Centralize config option: certificates section

Centralize config option of certificates section.
Replace oslo_conf cfg to magnum.conf.

Change-Id: I3433b1a6d5c07c10b28b657dda186a658df5c5c4
Implements: blueprint centralize-config-magnum

magnum/common/cert_manager/__init__.py

@@ -12,21 +12,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from oslo_config import cfg
 from stevedore import driver
 
-CONF = cfg.CONF
+import magnum.conf
 
-DEFAULT_CERT_MANAGER = 'barbican'
-
-cert_manager_opts = [
-    cfg.StrOpt('cert_manager_type',
-               default=DEFAULT_CERT_MANAGER,
-               help='Certificate Manager plugin. '
-                    'Defaults to {0}.'.format(DEFAULT_CERT_MANAGER))
-]
-
-CONF.register_opts(cert_manager_opts, group='certificates')
+CONF = magnum.conf.CONF
 
 _CERT_MANAGER_PLUGIN = None
 
@@ -36,5 +26,5 @@ def get_backend():
     if not _CERT_MANAGER_PLUGIN:
         _CERT_MANAGER_PLUGIN = driver.DriverManager(
             "magnum.cert_manager.backend",
-            cfg.CONF.certificates.cert_manager_type).driver
+            CONF.certificates.cert_manager_type).driver
     return _CERT_MANAGER_PLUGIN

magnum/common/cert_manager/local_cert_manager.py

@@ -16,30 +16,18 @@ import os
 from os import path
 import uuid
 
-from oslo_config import cfg
 from oslo_log import log as logging
 
 from magnum.common.cert_manager import cert_manager
 from magnum.common import exception
+import magnum.conf
 from magnum.i18n import _
 from magnum.i18n import _LE
 from magnum.i18n import _LW
 
-
 LOG = logging.getLogger(__name__)
 
-CONF = cfg.CONF
-
-TLS_STORAGE_DEFAULT = '/var/lib/magnum/certificates/'
-
-local_cert_manager_opts = [
-    cfg.StrOpt('storage_path',
-               default=TLS_STORAGE_DEFAULT,
-               help='Absolute path of the certificate storage directory. '
-                    'Defaults to /var/lib/magnum/certificates/.')
-]
-
-CONF.register_opts(local_cert_manager_opts, group='certificates')
+CONF = magnum.conf.CONF
 
 
 class Cert(cert_manager.Cert):

magnum/conf/__init__.py

@@ -17,7 +17,7 @@ from oslo_config import cfg
 
 from magnum.conf import api
 from magnum.conf import barbican
-# from magnum.conf import certificates
+from magnum.conf import certificates
 from magnum.conf import cinder
 from magnum.conf import cluster
 from magnum.conf import cluster_heat
@@ -44,7 +44,7 @@ barbican.register_opts(CONF)
 cluster.register_opts(CONF)
 cluster_templates.register_opts(CONF)
 cluster_heat.register_opts(CONF)
-# certificates.register_opts(CONF)
+certificates.register_opts(CONF)
 cinder.register_opts(CONF)
 conductor.register_opts(CONF)
 database.register_opts(CONF)

magnum/conf/certificates.py

@@ -0,0 +1,51 @@
+# 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.
+
+import itertools
+from oslo_config import cfg
+
+DEFAULT_CERT_MANAGER = 'barbican'
+TLS_STORAGE_DEFAULT = '/var/lib/magnum/certificates/'
+
+certificates_group = cfg.OptGroup(name='certificates',
+                                  title='Certificate options for the '
+                                        'cert manager.')
+
+cert_manager_opts = [
+    cfg.StrOpt('cert_manager_type',
+               default=DEFAULT_CERT_MANAGER,
+               help='Certificate Manager plugin. '
+                    'Defaults to {0}.'.format(DEFAULT_CERT_MANAGER))
+]
+
+local_cert_manager_opts = [
+    cfg.StrOpt('storage_path',
+               default=TLS_STORAGE_DEFAULT,
+               help='Absolute path of the certificate storage directory. '
+                    'Defaults to /var/lib/magnum/certificates/.')
+]
+
+ALL_OPTS = list(itertools.chain(
+    cert_manager_opts,
+    local_cert_manager_opts
+))
+
+
+def register_opts(conf):
+    conf.register_group(certificates_group)
+    conf.register_opts(ALL_OPTS, group=certificates_group)
+
+
+def list_opts():
+    return {
+        certificates_group: ALL_OPTS
+    }

magnum/opts.py

@@ -13,10 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import itertools
-
-import magnum.common.cert_manager
-from magnum.common.cert_manager import local_cert_manager
 import magnum.common.exception
 import magnum.common.x509.config
 import magnum.db
@@ -27,10 +23,6 @@ def list_opts():
     return [
         ('trust', magnum.common.keystone.trust_opts),
         ('x509', magnum.common.x509.config.x509_opts),
-        ('certificates',
-            itertools.chain(magnum.common.cert_manager.cert_manager_opts,
-                            local_cert_manager.local_cert_manager_opts,
-                            )),
         ('keystone_auth', magnum.common.keystone.keystone_auth_opts),
         ('docker_registry',
          magnum.drivers.common.template_def.docker_registry_opts)