def _delete_subcloud_routes(self, context, subcloud):
"""Delete the routes to this subcloud"""
keystone_client = KeystoneClient()
# Delete subcloud's identity endpoints
keystone_client.delete_endpoints(subcloud.name)
# Delete the route to this subcloud on the management interface on
# both controllers.
management_subnet = netaddr.IPNetwork(subcloud.management_subnet)
session = keystone_client.endpoint_cache.get_session_from_token(
context.auth_token, context.project)
sysinv_client = SysinvClient(consts.DEFAULT_REGION_NAME, session)
controllers = sysinv_client.get_controller_hosts()
for controller in controllers:
management_interface = sysinv_client.get_management_interface(
controller.hostname)
if management_interface is not None:
sysinv_client.delete_route(
management_interface.uuid, str(management_subnet.ip),
management_subnet.prefixlen,
str(netaddr.IPAddress(
subcloud.systemcontroller_gateway_ip)), 1)
def delete_subcloud(self, context, subcloud_id):
"""Delete subcloud and notify orchestrators.
:param context: request context object.
:param subcloud_id: id of subcloud to delete
"""
LOG.info("Deleting subcloud %s." % subcloud_id)
# Retrieve the subcloud details from the database
subcloud = db_api.subcloud_get(context, subcloud_id)
# Semantic checking
if subcloud.management_state != consts.MANAGEMENT_UNMANAGED:
raise exceptions.SubcloudNotUnmanaged()
if subcloud.availability_status == \
consts.AVAILABILITY_ONLINE:
raise exceptions.SubcloudNotOffline()
# Inform orchestrators that subcloud has been deleted
try:
self.dcorch_rpc_client.del_subcloud(context, subcloud.name)
except RemoteError as e:
if "SubcloudNotFound" in e:
pass
# We only delete subcloud endpoints, region and user information
# in the Central Region. The subcloud is already unmanaged and powered
# down so is not accessible. Therefore set up a session with the
# Central Region Keystone ONLY.
keystone_client = KeystoneClient()
# Delete keystone endpoints for subcloud
keystone_client.delete_endpoints(subcloud.name)
keystone_client.delete_region(subcloud.name)
# Delete the routes to this subcloud
self._delete_subcloud_routes(context, subcloud)
# Remove the subcloud from the database
try:
db_api.subcloud_destroy(context, subcloud_id)
except Exception as e:
LOG.exception(e)
raise e
# Clear the offline fault associated with this subcloud as we
# are deleting it. Note that endpoint out-of-sync alarms should
# have been cleared when the subcloud was unmanaged and the endpoint
# sync statuses were set to unknown.
entity_instance_id = "subcloud=%s" % subcloud.name
try:
subcloud_offline = fm_const.FM_ALARM_ID_DC_SUBCLOUD_OFFLINE
fault = self.fm_api.get_fault(subcloud_offline, entity_instance_id)
if fault:
self.fm_api.clear_fault(subcloud_offline, entity_instance_id)
except Exception as e:
LOG.info("Problem clearing offline fault for "
"subcloud %s" % subcloud.name)
LOG.exception(e)
# Regenerate the addn_hosts_dc file
self._create_addn_hosts_dc(context)