[goal] Deprecate the JSON formatted policy file

As per the community goal of migrating the policy file
the format from JSON to YAML[1], we need to do two things:

1. Change the default value of '[oslo_policy] policy_file''
config option from 'policy.json' to 'policy.yaml' with
upgrade checks.

2. Deprecate the JSON formatted policy file on the project side
via warning in doc and releasenotes.

Also replace policy.json to policy.yaml ref from doc and tests.

[1]https://governance.openstack.org/tc/goals/selected/wallaby/migrate-policy-format-from-json-to-yaml.html

Change-Id: Id369108f00acb6977bf24f48ff77b45a69b2908f

lower-constraints.txt

@@ -52,18 +52,18 @@ os-service-types==1.2.0
 osc-lib==1.10.0
 oslo.cache==1.29.0
 oslo.concurrency==3.26.0
-oslo.config==5.2.0
-oslo.context==2.20.0
+oslo.config==6.8.0
+oslo.context==2.22.0
 oslo.db==4.44.0
 oslo.i18n==3.20.0
 oslo.log==3.44.0
 oslo.messaging==5.36.0
 oslo.middleware==3.35.0
-oslo.policy==1.34.0
+oslo.policy==3.6.0
 oslo.serialization==2.25.0
 oslo.service==1.30.0
-oslo.upgradecheck==0.1.1
-oslo.utils==3.36.0
+oslo.upgradecheck==1.3.0
+oslo.utils==3.40.0
 oslotest==3.3.0
 osprofiler==2.0.0
 packaging==17.1
@@ -99,14 +99,14 @@ python-subunit==1.2.0
 python-swiftclient==3.5.0
 python-troveclient==2.2.0
 pytz==2018.3
-PyYAML==3.13
+PyYAML==5.1
 pyzabbix==0.7.4
 reno==3.1.0
 repoze.lru==0.7
-requests==2.18.4
+requests==2.20.0
 requests-mock==1.4.0
 requestsexceptions==1.4.0
-rfc3986==1.1.0
+rfc3986==1.2.0
 Routes==2.4.1
 setproctitle==1.1.10
 simplejson==3.13.2

releasenotes/notes/deprecate-json-formatted-policy-file-6a1e9b690fdbc132.yaml

@@ -0,0 +1,20 @@
+---
+upgrade:
+  - |
+    The default value of ``[oslo_policy] policy_file`` config option has
+    been changed from ``policy.json`` to ``policy.yaml``.
+    Operators who are utilizing customized or previously generated
+    static policy JSON files (which are not needed by default), should
+    generate new policy files or convert them in YAML format. Use the
+    `oslopolicy-convert-json-to-yaml
+    <https://docs.openstack.org/oslo.policy/latest/cli/oslopolicy-convert-json-to-yaml.html>`_
+    tool to convert a JSON to YAML formatted policy file in
+    backward compatible way.
+deprecations:
+  - |
+    Use of JSON policy files was deprecated by the ``oslo.policy`` library
+    during the Victoria development cycle. As a result, this deprecation is
+    being noted in the Wallaby cycle with an anticipated future removal of support
+    by ``oslo.policy``. As such operators will need to convert to YAML policy
+    files. Please see the upgrade notes for details on migration of any
+    custom policy files.

requirements.txt

@@ -10,16 +10,16 @@ lxml>=4.5.2 # BSD
 PyMySQL>=0.8.0 # MIT License
 python-dateutil>=2.7.0 # BSD
 networkx>=2.4 # BSD
-oslo.config>=5.2.0 # Apache-2.0
-oslo.context>=2.20.0 # Apache-2.0
+oslo.config>=6.8.0 # Apache-2.0
+oslo.context>=2.22.0 # Apache-2.0
 oslo.db>=4.44.0 # Apache-2.0
 oslo.messaging>=5.36.0 # Apache-2.0
 oslo.middleware>=3.35.0 # Apache-2.0
 oslo.serialization>=2.25.0 # Apache-2.0
 oslo.log>=3.44.0 # Apache-2.0
-oslo.policy>=1.34.0 # Apache-2.0
+oslo.policy>=3.6.0 # Apache-2.0
 oslo.i18n>=3.20.0 # Apache-2.0
-oslo.upgradecheck>=0.1.1 # Apache-2.0
+oslo.upgradecheck>=1.3.0 # Apache-2.0
 pecan>=1.2.1 # BSD
 PasteDeploy>=1.5.2 # MIT
 Werkzeug>=0.14.1 # BSD License
@@ -32,8 +32,8 @@ pysnmp>=4.4.4 # BSD
 PyJWT>=1.6.0 # MIT
 osprofiler>=2.0.0 # Apache-2.0
 keystoneauth1>=3.6.2 # Apache-2.0
-PyYAML>=3.13 # MIT
-requests>=2.18.4 # Apache-2.0
+PyYAML>=5.1 # MIT
+requests>=2.20.0 # Apache-2.0
 WebOb>=1.7.4 # MIT
 eventlet!=0.20.1,>=0.20.0 # MIT
 debtcollector>=1.19.0 # Apache-2.0

vitrage/api/hooks.py

@@ -14,6 +14,7 @@ import oslo_messaging
 
 from oslo_config import cfg
 from oslo_context import context
+from oslo_policy import opts
 from oslo_policy import policy
 from pecan import hooks
 
@@ -25,6 +26,12 @@ from vitrage import storage
 
 CONF = cfg.CONF
 
+# TODO(gmann): Remove setting the default value of config policy_file
+# once oslo_policy change the default value to 'policy.yaml'.
+# https://github.com/openstack/oslo.policy/blob/a626ad12fe5a3abd49d70e3e5b95589d279ab578/oslo_policy/opts.py#L49
+DEFAULT_POLICY_FILE = 'policy.yaml'
+opts.set_defaults(CONF, DEFAULT_POLICY_FILE)
+
 
 class ConfigHook(hooks.PecanHook):
     """Attach the configuration and policy enforcer object to the request. """

vitrage/cli/status.py

@@ -15,6 +15,7 @@
 import sys
 
 from oslo_config import cfg
+from oslo_upgradecheck import common_checks
 from oslo_upgradecheck import upgradecheck
 
 from vitrage.i18n import _
@@ -30,17 +31,9 @@ class Checks(upgradecheck.UpgradeCommands):
     and added to _upgrade_checks tuple.
     """
 
-    def _sample_check(self):
-        """This is sample check added to test the upgrade check framework
-
-        It needs to be removed after adding any real upgrade check
-        """
-        return upgradecheck.Result(upgradecheck.Code.SUCCESS, 'Sample detail')
-
     _upgrade_checks = (
-        # Sample check added for now.
-        # Whereas in future real checks must be added here in tuple
-        (_('Sample Check'), _sample_check),
+        (_('policy File JSON to YAML Migration'),
+         (common_checks.check_policy_json, {'conf': CONF})),
     )
 
 

vitrage/tests/unit/cli/test_status.py

@@ -24,7 +24,11 @@ class TestUpgradeChecks(base.BaseTest):
         super(TestUpgradeChecks, self).setUp()
         self.cmd = status.Checks()
 
-    def test__sample_check(self):
-        check_result = self.cmd._sample_check()
-        self.assertEqual(
-            Code.SUCCESS, check_result.code)
+    def test_checks(self):
+        for name, func in self.cmd._upgrade_checks:
+            if isinstance(func, tuple):
+                func_name, kwargs = func
+                result = func_name(self, **kwargs)
+            else:
+                result = func(self)
+            self.assertEqual(Code.SUCCESS, result.code)