Add the fuel2 release clone command

This command creates a clone of the given release that is suitable to
perform upgrade on it.

Depends-On: Ib2387b9c2b74902c7289ee8f69a5f5d323ec82ca
Change-Id: If7ca2b2dfa8b133d8c6575aa403826b98215c61d

octane/fuelclient/clone_release.py

@@ -0,0 +1,42 @@
+# 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 cliff import show
+
+from fuelclient.commands import base
+from fuelclient.commands import release
+from fuelclient.common import data_utils
+
+
+class CreateUpgradeRelease(release.ReleaseMixIn, show.ShowOne,
+                           base.BaseCommand):
+    """Clone release and translate settings from the given cluster."""
+
+    columns = release.ReleaseList.columns
+
+    def get_parser(self, prog_name):
+        parser = super(CreateUpgradeRelease, self).get_parser(prog_name)
+        parser.add_argument('env_id',
+                            type=str,
+                            help='ID of the environment ready for upgrade.')
+        parser.add_argument('release_id',
+                            type=str,
+                            help='ID of the base release to create a suitable '
+                                 'for upgrade release')
+        return parser
+
+    def take_action(self, parsed_args):
+        data = self.client._entity_wrapper.connection.post_request(
+            "clusters/{0}/upgrade/clone_release/{1}"
+            .format(parsed_args.env_id, parsed_args.release_id))
+        data = data_utils.get_display_data_single(self.columns, data)
+        return (self.columns, data)

setup.cfg

@@ -53,3 +53,4 @@ fuelclient =
     env_clone = octane.fuelclient.clone_env:EnvClone
     env_move_node = octane.fuelclient.move_node:EnvMoveNode
     env_copy_vips = octane.fuelclient.copy_vips:CopyVIPs
+    release_clone = octane.fuelclient.clone_release:CreateUpgradeRelease