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Ceph Upgrade

This guide documents steps showing Ceph version upgrade. The main goal of this document is to demostrate Ceph chart update without downtime for OSH components.

Test Scenario:

Upgrade Ceph component version from 12.2.4 to 12.2.5 without downtime to OSH components.

Setup:

  • 3 Node (VM based) env.

  • Followed OSH multinode guide steps to setup nodes and install K8s cluster

  • Followed OSH multinode guide steps upto Ceph install

Plan:

  1. Install Ceph charts (12.2.4) by updating Docker images in overrides.

  2. Install OSH components as per OSH multinode guide.

  3. Upgrade Ceph charts to version 12.2.5 by updating docker images in overrides.

Docker Images:

  1. Ceph Luminous point release images for Ceph components

Ceph 12.2.4: ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64
Ceph 12.2.5: ceph/daemon:master-a8d20ed-luminous-ubuntu-16.04-x86_64
  1. Ceph RBD provisioner docker images.

quay.io/external_storage/rbd-provisioner:v0.1.0
quay.io/external_storage/rbd-provisioner:v0.1.1
  1. Ceph Cephfs provisioner docker images.

quay.io/external_storage/cephfs-provisioner:v0.1.1
quay.io/external_storage/cephfs-provisioner:v0.1.2

Steps:

참고

Follow all steps from OSH multinode guide with below changes.

  1. Install Ceph charts (version 12.2.4)

Update ceph install script ./tools/deployment/multinode/030-ceph.sh to add images: section in overrides as shown below.

참고

OSD count is set to 3 based on env setup.

참고

Following is a partial part from script to show changes.

tee /tmp/ceph.yaml << EOF
  ...
    network:
      public: ${CEPH_PUBLIC_NETWORK}
      cluster: ${CEPH_CLUSTER_NETWORK}
  images:
    tags:
      ceph_bootstrap: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
      ceph_config_helper: 'docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial'
      ceph_rbd_pool: 'docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial'
      ceph_mon_check: 'docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial'
      ceph_mon: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
      ceph_osd: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
      ceph_mds: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
      ceph_mgr: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
      ceph_rgw: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
      ceph_cephfs_provisioner: 'quay.io/external_storage/cephfs-provisioner:v0.1.1'
      ceph_rbd_provisioner: 'quay.io/external_storage/rbd-provisioner:v0.1.0'
    conf:
      ceph:
        global:
          fsid: ${CEPH_FS_ID}
      rgw_ks:
        enabled: true
      pool:
        crush:
          tunables: ${CRUSH_TUNABLES}
        target:
        # NOTE(portdirect): 5 nodes, with one osd per node
          osd: 5
          pg_per_osd: 100
  ...
EOF

참고

ceph_bootstrap, ceph-config_helper and ceph_rbs_pool images are used for jobs. ceph_mon_check has one script that is stable so no need to upgrade.

  1. Deploy and Validate Ceph

+ kubectl exec -n ceph ceph-mon-4c8xs -- ceph -s
  cluster:
    id:     39061799-d25e-4f3b-8c1a-a350e4c6d06c
    health: HEALTH_OK

  services:
    mon: 3 daemons, quorum mnode1,mnode2,mnode3
    mgr: mnode2(active), standbys: mnode3
    mds: cephfs-1/1/1 up  {0=mds-ceph-mds-745576757f-4vdn4=up:active}, 1 up:standby
    osd: 3 osds: 3 up, 3 in
    rgw: 2 daemons active

  data:
    pools:   18 pools, 93 pgs
    objects: 208 objects, 3359 bytes
    usage:   72175 MB used, 75739 MB / 144 GB avail
    pgs:     93 active+clean
  1. Check Ceph Pods

