Config options: Centralize debugger options

The config options of the "nova/debugger" got
moved to the new central location
"nova/conf/remote_debug.py"

Implements: blueprint centralize-config-options-newton

Change-Id: Ic0c858aac92c95dc20992c06218f9823e7e683e5

nova/conf/__init__.py

@@ -60,6 +60,7 @@ from nova.conf import network
 # from nova.conf import osapi_v21
 from nova.conf import pci
 from nova.conf import rdp
+from nova.conf import remote_debug
 from nova.conf import scheduler
 # from nova.conf import security
 from nova.conf import serial_console
@@ -136,3 +137,5 @@ wsgi.register_opts(CONF)
 xenserver.register_opts(CONF)
 # xvp.register_opts(CONF)
 # zookeeper.register_opts(CONF)
+
+remote_debug.register_cli_opts(CONF)

nova/conf/remote_debug.py

@@ -0,0 +1,46 @@
+# Copyright (c) 2016 Intel, Inc.
+# Copyright (c) 2013 OpenStack Foundation
+# 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_config import cfg
+
+debugger_group = cfg.OptGroup('remote_debug',
+    title='debugger options')
+
+host = cfg.StrOpt('host',
+    help='Debug host (IP or name) to connect. Note '
+    'that using the remote debug option changes how '
+    'Nova uses the eventlet library to support async IO. '
+    'This could result in failures that do not occur '
+    'under normal operation. Use at your own risk.')
+
+port = cfg.IntOpt('port',
+    min=1,
+    max=65535,
+    help='Debug port to connect. Note '
+    'that using the remote debug option changes how '
+    'Nova uses the eventlet library to support async IO. '
+    'This could result in failures that do not occur '
+    'under normal operation. Use at your own risk.')
+
+CLI_OPTS = [host, port]
+
+
+def register_cli_opts(conf):
+    conf.register_cli_opts(CLI_OPTS, group=debugger_group)
+
+
+def list_opts():
+    return {debugger_group: CLI_OPTS}

nova/config.py

@@ -16,18 +16,18 @@
 #    under the License.
 
 from oslo_cache import core as cache
-from oslo_config import cfg
 from oslo_db import options
 from oslo_log import log
 
 from nova.common import config
+import nova.conf
 from nova.db.sqlalchemy import api as sqlalchemy_api
-from nova import debugger
 from nova import paths
 from nova import rpc
 from nova import version
 
-CONF = cfg.CONF
+
+CONF = nova.conf.CONF
 
 _DEFAULT_SQL_CONNECTION = 'sqlite:///' + paths.state_path_def('nova.sqlite')
 
@@ -45,7 +45,6 @@ def parse_args(argv, default_config_files=None, configure_db=True,
                          sqlite_db='nova.sqlite')
     rpc.set_defaults(control_exchange='nova')
     cache.configure(CONF)
-    debugger.register_cli_opts()
     config.set_middleware_defaults()
 
     CONF(argv[1:],

nova/debugger.py

@@ -26,34 +26,9 @@ def enabled():
             '--remote_debug-port' in sys.argv)
 
 
-def register_cli_opts():
-    from oslo_config import cfg
-
-    cli_opts = [
-        cfg.StrOpt('host',
-                    help='Debug host (IP or name) to connect. Note '
-                        'that using the remote debug option changes how '
-                        'Nova uses the eventlet library to support async IO. '
-                        'This could result in failures that do not occur '
-                        'under normal operation. Use at your own risk.'),
-
-        cfg.IntOpt('port',
-                    min=1,
-                    max=65535,
-                    help='Debug port to connect. Note '
-                        'that using the remote debug option changes how '
-                        'Nova uses the eventlet library to support async IO. '
-                        'This could result in failures that do not occur '
-                        'under normal operation. Use at your own risk.')
-
-    ]
-
-    cfg.CONF.register_cli_opts(cli_opts, 'remote_debug')
-
-
 def init():
-    from oslo_config import cfg
-    CONF = cfg.CONF
+    import nova.conf
+    CONF = nova.conf.CONF
 
     # NOTE(markmc): gracefully handle the CLI options not being registered
     if 'remote_debug' not in CONF: