Enable console plugins via an annotation

[stephennimmo]

Enabling console plugins via gitops is a real pain. Would an annotation be great?

When a Subscription is added with the annotation.

annotations:
  console.openshift.io/enable-plugins: ""

Then the controller would parse the packagemanifest for the operator and if there are any plugins, then it would patch the cluster console.

console.openshift.io/plugins: ["the-plugin"]

oc patch consoles.operator.openshift.io cluster --type=json --patch '[{"op": "add", "path": "/spec/plugins/-", "value": "the-plugin"}]'

and then if the Subscription is deleted, the finalizer would remove it from the plugins array.

full Subscription example.

apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: odf-operator-subscription
  namespace: openshift-storage
  annotations:
    console.openshift.io/enable-plugins: ""
spec:
  channel: stable-4.18
  installPlanApproval: Automatic
  name: odf-operator
  source: redhat-operators
  sourceNamespace: openshift-marketplace

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