Ceph Cluster Migration for simplex system

This guide contains step by step instructions for manually migrating a StarlingX deployment with an all-in-one simplex Ceph Cluster to a containerized Ceph cluster deployed by Rook.

Introduction

In early releases of StarlingX, the backend storage cluster solution (Ceph) was deployed directly on the host platform. In an upcoming release of StarlingX, Ceph cluster will be containerized and managed by Rook, to improve operation and maintenance efficiency.

This guide describes a method to migrate the host-based Ceph cluster deployed with StarlingX early releses to the newly containerized Ceph clusters using an upcoming StarlingX release, while maintaining user data in OSDs.

The migration procedure maintains CEPH OSDs and data on OSDs. Although the procedure does result in hosted applications experiencing several minutes of service outage due to temporary loss of access to PVCs or virtual disks, due to the temporary loss of the ceph service.

Prepare for migration

StarlingX uses some HA mechanisms for critical service monitoring and recovering. To migrate Ceph monitor(s) and Ceph OSD(s), the first step is to disable monitoring and recovery for Ceph services. This avoids interrupting the migration procedure with service restarts.

Disable StarlingX HA for Ceph service

  1. Disable service manager’s monitoring of Ceph related service on both two controllers.

    sudo rm -f /etc/pmon.d/ceph.conf
sudo /usr/local/sbin/pmon-restart pmon_cmd_port
sudo sm-unmanage service  mgr-restful-plugin
Service (mgr-restful-plugin) is no longer being managed.
sudo sm-unmanage service  ceph-manager
Service (ceph-manager) is no longer being managed.
sudo sm-deprovision  service-group-member storage-monitoring-services ceph-manager
sudo sm-deprovision  service-group-member storage-monitoring-services mgr-restful-plugin

Enable Ceph service authentication

StarlingX disables Ceph authentication, but authentication is required for Rook. Before migration, enable authentication for each daemon.

  1. Enable authentication for Ceph mon and osd service.

    ceph config set mon.controller-0 auth_cluster_required cephx
ceph config set mon.controller-0 auth_supported cephx
ceph config set mon.controller-0 auth_service_required cephx
ceph config set mon.controller-0 auth_client_required cephx
ceph config set mgr.controller-0 auth_supported cephx
ceph config set mgr.controller-0 auth_cluster_required cephx
ceph config set mgr.controller-0 auth_client_required cephx
ceph config set mgr.controller-0 auth_service_required cephx
ceph config set osd.0 auth_supported cephx
ceph config set osd.0 auth_cluster_required cephx
ceph config set osd.0 auth_service_required cephx
ceph config set osd.0 auth_client_required cephx

  2. Generate client.admin key.

    ADMIN_KEY=$(ceph auth get-or-create-key client.admin mon 'allow *' osd 'allow *' mgr 'allow *' mds 'allow *')
echo $ADMIN_KEY
AQDRGqFea0cYERAAwYdhhle5zEbLLkYHWF+sDw==
MON_KEY=$(ceph auth get-or-create-key mon. mon 'allow *')
echo $MON_KEY
AQBbs79eM4/FMRAAbu4jwdBFVS1hOmlCdoCacQ==

Create configmap and secret for Rook deployment

Rook uses a configmap, rook-ceph-mon-endpoint, and a secret, rook-ceph-mon, to get cluster info. Create the configmap and secret with the commands below.

export NAMESPACE=kube-system
export ROOK_EXTERNAL_CEPH_MON_DATA=a=192.188.204.3:6789
export ROOK_EXTERNAL_FSID=$(ceph fsid)
export ROOK_EXTERNAL_CLUSTER_NAME=$NAMESPACE
export ROOK_EXTERNAL_MAX_MON_ID=0

kubectl -n "$NAMESPACE"  create secret generic rook-ceph-mon \
> --from-literal=cluster-name="$ROOK_EXTERNAL_CLUSTER_NAME" \
> --from-literal=fsid="$ROOK_EXTERNAL_FSID" \
> --from-literal=admin-secret="$ADMIN_KEY" \
> --from-literal=mon-secret="$MON_KEY"
secret/rook-ceph-mon created

kubectl -n "$NAMESPACE" create configmap rook-ceph-mon-endpoints \
> --from-literal=data="$ROOK_EXTERNAL_CEPH_MON_DATA" \
> --from-literal=mapping="$ROOK_EXTERNAL_MAPPING" \
> --from-literal=maxMonId="$ROOK_EXTERNAL_MAX_MON_ID"
configmap/rook-ceph-mon-endpoint created

