Add insecure_registry to osc part of the client

insecure_registry argument is not present for the template creation
command of osc, while it's present in deprecated client for years.

Change-Id: I613a772801abd32031c52627c51fff20f4701ab8

magnumclient/osc/v1/cluster_templates.py

@@ -195,6 +195,11 @@ class CreateClusterTemplate(command.ShowOne):
             action='store_true',
             default=False,
             help=_('Enable docker registry in the Cluster'))
+        parser.add_argument(
+            '--insecure-registry',
+            dest='insecure_registry',
+            help=_('The URL pointing to users own private insecure docker'
+                   'registry to deploy and run docker containers.'))
         parser.add_argument(
             '--server-type',
             dest='server_type',
@@ -268,6 +273,7 @@ class CreateClusterTemplate(command.ShowOne):
             'tls_disabled': parsed_args.tls_disabled,
             'public': parsed_args.public,
             'registry_enabled': parsed_args.registry_enabled,
+            'insecure_registry': parsed_args.insecure_registry,
             'server_type': parsed_args.server_type,
             'master_lb_enabled': parsed_args.master_lb_enabled,
         }

magnumclient/tests/osc/unit/v1/test_cluster_templates.py

@@ -46,6 +46,7 @@ class TestClusterTemplate(magnum_fakes.TestMagnumClientOSCV1):
         'no_proxy': None,
         'public': False,
         'registry_enabled': False,
+        'insecure_registry': None,
         'server_type': 'vm',
         'tls_disabled': False,
         'volume_driver': None,