Reset power state upon adoption failure

When adoption fails, we should back out the power state
so we don't accidently save a state that shouldn't be
preserved due to the failure.

Change-Id: I4647d0141fc639d49ccb0ef195577f18cd35bd30
Story: 2007901
Task: 40447

ironic/conductor/manager.py

@@ -1764,6 +1764,8 @@ class ConductorManager(base_manager.BaseConductorManager):
             msg = (_('Error while attempting to adopt node %(node)s: '
                      '%(err)s.') % {'node': node.uuid, 'err': err})
             LOG.error(msg)
+            # Wipe power state from being preserved as it is likely invalid.
+            node.power_state = states.NOSTATE
             node.last_error = msg
             task.process_event('fail')
 

ironic/tests/unit/conductor/test_manager.py

@@ -7061,7 +7061,13 @@ class DoNodeAdoptionTestCase(mgr_utils.ServiceSetUpMixin, db_base.DbTestCase):
         self._start_service()
         node = obj_utils.create_test_node(
             self.context, driver='fake-hardware',
-            provision_state=states.ADOPTING)
+            provision_state=states.ADOPTING,
+            power_state=states.POWER_ON)
+        # NOTE(TheJulia): When nodes are created for adoption, they
+        # would have no power state. Under normal circumstances
+        # during validate the node object is updated with power state
+        # however we need to make sure that we wipe preserved state
+        # as part of failure handling.
         task = task_manager.TaskManager(self.context, node.uuid)
 
         self.service._do_adoption(task)
@@ -7075,6 +7081,7 @@ class DoNodeAdoptionTestCase(mgr_utils.ServiceSetUpMixin, db_base.DbTestCase):
         self.assertFalse(mock_start_console.called)
         self.assertTrue(mock_boot_validate.called)
         self.assertIn('is_whole_disk_image', task.node.driver_internal_info)
+        self.assertEqual(states.NOSTATE, node.power_state)
 
     @mock.patch('ironic.drivers.modules.fake.FakeBoot.validate', autospec=True)
     @mock.patch('ironic.drivers.modules.fake.FakeConsole.start_console',

releasenotes/notes/unsave-power-state-on-adopt-failed-09194c8269c779de.yaml

@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Fixes the preservation of potentially incorrect power state
+    information when adoption process fails. Power state is now
+    wiped as part of the failure handling process instead of
+    being preserved.