Move shared metadata driver related config options

This change moves metadata driver related config options to metadata
driver module to prepare the use of metadata driver method in the dhcp
agent (daughter change). The metadata_port option is not moved as the
dhcp agent uses a non-configurable port (80).

Change-Id: Ie45fdad86f33d35fca3096c4c52fae941a279e76
Partial-Bug: #1187107

neutron/agent/l3/config.py

@@ -55,19 +55,5 @@ OPTS = [
     cfg.BoolOpt('enable_metadata_proxy', default=True,
                 help=_("Allow running metadata proxy.")),
     cfg.BoolOpt('router_delete_namespaces', default=False,
-                help=_("Delete namespace after removing a router.")),
-    cfg.StrOpt('metadata_proxy_socket',
-               default='$state_path/metadata_proxy',
-               help=_('Location of Metadata Proxy UNIX domain '
-                      'socket')),
-    cfg.StrOpt('metadata_proxy_user',
-               default='',
-               help=_("User (uid or name) running metadata proxy after "
-                      "its initialization (if empty: L3 agent effective "
-                      "user)")),
-    cfg.StrOpt('metadata_proxy_group',
-               default='',
-               help=_("Group (gid or name) running metadata proxy after "
-                      "its initialization (if empty: L3 agent effective "
-                      "group)"))
+                help=_("Delete namespace after removing a router."))
 ]

neutron/agent/l3_agent.py

@@ -26,6 +26,7 @@ from neutron.agent.l3 import config as l3_config
 from neutron.agent.l3 import ha
 from neutron.agent.linux import external_process
 from neutron.agent.linux import interface
+from neutron.agent.metadata import driver as metadata_driver
 from neutron.common import config as common_config
 from neutron.common import topics
 from neutron.openstack.common import service
@@ -34,6 +35,7 @@ from neutron import service as neutron_service
 
 def register_opts(conf):
     conf.register_opts(l3_config.OPTS)
+    conf.register_opts(metadata_driver.MetadataDriver.OPTS)
     conf.register_opts(ha.OPTS)
     config.register_interface_driver_opts_helper(conf)
     config.register_use_namespaces_opts_helper(conf)

neutron/agent/metadata/driver.py

@@ -15,6 +15,8 @@
 
 import os
 
+from oslo.config import cfg
+
 from neutron.agent.common import config
 from neutron.agent.linux import external_process
 from neutron.openstack.common import log as logging
@@ -24,6 +26,24 @@ LOG = logging.getLogger(__name__)
 
 
 class MetadataDriver(advanced_service.AdvancedService):
+
+    OPTS = [
+        cfg.StrOpt('metadata_proxy_socket',
+                   default='$state_path/metadata_proxy',
+                   help=_('Location of Metadata Proxy UNIX domain '
+                          'socket')),
+        cfg.StrOpt('metadata_proxy_user',
+                   default='',
+                   help=_("User (uid or name) running metadata proxy after "
+                          "its initialization (if empty: L3 agent effective "
+                          "user)")),
+        cfg.StrOpt('metadata_proxy_group',
+                   default='',
+                   help=_("Group (gid or name) running metadata proxy after "
+                          "its initialization (if empty: L3 agent effective "
+                          "group)"))
+    ]
+
     def __init__(self, l3_agent):
         super(MetadataDriver, self).__init__(l3_agent)
         self.metadata_port = l3_agent.conf.metadata_port

neutron/tests/unit/agent/metadata/test_driver.py

@@ -37,6 +37,7 @@ class TestMetadataDriver(base.BaseTestCase):
     def setUp(self):
         super(TestMetadataDriver, self).setUp()
         cfg.CONF.register_opts(l3_config.OPTS)
+        cfg.CONF.register_opts(metadata_driver.MetadataDriver.OPTS)
         agent_config.register_root_helper(cfg.CONF)
 
     def test_metadata_nat_rules(self):