Added monasca-ui permissions policy

Change-Id: I160447204b1e8a5ddaf201fe5c5df8b2a51588b8

monasca_policy.json.sample

@@ -0,0 +1,7 @@
+{
+    "context_is_admin":  "role:admin",
+    "admin_or_owner":  "is_admin:True or project_id:%(project_id)s",
+    "default": "rule:admin_required",
+
+    "monitoring:monitoring": "rule:admin_required",
+}

monitoring/dashboard.py

@@ -24,6 +24,6 @@ class Monitoring(horizon.Dashboard):
     slug = "monitoring"
     panels = ('overview', 'alarmdefs', 'alarms', 'notifications',)
     default_panel = 'overview'
-
+    policy_rules = (("monitoring", "monitoring:monitoring"),)
 
 horizon.register(Monitoring)