ubuntu@mnode1:/opt/openstack-helm$ kubectl get pods -n ceph
NAME                                       READY     STATUS      RESTARTS   AGE
ceph-bootstrap-s4jkx                       0/1       Completed   0          10m
ceph-cephfs-client-key-generator-6bmzz     0/1       Completed   0          3m
ceph-cephfs-provisioner-784c6f9d59-2z6ww   1/1       Running     0          3m
ceph-cephfs-provisioner-784c6f9d59-sg8wv   1/1       Running     0          3m
ceph-mds-745576757f-4vdn4                  1/1       Running     0          6m
ceph-mds-745576757f-bxdcs                  1/1       Running     0          6m
ceph-mds-keyring-generator-f5lxf           0/1       Completed   0          10m
ceph-mgr-86bdc7c64b-7ptr4                  1/1       Running     0          6m
ceph-mgr-86bdc7c64b-xgplj                  1/1       Running     0          6m
ceph-mgr-keyring-generator-w7nxq           0/1       Completed   0          10m
ceph-mon-4c8xs                             1/1       Running     0          10m
ceph-mon-check-d85994946-zzwb4             1/1       Running     0          10m
ceph-mon-keyring-generator-jdgfw           0/1       Completed   0          10m
ceph-mon-kht8d                             1/1       Running     0          10m
ceph-mon-mkpmm                             1/1       Running     0          10m
ceph-osd-default-83945928-7jz4s            1/1       Running     0          8m
ceph-osd-default-83945928-bh82j            1/1       Running     0          8m
ceph-osd-default-83945928-t9szk            1/1       Running     0          8m
ceph-osd-keyring-generator-6rg65           0/1       Completed   0          10m
ceph-rbd-pool-z8vlc                        0/1       Completed   0          6m
ceph-rbd-provisioner-84665cb84f-6s55r      1/1       Running     0          3m
ceph-rbd-provisioner-84665cb84f-chwhd      1/1       Running     0          3m
ceph-rgw-74559877-h56xs                    1/1       Running     0          6m
ceph-rgw-74559877-pfjr5                    1/1       Running     0          6m
ceph-rgw-keyring-generator-6rwct           0/1       Completed   0          10m
ceph-storage-keys-generator-bgj2t          0/1       Completed   0          10m
ingress-796d8cf8d6-nzrd2                   1/1       Running     0          11m
ingress-796d8cf8d6-qqvq9                   1/1       Running     0          11m
ingress-error-pages-54454dc79b-d5r5w       1/1       Running     0          11m
ingress-error-pages-54454dc79b-gfpqv       1/1       Running     0          11m
  1. Check version of each Ceph components.

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-mon-4c8xs -- ceph -v
ceph version 12.2.4 (52085d5249a80c5f5121a76d6288429f35e4e77b) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-osd-default-83945928-7jz4s -- ceph -v
ceph version 12.2.4 (52085d5249a80c5f5121a76d6288429f35e4e77b) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-mgr-86bdc7c64b-7ptr4 -- ceph -v
ceph version 12.2.4 (52085d5249a80c5f5121a76d6288429f35e4e77b) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-mds-745576757f-4vdn4 -- ceph -v
ceph version 12.2.4 (52085d5249a80c5f5121a76d6288429f35e4e77b) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-rgw-74559877-h56xs -- ceph -v
ceph version 12.2.4 (52085d5249a80c5f5121a76d6288429f35e4e77b) luminous (stable)
  1. Check which images Provisionors and Mon-Check PODs are using

참고

Showing partial output from kubectl describe command to show which image is Docker container is using

ubuntu@mnode1:~$ kubectl describe pod -n ceph ceph-cephfs-provisioner-784c6f9d59-2z6ww

Containers:
  ceph-cephfs-provisioner:
    Container ID:  docker://98ed65617f6c4b60fe60d94b8707e52e0dd4c87791e7d72789a0cb603fa80e2c
    Image:         quay.io/external_storage/cephfs-provisioner:v0.1.1
ubuntu@mnode1:~$ kubectl describe pod -n ceph ceph-rbd-provisioner-84665cb84f-6s55r

Containers:
  ceph-rbd-provisioner:
    Container ID:  docker://383be3d653cecf4cbf0c3c7509774d39dce54102309f1f0bdb07cdc2441e5e47
    Image:         quay.io/external_storage/rbd-provisioner:v0.1.0
ubuntu@mnode1:~$ kubectl describe pod -n ceph ceph-mon-check-d85994946-zzwb4

Containers:
  ceph-mon:
    Container ID:  docker://d5a3396f99704038ab8ef6bfe329013ed46472ebb8e26dddc140b621329f0f92
    Image:         docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial
  1. Install Openstack charts

Continue with OSH multinode guide to install other Openstack charts.

