def _wait_for_shutting_down_vms(self):
"""
Wait loop checking remaining VMs in vm container
This method is helper method that highers the
probability of engine to properly acknowledge
that all VMs are terminated by host shutdown.
The VMs are shutdown by external service: libvirt-guests
The service pauses system shutdown on systemd shutdown
and gracefully shutdowns the running VMs.
This method applies only when the host is in shutdown.
If the host is running, the method ends immediately.
"""
# how long to wait before release shutdown
# we are waiting in whole seconds
# if config is not present, do not wait
timeout = config.getint('vars', 'timeout_engine_clear_vms')
# time to wait in the final phase in seconds
# it allows host to flush its final state to the engine
final_wait = 2
if not host_in_shutdown():
return
self.log.info('host in shutdown waiting')
for _ in range((timeout - final_wait) * 10):
if not self.vmContainer:
# once all VMs are cleared exit
break
time.sleep(0.1)
time.sleep(final_wait)
def _wait_for_shutting_down_vms(self):
"""
Wait loop checking remaining VMs in vm container
This method is helper method that highers the
probability of engine to properly acknowledge
that all VMs are terminated by host shutdown.
The VMs are shutdown by external service: libvirt-guests
The service pauses system shutdown on systemd shutdown
and gracefully shutdowns the running VMs.
This method applies only when the host is in shutdown.
If the host is running, the method ends immediately.
"""
# how long to wait before release shutdown
# we are waiting in whole seconds
# if config is not present, do not wait
timeout = config.getint('vars', 'timeout_engine_clear_vms')
# time to wait in the final phase in seconds
# it allows host to flush its final state to the engine
final_wait = 2
if not host_in_shutdown():
return
self.log.info('host in shutdown waiting')
for _ in range((timeout - final_wait) * 10):
if not self.vmContainer:
# once all VMs are cleared exit
break
time.sleep(0.1)
time.sleep(final_wait)
def test_host_not_in_shutdown(self):
with mock.patch('dbus.SystemBus') as mock_sysbus:
instance = mock_sysbus()
obj = instance.get_object()
obj.ListJobs.return_value = ()
in_shutdown = hostutils.host_in_shutdown()
self.assertEqual(in_shutdown, False)
def test_host_not_in_shutdown(self):
with mock.patch('dbus.SystemBus') as mock_sysbus:
instance = mock_sysbus()
obj = instance.get_object()
obj.ListJobs.return_value = ()
in_shutdown = hostutils.host_in_shutdown()
self.assertEqual(in_shutdown, False)
def test_dbus_exception(self):
with mock.patch('dbus.SystemBus') as mock_sysbus:
mock_sysbus.side_effect = dbus.DBusException()
in_shutdown = hostutils.host_in_shutdown()
self.assertEqual(in_shutdown, False)
def test_dbus_exception(self):
with mock.patch('dbus.SystemBus') as mock_sysbus:
mock_sysbus.side_effect = dbus.DBusException()
in_shutdown = hostutils.host_in_shutdown()
self.assertEqual(in_shutdown, False)
