feat: Add option to provision StorageClasses

Most application charts don't usually create `StorageClass`es. They create PVCs.

charts/aws-ebs-csi-driver/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v1
-appVersion: "0.9.0"
+appVersion: "0.9.1"
 name: aws-ebs-csi-driver
 description: A Helm chart for AWS EBS CSI Driver
 version: 0.9.0

charts/aws-ebs-csi-driver/templates/storageclass.yaml

@@ -0,0 +1,15 @@
+{{- range .Values.storageClasses }}
+kind: StorageClass
+apiVersion: storage.k8s.io/v1
+metadata:
+  name: {{ .name }}
+provisioner: ebs.csi.aws.com
+volumeBindingMode: {{ default "WaitForFirstConsumer" .volumeBindingMode }}
+{{- if hasKey . "reclaimPolicy" }}
+reclaimPolicy: {{ .reclaimPolicy }}
+{{- end }}
+{{- with .parameters }}
+parameters:
+{{ toYaml . | indent 2 }}
+{{- end }}
+{{- end }}

charts/aws-ebs-csi-driver/values.yaml

@@ -101,3 +101,13 @@ serviceAccount:
     create: true
     name: ebs-snapshot-controller
     annotations: {}
+
+storageClasses: []
+# Add StorageClass resources like:
+# - name: ebs-sc
+#   # defaults to WaitForFirstConsumer
+#   volumeBindingMode: WaitForFirstConsumer
+#   # defaults to Delete
+#   reclaimPolicy: Retain
+#   parameters:
+#     encrypted: "true"