  1. Capture Ceph pods statuses.

NAME                                       READY     STATUS      RESTARTS   AGE
ceph-bootstrap-s4jkx                       0/1       Completed   0          2h
ceph-cephfs-client-key-generator-6bmzz     0/1       Completed   0          2h
ceph-cephfs-provisioner-784c6f9d59-2z6ww   1/1       Running     0          2h
ceph-cephfs-provisioner-784c6f9d59-sg8wv   1/1       Running     0          2h
ceph-mds-745576757f-4vdn4                  1/1       Running     0          2h
ceph-mds-745576757f-bxdcs                  1/1       Running     0          2h
ceph-mds-keyring-generator-f5lxf           0/1       Completed   0          2h
ceph-mgr-86bdc7c64b-7ptr4                  1/1       Running     0          2h
ceph-mgr-86bdc7c64b-xgplj                  1/1       Running     0          2h
ceph-mgr-keyring-generator-w7nxq           0/1       Completed   0          2h
ceph-mon-4c8xs                             1/1       Running     0          2h
ceph-mon-check-d85994946-zzwb4             1/1       Running     0          2h
ceph-mon-keyring-generator-jdgfw           0/1       Completed   0          2h
ceph-mon-kht8d                             1/1       Running     0          2h
ceph-mon-mkpmm                             1/1       Running     0          2h
ceph-osd-default-83945928-7jz4s            1/1       Running     0          2h
ceph-osd-default-83945928-bh82j            1/1       Running     0          2h
ceph-osd-default-83945928-t9szk            1/1       Running     0          2h
ceph-osd-keyring-generator-6rg65           0/1       Completed   0          2h
ceph-rbd-pool-z8vlc                        0/1       Completed   0          2h
ceph-rbd-provisioner-84665cb84f-6s55r      1/1       Running     0          2h
ceph-rbd-provisioner-84665cb84f-chwhd      1/1       Running     0          2h
ceph-rgw-74559877-h56xs                    1/1       Running     0          2h
ceph-rgw-74559877-pfjr5                    1/1       Running     0          2h
ceph-rgw-keyring-generator-6rwct           0/1       Completed   0          2h
ceph-storage-keys-generator-bgj2t          0/1       Completed   0          2h
ingress-796d8cf8d6-nzrd2                   1/1       Running     0          2h
ingress-796d8cf8d6-qqvq9                   1/1       Running     0          2h
ingress-error-pages-54454dc79b-d5r5w       1/1       Running     0          2h
ingress-error-pages-54454dc79b-gfpqv       1/1       Running     0          2h
  1. Capture Openstack pods statuses.

