def test_clear_deferred_hook(self):
deferred_events.set_deferred_hook('config-changed')
deferred_events.set_deferred_hook('leader-settings-changed')
self.assertEqual(deferred_events.get_deferred_hooks(),
['config-changed', 'leader-settings-changed'])
deferred_events.clear_deferred_hook('leader-settings-changed')
self.assertEqual(deferred_events.get_deferred_hooks(),
['config-changed'])
def _run_deferred_hooks():
"""Run supported deferred hooks as needed.
Run supported deferred hooks as needed. If support for deferring a new
hook is added to the charm then this method will need updating.
"""
if not deferred_events.is_restart_permitted():
deferred_hooks = deferred_events.get_deferred_hooks()
if deferred_hooks and 'config-changed' in deferred_hooks:
neutron_ovs_hooks.config_changed(check_deferred_restarts=False)
deferred_events.clear_deferred_hook('config-changed')
def install(self, check_deferred_events=True):
"""Run install if permitted.
:param check_deferred_events: Whether to check if restarts are
permitted before running hook.
:type check_deferred_events: bool
"""
changed = reactive.flags.is_flag_set(
'config.changed.enable-auto-restarts')
# Run method if enable-auto-restarts has changed, irrespective of what
# it was changed to. This ensure that this method is not immediately
# deferred when enable-auto-restarts is initially set to False.
if ((not check_deferred_events) or changed or
deferred_events.is_restart_permitted()):
deferred_events.clear_deferred_hook('install')
super().install()
else:
deferred_events.set_deferred_hook('install')
def _run_deferred_hooks():
"""Run supported deferred hooks as needed.
Run supported deferred hooks as needed. If support for deferring a new
hook is added to the charm then this method will need updating.
"""
if not deferred_events.is_restart_permitted():
if 'config-changed' in deferred_events.get_deferred_hooks():
log("Running hook config-changed", level=INFO)
rabbitmq_server_relations.config_changed(
check_deferred_restarts=False)
deferred_events.clear_deferred_hook('config-changed')
if 'amqp-relation-changed' in deferred_events.get_deferred_hooks():
log("Running hook amqp-relation-changed", level=INFO)
# update_clients cycles through amqp relations running
# amqp-relation-changed hook.
rabbitmq_server_relations.update_clients(
check_deferred_restarts=False)
deferred_events.clear_deferred_hook('amqp-relation-changed')
log("Remaining hooks: {}".format(deferred_events.get_deferred_hooks()),
level=INFO)
def configure_ovs(self, sb_conn, mlockall_changed,
check_deferred_events=True):
"""Run configure_ovs if permitted.
:param sb_conn: Comma separated string of OVSDB connection methods.
:type sb_conn: str
:param mlockall_changed: Whether the mlockall param has changed.
:type mlockall_changed: bool
:param check_deferred_events: Whether to check if restarts are
permitted before running hook.
:type check_deferred_events: bool
"""
changed = reactive.flags.is_flag_set(
'config.changed.enable-auto-restarts')
# Run method if enable-auto-restarts has changed, irrespective of what
# it was changed to. This ensure that this method is not immediately
# deferred when enable-auto-restarts is initially set to False.
if ((not check_deferred_events) or changed or
deferred_events.is_restart_permitted()):
deferred_events.clear_deferred_hook('configure_ovs')
super().configure_ovs(sb_conn, mlockall_changed)
else:
deferred_events.set_deferred_hook('configure_ovs')