Argocd + Rollouts + Reloader

[SrDayne]

Did someone actually make it all work together?

I spent 3 days implementing it with no luck. Every ConfigMap change I got different results: OutOfSync; no see changes at all; only one Rollout out of two dot restarted; etc.

I'm trying to understand, is it worth to keep trying or it doesn't work by design and I should look for another solution?

[SrDayne]

He he 😀
I solved this puzzle.
For all lost souls like me, who search for solution, you have to run Reloader pod with --reload-strategy=annotations argument. In this case Reloader will run in "Annotation mode" which adds metadata to spec/template/metadata/annotations field. This prevents Argocd from OutOfSync state.

[qdrddr]

hi, @SrDayne
I have the same issue, but -reload-strategy=annotations didn't help me. Do you have any other suggestions?

stakater/Reloader#627

[alexrecuenco]

I know I might be late to the party but if that is failing, and for some reason the annotations reload strategy is failing, it could be something else.

If that makes you switch back to the variable change strategy. you might need to tell ArgoCD to ignore differences on env fields that contain STAKATER_FOO_CONFIGMAP or STAKATER_FOO_SECRET (see here) using this

Some diff strategy like this would ignore those env variables changes in Deployments

ignoreDifferences:
  - group: apps
    kind: Deployment
    jqPathExpressions:
      - .spec.template.spec.containers[].env[] | select(.name == "STAKATER_FOO_CONFIGMAP")
      - .spec.template.spec.containers[].env[] | select(.name == "STAKATER_FOO_SECRET")

And I am sure it is similar with Daemonsets Statefulsets and Rollouts

[mrsimonemms]

I've solved this a slightly different way, but it's combing all the above answers.

I kep Reloader in "envvar mode" and then set the following in my argocd-cm file:

    resource.customizations.ignoreDifferences.all: |
        jqPathExpressions:
          - .spec.template.spec.containers[].env[] | select(.name | startswith("STAKATER_"))
          - '.spec.template.metadata.annotations."reloader.stakater.com/last-reloaded-from"'

This seems to catch both annotations and environment variables, so it doesn't matter which mode you're in. I used envvar mode because of #7513.

See Argo docs