NAME                                           READY     STATUS    RESTARTS   AGE
cinder-api-67495cdffc-24fhs                    1/1       Running   0          51m
cinder-api-67495cdffc-kz5fn                    1/1       Running   0          51m
cinder-backup-65b7bd9b79-8n9pb                 1/1       Running   0          51m
cinder-scheduler-9ddbb7878-rbt4l               1/1       Running   0          51m
cinder-volume-75bf4cc9bd-6298x                 1/1       Running   0          51m
glance-api-68f6df4d5d-q84hs                    1/1       Running   0          1h
glance-api-68f6df4d5d-qbfwb                    1/1       Running   0          1h
glance-registry-5957979dc5-h54tc               1/1       Running   0          1h
glance-registry-5957979dc5-sglg7               1/1       Running   0          1h
ingress-7b4bc84cdd-84dtj                       1/1       Running   0          2h
ingress-7b4bc84cdd-ws45r                       1/1       Running   0          2h
ingress-error-pages-586c7f86d6-dlpm2           1/1       Running   0          2h
ingress-error-pages-586c7f86d6-w7cj2           1/1       Running   0          2h
keystone-api-7d9759db58-dz6kt                  1/1       Running   0          1h
keystone-api-7d9759db58-pvsc2                  1/1       Running   0          1h
libvirt-f7ngc                                  1/1       Running   0          24m
libvirt-gtjc7                                  1/1       Running   0          24m
libvirt-qmwf5                                  1/1       Running   0          24m
mariadb-ingress-84894687fd-m8fkr               1/1       Running   0          1h
mariadb-ingress-error-pages-78fb865f84-c6th5   1/1       Running   0          1h
mariadb-server-0                               1/1       Running   0          1h
memcached-memcached-5db74ddfd5-qjgvz           1/1       Running   0          1h
neutron-dhcp-agent-default-9bpxc               1/1       Running   0          16m
neutron-l3-agent-default-47n7k                 1/1       Running   0          16m
neutron-metadata-agent-default-hp46c           1/1       Running   0          16m
neutron-ovs-agent-default-6sbtg                1/1       Running   0          16m
neutron-ovs-agent-default-nl8fr                1/1       Running   0          16m
neutron-ovs-agent-default-tvmc4                1/1       Running   0          16m
neutron-server-775c765d9f-cx2gk                1/1       Running   0          16m
neutron-server-775c765d9f-ll5ml                1/1       Running   0          16m
nova-api-metadata-557c68cb46-8f8d5             1/1       Running   1          16m
nova-api-osapi-7658bfd554-7fbtx                1/1       Running   0          16m
nova-api-osapi-7658bfd554-v7qcr                1/1       Running   0          16m
nova-compute-default-g2jbd                     1/1       Running   0          16m
nova-compute-default-ljcbc                     1/1       Running   0          16m
nova-compute-default-mr24c                     1/1       Running   0          16m
nova-conductor-64457cf995-lbv65                1/1       Running   0          16m
nova-conductor-64457cf995-zts48                1/1       Running   0          16m
nova-consoleauth-c595f68bc-2269j               1/1       Running   0          16m
nova-consoleauth-c595f68bc-tbmcn               1/1       Running   0          16m
nova-novncproxy-54467b9c66-vp49j               1/1       Running   0          16m
nova-placement-api-655cd9fcf6-5p5sc            1/1       Running   0          16m
nova-placement-api-655cd9fcf6-r46dk            1/1       Running   0          16m
nova-scheduler-59647c6d9f-vm78p                1/1       Running   0          16m
openvswitch-db-cv47r                           1/1       Running   0          41m
openvswitch-db-dq7rc                           1/1       Running   0          41m
openvswitch-db-znp6l                           1/1       Running   0          41m
openvswitch-vswitchd-8p2j5                     1/1       Running   0          41m
openvswitch-vswitchd-v9rrp                     1/1       Running   0          41m
openvswitch-vswitchd-wlgkx                     1/1       Running   0          41m
rabbitmq-rabbitmq-0                            1/1       Running   0          1h
rabbitmq-rabbitmq-1                            1/1       Running   0          1h
rabbitmq-rabbitmq-2                            1/1       Running   0          1h
  1. Upgrade Ceph charts to update version

Use Ceph override file ceph.yaml that was generated previously and update images section as below

cp /tmp/ceph.yaml ceph-update.yaml

Update, image section in new overrides ceph-update.yaml as shown below

images:
  tags:
    ceph_bootstrap: 'docker.io/ceph/daemon:master-0351083-luminous-ubuntu-16.04-x86_64'
    ceph_config_helper: 'docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial'
    ceph_rbd_pool: 'docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial'
    ceph_mon_check: 'docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial'
    ceph_mon: 'docker.io/ceph/daemon:master-a8d20ed-luminous-ubuntu-16.04-x86_64'
    ceph_osd: 'docker.io/ceph/daemon:master-a8d20ed-luminous-ubuntu-16.04-x86_64'
    ceph_mds: 'docker.io/ceph/daemon:master-a8d20ed-luminous-ubuntu-16.04-x86_64'
    ceph_mgr: 'docker.io/ceph/daemon:master-a8d20ed-luminous-ubuntu-16.04-x86_64'
    ceph_rgw: 'docker.io/ceph/daemon:master-a8d20ed-luminous-ubuntu-16.04-x86_64'
    ceph_cephfs_provisioner: 'quay.io/external_storage/cephfs-provisioner:v0.1.2'
    ceph_rbd_provisioner: 'quay.io/external_storage/rbd-provisioner:v0.1.1'
  1. Update Ceph Mon chart with new overrides

helm upgrade ceph-mon ./ceph-mon --values=ceph-update.yaml

series of console outputs:

ceph-mon-4c8xs                             0/1       Terminating   0          2h
ceph-mon-check-d85994946-zzwb4             1/1       Running       0          2h
ceph-mon-keyring-generator-jdgfw           0/1       Completed     0          2h
ceph-mon-kht8d                             1/1       Running       0          2h
ceph-mon-mkpmm                             1/1       Running       0          2h
ceph-mon-7zxjs                             1/1       Running     1          4m
ceph-mon-84xt2                             1/1       Running     1          2m
ceph-mon-check-d85994946-zzwb4             1/1       Running     0          2h
ceph-mon-fsrv4                             1/1       Running     1          6m
ceph-mon-keyring-generator-jdgfw           0/1       Completed   0          2h

Results: Mon pods got updated one by one (rolling updates). Each Mon pod got respawn and was in 1/1 running state before next Mon pod got updated. Each Mon pod got restarted. Other ceph pods were not affected with this update. No interruption to OSH pods.

