Reduce lighthouse-coredns RBAC permissions

Signed-off-by: Tom Pantelis <tompantelis@gmail.com>

submariner-operator/templates/rbac.yaml

@@ -673,34 +673,19 @@ kind: ClusterRole
 metadata:
   name: {{ template "submariner.fullname" . }}:lighthouse-coredns
 rules:
-  - apiGroups:
-      - ""
-    resources:
-      - services
-      - namespaces
-      - endpoints
-    verbs:
-      - get
-      - list
-      - watch
-      - update
   - apiGroups:
       - discovery.k8s.io
     resources:
       - endpointslices
     verbs:
-      - create
       - get
       - list
       - watch
-      - update
-      - delete
-      - deletecollection
   - apiGroups:
       - submariner.io
     resources:
-      - "gateways"
+      - gateways
-      - "submariners"
+      - submariners
     verbs:
       - get
       - list
@@ -708,14 +693,11 @@ rules:
   - apiGroups:
       - multicluster.x-k8s.io
     resources:
-      - "*"
+      - serviceimports
     verbs:
-      - create
       - get
       - list
       - watch
-      - update
-      - delete
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding