openstack/ironic
Code Issues Proposed changes

Enable priority overrides to enable/disable steps

Browse Source 
Generic way to configure clean step priorites feature
( https://review.opendev.org/c/openstack/ironic/+/744117 ) enabled support
for customising clean step priorities for any clean step by setting a
configuration option. However, due to an error in code, it was not possible
to use this feature to enable/disable steps entirely using this option
as overrides were applied too late, after the disabled steps were already
filtered out.

This change fixes this error, making it possible to use step priority
override configuration option to enable/disable steps as required.

Story: 2009105
Change-Id: If3c01e6e4e8cedfe053e78fab9632bfff3682b06
This commit is contained in:
Jacob Anders 2021-08-09 18:56:37 +10:00
parent 8434b56766
commit 71481ac483
3 changed files with 50 additions and 2 deletions
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11
ironic/conductor/steps.py
View File

@ -121,15 +121,22 @@ def _get_steps(task, interfaces, get_method, enabled=False,
for interface in interfaces:
interface = getattr(task.driver, interface)
if interface:
interface_steps = [x for x in getattr(interface, get_method)(task)
if not enabled or x['priority'] > 0]
# NOTE(janders) get all steps to start with, regardless of whether
# enabled is True and priority is zero or not; we need to apply
# priority overrides prior to filtering out disabled steps
interface_steps = [x for x in getattr(interface, get_method)(task)]
steps.extend(interface_steps)
# Iterate over steps to apply prio overrides if set
if prio_overrides is not None:
for step in steps:
override_key = '%(interface)s.%(step)s' % step
override_value = prio_overrides.get(override_key)
if override_value:
step["priority"] = int(override_value)
# NOTE(janders) If enabled is set to True, we filter out steps with zero
# priority now, after applying priority overrides
if enabled:
steps = [x for x in steps if not (x.get('priority') == 0)]
if sort_step_key:
steps = _sorted_steps(steps, sort_step_key)
return steps

32
ironic/tests/unit/conductor/test_steps.py
View File

@ -768,6 +768,38 @@ class NodeCleaningStepsTestCase(db_base.DbTestCase):
self.assertEqual(expected_step_priorities, steps)
@mock.patch('ironic.drivers.modules.fake.FakeDeploy.get_clean_steps',
autospec=True)
@mock.patch('ironic.drivers.modules.fake.FakePower.get_clean_steps',
autospec=True)
def test__get_cleaning_steps_priority_override_disable(self,
mock_power_steps,
mock_deploy_steps):
# Test clean_step_priority_override
cfg.CONF.set_override('clean_step_priority_override',
["deploy.erase_disks:0",
"power.update_firmware:0",
"deploy.update_firmware:0", ],
'conductor')
node = obj_utils.create_test_node(
self.context, driver='fake-hardware',
provision_state=states.CLEANING,
target_provision_state=states.AVAILABLE)
mock_power_steps.return_value = [self.power_update]
mock_deploy_steps.return_value = [self.deploy_erase,
self.deploy_update,
self.deploy_raid]
with task_manager.acquire(
self.context, node.uuid, shared=True) as task:
steps = conductor_steps._get_cleaning_steps(task, enabled=True)
expected_step_priorities = []
self.assertEqual(expected_step_priorities, steps)
@mock.patch.object(conductor_steps, '_validate_user_clean_steps',
autospec=True)
@mock.patch.object(conductor_steps, '_get_cleaning_steps', autospec=True)

9
releasenotes/notes/fix-step-priority-overrides-edecff2a6c68dcac.yaml Normal file
View File

@ -0,0 +1,9 @@
---
fixes:
- |
Resolve issue where ``[conductor]clean_step_priority_override`` values
are applied too late, after disabled steps have been already filtered out.
With this change, priority overrides are applied prior to filtering out
disabled steps, so that this configuration option can use used to enable
or disable steps (in particular clean steps) in addition to changing
priorities they are run with.