Fix default admin_or_owner policy expression

By default not even an admin can use the get_summary endpoint with
all_tenants=True or using a tenant_id parameter. This commit fixes that.

This rule is now the same as how cinder defines admin_or_owner.

Change-Id: I3e34927e8ab88f25d2975b4dbac89b52a7d94c98
(cherry picked from commit 2a985c94ee)

cloudkitty/common/policies/base.py

@@ -25,7 +25,9 @@ rules = [
         check_str='role:admin'),
     policy.RuleDefault(
         name='admin_or_owner',
-        check_str='is_admin:True or project_id:%(project_id)s'),
+        check_str='is_admin:True or '
+                  '(role:admin and is_admin_project:True) or '
+                  'project_id:%(project_id)s'),
     policy.RuleDefault(
         name='default',
         check_str=UNPROTECTED)

doc/source/_static/cloudkitty.policy.yaml.sample

@@ -1,6 +1,6 @@
 #"context_is_admin": "role:admin"
 
-#"admin_or_owner": "is_admin:True or project_id:%(project_id)s"
+#"admin_or_owner": "is_admin:True or (role:admin and is_admin_project:True) or project_id:%(project_id)s"
 
 #"default": ""
 
@@ -45,7 +45,7 @@
 # GET  /v1/info/config
 #"info:get_config": ""
 
-# Reture the list of loaded modules in Cloudkitty.
+# Return the list of loaded modules in Cloudkitty.
 # LIST  /v1/rating/modules
 #"rating:list_modules": "role:admin"