Add ability to configure node container securityContext

Author: prateekdegaons1991

charts/aws-efs-csi-driver/templates/node-daemonset.yaml

@@ -70,8 +70,10 @@ spec:
       {{- end }}
       containers:
         - name: efs-plugin
+          {{- with .Values.node.containerSecurityContext }}
           securityContext:
-            privileged: true
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           image: {{ printf "%s:%s" .Values.image.repository (default (printf "v%s" .Chart.AppVersion) (toString .Values.image.tag)) }}
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           args:

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

@@ -219,6 +219,9 @@ node:
     runAsUser: 0
     runAsGroup: 0
     fsGroup: 0
+  # securityContext on the node container
+  containerSecurityContext:
+    privileged: true
   env: []
   volumes: []
   volumeMounts: []