server-group-list support 'all_projects' parameter

Supporting 'all_projects' in server-group-list so that
admin users can list other tenant's server groups.

Change-Id: Ie50288464ebc6585590a1a74efa8804584771ebc
Closes-Bug: #1454523

novaclient/tests/unit/v2/test_server_groups.py

@@ -31,6 +31,13 @@ class ServerGroupsTest(utils.FixturedTestCase):
             self.assertTrue(isinstance(server_group,
                                        server_groups.ServerGroup))
 
+    def test_list_server_groups_with_all_projects(self):
+        result = self.cs.server_groups.list(all_projects=True)
+        self.assert_called('GET', '/os-server-groups?all_projects')
+        for server_group in result:
+            self.assertTrue(isinstance(server_group,
+                                       server_groups.ServerGroup))
+
     def test_create_server_group(self):
         kwargs = {'name': 'ig1',
                   'policies': ['anti-affinity']}

novaclient/tests/unit/v2/test_shell.py

@@ -2405,6 +2405,14 @@ class ShellTest(utils.TestCase):
         self.assert_called('DELETE', '/os-server-groups/56789')
         self.assert_called('DELETE', '/os-server-groups/12345', pos=-2)
 
+    def test_list_server_group(self):
+        self.run_command('server-group-list')
+        self.assert_called('GET', '/os-server-groups')
+
+    def test_list_server_group_with_all_projects(self):
+        self.run_command('server-group-list --all-projects')
+        self.assert_called('GET', '/os-server-groups?all_projects')
+
 
 class ShellTestV11(ShellTest):
     FAKE_ENV = {

novaclient/v2/server_groups.py

@@ -39,12 +39,13 @@ class ServerGroupsManager(base.ManagerWithFind):
     """
     resource_class = ServerGroup
 
-    def list(self):
+    def list(self, all_projects=False):
         """Get a list of all server groups.
 
         :rtype: list of :class:`ServerGroup`.
         """
-        return self._list('/os-server-groups', 'server_groups')
+        all = '?all_projects' if all_projects else ''
+        return self._list('/os-server-groups%s' % all, 'server_groups')
 
     def get(self, id):
         """Get a specific server group.

novaclient/v2/shell.py

@@ -4350,9 +4350,15 @@ def _print_server_group_details(server_group):
     utils.print_list(server_group, columns)
 
 
+@cliutils.arg(
+    '--all-projects',
+    dest='all_projects',
+    action='store_true',
+    default=False,
+    help=_('Display server groups from all projects (Admin only).'))
 def do_server_group_list(cs, args):
     """Print a list of all server groups."""
-    server_groups = cs.server_groups.list()
+    server_groups = cs.server_groups.list(args.all_projects)
     _print_server_group_details(server_groups)