To ensure that OpenShift Data Foundation is uninstalled completely: In the OpenShift Container Platform Web Console, click Storage . Verify that OpenShift Data Foundation no longer appears under Storage. 3.4.2. Removing monitoring stack from OpenShift Data Foundation Use this section to clean up the monitoring stack from OpenShift Data Foundation. The PVCs that are created as a part of configuring the monitoring stack are in the openshift-monitoring namespace. Prerequisites PVCs are configured to use the OpenShift Container Platform monitoring stack. For information, see configuring monitoring stack . Procedure List the pods and PVCs that are currently running in the openshift-monitoring namespace. Edit the monitoring configmap . Remove any config sections that reference the OpenShift Data Foundation storage classes as shown in the following example and save it. Before editing After editing In this example, alertmanagerMain and prometheusK8s monitoring components are using the OpenShift Data Foundation PVCs. List the pods consuming the PVC. In this example, the alertmanagerMain and prometheusK8s pods that were consuming the PVCs are in the Terminating state. You can delete the PVCs once these pods are no longer using OpenShift Data Foundation PVC. Delete relevant PVCs. Make sure you delete all the PVCs that are consuming the storage classes. 3.4.3. Removing OpenShift Container Platform registry from OpenShift Data Foundation Use this section to clean up the OpenShift Container Platform registry from OpenShift Data Foundation. If you want to configure an alternative storage, see image registry The PVCs that are created as a part of configuring OpenShift Container Platform registry are in the openshift-image-registry namespace. Prerequisites The image registry should have been configured to use an OpenShift Data Foundation PVC. Procedure Edit the configs.imageregistry.operator.openshift.io object and remove the content in the storage section. Before editing After editing In this example, the PVC is called registry-cephfs-rwx-pvc , which is now safe to delete. Delete the PVC. 3.4.4. Removing the cluster logging operator from OpenShift Data Foundation Use this section to clean up the cluster logging operator from OpenShift Data Foundation. The Persistent Volume Claims (PVCs) that are created as a part of configuring the cluster logging operator are in the openshift-logging namespace. Prerequisites The cluster logging instance should have been configured to use the OpenShift Data Foundation PVCs. Procedure Remove the ClusterLogging instance in the namespace. The PVCs in the openshift-logging namespace are now safe to delete. Delete the PVCs. <pvc-name> Is the name of the PVC
