[stable/efs-provisioner] Add support for priorityClasses (#10278)

* [stable/efs-provisioner] Add support for priorityClasses

Signed-off-by: Art3mK <artem@kayalaynen.ru>

* feat(deployment): disable deployment with default efsFileSystemId to prevent CI test failuersi

Signed-off-by: Art3mK <artem@kayalaynen.ru>

stable/efs-provisioner/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v1
 name: efs-provisioner
 description: A Helm chart for the AWS EFS external storage provisioner
-version: 0.1.1
+version: 0.1.2
 appVersion: v0.1.2
 home: https://github.com/kubernetes-incubator/external-storage/tree/master/aws/efs
 sources:

stable/efs-provisioner/templates/deployment.yaml

@@ -1,3 +1,14 @@
+ {{- if ne .Values.efsProvisioner.efsFileSystemId "fs-12345678" }}
+ {{/*
+ The `efsFileSystemId` value must be set.
+
+ The above `if` condition also prevents the helm integration tests from failing.
+ Given that the helm test infrastructure does not have access to valid
+ AWS EFS resources, a deployment that references the example `fs-12345678`
+ creates pods that will never enter a clean, running state.
+
+ Omitting the deployment hacks around this limitation.
+*/}}
 kind: Deployment
 apiVersion: apps/v1beta2
 metadata:
@@ -24,6 +35,9 @@ spec:
         release: "{{ .Release.Name }}"
     spec:
       serviceAccount: {{ template "efs-provisioner.serviceAccountName" . }}
+      {{- if .Values.priorityClassName }}
+      priorityClassName: "{{ .Values.priorityClassName }}"
+      {{- end }}
       containers:
       - name: {{ template "efs-provisioner.fullname" . }}
         image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
@@ -54,3 +68,4 @@ spec:
         nfs:
           server: {{ .Values.efsProvisioner.efsFileSystemId }}.efs.{{ .Values.efsProvisioner.awsRegion }}.amazonaws.com
           path: /
+{{- end }}

stable/efs-provisioner/values.yaml

@@ -65,3 +65,5 @@ resources: {}
   # requests:
   #  cpu: 100m
   #  memory: 128Mi
+
+priorityClassName: ""