config options: centralize section "guestfs"

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

Change-Id: I9db186e7d665fa7ce05e806843592d739fdd9c7c
Implements: centralize-config-options-newton

nova/conf/__init__.py

@@ -41,7 +41,7 @@ from nova.conf import conductor
 from nova.conf import ephemeral_storage
 from nova.conf import floating_ips
 from nova.conf import glance
-# from nova.conf import guestfs
+from nova.conf import guestfs
 # from nova.conf import host
 from nova.conf import hyperv
 # from nova.conf import image
@@ -102,7 +102,7 @@ conductor.register_opts(CONF)
 ephemeral_storage.register_opts(CONF)
 floating_ips.register_opts(CONF)
 glance.register_opts(CONF)
-# guestfs.register_opts(CONF)
+guestfs.register_opts(CONF)
 # host.register_opts(CONF)
 hyperv.register_opts(CONF)
 # image.register_opts(CONF)

nova/conf/guestfs.py

@@ -0,0 +1,30 @@
+# Copyright 2015 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
+
+enable_guestfs_debug_opts = cfg.BoolOpt('debug',
+                                        default=False,
+                                        help='Enable guestfs debug')
+
+ALL_OPTS = [enable_guestfs_debug_opts]
+
+
+def register_opts(conf):
+    conf.register_opts(ALL_OPTS, group="guestfs")
+
+
+def list_opts():
+    return {"guestfs": ALL_OPTS}

nova/virt/disk/vfs/guestfs.py

@@ -13,11 +13,11 @@
 # under the License.
 
 from eventlet import tpool
-from oslo_config import cfg
 from oslo_log import log as logging
 from oslo_utils import importutils
 import six
 
+import nova.conf
 from nova import exception
 from nova.i18n import _
 from nova.i18n import _LW
@@ -30,14 +30,7 @@ LOG = logging.getLogger(__name__)
 guestfs = None
 forceTCG = False
 
-guestfs_opts = [
-    cfg.BoolOpt('debug',
-                default=False,
-                help='Enable guestfs debug')
-]
-
-CONF = cfg.CONF
-CONF.register_opts(guestfs_opts, group='guestfs')
+CONF = nova.conf.CONF
 
 
 def force_tcg(force=True):

nova/virt/opts.py

@@ -14,7 +14,6 @@ import itertools
 
 import nova.conf
 import nova.virt.configdrive
-import nova.virt.disk.vfs.guestfs
 import nova.virt.libvirt.driver
 import nova.virt.libvirt.imagebackend
 import nova.virt.libvirt.imagecache
@@ -55,7 +54,6 @@ def list_opts():
          itertools.chain(
              nova.virt.configdrive.configdrive_opts,
          )),
-        ('guestfs', nova.virt.disk.vfs.guestfs.guestfs_opts),
         ('libvirt',
          itertools.chain(
              nova.virt.libvirt.driver.libvirt_opts,