def recreate_vdr_dhcp_edge(context, plugin, edge_manager, vdr_router_id):
"""Handle the edge recreation of a VDR router DHCP.
"""
# delete the old bindings
nsxv_db.delete_vdr_dhcp_binding(context.session, vdr_router_id)
# Add each interface port of this router to a new edge:
intf_ports = plugin._get_port_by_device_id(context, vdr_router_id,
l3_db.DEVICE_OWNER_ROUTER_INTF)
for port in intf_ports:
fixed_ips = port.get("fixed_ips", [])
if len(fixed_ips) > 0:
fixed_ip = fixed_ips[0]
subnet_id = fixed_ip['subnet_id']
subnet = plugin.get_subnet(context, subnet_id)
do_metadata = False
for fixed_ip in fixed_ips:
if fixed_ip['ip_address'] == subnet['gateway_ip']:
do_metadata = True
if do_metadata:
edge_manager.configure_dhcp_for_vdr_network(
context, subnet['network_id'], vdr_router_id)
new_binding = nsxv_db.get_vdr_dhcp_binding_by_vdr(context.session,
vdr_router_id)
if new_binding:
LOG.info("VDR router %(vdr_id)s was moved to edge %(edge_id)s", {
'vdr_id': vdr_router_id,
'edge_id': new_binding['dhcp_edge_id']
})
else:
LOG.error("VDR router %(vdr_id)s was not moved to a new edge",
{'vdr_id': vdr_router_id})
def delete_router(self, context, router_id):
self.edge_manager.delete_lrouter(context, router_id, dist=True)
# This should address cases where the binding remains due to breakage
if nsxv_db.get_vdr_dhcp_binding_by_vdr(context.session, router_id):
LOG.warning("DHCP bind wasn't cleaned for router %s. "
"Cleaning up entry", router_id)
nsxv_db.delete_vdr_dhcp_binding(context.session, router_id)
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']
vdr_dhcp_binding = nsxv_db.get_vdr_dhcp_binding_by_vdr(
context.session, router_id)
sids = self.plugin.get_subnets(context,
filters={'network_id': [network_id],
'enable_dhcp': [True]},
fields=['id'])
is_dhcp_network = len(sids) > 0
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 DHCP is disabled, this remove cannot trigger metadata change
# as metadata is served via DHCP Edge
elif (is_dhcp_network
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)
if self.plugin.metadata_proxy_handler and subnet['enable_dhcp']:
self._attach_network_to_regular_dhcp(
context, router_id, network_id, subnet, vdr_dhcp_binding)
return info
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
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