DefaultAPINamespace returns namespace for direct api access from a pod https://v1-21.docs.kubernetes.io/docs/tasks/run-application/access-api-from-pod/#directly-accessing-the-rest-api.

GetOperatorNamespace returns the namespace of the operator pod.

GetWatchNamespace returns the namespace the operator should be watching for changes.

InitImage returns the image to be used in init container.

RolloutRestart restarts pods owned by object by updating the pod template with passed annotation key-value.

SecretKeySelector is a k8s helper to create SecretKeySelector object.