Config options: centralize volume net libvirt options (12)

The config options of the "nova.conf" section "libvirt" got
moved to the new central location "nova/conf/libvirt.py".
Subsequent patches will then move another options in libvirt section.
This is the 12th patch in a long-chain patchs.

Change-Id: I5cb03ce7082e9f71ee584c4cdb2cc9a658882a9e
Co-Authored-by: Markus Zoeller <mzoeller@de.ibm.com>
Implements: blueprint centralize-config-options-newton

nova/conf/libvirt.py

@@ -343,6 +343,14 @@ libvirt_volume_iser_opts = [
                 help='Use multipath connection of the iSER volume'),
 ]
 
+libvirt_volume_net_opts = [
+    cfg.StrOpt('rbd_user',
+               help='The RADOS client name for accessing rbd volumes'),
+    cfg.StrOpt('rbd_secret_uuid',
+               help='The libvirt UUID of the secret for the rbd_user'
+                    'volumes'),
+]
+
 ALL_OPTS = list(itertools.chain(
     libvirt_general_opts,
     libvirt_imagebackend_opts,
@@ -355,6 +363,7 @@ ALL_OPTS = list(itertools.chain(
     libvirt_volume_glusterfs_opts,
     libvirt_volume_iscsi_opts,
     libvirt_volume_iser_opts,
+    libvirt_volume_net_opts,
 ))
 
 

nova/tests/unit/virt/libvirt/volume/test_net.py

@@ -11,16 +11,13 @@
 #    under the License.
 
 import mock
-from oslo_config import cfg
 
+import nova.conf
 from nova.tests.unit.virt.libvirt.volume import test_volume
 from nova.virt.libvirt import host
 from nova.virt.libvirt.volume import net
 
-CONF = cfg.CONF
-CONF.import_opt('rbd_user', 'nova.virt.libvirt.volume.net', group='libvirt')
-CONF.import_opt('rbd_secret_uuid', 'nova.virt.libvirt.volume.net',
-                group='libvirt')
+CONF = nova.conf.CONF
 
 
 class LibvirtNetVolumeDriverTestCase(

nova/virt/libvirt/imagebackend.py

@@ -45,9 +45,6 @@ from nova.virt.libvirt.storage import rbd_utils
 from nova.virt.libvirt import utils as libvirt_utils
 
 CONF = nova.conf.CONF
-CONF.import_opt('rbd_user', 'nova.virt.libvirt.volume.net', group='libvirt')
-CONF.import_opt('rbd_secret_uuid', 'nova.virt.libvirt.volume.net',
-                group='libvirt')
 
 LOG = logging.getLogger(__name__)
 IMAGE_API = image.API()

nova/virt/libvirt/volume/net.py

@@ -10,23 +10,14 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from oslo_config import cfg
-
+import nova.conf
 from nova import exception
 from nova.i18n import _
 from nova import utils
 from nova.virt.libvirt.volume import volume as libvirt_volume
 
-volume_opts = [
-    cfg.StrOpt('rbd_user',
-               help='The RADOS client name for accessing rbd volumes'),
-    cfg.StrOpt('rbd_secret_uuid',
-               help='The libvirt UUID of the secret for the rbd_user '
-                    'volumes'),
-    ]
 
-CONF = cfg.CONF
-CONF.register_opts(volume_opts, 'libvirt')
+CONF = nova.conf.CONF
 
 
 class LibvirtNetVolumeDriver(libvirt_volume.LibvirtBaseVolumeDriver):

nova/virt/opts.py

@@ -12,7 +12,6 @@
 
 import itertools
 
-import nova.virt.libvirt.volume.net
 import nova.virt.libvirt.volume.nfs
 import nova.virt.libvirt.volume.quobyte
 import nova.virt.libvirt.volume.remotefs
@@ -29,7 +28,6 @@ def list_opts():
     return [
         ('libvirt',
          itertools.chain(
-             nova.virt.libvirt.volume.net.volume_opts,
              nova.virt.libvirt.volume.nfs.volume_opts,
              nova.virt.libvirt.volume.quobyte.volume_opts,
              nova.virt.libvirt.volume.remotefs.libvirt_opts,