Now there is no such documentation available, which makes it harder for users to deploy the image registry pvc backend volume in a custom availability zone.
Verified on 4.9.0-0.nightly-2021-07-27-181211 over OSP16.1 (RHOS-16.1-RHEL-8-20210604.n.0) (shiftstack) [stack@undercloud-0 ~]$ openstack availability zone list --volume +-----------+-------------+ | Zone Name | Zone Status | +-----------+-------------+ | nova | available | | cinderAZ0 | available | | cinderAZ1 | available | +-----------+-------------+ (shiftstack) [stack@undercloud-0 ~]$ cat <<\EOF | oc apply -f - apiVersion: storage.k8s.io/v1 kind: StorageClass metadata: name: custom-csi-storageclass provisioner: cinder.csi.openstack.org volumeBindingMode: WaitForFirstConsumer allowVolumeExpansion: true parameters: availability: cinderAZ1 EOF storageclass.storage.k8s.io/custom-csi-storageclass created (shiftstack) [stack@undercloud-0 ~]$ cat <<EOF | oc apply -f - apiVersion: v1 kind: PersistentVolumeClaim metadata: name: csi-pvc-imageregistry namespace: openshift-image-registry annotations: imageregistry.openshift.io: "true" spec: accessModes: - ReadWriteOnce volumeMode: Block resources: requests: storage: 100Gi storageClassName: custom-csi-storageclass EOF persistentvolumeclaim/csi-pvc-imageregistry created (shiftstack) [stack@undercloud-0 ~]$ cat registry-config.yaml apiVersion: imageregistry.operator.openshift.io/v1 kind: Config metadata: name: cluster spec: defaultRoute: true disableRedirect: true rolloutStrategy: Recreate replicas: 1 storage: managementState: Managed pvc: claim: csi-pvc-imageregistry swift: null status: null (reverse-i-search)`oc appl': oc apply -f registry-config.yaml (shiftstack) [stack@undercloud-0 ~]$ oc get configs.imageregistry.operator.openshift.io/cluster -o json | jq .status.conditions[0] { "lastTransitionTime": "2021-07-28T13:45:40Z", "reason": "PVC Exists", "status": "True", "type": "StorageExists" } (shiftstack) [stack@undercloud-0 ~]$ oc get pvc -n openshift-image-registry csi-pvc-imageregistry NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE csi-pvc-imageregistry Bound pvc-05506333-1aae-486d-9ede-f55f4527e5cd 100Gi RWO custom-csi-storageclass 20m (shiftstack) [stack@undercloud-0 ~]$ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.9.0-0.nightly-2021-07-27-181211 True False 49m Cluster version is 4.9.0-0.nightly-2021-07-27-181211 (shiftstack) [stack@undercloud-0 ~]$ openstack volume list +--------------------------------------+------------------------------------------+--------+------+------------------------------------------------------+ | ID | Name | Status | Size | Attached to | +--------------------------------------+------------------------------------------+--------+------+------------------------------------------------------+ | ec47ba62-2b66-400c-ae21-c68d0eaad3e1 | pvc-05506333-1aae-486d-9ede-f55f4527e5cd | in-use | 100 | Attached to ostest-bhssb-worker-2-7plmn on /dev/vdb | | 49b95b15-aa3b-4c9f-af15-028a43a002c3 | ostest-bhssb-worker-2-7plmn | in-use | 25 | Attached to ostest-bhssb-worker-2-7plmn on /dev/vda | | c090c175-215c-448a-94d0-227e02baf4f6 | ostest-bhssb-worker-1-6hgcn | in-use | 25 | Attached to ostest-bhssb-worker-1-6hgcn on /dev/vda | | e27f0599-dc58-42ef-8fbb-026c2cfb3a4a | ostest-bhssb-worker-0-qb6p8 | in-use | 25 | Attached to ostest-bhssb-worker-0-qb6p8 on /dev/vda | | ce83352c-3595-4cef-8b88-1d72f9c816d6 | ostest-bhssb-master-1 | in-use | 25 | Attached to ostest-bhssb-master-1 on /dev/vda | | ae2491ef-3f83-4146-90b1-c275179af076 | ostest-bhssb-master-2 | in-use | 25 | Attached to ostest-bhssb-master-2 on /dev/vda | | 244723bc-4e87-4385-ace8-a3051446da27 | ostest-bhssb-master-0 | in-use | 25 | Attached to ostest-bhssb-master-0 on /dev/vda | +--------------------------------------+------------------------------------------+--------+------+------------------------------------------------------+ (shiftstack) [stack@undercloud-0 ~]$ openstack volume show pvc-05506333-1aae-486d-9ede-f55f4527e5cd -c availability_zone +-------------------+-----------+ | Field | Value | +-------------------+-----------+ | availability_zone | cinderAZ1 | +-------------------+-----------+
Failed on 4.9.0-0.nightly-2021-07-27-181211. The image-registry pod is failing mounting the volume. The PVC should be volumeMode: Filesystem and not Block.
Removing the Triaged keyword because: * the QE automation assessment (flag qe_test_coverage) is missing
Verified on branch 4.11-release: https://github.com/openshift/installer/blob/release-4.11/docs/user/openstack/image_registry_with_custom_pvc_backends.md
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Important: OpenShift Container Platform 4.11.0 bug fix and security update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2022:5069