Generate CephClusterFSID for new stacks

This parameter is needed for new deployments using Ceph, but it
should not change across updates/upgrades.

Change-Id: I2ac62d47922f7dc1d37b2da313fd35f08debfab4
Closes-Bug: #1636555
Related-Bug: #1643701

tripleo_common/actions/deployment.py

@@ -14,7 +14,9 @@
 # under the License.
 import json
 import logging
+import six
 import time
+import uuid
 
 from heatclient.common import deployment_utils
 from heatclient import exc as heat_exc
@@ -150,6 +152,8 @@ class DeployStackAction(templates.ProcessTemplatesAction):
         parameters['DeployIdentifier'] = int(time.time())
         parameters['UpdateIdentifier'] = ''
         parameters['StackAction'] = 'CREATE' if stack_is_new else 'UPDATE'
+        if stack_is_new:
+            parameters['CephClusterFSID'] = six.text_type(uuid.uuid1())
 
         if 'parameter_defaults' not in wf_env.variables:
             wf_env.variables['parameter_defaults'] = {}

tripleo_common/tests/actions/test_deployment.py

@@ -194,6 +194,7 @@ class DeployStackActionTest(base.TestCase):
     def setUp(self,):
         super(DeployStackActionTest, self).setUp()
 
+    @mock.patch('uuid.uuid1')
     @mock.patch('tripleo_common.actions.deployment.time')
     @mock.patch('heatclient.common.template_utils.'
                 'process_multiple_environments_and_files')
@@ -208,7 +209,8 @@ class DeployStackActionTest(base.TestCase):
                  mock_get_object_client, mock_get_workflow_client,
                  mock_get_template_contents,
                  mock_process_multiple_environments_and_files,
-                 mock_time):
+                 mock_time,
+                 mock_uuid1):
 
         mock_ctx.return_value = mock.MagicMock()
         # setup swift
@@ -240,11 +242,15 @@ class DeployStackActionTest(base.TestCase):
         # freeze time at datetime.datetime(2016, 9, 8, 16, 24, 24)
         mock_time.time.return_value = 1473366264
 
+        # fake an uuid1 for CephClusterFSID
+        mock_uuid1.return_value = 'some-uuid1'
+
         action = deployment.DeployStackAction(1, 'overcloud')
         action.run()
 
         # verify parameters are as expected
-        expected_defaults = {'DeployIdentifier': 1473366264,
+        expected_defaults = {'CephClusterFSID': 'some-uuid1',
+                             'DeployIdentifier': 1473366264,
                              'StackAction': 'CREATE',
                              'UpdateIdentifier': '',
                              'random_existing_data': 'a_value'}