Merge "uc/deploy: try to keep passwords from undercloud-passwords.conf"

tripleoclient/tests/v1/undercloud/test_undercloud_deploy.py

@@ -57,7 +57,6 @@ class TestUndercloudDeploy(TestPluginV1):
         with mock.patch('six.moves.builtins.open', mock_open_context):
             self.cmd._update_passwords_env(self.temp_homedir)
 
-        mock_open_context.assert_called_with(pw_conf_path, 'w')
         mock_open_handle = mock_open_context()
         mock_dump.assert_called_once_with({'parameter_defaults': pw_dict},
                                           mock_open_handle,
@@ -83,16 +82,16 @@ class TestUndercloudDeploy(TestPluginV1):
         with open(t_pw_conf_path, 'w') as t_pw:
             t_pw.write('parameter_defaults: {ExistingKey: xyz}\n')
 
-        mock_open_context = mock.mock_open(
-            read_data='parameter_defaults: {ExistingKey: xyz}\n')
-        with mock.patch('six.moves.builtins.open', mock_open_context):
-            self.cmd._update_passwords_env(self.temp_homedir,
-                                           passwords={'ADefault': 456,
-                                                      'ExistingKey':
-                                                      'dontupdate'})
-        mock_open_context.assert_called_with(pw_conf_path, 'w')
+        with open(pw_conf_path, 'w') as t_pw:
+            t_pw.write('[auth]\nundercloud_db_password = abc\n')
+
+        self.cmd._update_passwords_env(self.temp_homedir,
+                                       passwords={'ADefault': 456,
+                                                  'ExistingKey':
+                                                  'dontupdate'})
         expected_dict = {'parameter_defaults': {'GeneratedPassword': 123,
                                                 'ExistingKey': 'xyz',
+                                                'MysqlRootPassword': 'abc',
                                                 'ADefault': 456}}
         mock_dump.assert_called_once_with(expected_dict,
                                           mock.ANY,

tripleoclient/v1/undercloud_deploy.py

@@ -45,6 +45,7 @@ from heatclient.common import event_utils
 from heatclient.common import template_utils
 from heatclient.common import utils as heat_utils
 from openstackclient.i18n import _
+from six.moves import configparser
 
 from tripleoclient import constants
 from tripleoclient import exceptions
@@ -111,12 +112,34 @@ class DeployUndercloud(command.Command):
         undercloud_pw_file = os.path.join(output_dir,
                                           'undercloud-passwords.conf')
         stack_env = {'parameter_defaults': {}}
+
+        # Getting passwords that were managed by instack-undercloud so
+        # we can upgrade to a containerized undercloud and keep old passwords.
+        legacy_env = {}
+        if os.path.exists(undercloud_pw_file):
+            config = configparser.ConfigParser()
+            config.read(undercloud_pw_file)
+            for k, v in config.items('auth'):
+                # Manage exceptions
+                if k == 'undercloud_db_password':
+                    k = 'MysqlRootPassword'
+                elif k == 'undercloud_rabbit_username':
+                    k = 'RabbitUserName'
+                elif k == 'undercloud_heat_encryption_key':
+                    k = 'HeatAuthEncryptionKey'
+                else:
+                    k = ''.join(i.capitalize() for i in k.split('_')[1:])
+                legacy_env[k] = v
+
         if os.path.exists(pw_file):
             with open(pw_file) as pf:
                 stack_env = yaml.safe_load(pf.read())
 
         pw = password_utils.generate_passwords(stack_env=stack_env)
         stack_env['parameter_defaults'].update(pw)
+        # Override what has been generated by tripleo-common with old passwords
+        # if any.
+        stack_env['parameter_defaults'].update(legacy_env)
 
         if passwords:
             # These passwords are the DefaultPasswords so we only