oc annotate namespace openshift-storage openshift.io/node-selector= python3 ceph-external-cluster-details-exporter.py --help python3 ceph-external-cluster-details-exporter.py --rbd-data-pool-name <rbd block pool name> [optional arguments] python3 ceph-external-cluster-details-exporter.py --rbd-data-pool-name ceph-rbd --monitoring-endpoint xxx.xxx.xxx.xxx --monitoring-endpoint-port xxxx --rgw-endpoint xxx.xxx.xxx.xxx:xxxx --run-as-user client.ocs [{"name": "rook-ceph-mon-endpoints", "kind": "ConfigMap", "data": {"data": "xxx.xxx.xxx.xxx:xxxx", "maxMonId": "0", "mapping": "{}"}}, {"name": "rook-ceph-mon", "kind": "Secret", "data": {"admin-secret": "admin-secret", "fsid": "<fs-id>", "mon-secret": "mon-secret"}}, {"name": "rook-ceph-operator-creds", "kind": "Secret", "data": {"userID": "client.healthchecker", "userKey": "<user-key>"}}, {"name": "rook-csi-rbd-node", "kind": "Secret", "data": {"userID": "csi-rbd-node", "userKey": "<user-key>"}}, {"name": "ceph-rbd", "kind": "StorageClass", "data": {"pool": "ceph-rbd"}}, {"name": "monitoring-endpoint", "kind": "CephCluster", "data": {"MonitoringEndpoint": "xxx.xxx.xxx.xxx", "MonitoringPort": "xxxx"}}, {"name": "rook-csi-rbd-provisioner", "kind": "Secret", "data": {"userID": "csi-rbd-provisioner", "userKey": "<user-key>"}}, {"name": "rook-csi-cephfs-provisioner", "kind": "Secret", "data": {"adminID": "csi-cephfs-provisioner", "adminKey": "<admin-key>"}}, {"name": "rook-csi-cephfs-node", "kind": "Secret", "data": {"adminID": "csi-cephfs-node", "adminKey": "<admin-key>"}}, {"name": "cephfs", "kind": "StorageClass", "data": {"fsName": "cephfs", "pool": "cephfs_data"}}, {"name": "ceph-rgw", "kind": "StorageClass", "data": {"endpoint": "xxx.xxx.xxx.xxx:xxxx", "poolPrefix": "default"}}] oc get cephcluster -n openshift-storage NAME DATADIRHOSTPATH MONCOUNT AGE PHASE MESSAGE HEALTH ocs-external-storagecluster-cephcluster 31m15s Connected Cluster connected successfully HEALTH_OK oc get storagecluster -n openshift-storage NAME AGE PHASE EXTERNAL CREATED AT VERSION ocs-external-storagecluster 31m15s Ready true 2021-02-29T20:43:04Z 4.15.0 oc annotate storagecluster ocs-external-storagecluster -n openshift-storage uninstall.ocs.openshift.io/mode="forced" --overwrite storagecluster.ocs.openshift.io/ocs-external-storagecluster annotated oc get volumesnapshot --all-namespaces oc delete volumesnapshot <VOLUME-SNAPSHOT-NAME> -n <NAMESPACE> #!/bin/bash RBD_PROVISIONER="openshift-storage.rbd.csi.ceph.com" CEPHFS_PROVISIONER="openshift-storage.cephfs.csi.ceph.com" NOOBAA_PROVISIONER="openshift-storage.noobaa.io/obc" RGW_PROVISIONER="openshift-storage.ceph.rook.io/bucket" NOOBAA_DB_PVC="noobaa-db" NOOBAA_BACKINGSTORE_PVC="noobaa-default-backing-store-noobaa-pvc" Find all the OCS StorageClasses OCS_STORAGECLASSES=USD(oc get storageclasses | grep -e "USDRBD_PROVISIONER" -e "USDCEPHFS_PROVISIONER" -e "USDNOOBAA_PROVISIONER" -e "USDRGW_PROVISIONER" | awk '{print USD1}') List PVCs in each of the StorageClasses for SC in USDOCS_STORAGECLASSES do echo "======================================================================" echo "USDSC StorageClass PVCs and OBCs" echo "======================================================================" oc get pvc --all-namespaces --no-headers 2>/dev/null | grep USDSC | grep -v -e "USDNOOBAA_DB_PVC" -e "USDNOOBAA_BACKINGSTORE_PVC" oc get obc --all-namespaces --no-headers 2>/dev/null | grep USDSC echo done oc delete obc <obc name> -n <project name> oc delete pvc <pvc name> -n <project-name> oc