Add Pod Disruption Budget and configurable deployment name

Signed-off-by: Omer Aplatony <omerap12@gmail.com>

charts/aws-efs-csi-driver/templates/controller-deployment.yaml

@@ -3,7 +3,7 @@
 kind: Deployment
 apiVersion: apps/v1
 metadata:
-  name: efs-csi-controller
+  name: {{ .Values.controller.name }}
   labels:
     app.kubernetes.io/name: {{ include "aws-efs-csi-driver.name" . }}
     {{- with .Values.controller.additionalLabels }}
@@ -13,7 +13,7 @@ spec:
   replicas: {{ .Values.replicaCount }}
   selector:
     matchLabels:
-      app: efs-csi-controller
+      app: {{ .Values.controller.name }}
       app.kubernetes.io/name: {{ include "aws-efs-csi-driver.name" . }}
       app.kubernetes.io/instance: {{ .Release.Name }}
   {{- with .Values.controller.updateStrategy }}
@@ -23,7 +23,7 @@ spec:
   template:
     metadata:
       labels:
-        app: efs-csi-controller
+        app: {{ .Values.controller.name }}
         app.kubernetes.io/name: {{ include "aws-efs-csi-driver.name" . }}
         app.kubernetes.io/instance: {{ .Release.Name }}
         {{- with .Values.controller.podLabels }}

charts/aws-efs-csi-driver/templates/controller-pdb.yaml

@@ -0,0 +1,19 @@
+{{- if .Values.controller.pdb }}
+{{- if .Capabilities.APIVersions.Has "policy/v1/PodDisruptionBudget" }}
+apiVersion: policy/v1
+{{- else }}
+apiVersion: policy/v1beta1
+{{- end }}
+kind: PodDisruptionBudget
+metadata:
+  name: {{ .Values.controller.name }}
+  labels:
+    app.kubernetes.io/name: {{ include "aws-efs-csi-driver.name" . }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ .Values.controller.name }}
+      app.kubernetes.io/name: {{ include "aws-efs-csi-driver.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+{{ toYaml .Values.controller.pdb | indent 2 }}
+{{- end }}

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

@@ -50,6 +50,8 @@ imagePullSecrets: []
 controller:
   # Specifies whether a deployment should be created
   create: true
+  # name of the controller deployment
+  name: efs-csi-controller
   # Number for the log level verbosity
   logLevel: 2
   # If set, add pv/pvc metadata to plugin create requests as parameters.
@@ -101,6 +103,8 @@ controller:
     #  eks.amazonaws.com/role-arn: arn:aws:iam::111122223333:role/efs-csi-role
   healthPort: 9909
   regionalStsEndpoints: false
+  # Pod Disruption Budget
+  pdb: {}
   # securityContext on the controller pod
   securityContext:
     runAsNonRoot: false