#1609 Upgrade our various OCP cluster to latest version from 4.18.x branch
Closed: Fixed 13 days ago by arrfab. Opened 2 months ago by arrfab.

We are still on branch 4.15.x for now on our various openshift clusters, but based on https://access.redhat.com/support/policy/updates/openshift , "full support" ended in September already and we're just getting some minimal fixes until August this year.
Switching to 4.18.x branch (which itself is a LTS one) should be our main target at this point, but we'd have to :

  • verify which kubernetes api endpoints are deprecated/removed
  • upgrade first our .stg. ci ocp cluster and validate
  • if working, announce and update our other ones

Metadata Update from @arrfab:
- Issue tagged with: centos-ci-infra, centos-common-infra, centos-stream, high-gain, high-trouble, investigation

2 months ago

If I understand https://access.redhat.com/support/policy/updates/openshift correctly, "full support" as already ended for the 4.16 release. Any chance you could bump all the way to 4.18?

@mhuin yeah, something to indeed consider but that would mean testing the full path through intermediate releases ..
Trying to see when we can test that on our .stg. cluster and then just reproduce on our main one (and scheduled all the upgrades on same day, so multiple downtimes but in serial mode)

Metadata Update from @arrfab:
- Issue assigned to arrfab

17 days ago

Validing first on our .stg. ocp cluster and there are breaking changes from 4.16 to 4.17 that need to be taken care of. (like migration from OpenshiftSDN to OVNKubernetes

Our .stg. cluster was already migrated from 4.15 to 4.16.x and is now being migrated to 4.17.x (after the reconfig needed for ovnkubernetes)
More info after final upgrade and validation.
If that all works, I'll just announce the same operation to ci-users list and schedule it (probably for next week)

stg cluster was updated to 4.18.9 :

 oc version
Client Version: 4.18.9
Kustomize Version: v5.4.2
Server Version: 4.18.9
Kubernetes Version: v1.31.7

So I'll just announce this to ci-users list (as all pods will be restarted mutliple times due to all serial upgrades)

All updated/upgraded, so closing

Metadata Update from @arrfab:
- Issue close_status updated to: Fixed
- Issue status updated to: Closed (was: Open)

13 days ago

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