def _exec_event(self, event):
"""Execute an event function"""
event_fn = getattr(self, event['event_type'], None)
if event_fn is None:
raise exceptions.EventError(
error='Event type %s is not supported'
% event['event_type'])
try:
event_fn(lease_id=event['lease_id'], event_id=event['id'])
except common_ex.InvalidStatus:
now = datetime.datetime.utcnow()
if now < event['time'] + datetime.timedelta(
seconds=CONF.manager.event_max_retries * 10):
# Set the event status UNDONE for retrying the event
db_api.event_update(event['id'],
{'status': status.event.UNDONE})
else:
db_api.event_update(event['id'],
{'status': status.event.ERROR})
LOG.exception('Error occurred while handling %s event for '
'lease %s.', event['event_type'],
event['lease_id'])
except Exception:
db_api.event_update(event['id'],
{'status': status.event.ERROR})
LOG.exception('Error occurred while handling %s event for '
'lease %s.', event['event_type'], event['lease_id'])
else:
lease = db_api.lease_get(event['lease_id'])
with trusts.create_ctx_from_trust(lease['trust_id']) as ctx:
self._send_notification(
lease, ctx, events=['event.%s' % event['event_type']])
def on_start(self, resource_id):
ctx = context.current()
instance_reservation = db_api.instance_reservation_get(resource_id)
reservation_id = instance_reservation['reservation_id']
try:
self.nova.flavor_access.add_tenant_access(reservation_id,
ctx.project_id)
except nova_exceptions.ClientException:
LOG.info(
'Failed to associate flavor %(reservation_id)s '
'to project %(project_id)s', {
'reservation_id': reservation_id,
'project_id': ctx.project_id
})
raise mgr_exceptions.EventError()
pool = nova.ReservationPool()
# Dict of number of instances to reserve on a host keyed by the
# host id
allocation_map = collections.defaultdict(lambda: 0)
for allocation in db_api.host_allocation_get_all_by_values(
reservation_id=reservation_id):
host_id = allocation['compute_host_id']
allocation_map[host_id] += 1
for host_id, num in allocation_map.items():
host = db_api.host_get(host_id)
pool.add_computehost(instance_reservation['aggregate_id'],
host['service_name'],
stay_in=True)
self.placement_client.update_reservation_inventory(
host['hypervisor_hostname'], reservation_id, num)
def on_start(self, resource_id):
ctx = context.current()
instance_reservation = db_api.instance_reservation_get(resource_id)
reservation_id = instance_reservation['reservation_id']
try:
self.nova.flavor_access.add_tenant_access(reservation_id,
ctx.project_id)
except nova_exceptions.ClientException:
LOG.info('Failed to associate flavor %(reservation_id)s '
'to project %(project_id)s',
{'reservation_id': reservation_id,
'project_id': ctx.project_id})
raise mgr_exceptions.EventError()
pool = nova.ReservationPool()
for allocation in db_api.host_allocation_get_all_by_values(
reservation_id=reservation_id):
host = db_api.host_get(allocation['compute_host_id'])
pool.add_computehost(instance_reservation['aggregate_id'],
host['service_name'], stay_in=True)