delete -n openshift-storage storagesystem --all --wait=true oc project default oc delete project openshift-storage --wait=true --timeout=5m oc get project openshift-storage oc get pv oc delete pv <pv name> oc delete crd backingstores.noobaa.io bucketclasses.noobaa.io cephblockpools.ceph.rook.io cephclusters.ceph.rook.io cephfilesystems.ceph.rook.io cephnfses.ceph.rook.io cephobjectstores.ceph.rook.io cephobjectstoreusers.ceph.rook.io noobaas.noobaa.io ocsinitializations.ocs.openshift.io storageclusters.ocs.openshift.io cephclients.ceph.rook.io cephobjectrealms.ceph.rook.io cephobjectzonegroups.ceph.rook.io cephobjectzones.ceph.rook.io cephrbdmirrors.ceph.rook.io storagesystems.odf.openshift.io --wait=true --timeout=5m oc get pod,pvc -n openshift-monitoring NAME READY STATUS RESTARTS AGE pod/alertmanager-main-0 3/3 Running 0 8d pod/alertmanager-main-1 3/3 Running 0 8d pod/alertmanager-main-2 3/3 Running 0 8d pod/cluster-monitoring- operator-84457656d-pkrxm 1/1 Running 0 8d pod/grafana-79ccf6689f-2ll28 2/2 Running 0 8d pod/kube-state-metrics- 7d86fb966-rvd9w 3/3 Running 0 8d pod/node-exporter-25894 2/2 Running 0 8d pod/node-exporter-4dsd7 2/2 Running 0 8d pod/node-exporter-6p4zc 2/2 Running 0 8d pod/node-exporter-jbjvg 2/2 Running 0 8d pod/node-exporter-jj4t5 2/2 Running 0 6d18h pod/node-exporter-k856s 2/2 Running 0 6d18h pod/node-exporter-rf8gn 2/2 Running 0 8d pod/node-exporter-rmb5m 2/2 Running 0 6d18h pod/node-exporter-zj7kx 2/2 Running 0 8d pod/openshift-state-metrics- 59dbd4f654-4clng 3/3 Running 0 8d pod/prometheus-adapter- 5df5865596-k8dzn 1/1 Running 0 7d23h pod/prometheus-adapter- 5df5865596-n2gj9 1/1 Running 0 7d23h pod/prometheus-k8s-0 6/6 Running 1 8d pod/prometheus-k8s-1 6/6 Running 1 8d pod/prometheus-operator- 55cfb858c9-c4zd9 1/1 Running 0 6d21h pod/telemeter-client- 78fc8fc97d-2rgfp 3/3 Running 0 8d NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE persistentvolumeclaim/my-alertmanager-claim-alertmanager-main-0 Bound pvc-0d519c4f-15a5-11ea-baa0-026d231574aa 40Gi RWO ocs-external-storagecluster-ceph-rbd 8d persistentvolumeclaim/my-alertmanager-claim-alertmanager-main-1 Bound pvc-0d5a9825-15a5-11ea-baa0-026d231574aa 40Gi RWO ocs-external-storagecluster-ceph-rbd 8d persistentvolumeclaim/my-alertmanager-claim-alertmanager-main-2 Bound pvc-0d6413dc-15a5-11ea-baa0-026d231574aa 40Gi RWO ocs-external-storagecluster-ceph-rbd 8d persistentvolumeclaim/my-prometheus-claim-prometheus-k8s-0 Bound pvc-0b7c19b0-15a5-11ea-baa0-026d231574aa 40Gi RWO ocs-external-storagecluster-ceph-rbd 8d persistentvolumeclaim/my-prometheus-claim-prometheus-k8s-1 Bound pvc-0b8aed3f-15a5-11ea-baa0-026d231574aa 40Gi RWO ocs-external-storagecluster-ceph-rbd 8d oc -n openshift-monitoring edit configmap cluster-monitoring-config . . . apiVersion: v1 data: config.yaml: | alertmanagerMain: volumeClaimTemplate: metadata: name: my-alertmanager-claim spec: resources: requests: storage: 40Gi storageClassName: ocs-external-storagecluster-ceph-rbd prometheusK8s: volumeClaimTemplate: metadata: name: my-prometheus-claim spec: resources: requests: storage: 40Gi storageClassName: