Implement policy in code - job (2)

This commit migrate all job policies into code [1].

Like oslo.config, with oslo.policy, we can define all of
default rules in code base and only change some rules
via policy file. Another thing that we should use yaml
format instead of json format.

[1] https://governance.openstack.org/tc/goals/queens/policy-in-code.html
Co-authored-By: Dai Dang-Van <daidv@vn.fujitsu.com>

Change-Id: Ia80ee3eb4617cab66b4529e501ca72d2a38b7eba

etc/freezer/policy.json

@@ -1,11 +1,4 @@
 {
-    "jobs:get_all": "",
-    "jobs:create": "",
-    "jobs:get": "",
-    "jobs:delete": "",
-    "jobs:update": "",
-    "jobs:event:create": "",
-
     "actions:get_all": "",
     "actions:create": "",
     "actions:get": "",

freezer_api/common/policies/__init__.py

@@ -18,9 +18,11 @@
 import itertools
 
 from freezer_api.common.policies import base
+from freezer_api.common.policies import job
 
 
 def list_rules():
     return itertools.chain(
-        base.list_rules()
+        base.list_rules(),
+        job.list_rules()
     )

freezer_api/common/policies/base.py

@@ -17,6 +17,7 @@
 
 from oslo_policy import policy
 
+UNPROTECTED = ''
 
 rules = [
     policy.RuleDefault(

freezer_api/common/policies/job.py

@@ -0,0 +1,91 @@
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+from oslo_policy import policy
+
+from freezer_api.common.policies import base
+
+JOBS = 'jobs:%s'
+
+rules = [
+    policy.DocumentedRuleDefault(
+        name=JOBS % 'create',
+        check_str=base.UNPROTECTED,
+        description='Creates job.',
+        operations=[
+            {
+                'path': '/v1/jobs',
+                'method': 'POST'
+            }
+        ]
+    ),
+    policy.DocumentedRuleDefault(
+        name=JOBS % 'delete',
+        check_str=base.UNPROTECTED,
+        description='Delete jobs.',
+        operations=[
+            {
+                'path': '/v1/jobs/{job_id}',
+                'method': 'DELETE'
+            }
+        ]
+    ),
+    policy.DocumentedRuleDefault(
+        name=JOBS % 'get',
+        check_str=base.UNPROTECTED,
+        description='Show jobs.',
+        operations=[
+            {
+                'path': '/v1/jobs/{job_id}',
+                'method': 'GET'
+            }
+        ]
+    ),
+    policy.DocumentedRuleDefault(
+        name=JOBS % 'get_all',
+        check_str=base.UNPROTECTED,
+        description='Lists jobs.',
+        operations=[
+            {
+                'path': '/v1/jobs',
+                'method': 'GET'
+            }
+        ]
+    ),
+    policy.DocumentedRuleDefault(
+        name=JOBS % 'update',
+        check_str=base.UNPROTECTED,
+        description='Updates jobs.',
+        operations=[
+            {
+                'path': '/v1/jobs/{job_id}',
+                'method': 'PATCH'
+            }
+        ]
+    ),
+    policy.DocumentedRuleDefault(
+        name=JOBS % 'event:create',
+        check_str=base.UNPROTECTED,
+        description='Create an event on the specified job',
+        operations=[
+            {
+                'path': '/v1/jobs/{job_id}/event',
+                'method': 'POST'
+            }
+        ]
+    )
+]
+
+
+def list_rules():
+    return rules