Add image show for openstackclient

Closes-Bug: #1751428

Change-Id: Ibfeb0765fa9dc06ef78699dc91fbbf83f31c4ed5
Signed-off-by: pengdake <19921207pq@gmail.com>

setup.cfg

@@ -64,6 +64,7 @@ openstack.container.v1 =
    appcontainer_network_attach = zunclient.osc.v1.containers:NetworkAttach
    appcontainer_image_search = zunclient.osc.v1.images:SearchImage
    appcontainer_remove_security_group = zunclient.osc.v1.containers:RemoveSecurityGroup
+   appcontainer_image_show = zunclient.osc.v1.images:ShowImage
 
 [build_sphinx]
 source-dir = doc/source

zunclient/osc/v1/images.py

@@ -119,3 +119,25 @@ class SearchImage(command.Lister):
         columns = ('ID', 'Name', 'Tags', 'Status', 'Size', 'Metadata')
         return (columns, (utils.get_item_properties(image, columns)
                           for image in images))
+
+
+class ShowImage(command.ShowOne):
+    """Describe a specific image"""
+
+    log = logging.getLogger(__name__ + ".ShowImage")
+
+    def get_parser(self, prog_name):
+        parser = super(ShowImage, self).get_parser(prog_name)
+        parser.add_argument(
+            'uuid',
+            metavar='<uuid>',
+            help='UUID of image to describe')
+        return parser
+
+    def take_action(self, parsed_args):
+        client = _get_client(self, parsed_args)
+        opts = {}
+        opts['id'] = parsed_args.uuid
+        image = client.images.get(**opts)
+        columns = _image_columns(image)
+        return columns, utils.get_item_properties(image, columns)