def _metadata_route_update(self, context, router_id):
"""Update metadata relative routes.
The func can only be used when there is no gateway on vdr.
"""
md_gw_data = self._get_metadata_gw_data(context, router_id)
# Setup metadata route on VDR
self._update_routes_on_tlr(
context, router_id, newnexthop=None,
metadata_gateway=md_gw_data)
if not md_gw_data:
# No more DHCP interfaces on VDR. Remove DHCP binding
nsxv_db.delete_vdr_dhcp_binding(context.session, router_id)
return md_gw_data
def remove_router_interface(self, context, router_id, interface_info):
info = super(nsx_v.NsxVPluginV2, self.plugin).remove_router_interface(
context, router_id, interface_info)
router_db = self.plugin._get_router(context, router_id)
subnet = self.plugin.get_subnet(context, info['subnet_id'])
network_id = subnet['network_id']
with locking.LockManager.get_lock(self._get_edge_id(context,
router_id)):
if router_db.gw_port and router_db.enable_snat:
plr_id = self.edge_manager.get_plr_by_tlr_id(
context, router_id)
self.plugin._update_nat_rules(context, router_db, plr_id)
# Open firewall flows on plr
self.plugin._update_subnets_and_dnat_firewall(
context, router_db, router_id=plr_id)
# Update static routes of plr
nexthop = self.plugin._get_external_attachment_info(
context, router_db)[2]
md_gw_data = self._get_metadata_gw_data(context, router_id)
self._update_routes(context, router_id, nexthop, md_gw_data)
if (subnet['enable_dhcp']
and self.plugin.metadata_proxy_handler
and not md_gw_data):
# No more DHCP interfaces on VDR. Remove DHCP binding
nsxv_db.delete_vdr_dhcp_binding(context.session, router_id)
# If DHCP is disabled, this remove cannot trigger metadata change
# as metadata is served via DHCP Edge
elif (subnet['enable_dhcp']
and self.plugin.metadata_proxy_handler):
md_gw_data = self._get_metadata_gw_data(context, router_id)
if self._metadata_cfg_required_after_port_remove(
context, router_id, subnet):
self._metadata_route_update(context, router_id)
self.plugin._update_subnets_and_dnat_firewall(context, router_db)
# Safly remove interface, VDR can have interface to only one subnet
# in a given network.
edge_utils.delete_interface(
self.nsx_v, context, router_id, network_id, dist=True)
# The network would be the last one attached to the VDR if
# md_gw_data is None. For such condition, we just keep network
# attached to the dhcp edge since the dhcp edge is a pure dhcp
# support edge now
if (self.plugin.metadata_proxy_handler and subnet['enable_dhcp']
and md_gw_data):
# Detach network from VDR-dedicated DHCP Edge
vdr_dhcp_binding = nsxv_db.get_vdr_dhcp_binding_by_vdr(
context.session, router_id)
# A case where we do not have a vdr_dhcp_binding indicates a DB
# inconsistency. We check for this anyway, in case that
# something is broken.
if vdr_dhcp_binding:
self.edge_manager.reset_sysctl_rp_filter_for_vdr_dhcp(
context, vdr_dhcp_binding['dhcp_edge_id'], network_id)
self.edge_manager.remove_network_from_dhcp_edge(
context, network_id, vdr_dhcp_binding['dhcp_edge_id'])
else:
LOG.error(_LE('VDR DHCP binding is missing for %s'),
router_id)
# Reattach to regular DHCP Edge
self.edge_manager.create_dhcp_edge_service(
context, network_id, subnet)
address_groups = (
self.plugin._create_network_dhcp_address_group(context,
network_id))
self.edge_manager.update_dhcp_edge_service(
context, network_id, address_groups=address_groups)
return info