openstack/ironic-python-agent
Code Issues Proposed changes

Reboot and Poweroff fails with coreos IPA image

Browse Source 
The CoreOS IPA images do not support poweroff/reboot due to running in a
chroot. For this case, we fall back to forcing poweroff or reboot via
sysrq commands

Change-Id: I75d68b6308beba299d043e43a5fa1671b6ef3ada
Closes-Bug: #1628367
This commit is contained in:
Annie Lezil 2016-12-19 11:09:52 -08:00
parent 4cf29db7e2
commit 20dc04e5e2
3 changed files with 46 additions and 4 deletions
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10
ironic_python_agent/extensions/standby.py
View File

@ -499,7 +499,15 @@ class StandbyExtension(base.BaseAgentExtension):
except errors.CommandExecutionError as e:
LOG.warning('Failed to sync file system buffers: % s', e)
try:
utils.execute(command, check_exit_code=[0])
_, stderr = utils.execute(command, use_standard_locale=True,
check_exit_code=[0])
if 'ignoring request.' in stderr:
LOG.debug('%s command failed with error %s, '
'falling back to sysrq-trigger.', command, stderr)
if command == 'poweroff':
utils.execute("echo o > /proc/sysrq-trigger", shell=True)
elif command == 'reboot':
utils.execute("echo b > /proc/sysrq-trigger", shell=True)
except processutils.ProcessExecutionError as e:
raise errors.SystemRebootError(e.exit_code, e.stdout, e.stderr)

35
ironic_python_agent/tests/unit/extensions/test_standby.py
View File

@ -679,7 +679,34 @@ class TestStandbyExtension(test_base.BaseTestCase):
self.agent_extension._run_shutdown_command('poweroff')
calls = [mock.call('sync'),
mock.call('poweroff', check_exit_code=[0])]
mock.call('poweroff', use_standard_locale=True,
check_exit_code=[0])]
execute_mock.assert_has_calls(calls)
@mock.patch('ironic_python_agent.utils.execute', autospec=True)
def test_run_shutdown_command_valid_poweroff_sysrq(self, execute_mock):
execute_mock.side_effect = [('', ''), ('',
'Running in chroot, ignoring request.'),
('', '')]
self.agent_extension._run_shutdown_command('poweroff')
calls = [mock.call('sync'),
mock.call('poweroff', use_standard_locale=True,
check_exit_code=[0]),
mock.call("echo o > /proc/sysrq-trigger", shell=True)]
execute_mock.assert_has_calls(calls)
@mock.patch('ironic_python_agent.utils.execute', autospec=True)
def test_run_shutdown_command_valid_reboot_sysrq(self, execute_mock):
execute_mock.side_effect = [('', ''), ('',
'Running in chroot, ignoring request.'),
('', '')]
self.agent_extension._run_shutdown_command('reboot')
calls = [mock.call('sync'),
mock.call('reboot', use_standard_locale=True,
check_exit_code=[0]),
mock.call("echo b > /proc/sysrq-trigger", shell=True)]
execute_mock.assert_has_calls(calls)
@mock.patch('ironic_python_agent.utils.execute', autospec=True)
@ -689,7 +716,8 @@ class TestStandbyExtension(test_base.BaseTestCase):
success_result = self.agent_extension.run_image()
success_result.join()
calls = [mock.call('sync'),
mock.call('reboot', check_exit_code=[0])]
mock.call('reboot', use_standard_locale=True,
check_exit_code=[0])]
execute_mock.assert_has_calls(calls)
self.assertEqual('SUCCEEDED', success_result.command_status)
@ -711,7 +739,8 @@ class TestStandbyExtension(test_base.BaseTestCase):
success_result.join()
calls = [mock.call('sync'),
mock.call('poweroff', check_exit_code=[0])]
mock.call('poweroff', use_standard_locale=True,
check_exit_code=[0])]
execute_mock.assert_has_calls(calls)
self.assertEqual('SUCCEEDED', success_result.command_status)

5
releasenotes/notes/coreos_ipa_image_poweroff_reboot_in_chroot_by_sysrq-42447fc4cdd7dafe.yaml Normal file
View File

@ -0,0 +1,5 @@
---
fixes:
- Fixes a bug in the CoreOS IPA images (where IPA runs in a chroot), where
IPA could not power off or reboot properly. In this case, it will now use
SYSRQ commands to forcefully reboot or power off.