Deployment of new version of application with OpenShift extension fails with `LabelSelectorRequirement(nil)}: field is immutable` about quarkus

[quarkus-bot]

/cc @geoand (kubernetes,openshift), @iocanel (kubernetes,openshift)

[iocanel]

This might be related to a recent change that removes some selectors that are not needed.
You could possibly work around this by deleting the previous resource.

Meanwhile, I'll try to have a look and see if there is something else we can / need to do.

[yrodiere]

You could possibly work around this by deleting the previous resource.

Right. But just to be clear, I'd need to do this on every deployment, because the problem occurs again on the next deployment. It's not just some old, stale resource definition causing trouble.

Meanwhile, I'll try to have a look and see if there is something else we can / need to do.

Thanks.

[iocanel]

I managed to reproduce the issue by changing the version of the application which ends up being used in the LabelSelector of Deployments.

This behavior is controlled by: https://quarkus.io/guides/all-config#quarkus-kubernetes_quarkus-openshift-add-version-to-label-selectors (so you can deal with the issue by setting it to false).

Apparently, DeploymentConfig treated selectors a bit differently (AFAIR, it used its own Selector implementation) and that's why you haven't encountered the issue before.

One option is to improve the error message, the other is to detect such conflicts and delete. I am a bit skeptic about the potential side effects of the later.

[yrodiere]

Thanks, I'll try setting quarkus.openshift.add-version-to-label-selectors to false.

Another option would be to have quarkus.openshift.add-version-to-label-selectors default to false, since re-deployment cannot work with that being set to true?