Add optional addon PSPs

cluster/addons/fluentd-elasticsearch/podsecuritypolicies/es-psp-binding.yaml

@@ -0,0 +1,16 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: gce:podsecuritypolicy:elasticsearch-logging
+  namespace: kube-system
+  labels:
+    addonmanager.kubernetes.io/mode: Reconcile
+    kubernetes.io/cluster-service: "true"
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: gce:podsecuritypolicy:privileged
+subjects:
+- kind: ServiceAccount
+  name: elasticsearch-logging
+  namespace: kube-system