  1. Update Ceph OSD chart with new overrides:

helm upgrade ceph-osd ./ceph-osd --values=ceph-update.yaml

series of console outputs:

ceph-osd-default-83945928-7jz4s            0/1       Terminating   0          2h
ceph-osd-default-83945928-bh82j            1/1       Running       0          2h
ceph-osd-default-83945928-t9szk            1/1       Running       0          2h
ceph-osd-keyring-generator-6rg65           0/1       Completed     0          2h
ceph-osd-default-83945928-l84tl            1/1       Running     0          9m
ceph-osd-default-83945928-twzmk            1/1       Running     0          6m
ceph-osd-default-83945928-wxpmh            1/1       Running     0          11m
ceph-osd-keyring-generator-6rg65           0/1       Completed   0          2h

Results: Rolling updates (one pod at a time). Other ceph pods are running. No interruption to OSH pods.

  1. Update Ceph Client chart with new overrides:

helm upgrade ceph-client ./ceph-client --values=ceph-update.yaml

ceph-mds-5fdcb5c64c-t9nmb                  0/1       Init:0/2      0          11s
ceph-mds-745576757f-4vdn4                  1/1       Running       0          2h
ceph-mds-745576757f-bxdcs                  1/1       Running       0          2h
ceph-mgr-86bdc7c64b-7ptr4                  1/1       Terminating   0          2h
ceph-mgr-86bdc7c64b-xgplj                  0/1       Terminating   0          2h
ceph-rgw-57c68b7cd5-vxcc5                  0/1       Init:1/3      0          11s
ceph-rgw-74559877-h56xs                    1/1       Running       0          2h
ceph-rgw-74559877-pfjr5                    1/1       Running       0          2h
ceph-mds-5fdcb5c64c-c52xq                  1/1       Running     0          2m
ceph-mds-5fdcb5c64c-t9nmb                  1/1       Running     0          2m
ceph-mgr-654f97cbfd-9kcvb                  1/1       Running     0          1m
ceph-mgr-654f97cbfd-gzb7k                  1/1       Running     0          1m
ceph-rgw-57c68b7cd5-vxcc5                  1/1       Running     0          2m
ceph-rgw-57c68b7cd5-zmdqb                  1/1       Running     0          2m

Results: Rolling updates (one pod at a time). Other ceph pods are running. No interruption to OSH pods.

  1. Update Ceph Provisioners chart with new overrides:

helm upgrade ceph-provisioners ./ceph-provisioners --values=ceph-update.yaml

ceph-cephfs-provisioner-784c6f9d59-2z6ww   0/1       Terminating   0          2h
ceph-cephfs-provisioner-784c6f9d59-sg8wv   0/1       Terminating   0          2h
ceph-rbd-provisioner-84665cb84f-6s55r      0/1       Terminating   0          2h
ceph-rbd-provisioner-84665cb84f-chwhd      0/1       Terminating   0          2h
ceph-cephfs-provisioner-65ffbd47c4-cl4hj   1/1       Running     0          1m
ceph-cephfs-provisioner-65ffbd47c4-qrtg2   1/1       Running     0          1m
ceph-rbd-provisioner-5bfb577ffd-b7tkx      1/1       Running     0          1m
ceph-rbd-provisioner-5bfb577ffd-m6gg6      1/1       Running     0          1m

Results: All provisioner pods got terminated at once (same time). Other ceph pods are running. No interruption to OSH pods.

