Allow configuring status_code_retries and connect_retries via cloud config

Change-Id: I45cf09f9aca8e4ed515a93e4903deb3df83ac65b

lower-constraints.txt

@@ -13,7 +13,7 @@ jmespath==0.9.0
 jsonpatch==1.16
 jsonpointer==1.13
 jsonschema==2.6.0
-keystoneauth1==3.7.0
+keystoneauth1==3.8.0
 linecache2==1.0.0
 mock==2.0.0
 mox3==0.20.0

openstack/config/cloud_region.py

@@ -207,7 +207,8 @@ class CloudRegion(object):
     def _get_config(
             self, key, service_type,
             default=None,
-            fallback_to_unprefixed=False):
+            fallback_to_unprefixed=False,
+            converter=None):
         '''Get a config value for a service_type.
 
         Finds the config value for a key, looking first for it prefixed by
@@ -226,10 +227,17 @@ class CloudRegion(object):
         for st in self._service_type_manager.get_all_types(service_type):
             value = self.config.get(_make_key(key, st))
             if value is not None:
-                return value
+                break
+        else:
             if fallback_to_unprefixed:
-            return self.config.get(key)
+                value = self.config.get(key)
+
+        if value is None:
             return default
+        else:
+            if converter is not None:
+                value = converter(value)
+            return value
 
     def get_interface(self, service_type=None):
         return self._get_config(
@@ -264,6 +272,16 @@ class CloudRegion(object):
             value = self._get_config('endpoint', service_type)
         return value
 
+    def get_connect_retries(self, service_type):
+        return self._get_config('connect_retries', service_type,
+                                fallback_to_unprefixed=True,
+                                converter=int)
+
+    def get_status_code_retries(self, service_type):
+        return self._get_config('status_code_retries', service_type,
+                                fallback_to_unprefixed=True,
+                                converter=int)
+
     @property
     def prefer_ipv6(self):
         return not self._force_ipv4
@@ -399,6 +417,11 @@ class CloudRegion(object):
         """
         version_request = self._get_version_request(service_type, version)
 
+        kwargs.setdefault('connect_retries',
+                          self.get_connect_retries(service_type))
+        kwargs.setdefault('status_code_retries',
+                          self.get_status_code_retries(service_type))
+
         client = constructor(
             session=self.get_session(),
             service_type=self.get_service_type(service_type),

openstack/tests/unit/config/test_cloud_config.py

@@ -34,6 +34,9 @@ fake_services_dict = {
     'identity_service_name': 'locks',
     'volume_api_version': '1',
     'auth': {'password': 'hunter2', 'username': 'AzureDiamond'},
+    'connect_retries': 1,
+    'baremetal_status_code_retries': 5,
+    'baremetal_connect_retries': 3,
 }
 
 
@@ -149,6 +152,10 @@ class TestCloudRegion(base.TestCase):
         self.assertIsNone(cc.get_endpoint('image'))
         self.assertIsNone(cc.get_service_name('compute'))
         self.assertEqual('locks', cc.get_service_name('identity'))
+        self.assertIsNone(cc.get_status_code_retries('compute'))
+        self.assertEqual(5, cc.get_status_code_retries('baremetal'))
+        self.assertEqual(1, cc.get_connect_retries('compute'))
+        self.assertEqual(3, cc.get_connect_retries('baremetal'))
 
     def test_aliases(self):
         services_dict = fake_services_dict.copy()

releasenotes/notes/wire-in-retries-10898f7bc81e2269.yaml

@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    Allows configuring Session's ``connect_retries`` and
+    ``status_code_retries`` via the cloud configuration (options
+    ``<service type>_connect_retries``, ``connect_retries``,
+    ``<service type>_status_code_retries`` and ``status_code_retries``).

requirements.txt

@@ -8,7 +8,7 @@ requestsexceptions>=1.2.0 # Apache-2.0
 jsonpatch!=1.20,>=1.16 # BSD
 six>=1.10.0 # MIT
 os-service-types>=1.2.0 # Apache-2.0
-keystoneauth1>=3.7.0 # Apache-2.0
+keystoneauth1>=3.8.0 # Apache-2.0
 deprecation>=1.0 # Apache-2.0
 
 munch>=2.1.0 # MIT