16.2.4. Creating ConfigMap objects for the image-based upgrade with the Lifecycle Agent

Procedure

1. Create the OADP Backup and Restore CRs for platform artifacts in the same namespace where the OADP Operator is installed, which is openshift-adp.

   1. If the target cluster is managed by RHACM, add the following PlatformBackupRestore.yaml file for backing up and restoring RHACM artifacts:

      apiVersion: velero.io/v1
      kind: Backup
      metadata:
        name: acm-klusterlet
        annotations:
          lca.openshift.io/apply-label: "apps/v1/deployments/open-cluster-management-agent/klusterlet,v1/secrets/open-cluster-management-agent/bootstrap-hub-kubeconfig,rbac.authorization.k8s.io/v1/clusterroles/klusterlet,v1/serviceaccounts/open-cluster-management-agent/klusterlet,scheduling.k8s.io/v1/priorityclasses/klusterlet-critical,rbac.authorization.k8s.io/v1/clusterroles/open-cluster-management:klusterlet-admin-aggregate-clusterrole,rbac.authorization.k8s.io/v1/clusterrolebindings/klusterlet,operator.open-cluster-management.io/v1/klusterlets/klusterlet,apiextensions.k8s.io/v1/customresourcedefinitions/klusterlets.operator.open-cluster-management.io,v1/secrets/open-cluster-management-agent/open-cluster-management-image-pull-credentials"
        labels:
          velero.io/storage-location: default
        namespace: openshift-adp
      spec:
        includedNamespaces:
        - open-cluster-management-agent
        includedClusterScopedResources:
        - klusterlets.operator.open-cluster-management.io
        - clusterroles.rbac.authorization.k8s.io
        - clusterrolebindings.rbac.authorization.k8s.io
        - priorityclasses.scheduling.k8s.io
        includedNamespaceScopedResources:
        - deployments
        - serviceaccounts
        - secrets
        excludedNamespaceScopedResources: []
      ---
      apiVersion: velero.io/v1
      kind: Restore
      metadata:
        name: acm-klusterlet
        namespace: openshift-adp
        labels:
          velero.io/storage-location: default
        annotations:
          lca.openshift.io/apply-wave: "1"
      spec:
        backupName:
          acm-klusterlet

      注意

      If your multiclusterHub CR does not have .spec.imagePullSecret defined and the secret does not exist on the open-cluster-management-agent namespace in your hub cluster, remove v1/secrets/open-cluster-management-agent/open-cluster-management-image-pull-credentials from the lca.openshift.io/apply-label annotation.

   2. If you created persistent volumes on your cluster through LVM Storage, add the following PlatformBackupRestoreLvms.yaml file for LVM Storage artifacts:

      apiVersion: velero.io/v1
      kind: Backup
      metadata:
        labels:
          velero.io/storage-location: default
        name: lvmcluster
        namespace: openshift-adp
      spec:
        includedNamespaces:
          - openshift-storage
        includedNamespaceScopedResources:
          - lvmclusters
          - lvmvolumegroups
          - lvmvolumegroupnodestatuses
      ---
      apiVersion: velero.io/v1
      kind: Restore
      metadata:
        name: lvmcluster
        namespace: openshift-adp
        labels:
          velero.io/storage-location: default
        annotations:
          lca.openshift.io/apply-wave: "2"
      spec:
        backupName:
          lvmcluster

      • The lca.openshift.io/apply-wave value must be lower than the values specified in the application Restore CRs.

2. If you need to restore applications after the upgrade, create the OADP Backup and Restore CRs for your application in the openshift-adp namespace.

