ResourceExists returns true if the given resource kind exists in the given api groupversion.

ComponentLabelKey is Kubernetes recommended label key, it represents the component within the architecture.

InstanceLabelKey is Kubernetes recommended label key, it represents a unique name identifying the instance of an application It's set by helm when installing a release.

ManagedByLabelKey is Kubernetes recommended label key, it represents the tool being used to manage the operation of an application For resources managed by SeaweedFS Operator, its value is always seaweedfs-operator.

NameLabelKey is Kubernetes recommended label key, it represents the name of the application.

PodName is to select pod by name https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#pod-selector.

VersionLabelKey is Kubernetes recommended label key, it represents the version of the app.