Remove rbd-provisioner

The platform-integ-apps application deploys the helm chart rbd-provisioner. This chart is unnecessary after Rook is deployed, remove it with the command below.

sudo rm -rf /opt/platform/sysinv/20.01/.crushmap_applied
source /etc/platform/openrc
system application-remove platform-integ-apps

+---------------+----------------------------------+
| Property      | Value                            |
+---------------+----------------------------------+
| active        | True                             |
| app_version   | 1.0-8                            |
| created_at    | 2020-04-22T14:56:19.148562+00:00 |
| manifest_file | manifest.yaml                    |
| manifest_name | platform-integration-manifest    |
| name          | platform-integ-apps              |
| progress      | None                             |
| status        | removing                         |
| updated_at    | 2020-04-22T15:46:24.018090+00:00 |
+---------------+----------------------------------+

Remove storage backend ceph-store and clean up

After migration, remove the default storage backend ceph-store.

system storage-backend-list
+--------------------------------------+------------+---------+------------+------+----------+------------------------------------------------------------------------+
| uuid                                 | name       | backend | state      | task | services | capabilities                                                           |
+--------------------------------------+------------+---------+------------+------+----------+------------------------------------------------------------------------+
| 3fd0a407-dd8b-4a5c-9dec-8754d76956f4 | ceph-store | ceph    | configured | None | None     | min_replication: 1 replication: 2                                      |
|                                      |            |         |            |      |          |                                                                        |
+--------------------------------------+------------+---------+------------+------+----------+------------------------------------------------------------------------+
system storage-backend-delete 3fd0a407-dd8b-4a5c-9dec-8754d76956f4 --force

Update puppet system config.

sudo sysinv-puppet create-system-config

Remove script ceph.sh on both controllers.

sudo rm -rf /etc/services.d/controller/ceph.sh
sudo rm -rf /etc/services.d/worker/ceph.sh
sudo rm -rf /etc/services.d/storage/ceph.sh

Disable ceph osd on all storage hosts and create configmap for migration

  1. Login to controller host and run ceph-preshutdown.sh firstly.

    sudo ceph-preshutdown.sh

Login to controller-0, disable the Ceph osd service, and create a journal file.

  1. Disable the Ceph osd service.

    sudo service ceph -a stop osd.0
=== osd.0 ===
Stopping Ceph osd.0 on controller-0...kill  213077...
done
2020-04-26 23:36:56.988 7f1d647bb1c0 -1 journal do_read_entry(585007104): bad header magic
2020-04-26 23:36:56.988 7f1d647bb1c0 -1 journal do_read_entry(585007104): bad header magic
2020-04-26 23:36:56.994 7f1d647bb1c0 -1 flushed journal /var/lib/ceph/osd/ceph-0/journal for object store /var/lib/ceph/osd/ceph-0

  2. Remove the journal link and create a blank journal file.

    sudo rm -f /var/lib/ceph/osd/ceph-0/journal
sudo touch /var/lib/ceph/osd/ceph-0/journal
sudo dd if=/dev/zero of=/var/lib/ceph/osd/ceph-0/journal bs=1M count=1024
sudo ceph-osd --id 0  --mkjournal --no-mon-config
sudo umount /dev/sdc1

  3. Mount to host patch /var/lib/ceph/osd<n>, which can be accessed by the Rook osd pod.

    sudo mkdir -p /var/lib/ceph/ceph-0/osd0
sudo mount /dev/sdc1 /var/lib/ceph/ceph-0/osd0
sudo ls /var/lib/ceph/ceph-1/osd0 -l
total 1048640
-rw-r--r--   1 root root          3 Apr 26 12:57 active
-rw-r--r--   1 root root         37 Apr 26 12:57 ceph_fsid
drwxr-xr-x 388 root root      12288 Apr 27 00:01 current
-rw-r--r--   1 root root         37 Apr 26 12:57 fsid
-rw-r--r--   1 root root 1073741824 Apr 27 00:49 journal
-rw-r--r--   1 root root         37 Apr 26 12:57 journal_uuid
-rw-------   1 root root         56 Apr 26 12:57 keyring
-rw-r--r--   1 root root         21 Apr 26 12:57 magic
-rw-r--r--   1 root root          6 Apr 26 12:57 ready
-rw-r--r--   1 root root          4 Apr 26 12:57 store_version
-rw-r--r--   1 root root         53 Apr 26 12:57 superblock
-rw-r--r--   1 root root          0 Apr 26 12:57 sysvinit
-rw-r--r--   1 root root         10 Apr 26 12:57 type
-rw-r--r--   1 root root          2 Apr 26 12:57 wanttobe
-rw-r--r--   1 root root          2 Apr 26 12:57 whoami

