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Diffstat (limited to 'docker/services/README.rst')
| -rw-r--r-- | docker/services/README.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/docker/services/README.rst b/docker/services/README.rst index ce255ba8..a843efc3 100644 --- a/docker/services/README.rst +++ b/docker/services/README.rst @@ -124,3 +124,24 @@ Steps correlate to the following: 5) Service activation (Pacemaker) a) step 5 baremetal b) step 5 containers + +Update steps: +------------- + +All services have an associated update_tasks output that is an ansible +snippet that will be run during update in an rolling update that is +expected to run in a rolling update fashion (one node at a time) + +For Controller (where pacemaker is running) we have the following states: + 1. Step=1: stop the cluster on the updated node; + 2. Step=2: Pull the latest image and retag the it pcmklatest + 3. Step=3: yum upgrade happens on the host. + 4. Step=4: Restart the cluster on the node + 5. Step=5: Verification: + Currently we test that the pacemaker services are running. + +Then the usual deploy steps are run which pull in the latest image for +all containerized services and the updated configuration if any. + +Note: as pacemaker is not containerized, the points 1 and 4 happen in +puppet/services/pacemaker.yaml. |