[Feature][operator] Argocd synchronization annotation

[bkomraz1]

VictoriaMetrics operator supports adding annotations for converted object for properly comparing and syncing ArgCD objects.

| VM_PROMETHEUSCONVERTERADDARGOCDIGNOREANNOTATIONS | false | false | adds compare-options and sync-options for prometheus objects converted by operator it helps to properly use converter with ArgoCD |

It should be possible to enable it by values

[k1rk]

@bkomraz1 hi you can specify it already for victoria-metrics-operator you can set env variables through env parameter like

env:
  - name: VM_PROMETHEUSCONVERTERADDARGOCDIGNOREANNOTATIONS
     value: true

for victoria-metrics-k8s-stack it uses victoria-metrics-operator chart as a dependency so you can also set it in the same way

victoria-metrics-operator:
  env:
    - name: VM_PROMETHEUSCONVERTERADDARGOCDIGNOREANNOTATIONS
      value: true

its a bit confusing that we have operator and victoria-metrics-operator in chart values, we will address this in next release

[bkomraz1]

@k1rk Technically you are right, but how users will know about this feature? I had to go to code of the operator to find it. I am not sure that all users will do it.

At least readme of the helm chart should have list of supported environment variables and values.yaml should reference to vars.MD file

https://github.com/VictoriaMetrics/operator/blob/master/vars.MD

[Haleygo]

but how users will know about this feature? I had to go to code of the operator to find it. I am not sure that all users will do it.

related to https://github.com/VictoriaMetrics/operator/issues/580