def simulate_compute_host_failure(unit_name, model_name):
"""Simulate compute node failure from a masakari and nova POV.
Masakari uses corosync/pacemaker to detect failure and nova check
nova-compute. Shutting down these services causes masakari and nova to
mark them as down.
:param unit_name: Juju name of unit (app/n)
:type unit_name: str
:param model_name: Name of model unit_name resides in.
:type model_name: str
"""
logging.info('Simulating failure of compute node {}'.format(unit_name))
_svc_set_systemd_restart_mode(unit_name, 'pacemaker_remote', 'no',
model_name)
_svc_control(unit_name, 'stop', ['corosync', 'nova-compute'], model_name)
compute_app = unit_name.split('/')[0]
release_pair = openstack_utils.get_current_os_release_pair(
application=compute_app)
if (openstack_utils.get_os_release(release_pair=release_pair) >=
openstack_utils.get_os_release('focal_ussuri')):
pacemaker_proc = '/usr/sbin/pacemaker-remoted'
else:
pacemaker_proc = '/usr/sbin/pacemaker_remoted'
logging.info('Sending {} a SIGTERM'.format(pacemaker_proc))
zaza.model.run_on_unit(unit_name,
'pkill -9 -f {}'.format(pacemaker_proc),
model_name=model_name)
def setUpClass(cls):
"""Run class setup for OVN charm operation tests."""
super(BaseCharmOperationTest, cls).setUpClass()
cls.services = ['NotImplemented'] # This must be overridden
cls.current_release = openstack_utils.get_os_release(
openstack_utils.get_current_os_release_pair(
cls.release_application or cls.application_name))
def setUpClass(cls):
"""Perform class one time initialization."""
super(BlueStoreCompressionCharmOperation, cls).setUpClass()
cls.current_release = zaza_openstack.get_os_release(
zaza_openstack.get_current_os_release_pair(
application='ceph-mon'))
cls.bionic_rocky = zaza_openstack.get_os_release('bionic_rocky')
def test_get_current_openstack_release_pair(self):
self.patch(
'zaza.openstack.utilities.openstack.get_current_os_versions',
new_callable=mock.MagicMock(),
name='_get_os_version')
self.patch(
'zaza.openstack.utilities.juju.get_machines_for_application',
new_callable=mock.MagicMock(),
name='_get_machines')
self.patch('zaza.openstack.utilities.juju.get_machine_series',
new_callable=mock.MagicMock(),
name='_get_machine_series')
# No machine returned
self._get_machines.return_value = []
with self.assertRaises(exceptions.ApplicationNotFound):
openstack_utils.get_current_os_release_pair()
# No series returned
self._get_machines.return_value = ['6']
self._get_machine_series.return_value = None
with self.assertRaises(exceptions.SeriesNotFound):
openstack_utils.get_current_os_release_pair()
# No OS Version returned
self._get_machine_series.return_value = 'xenial'
self._get_os_version.return_value = {}
with self.assertRaises(exceptions.OSVersionNotFound):
openstack_utils.get_current_os_release_pair()
# Normal scenario, argument passed
self._get_os_version.return_value = {'keystone': 'mitaka'}
expected = 'xenial_mitaka'
result = openstack_utils.get_current_os_release_pair('keystone')
self.assertEqual(expected, result)
# Normal scenario, default value used
self._get_os_version.return_value = {'keystone': 'mitaka'}
expected = 'xenial_mitaka'
result = openstack_utils.get_current_os_release_pair()
self.assertEqual(expected, result)
def setUpClass(cls):
"""Run class setup for OVN migration tests."""
super(OVSOVNMigrationTest, cls).setUpClass()
cls.current_release = openstack_utils.get_os_release(
openstack_utils.get_current_os_release_pair())