  1. Capture final Ceph pod statuses:

ceph-bootstrap-s4jkx                       0/1       Completed   0          2h
ceph-cephfs-client-key-generator-6bmzz     0/1       Completed   0          2h
ceph-cephfs-provisioner-65ffbd47c4-cl4hj   1/1       Running     0          2m
ceph-cephfs-provisioner-65ffbd47c4-qrtg2   1/1       Running     0          2m
ceph-mds-5fdcb5c64c-c52xq                  1/1       Running     0          8m
ceph-mds-5fdcb5c64c-t9nmb                  1/1       Running     0          8m
ceph-mds-keyring-generator-f5lxf           0/1       Completed   0          2h
ceph-mgr-654f97cbfd-9kcvb                  1/1       Running     0          8m
ceph-mgr-654f97cbfd-gzb7k                  1/1       Running     0          8m
ceph-mgr-keyring-generator-w7nxq           0/1       Completed   0          2h
ceph-mon-7zxjs                             1/1       Running     1          27m
ceph-mon-84xt2                             1/1       Running     1          24m
ceph-mon-check-d85994946-zzwb4             1/1       Running     0          2h
ceph-mon-fsrv4                             1/1       Running     1          29m
ceph-mon-keyring-generator-jdgfw           0/1       Completed   0          2h
ceph-osd-default-83945928-l84tl            1/1       Running     0          19m
ceph-osd-default-83945928-twzmk            1/1       Running     0          16m
ceph-osd-default-83945928-wxpmh            1/1       Running     0          21m
ceph-osd-keyring-generator-6rg65           0/1       Completed   0          2h
ceph-rbd-pool-z8vlc                        0/1       Completed   0          2h
ceph-rbd-provisioner-5bfb577ffd-b7tkx      1/1       Running     0          2m
ceph-rbd-provisioner-5bfb577ffd-m6gg6      1/1       Running     0          2m
ceph-rgw-57c68b7cd5-vxcc5                  1/1       Running     0          8m
ceph-rgw-57c68b7cd5-zmdqb                  1/1       Running     0          8m
ceph-rgw-keyring-generator-6rwct           0/1       Completed   0          2h
ceph-storage-keys-generator-bgj2t          0/1       Completed   0          2h
ingress-796d8cf8d6-nzrd2                   1/1       Running     0          2h
ingress-796d8cf8d6-qqvq9                   1/1       Running     0          2h
ingress-error-pages-54454dc79b-d5r5w       1/1       Running     0          2h
ingress-error-pages-54454dc79b-gfpqv       1/1       Running     0          2h
  1. Capture final Openstack pod statuses:

cinder-api-67495cdffc-24fhs                    1/1       Running   0          1h
cinder-api-67495cdffc-kz5fn                    1/1       Running   0          1h
cinder-backup-65b7bd9b79-8n9pb                 1/1       Running   0          1h
cinder-scheduler-9ddbb7878-rbt4l               1/1       Running   0          1h
cinder-volume-75bf4cc9bd-6298x                 1/1       Running   0          1h
glance-api-68f6df4d5d-q84hs                    1/1       Running   0          2h
glance-api-68f6df4d5d-qbfwb                    1/1       Running   0          2h
glance-registry-5957979dc5-h54tc               1/1       Running   0          2h
glance-registry-5957979dc5-sglg7               1/1       Running   0          2h
ingress-7b4bc84cdd-84dtj                       1/1       Running   0          2h
ingress-7b4bc84cdd-ws45r                       1/1       Running   0          2h
ingress-error-pages-586c7f86d6-dlpm2           1/1       Running   0          2h
ingress-error-pages-586c7f86d6-w7cj2           1/1       Running   0          2h
keystone-api-7d9759db58-dz6kt                  1/1       Running   0          2h
keystone-api-7d9759db58-pvsc2                  1/1       Running   0          2h
libvirt-f7ngc                                  1/1       Running   0          1h
libvirt-gtjc7                                  1/1       Running   0          1h
libvirt-qmwf5                                  1/1       Running   0          1h
mariadb-ingress-84894687fd-m8fkr               1/1       Running   0          2h
mariadb-ingress-error-pages-78fb865f84-c6th5   1/1       Running   0          2h
mariadb-server-0                               1/1       Running   0          2h
memcached-memcached-5db74ddfd5-qjgvz           1/1       Running   0          2h
neutron-dhcp-agent-default-9bpxc               1/1       Running   0          52m
neutron-l3-agent-default-47n7k                 1/1       Running   0          52m
neutron-metadata-agent-default-hp46c           1/1       Running   0          52m
neutron-ovs-agent-default-6sbtg                1/1       Running   0          52m
neutron-ovs-agent-default-nl8fr                1/1       Running   0          52m
neutron-ovs-agent-default-tvmc4                1/1       Running   0          52m
neutron-server-775c765d9f-cx2gk                1/1       Running   0          52m
neutron-server-775c765d9f-ll5ml                1/1       Running   0          52m
nova-api-metadata-557c68cb46-8f8d5             1/1       Running   1          52m
nova-api-osapi-7658bfd554-7fbtx                1/1       Running   0          52m
nova-api-osapi-7658bfd554-v7qcr                1/1       Running   0          52m
nova-compute-default-g2jbd                     1/1       Running   0          52m
nova-compute-default-ljcbc                     1/1       Running   0          52m
nova-compute-default-mr24c                     1/1       Running   0          52m
nova-conductor-64457cf995-lbv65                1/1       Running   0          52m
nova-conductor-64457cf995-zts48                1/1       Running   0          52m
nova-consoleauth-c595f68bc-2269j               1/1       Running   0          52m
nova-consoleauth-c595f68bc-tbmcn               1/1       Running   0          52m
nova-novncproxy-54467b9c66-vp49j               1/1       Running   0          52m
nova-placement-api-655cd9fcf6-5p5sc            1/1       Running   0          52m
nova-placement-api-655cd9fcf6-r46dk            1/1       Running   0          52m
nova-scheduler-59647c6d9f-vm78p                1/1       Running   0          52m
openvswitch-db-cv47r                           1/1       Running   0          1h
openvswitch-db-dq7rc                           1/1       Running   0          1h
openvswitch-db-znp6l                           1/1       Running   0          1h
openvswitch-vswitchd-8p2j5                     1/1       Running   0          1h
openvswitch-vswitchd-v9rrp                     1/1       Running   0          1h
openvswitch-vswitchd-wlgkx                     1/1       Running   0          1h
rabbitmq-rabbitmq-0                            1/1       Running   0          2h
rabbitmq-rabbitmq-1                            1/1       Running   0          2h
rabbitmq-rabbitmq-2                            1/1       Running   0          2h
  1. Confirm Ceph component’s version.

