Add OSC Plugin for openstack appcontainer show

This change implements the "openstack appcontainer show" command
 Based on existing zun command: zun show

Partially Implements:blueprint zun-osc-plugin

Change-Id: Ib03be2f3c41f48cfff9972a51f38f1ff401ae5c8

setup.cfg

@@ -31,6 +31,9 @@ console_scripts =
 openstack.cli.extension =
     container = zunclient.osc.plugin
 
+openstack.container.v1 =
+   appcontainer_show = zunclient.osc.v1.containers:ShowContainer
+
 [build_sphinx]
 source-dir = doc/source
 build-dir = doc/build

zunclient/osc/v1/containers.py

@@ -0,0 +1,47 @@
+# 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 logging
+
+from osc_lib.command import command
+from osc_lib import utils
+
+
+def _container_columns(container):
+    del container._info['links']
+    return container._info.keys()
+
+
+def _get_client(obj, parsed_args):
+    obj.log.debug("take_action(%s)" % parsed_args)
+    return obj.app.client_manager.container
+
+
+class ShowContainer(command.ShowOne):
+    """Show a container"""
+
+    log = logging.getLogger(__name__ + ".ShowContainer")
+
+    def get_parser(self, prog_name):
+        parser = super(ShowContainer, self).get_parser(prog_name)
+        parser.add_argument(
+            'container',
+            metavar='<container>',
+            help='ID or name of the container to show.')
+        return parser
+
+    def take_action(self, parsed_args):
+        client = _get_client(self, parsed_args)
+        container = parsed_args.container
+        container = client.containers.get(container)
+        columns = _container_columns(container)
+        return columns, utils.get_item_properties(container, columns)