Create a configmap with the name rook-ceph-osd-controller-0-config. In the configmap, specify the OSD data folder. In the example below, the Rook osd0 data path is /var/lib/ceph/osd0.

osd-dirs: '{"/var/lib/ceph/ceph-0/":0}'

system host-stor-list controller-0
+--------------------------------------+----------+-------+------------+--------------------------------------+-----------------------------+------------+--------------+-----------+
| uuid                                 | function | osdid | state      | idisk_uuid                           | journal_path                | journal_no | journal_size | tier_name |
|                                      |          |       |            |                                      |                             | de         | _gib         |           |
+--------------------------------------+----------+-------+------------+--------------------------------------+-----------------------------+------------+--------------+-----------+
| 21a90d60-2f1e-4f46-badc-afa7d9117622 | osd      | 0     | configured | a13c6ac9-9d59-4063-88dc-2847e8aded85 | /dev/disk/by-path/pci-0000: | /dev/sdc2  | 1            | storage   |
|                                      |          |       |            |                                      | 00:03.0-ata-3.0-part2       |            |              |           |
|                                      |          |       |            |                                      |                             |            |              |           |
+--------------------------------------+----------+-------+------------+--------------------------------------+-----------------------------+------------+--------------+-----------+

  1. Sample osd-configmap.yaml file.

    apiVersion: v1
kind: ConfigMap
metadata:
  name: rook-ceph-osd-controller-0-config
  namespace: kube-system
data:
  osd-dirs: '{"/var/lib/ceph/ceph-0":0}'

  2. Apply yaml file for configmap.

    kubectl apply -f osd-configmap.yaml
configmap/rook-ceph-osd-controller-0-config created
configmap/rook-ceph-osd-controller-1-config created

Ceph monitor data movement

For Ceph monitor migration, the Rook deployed monitor pod will read monitor data for host path /var/lib/ceph/mon-<id>/data. For example, if only one monitor pod is deployed, a monitor process named mon.a in the monitor pod will be created and monitor data will be in the host path /var/lib/ceph/mon-a/data.

Before migration, disable one monitor service and launch another monitor specified with the --mon-data /var/lib/ceph/mon-a/data parameter. This will migrate the monitor data to /var/lib/ceph/mon-a/data.

  1. Login to host controller-0 and disable service monitor.controller.

    sudo service ceph -a stop mon.controller
=== mon.controller-0 ===
Stopping Ceph mon.controller on controller-0...kill  291101...done

  2. Copy mon data to the /var/lib/ceph/mon-a/data folder.

    sudo mkdir -p /var/lib/ceph/mon-a/data/
sudo ceph-monstore-tool /var/lib/ceph/mon/ceph-controller/ store-copy /var/lib/ceph/mon-a/data/

  3. Update monmap in this copy of monitor data and update monitor info.

    sudo ceph-mon --extract-monmap monmap --mon-data /var/lib/ceph/mon-a/data/
2020-05-21 06:01:39.477 7f69d63b2140 -1 wrote monmap to monmap

monmaptool --print monmap
monmaptool: monmap file monmap
epoch 2
fsid 6c9e9e4b-599e-4a4f-931e-2c09bec74a2a
last_changed 2020-05-21 04:29:59.164965
created 2020-05-21 03:50:51.893155
0: 192.188.204.3:6789/0 mon.controller

sudo monmaptool --rm controller monmap
monmaptool: monmap file monmap
monmaptool: removing controller
monmaptool: writing epoch 2 to monmap (2 monitors)

sudo monmaptool --add a 192.188.204.3 monmap
monmaptool: monmap file monmap
monmaptool: writing epoch 2 to monmap (1 monitors)

monmaptool --print monmap
monmaptool: monmap file monmap
epoch 2
fsid 6c9e9e4b-599e-4a4f-931e-2c09bec74a2a
last_changed 2020-05-21 04:29:59.164965
created 2020-05-21 03:50:51.893155
0: 192.188.204.3:6789/0 mon.a

sudo ceph-mon --inject-monmap monmap  --mon-data /var/lib/ceph/mon-a/data/

Disable Ceph monitors and Ceph manager

Disable Ceph manager on host controller-0 and controller-1.

