{{- if .Values.controller.enabled }}
Volume Snapshot Controller installed.
{{- end }}
{{- if .Values.webhook.enabled }}
Validation for VolumeSnapshots installed.
{{- end }}

{{- if and (not (.Capabilities.APIVersions.Has "snapshot.storage.k8s.io/v1")) (not (.Capabilities.APIVersions.Has "snapshot.storage.k8s.io/v1beta") ) }}
Please install the snapshot CRDs, otherwise the controller will not run.

kubectl apply -f https://raw.githubusercontent.com/kubernetes-csi/external-snapshotter/{{ .Chart.AppVersion }}/client/config/crd/snapshot.storage.k8s.io_volumesnapshotclasses.yaml
kubectl apply -f https://raw.githubusercontent.com/kubernetes-csi/external-snapshotter/{{ .Chart.AppVersion }}/client/config/crd/snapshot.storage.k8s.io_volumesnapshots.yaml
kubectl apply -f https://raw.githubusercontent.com/kubernetes-csi/external-snapshotter/{{ .Chart.AppVersion }}/client/config/crd/snapshot.storage.k8s.io_volumesnapshotcontents.yaml
{{- else if .Release.IsUpgrade }}
It looks like you are upgrading from a previous release. Helm currently does not support upgrading CRDs, so to ensure
you have the latest CRDs applied, you can run the following commands:

kubectl replace -f https://raw.githubusercontent.com/kubernetes-csi/external-snapshotter/{{ .Chart.AppVersion }}/client/config/crd/snapshot.storage.k8s.io_volumesnapshotclasses.yaml
kubectl replace -f https://raw.githubusercontent.com/kubernetes-csi/external-snapshotter/{{ .Chart.AppVersion }}/client/config/crd/snapshot.storage.k8s.io_volumesnapshots.yaml
kubectl replace -f https://raw.githubusercontent.com/kubernetes-csi/external-snapshotter/{{ .Chart.AppVersion }}/client/config/crd/snapshot.storage.k8s.io_volumesnapshotcontents.yaml
{{- end }}

If you already have volume snapshots deployed using a CRDs before v1, you should
verify that the existing snapshots are upgradable to v1 CRDs. The snapshot controller (>= v3.0.0)
will label any invalid snapshots it can find. Use the following commands to find any invalid snapshot

kubectl get volumesnapshots --selector=snapshot.storage.kubernetes.io/invalid-snapshot-resource="" --all-namespaces
kubectl get volumesnapshotcontents --selector=snapshot.storage.kubernetes.io/invalid-snapshot-resource="" --all-namespaces

If the above commands return any items, you need to remove them before upgrading to the newer v1 CRDs.