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-mon-fsrv4 -- ceph -v
ceph version 12.2.5 (cad919881333ac92274171586c827e01f554a70a) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-osd-default-83945928-l84tl -- ceph -v
ceph version 12.2.5 (cad919881333ac92274171586c827e01f554a70a) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-rgw-57c68b7cd5-vxcc5 -- ceph -v
ceph version 12.2.5 (cad919881333ac92274171586c827e01f554a70a) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-mgr-654f97cbfd-gzb7k -- ceph -v
ceph version 12.2.5 (cad919881333ac92274171586c827e01f554a70a) luminous (stable)

ubuntu@mnode1:/opt/openstack-helm$ kubectl exec -n ceph ceph-mds-5fdcb5c64c-c52xq -- ceph -v
ceph version 12.2.5 (cad919881333ac92274171586c827e01f554a70a) luminous (stable)
  1. Check which images Provisionors and Mon-Check PODs are using

ubuntu@mnode1:/opt/openstack-helm$ kubectl describe pod -n ceph ceph-cephfs-provisioner-65ffbd47c4-cl4hj

Containers:
  ceph-cephfs-provisioner:
    Container ID:  docker://079f148c1fb9ba13ed6caa0ca9d1e63b455373020a565a212b5bd261cbaedb43
    Image:         quay.io/external_storage/cephfs-provisioner:v0.1.2
ubuntu@mnode1:/opt/openstack-helm$ kubectl describe pod -n ceph ceph-rbd-provisioner-5bfb577ffd-b7tkx

Containers:
  ceph-rbd-provisioner:
    Container ID:  docker://55b18b3400e8753f49f1343ee918a308ed1760816a1ce9797281dbfe3c5f9671
    Image:         quay.io/external_storage/rbd-provisioner:v0.1.1
ubuntu@mnode1:/opt/openstack-helm$ kubectl describe pod -n ceph ceph-mon-check-d85994946-zzwb4

Containers:
  ceph-mon:
    Container ID:  docker://d5a3396f99704038ab8ef6bfe329013ed46472ebb8e26dddc140b621329f0f92
    Image:         docker.io/openstackhelm/ceph-config-helper:latest-ubuntu_xenial

Conclusion:

Ceph can be upgraded without downtime for Openstack components in a multinode env.