ps -aux | grep mgr
root       97971  0.0  0.0 241336 18488 ?        S<   03:54   0:02 /usr/bin/python /etc/init.d/mgr-restful-plugin start
root       97990  0.5  0.0 241468 18916 ?        S<   03:54   0:38 /usr/bin/python /etc/init.d/mgr-restful-plugin start
root      186145  1.2  0.3 716488 111328 ?       S<l  04:11   1:16 /usr/bin/ceph-mgr --cluster ceph --conf /etc/ceph/ceph.conf --id controller-0 -f
sysadmin  643748  0.0  0.0 112712   976 pts/0    S+   05:51   0:00 grep --color=auto mgr

sudo kill -9 97971  97990  186145

ps -aux | grep ceph
root       98044  0.2  0.1 352052 53556 ?        S<   03:54   0:15 python /usr/bin/ceph-manager --log-file=/var/log/ceph-manager.log --config-file=/etc/sysinv/sysinv.conf
root      647566  0.0  0.0 112220   668 ?        S<   05:52   0:00 /usr/bin/timeout 30 /usr/bin/ceph fsid
root      647567  1.0  0.0 810452 22320 ?        S<l  05:52   0:00 /usr/bin/python2.7 /usr/bin/ceph fsid
sysadmin  648519  0.0  0.0 112712   976 pts/0    S+   05:52   0:00 grep --color=auto ceph

sudo kill -9 98044

Reboot controller-0

Reboot and wait for host to be available. After reboot, mount osd data partition.

On controller-0

sudo mount /dev/sdc1 /var/lib/ceph/ceph-0/osd0

Deploy Rook helm chart

StarlingX creates a application for Rook deployment. After finishing the preparation steps above, run the application to deploy Rook.

Apply rook-ceph application

  1. Assign a label for Ceph monitor and Ceph manager pod.

    source /etc/platform/openrc
system host-label-assign controller-0 ceph-mon-placement=enabled
+-------------+--------------------------------------+
| Property    | Value                                |
+-------------+--------------------------------------+
| uuid        | ee117051-5422-4776-adc5-6c1e0a21e975 |
| host_uuid   | 7271854b-551a-4bb3-a4d6-4351024dd649 |
| label_key   | ceph-mon-placement                   |
| label_value | enabled                              |
+-------------+--------------------------------------+

system host-label-assign controller-0 ceph-mgr-placement=enabled
+-------------+--------------------------------------+
| Property    | Value                                |
+-------------+--------------------------------------+
| uuid        | 948788ab-0d5a-43ff-ba35-1b767356dcfe |
| host_uuid   | 7271854b-551a-4bb3-a4d6-4351024dd649 |
| label_key   | ceph-mgr-placement                   |
| label_value | enabled                              |
+-------------+--------------------------------------+

  2. The application rook-ceph-apps is a sysinv-managed application. First upload it, then apply the application.

    system application-apply rook-ceph-apps
+---------------+----------------------------------+
| Property      | Value                            |
+---------------+----------------------------------+
| active        | False                            |
| app_version   | 1.0-1                            |
| created_at    | 2020-04-22T14:56:20.893255+00:00 |
| manifest_file | manifest.yaml                    |
| manifest_name | rook-ceph-manifest               |
| name          | rook-ceph-apps                   |
| progress      | None                             |
| status        | applying                         |
| updated_at    | 2020-04-22T14:56:26.643693+00:00 |
+---------------+----------------------------------+

  3. Use the command kubectl get pods -n kube-system and wait for mon pod to launch.

    rook-ceph-mgr-a-79cc758465-ltjwb               1/1     Running            4          3m11s
rook-ceph-mon-a-64ccf46969-5k8kp               1/1     Running            5          3m13s
rook-ceph-operator-6fc8cfb68b-dsqkt            1/1     Running            0          5m
rook-ceph-tools-84c7fff88c-9g598               1/1     Running            0          4m12s

  4. Edit CephCluster to add osd directories config.

    storage:
  nodes:
  - config:
      storeType: filestore
    directories:
    - path: /var/lib/ceph/ceph-0
    name: controller-0
    resources: {}