   1. Create the OADP CRs for cluster-scoped application artifacts in the openshift-adp namespace, for example:

      apiVersion: velero.io/v1
      kind: Backup
      metadata:
        annotations:
          lca.openshift.io/apply-label: "apiextensions.k8s.io/v1/customresourcedefinitions/test.example.com,security.openshift.io/v1/securitycontextconstraints/test,rbac.authorization.k8s.io/v1/clusterroles/test-role,rbac.authorization.k8s.io/v1/clusterrolebindings/system:openshift:scc:test"
        name: backup-app-cluster-resources
        labels:
          velero.io/storage-location: default
        namespace: openshift-adp
      spec:
        includedClusterScopedResources:
        - customresourcedefinitions
        - securitycontextconstraints
        - clusterrolebindings
        - clusterroles
        excludedClusterScopedResources:
        - Namespace
      ---
      apiVersion: velero.io/v1
      kind: Restore
      metadata:
        name: test-app-cluster-resources
        namespace: openshift-adp
        labels:
          velero.io/storage-location: default
        annotations:
          lca.openshift.io/apply-wave: "3"
      spec:
        backupName:
          backup-app-cluster-resources

      • Replace the example resource names in the lca.openshift.io/apply-label field with your actual resources.
      • The value in the lca.openshift.io/apply-wave field must be higher than the value in the platform Restore CRs and lower than the value in the application namespace-scoped Restore CR.

   2. Create the OADP CRs for your namespace-scoped application artifacts.

      When using LSO, see the following example OADP CRs:

      apiVersion: velero.io/v1
      kind: Backup
      metadata:
        labels:
          velero.io/storage-location: default
        name: backup-app
        namespace: openshift-adp
      spec:
        includedNamespaces:
        - test
        includedNamespaceScopedResources:
        - secrets
        - persistentvolumeclaims
        - deployments
        - statefulsets
        - configmaps
        - cronjobs
        - services
        - job
        - poddisruptionbudgets
        - <application_custom_resources>
        excludedClusterScopedResources:
        - persistentVolumes
      ---
      apiVersion: velero.io/v1
      kind: Restore
      metadata:
        name: test-app
        namespace: openshift-adp
        labels:
          velero.io/storage-location: default
        annotations:
          lca.openshift.io/apply-wave: "4"
      spec:
        backupName:
          backup-app

      • Define custom resources for your application in the includedNamespaceScopedResources field.

      When using LVM Storage, see the following example OADP CRs:

      apiVersion: velero.io/v1
      kind: Backup
      metadata:
        labels:
          velero.io/storage-location: default
        name: backup-app
        namespace: openshift-adp
      spec:
        includedNamespaces:
        - test
        includedNamespaceScopedResources:
        - secrets
        - persistentvolumeclaims
        - deployments
        - statefulsets
        - configmaps
        - cronjobs
        - services
        - job
        - poddisruptionbudgets
        - <application_custom_resources>
        includedClusterScopedResources:
        - persistentVolumes
        - logicalvolumes.topolvm.io
        - volumesnapshotcontents
      ---
      apiVersion: velero.io/v1
      kind: Restore
      metadata:
        name: test-app
        namespace: openshift-adp
        labels:
          velero.io/storage-location: default
        annotations:
          lca.openshift.io/apply-wave: "4"
      spec:
        backupName:
          backup-app
        restorePVs: true
        restoreStatus:
          includedResources:
          - logicalvolumes

      where:

      • <application_custom_resources>: Define custom resources for your application.
      • persistentVolumes: Required field.
      • logicalvolumes.topolvm.io: Required field.
      • volumesnapshotcontents: Optional if you use LVM Storage volume snapshots.
      • restoreStatus.includedResources: Required field for restoring logical volumes.
      重要

      The same version of the applications must function on both the current and the target release of OpenShift Container Platform.

3. Create the ConfigMap object for your OADP CRs by running the following command:

   $ oc create configmap oadp-cm-example --from-file=example-oadp-resources.yaml=<path_to_oadp_crs> -n openshift-adp

4. Patch the ImageBasedUpgrade CR by running the following command:

   $ oc patch imagebasedupgrades.lca.openshift.io upgrade \
     -p='{"spec": {"oadpContent": [{"name": "oadp-cm-example", "namespace": "openshift-adp"}]}}' \
     --type=merge -n openshift-lifecycle-agent