ocs-external-storagecluster-ceph-rbd kind: ConfigMap metadata: creationTimestamp: "2019-12-02T07:47:29Z" name: cluster-monitoring-config namespace: openshift-monitoring resourceVersion: "22110" selfLink: /api/v1/namespaces/openshift-monitoring/configmaps/cluster-monitoring-config uid: fd6d988b-14d7-11ea-84ff-066035b9efa8 . . . . . . apiVersion: v1 data: config.yaml: | kind: ConfigMap metadata: creationTimestamp: "2019-11-21T13:07:05Z" name: cluster-monitoring-config namespace: openshift-monitoring resourceVersion: "404352" selfLink: /api/v1/namespaces/openshift-monitoring/configmaps/cluster-monitoring-config uid: d12c796a-0c5f-11ea-9832-063cd735b81c . . . oc get pod,pvc -n openshift-monitoring NAME READY STATUS RESTARTS AGE pod/alertmanager-main-0 3/3 Terminating 0 10h pod/alertmanager-main-1 3/3 Terminating 0 10h pod/alertmanager-main-2 3/3 Terminating 0 10h pod/cluster-monitoring-operator-84cd9df668-zhjfn 1/1 Running 0 18h pod/grafana-5db6fd97f8-pmtbf 2/2 Running 0 10h pod/kube-state-metrics-895899678-z2r9q 3/3 Running 0 10h pod/node-exporter-4njxv 2/2 Running 0 18h pod/node-exporter-b8ckz 2/2 Running 0 11h pod/node-exporter-c2vp5 2/2 Running 0 18h pod/node-exporter-cq65n 2/2 Running 0 18h pod/node-exporter-f5sm7 2/2 Running 0 11h pod/node-exporter-f852c 2/2 Running 0 18h pod/node-exporter-l9zn7 2/2 Running 0 11h pod/node-exporter-ngbs8 2/2 Running 0 18h pod/node-exporter-rv4v9 2/2 Running 0 18h pod/openshift-state-metrics-77d5f699d8-69q5x 3/3 Running 0 10h pod/prometheus-adapter-765465b56-4tbxx 1/1 Running 0 10h pod/prometheus-adapter-765465b56-s2qg2 1/1 Running 0 10h pod/prometheus-k8s-0 6/6 Terminating 1 9m47s pod/prometheus-k8s-1 6/6 Terminating 1 9m47s pod/prometheus-operator-cbfd89f9-ldnwc 1/1 Running 0 43m pod/telemeter-client-7b5ddb4489-2xfpz 3/3 Running 0 10h NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE persistentvolumeclaim/ocs-alertmanager-claim-alertmanager-main-0 Bound pvc-2eb79797-1fed-11ea-93e1-0a88476a6a64 40Gi RWO ocs-external-storagecluster-ceph-rbd 19h persistentvolumeclaim/ocs-alertmanager-claim-alertmanager-main-1 Bound pvc-2ebeee54-1fed-11ea-93e1-0a88476a6a64 40Gi RWO ocs-external-storagecluster-ceph-rbd 19h persistentvolumeclaim/ocs-alertmanager-claim-alertmanager-main-2 Bound pvc-2ec6a9cf-1fed-11ea-93e1-0a88476a6a64 40Gi RWO ocs-external-storagecluster-ceph-rbd 19h persistentvolumeclaim/ocs-prometheus-claim-prometheus-k8s-0 Bound pvc-3162a80c-1fed-11ea-93e1-0a88476a6a64 40Gi RWO ocs-external-storagecluster-ceph-rbd 19h persistentvolumeclaim/ocs-prometheus-claim-prometheus-k8s-1 Bound pvc-316e99e2-1fed-11ea-93e1-0a88476a6a64 40Gi RWO ocs-external-storagecluster-ceph-rbd 19h oc delete -n openshift-monitoring pvc <pvc-name> --wait=true --timeout=5m oc edit configs.imageregistry.operator.openshift.io . . . storage: pvc: claim: registry-cephfs-rwx-pvc . . . . . . storage: emptyDir: {} . . . oc delete pvc <pvc-name> -n openshift-image-registry --wait=true --timeout=5m oc delete clusterlogging instance -n openshift-logging --wait=true --timeout=5m oc delete pvc <pvc-name> -n openshift-logging --wait=true --timeout=5m