  5. Wait for Rook pods to launch.

    rook-ceph-mgr-a-d98dd9559-ltlr7                1/1     Running     0          3m13s
rook-ceph-mon-a-659d8857cc-plbkt               1/1     Running     0          3m27s
rook-ceph-operator-6fc8cfb68b-km445            1/1     Running     0          6m22s
rook-ceph-osd-0-74f69cf96-h6qsj                1/1     Running     0          54s
rook-ceph-osd-prepare-controller-0-pgb6l       0/1     Completed   0          67s
rook-ceph-tools-84c7fff88c-px74q               1/1     Running     0          5m34s
rook-discover-cmfw7                            1/1     Running     0          5m37s
rook-discover-hpz4q                            1/1     Running     0          5m37s
rook-discover-n8j72                            1/1     Running     0          5m37s
rook-discover-njxsd                            1/1     Running     0          5m37s
rook-discover-wkhgq                            1/1     Running     0          5m37s
rook-discover-xm54j                            1/1     Running     0          5m37s
storage-init-rbd-provisioner-c9j5w             0/1     Completed   0          10h
storage-init-rook-ceph-provisioner-zjzcq       1/1     Running     0          47s

  6. Check the cluster status in the pod rook-tool.

    kubectl exec -it rook-ceph-tools-5778d7f6c-cj947 -- bash  -n kube-system
bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory
[root@compute-1 /]# ceph -s
  cluster:
    id:     6c9e9e4b-599e-4a4f-931e-2c09bec74a2a
    health: HEALTH_OK

  services:
    mon: 1 daemons, quorum a
    mgr: a(active)
    osd: 1 osds: 1 up, 1 in

  data:
    pools:   5 pools, 600 pgs
    objects: 0  objects, 0 B
    usage:   5.8 GiB used, 390 GiB / 396 GiB avail
    pgs:     600 active+clean

Migrate openstack application

Login to pod rook-ceph-tools, get generated key for client.admin and ceph.conf in container.

[sysadmin@controller-0 script(keystone_admin)]$ kubectl exec -it rook-ceph-tools-84c7fff88c-kgwbn bash -n kube-system
kubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl kubectl exec [POD] -- [COMMAND] instead.
bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory
[root@storage-1 /]# ceph -s
  cluster:
    id:     d4c0400e-06ed-4f97-ab8e-ed1bef427039
    health: HEALTH_OK

  services:
    mon: 1 daemons, quorum a
    mgr: a(active)
    osd: 1 osds: 1 up, 1 in

  data:
    pools:   5 pools, 600 pgs
    objects: 252  objects, 743 MiB
    usage:   5.8 GiB used, 390 GiB / 396 GiB avail
    pgs:     600 active+clean

[root@storage-1 /]# cat /etc/ceph/ceph.conf
[global]
mon_host = 192.188.204.3:6789

[client.admin]
keyring = /etc/ceph/keyring
[root@storage-1 /]# cat /etc/ceph/keyring
[client.admin]
key = AQDabgVf7CFhFxAAqY1L4X9XnUONzMWWJnxBFA==
[root@storage-1 /]# exit

On host controller-0 replace /etc/ceph/ceph.conf and /etc/ceph/keyring with content got from pod rook-ceph-tools.

Calculate the base64 of key and write to secret ceph-admin.

[sysadmin@controller-0 script(keystone_admin)]$ echo "AQDabgVf7CFhFxAAqY1L4X9XnUONzMWWJnxBFA==" | base64
QVFEYWJnVmY3Q0ZoRnhBQXFZMUw0WDlYblVPTnpNV1dKbnhCRkE9PQo=

[sysadmin@controller-0 script(keystone_admin)]$ kubectl edit secret ceph-admin -n kube-system
secret/ceph-admin edited

apiVersion: v1
data:
  key: QVFEYWJnVmY3Q0ZoRnhBQXFZMUw0WDlYblVPTnpNV1dKbnhCRkE9PQo=
kind: Secret

Create crush rule “kube-rbd” in pod rook-ceph-tools.

[sysadmin@controller-0 script(keystone_admin)]$ kubectl exec -it rook-ceph-tools-84c7fff88c-kgwbn bash -n kube-system
kubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl kubectl exec [POD] -- [COMMAND] instead.
bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory
[root@storage-1 /]#
[root@storage-1 /]#
[root@storage-1 /]# ceph osd crush rule create-replicated kube-rbd storage-tier host

Update every mariadb and rabbitmq pv and pvc provisioner from ceph.com/rbd to kube-system.rbd.csi.ceph.com in annotation.

