Merge "Remove update abort"

releasenotes/notes/remove-abort-7214f376c9672644.yaml

@@ -0,0 +1,8 @@
+---
+fixes:
+  - The update abort command was introduced many releases ago. However, it is
+    not a safe operation in the context of TripleO. The TripleO Heat stack
+    could become irrepairably damage should a rollback be attempted. As such,
+    it is best to remove this functionality without a deprecation period.
+    The workaround for this command is to wait until the stack times out or
+    completes the update.

setup.cfg

@@ -77,7 +77,6 @@ mistral.actions =
     tripleo.heat_capabilities.get = tripleo_common.actions.heat_capabilities:GetCapabilitiesAction
     tripleo.heat_capabilities.update = tripleo_common.actions.heat_capabilities:UpdateCapabilitiesAction
     tripleo.package_update.clear_breakpoints = tripleo_common.actions.package_update:ClearBreakpointsAction
-    tripleo.package_update.cancel_stack_update = tripleo_common.actions.package_update:CancelStackUpdateAction
     tripleo.package_update.update_stack = tripleo_common.actions.package_update:UpdateStackAction
     tripleo.parameters.get = tripleo_common.actions.parameters:GetParametersAction
     tripleo.parameters.reset = tripleo_common.actions.parameters:ResetParametersAction

tripleo_common/_stack_update.py

@@ -79,13 +79,6 @@ class StackUpdateManager(object):
         LOG.debug('%s status: %s', self.stack.stack_name, status)
         return (status, resources)
 
-    def cancel(self):
-        LOG.info("canceling update")
-        self.heatclient.actions.cancel_update(self.stack.id)
-        # removing existing breakpoints
-        resources = self._resources_by_state()
-        self.clear_breakpoints(resources['on_breakpoint'].keys())
-
     def do_interactive_update(self):
         status, _ = self.get_status()
 
@@ -105,12 +98,8 @@ class StackUpdateManager(object):
                 user_input = six.moves.input(
                     "Breakpoint reached, continue? Regexp or "
                     "Enter=proceed (will clear %s), "
-                    "no=cancel update, C-c=quit interactive mode: "
+                    "C-c=quit interactive mode: "
                     % resources['on_breakpoint'].keys()[-1])
-                if user_input.strip().lower() == 'no':
-                    print("canceling update, doing rollback")
-                    self.cancel()
-                else:
                 refs = self._input_to_refs(
                     user_input.strip(),
                     resources['on_breakpoint'].keys())

tripleo_common/actions/package_update.py

@@ -41,19 +41,6 @@ class ClearBreakpointsAction(base.TripleOAction):
         update_manager.clear_breakpoints(self.refs)
 
 
-class CancelStackUpdateAction(base.TripleOAction):
-    def __init__(self, stack_id):
-        super(CancelStackUpdateAction, self).__init__()
-        self.stack_id = stack_id
-
-    def run(self):
-        heat = self.get_orchestration_client()
-        nova = self.get_compute_client()
-        update_manager = PackageUpdateManager(
-            heat, nova, self.stack_id, stack_fields={})
-        update_manager.cancel()
-
-
 class UpdateStackAction(templates.ProcessTemplatesAction):
 
     def __init__(self, timeout, container=constants.DEFAULT_CONTAINER_NAME):

tripleo_common/tests/actions/test_package_update.py

@@ -48,33 +48,6 @@ class ClearBreakpointsActionTest(base.TestCase):
             self.refs)
 
 
-class CancelStackUpdateActionTest(base.TestCase):
-
-    def setUp(self,):
-        super(CancelStackUpdateActionTest, self).setUp()
-        self.stack_id = 'stack_id'
-
-    @mock.patch('tripleo_common.actions.package_update.PackageUpdateManager')
-    @mock.patch('tripleo_common.actions.base.TripleOAction.'
-                'get_orchestration_client')
-    @mock.patch('tripleo_common.actions.base.TripleOAction.'
-                'get_compute_client')
-    def test_run(self, mock_compute_client,
-                 mock_orchestration_client,
-                 mock_update_manager):
-        action = package_update.CancelStackUpdateAction(self.stack_id)
-        result = action.run()
-        self.assertEqual(None, result)
-        mock_compute_client.assert_called_once()
-        mock_orchestration_client.assert_called_once()
-        mock_update_manager.assert_called_once_with(
-            mock_orchestration_client(),
-            mock_compute_client(),
-            self.stack_id,
-            stack_fields={})
-        mock_update_manager().cancel.assert_called_once()
-
-
 class UpdateStackActionTest(base.TestCase):
 
     def setUp(self,):

tripleo_common/tests/test_stack_update.py

@@ -90,14 +90,6 @@ class StackUpdateManagerTest(base.TestCase):
         self.assertEqual(good, [])
         self.assertEqual(bad, ['resource_id'])
 
-    def test_cancel(self):
-        self.stack_update_manager.cancel()
-        self.heatclient.actions.cancel_update.assert_called_once_with('123')
-        self.heatclient.resources.signal.assert_called_once_with(
-            stack_id='123',
-            resource_name='logical_id',
-            data={'unset_hook': 'pre-update'})
-
     def test_intput_to_refs_regexp(self):
         result = self.stack_update_manager._input_to_refs(
             'instance_name.*', ['instance_id'])

workbooks/package_update.yaml

@@ -74,36 +74,3 @@ workflows:
                 execution: <% execution() %>
         on-success:
           - fail: <% $.get('status') = "FAILED" %>
-
-  cancel_stack_update:
-    description: Cancel a currently running stack update
-
-    input:
-      - stack_id
-      - queue_name: tripleo
-
-    tasks:
-      cancel_stack_update:
-        action: tripleo.package_update.cancel_stack_update stack_id=<% $.stack_id %>
-        on-success: send_message
-        on-error: set_cancel_stack_update_failed
-
-      set_cancel_stack_update_failed:
-        on-success: send_message
-        publish:
-          status: FAILED
-          message: <% task(cancel_stack_update).result %>
-
-      send_message:
-        action: zaqar.queue_post
-        input:
-          queue_name: <% $.queue_name %>
-          messages:
-            body:
-              type: tripleo.package_update.v1.cancel_stack_update
-              payload:
-                status: <% $.get('status', 'SUCCESS') %>
-                message: <% $.get('message', '') %>
-                execution: <% execution() %>
-        on-success:
-          - fail: <% $.get('status') = "FAILED" %>