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Custom Resource Annotations in Helm-based Operators

Use custom resource annotations to configure how reconciliation works.

helm.sdk.operatorframework.io/upgrade-force

This annotation can be set to "true" on custom resources to enable the chart to be upgraded with the helm upgrade --force option. For more info see the Helm Upgrade documentation and this explanation of --force behavior.

Example

apiVersion: example.com/v1alpha1
kind: Nginx
metadata:
  name: nginx-sample
  annotations:
    helm.sdk.operatorframework.io/upgrade-force: "true"
spec:
  replicaCount: 2
  service:
    port: 8080

Setting this annotation to true and making a change to trigger an upgrade (e.g. setting spec.replicaCount: 3) will cause the custom resource to be reconciled and upgraded with the force option. This can be verified in the log message when an upgrade succeeds:

{"level":"info","ts":1591198931.1703992,"logger":"helm.controller","msg":"Upgraded release","namespace":"helm-nginx","name":"example-nginx","apiVersion":"cache.example.com/v1alpha1","kind":"Nginx","release":"example-nginx","force":true}