[sysadmin@controller-0 script(keystone_admin)]$ kubectl get pv
NAME                                       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM                                                       STORAGECLASS   REASON   AGE
pvc-7bec7ab2-793f-405b-96f9-a3d2b855de17   5Gi        RWO            Delete           Bound    openstack/mysql-data-mariadb-server-0                       general                 147m
pvc-7c96fb7a-65dc-483f-94bc-aadefc685580   1Gi        RWO            Delete           Bound    openstack/rabbitmq-data-osh-openstack-rabbitmq-rabbitmq-0   general                 144m
[sysadmin@controller-0 script(keystone_admin)]$ kubectl edit pv pvc-7bec7ab2-793f-405b-96f9-a3d2b855de17
persistentvolume/pvc-7bec7ab2-793f-405b-96f9-a3d2b855de17 edited

[sysadmin@controller-0 script(keystone_admin)]$ kubectl edit pv pvc-7c96fb7a-65dc-483f-94bc-aadefc685580
persistentvolume/pvc-7c96fb7a-65dc-483f-94bc-aadefc685580 edited

apiVersion: v1
kind: PersistentVolume
metadata:
  annotations:
    pv.kubernetes.io/provisioned-by: kube-system.rbd.csi.ceph.com
    rbdProvisionerIdentity: kube-system.rbd.csi.ceph.com

[sysadmin@controller-0 script(keystone_admin)]$ kubectl get pvc -n openstack
NAME                                              STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
mysql-data-mariadb-server-0                       Bound    pvc-7bec7ab2-793f-405b-96f9-a3d2b855de17   5Gi        RWO            general        153m
rabbitmq-data-osh-openstack-rabbitmq-rabbitmq-0   Bound    pvc-7c96fb7a-65dc-483f-94bc-aadefc685580   1Gi        RWO            general        150m

[sysadmin@controller-0 script(keystone_admin)]$ kubectl edit pvc -n openstack mysql-data-mariadb-server-0
persistentvolumeclaim/mysql-data-mariadb-server-0 edited

[sysadmin@controller-0 script(keystone_admin)]$ kubectl edit pvc -n openstack rabbitmq-data-osh-openstack-rabbitmq-rabbitmq-0
persistentvolumeclaim/rabbitmq-data-osh-openstack-rabbitmq-rabbitmq-0 edited

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  annotations:
    pv.kubernetes.io/bind-completed: "yes"
    pv.kubernetes.io/bound-by-controller: "yes"
    volume.beta.kubernetes.io/storage-provisioner: kube-system.rbd.csi.ceph.com

Delete pod mariadb-server-0 osh-openstack-rabbitmq-rabbitmq-0

$ kubectl delete po mariadb-server-0 osh-openstack-rabbitmq-rabbitmq-0 -n openstack
pod "mariadb-server-0" deleted
pod "osh-openstack-rabbitmq-rabbitmq-0" deleted

Update override for cinder helm chart.

$ system helm-override-update stx-openstack cinder openstack --reuse-value --values cinder_override.yaml

$ controller-0:~$ cat cinder_override.yaml
conf:
  backends:
    ceph-store:
      image_volume_cache_enabled: "True"
      rbd_ceph_conf: /etc/ceph/ceph.conf
      rbd_pool: cinder-volumes
      rbd_user: cinder
      volume_backend_name: ceph-store
      volume_driver: cinder.volume.drivers.rbd.RBDDriver
    rbd1:
      volume_driver: ""

Apply application stx-openstack again.

[sysadmin@controller-0 script(keystone_admin)]$ system application-apply stx-openstack
+---------------+----------------------------------+
| Property      | Value                            |
+---------------+----------------------------------+
| active        | True                             |
| app_version   | 1.0-45                           |
| created_at    | 2020-07-08T05:47:24.019723+00:00 |
| manifest_file | stx-openstack.yaml               |
| manifest_name | armada-manifest                  |
| name          | stx-openstack                    |
| progress      | None                             |
| status        | applying                         |
| updated_at    | 2020-07-08T06:27:08.836258+00:00 |
+---------------+----------------------------------+
Please use 'system application-list' or 'system application-show stx-openstack' to view the current progress.
[sysadmin@controller-0 script(keystone_admin)]$

Check application apply successfully and all pods work well without error.