Introduce status for floating IPs
Add a new 'status' attribute to the floating IP resource. Extend the plugin RPC interface for allowing status updates from agents, and implement support for operational status in the L3 agent. The default behaviour for all the plugins different from neutron.services.l3_router.l3_router_plugin is to set the status of a floating IP to ACTIVE upon creation. Implements blueprint fip-op-status Change-Id: Ib0176fbcde95b0db5dfdabd4fc297d1d29c0d604
This commit is contained in:
Salvatore Orlando
parent
cdeace03d6
commit
0608b455ec
@ -37,6 +37,7 @@ from neutron.openstack.common import lockutils
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from neutron.openstack.common import log as logging
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from neutron.openstack.common import loopingcall
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from neutron.openstack.common import periodic_task
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from neutron.openstack.common import processutils
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from neutron.openstack.common.rpc import common as rpc_common
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from neutron.openstack.common.rpc import proxy
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from neutron.openstack.common import service
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@ -56,6 +57,7 @@ class L3PluginApi(proxy.RpcProxy):
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API version history:
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1.0 - Initial version.
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1.1 - Floating IP operational status updates
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"""
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@ -85,6 +87,15 @@ class L3PluginApi(proxy.RpcProxy):
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host=self.host),
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topic=self.topic)
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def update_floatingip_statuses(self, context, router_id, fip_statuses):
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"""Call the plugin update floating IPs's operational status."""
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return self.call(context,
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self.make_msg('update_floatingip_statuses',
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router_id=router_id,
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fip_statuses=fip_statuses),
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topic=self.topic,
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version='1.1')
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class RouterInfo(object):
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@ -94,6 +105,7 @@ class RouterInfo(object):
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self._snat_enabled = None
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self._snat_action = None
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self.internal_ports = []
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self.floating_ips = set()
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self.root_helper = root_helper
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self.use_namespaces = use_namespaces
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# Invoke the setter for establishing initial SNAT action
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@ -434,21 +446,41 @@ class L3NATAgent(firewall_l3_agent.FWaaSL3AgentRpcCallback, manager.Manager):
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self.external_gateway_removed(ri, ri.ex_gw_port,
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interface_name, internal_cidrs)
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# Process static routes for router
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self.routes_updated(ri)
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# Process SNAT rules for external gateway
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ri.perform_snat_action(self._handle_router_snat_rules,
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internal_cidrs, interface_name)
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# Process SNAT/DNAT rules for floating IPs
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if ex_gw_port:
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self.process_router_floating_ip_nat_rules(ri)
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fip_statuses = {}
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try:
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if ex_gw_port:
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existing_floating_ips = ri.floating_ips
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self.process_router_floating_ip_nat_rules(ri)
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ri.iptables_manager.defer_apply_off()
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# Once NAT rules for floating IPs are safely in place
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# configure their addresses on the external gateway port
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fip_statuses = self.process_router_floating_ip_addresses(
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ri, ex_gw_port)
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except Exception:
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# TODO(salv-orlando): Less broad catching
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# All floating IPs must be put in error state
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for fip in ri.router.get(l3_constants.FLOATINGIP_KEY, []):
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fip_statuses[fip] = l3_constants.FLOATINGIP_STATUS_ERROR
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ri.ex_gw_port = ex_gw_port
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self.routes_updated(ri)
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ri.iptables_manager.defer_apply_off()
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# Once NAT rules for floating IPs are safely in place
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# configure their addresses on the external gateway port
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if ex_gw_port:
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self.process_router_floating_ip_addresses(ri, ex_gw_port)
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# Identify floating IPs which were disabled
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ri.floating_ips = set(fip_statuses.keys())
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for fip_id in existing_floating_ips - ri.floating_ips:
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fip_statuses[fip_id] = l3_constants.FLOATINGIP_STATUS_DOWN
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# Update floating IP status on the neutron server
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self.plugin_rpc.update_floatingip_statuses(
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self.context, ri.router_id, fip_statuses)
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# Update ex_gw_port and enable_snat on the router info cache
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ri.ex_gw_port = ex_gw_port
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ri.enable_snat = ri.router.get('enable_snat')
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def _handle_router_snat_rules(self, ri, ex_gw_port, internal_cidrs,
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interface_name, action):
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@ -497,6 +529,7 @@ class L3NATAgent(firewall_l3_agent.FWaaSL3AgentRpcCallback, manager.Manager):
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Ensures addresses for existing floating IPs and cleans up
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those that should not longer be configured.
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"""
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fip_statuses = {}
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interface_name = self.get_external_device_name(ex_gw_port['id'])
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device = ip_lib.IPDevice(interface_name, self.root_helper,
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namespace=ri.ns_name())
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@ -512,14 +545,30 @@ class L3NATAgent(firewall_l3_agent.FWaaSL3AgentRpcCallback, manager.Manager):
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if ip_cidr not in existing_cidrs:
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net = netaddr.IPNetwork(ip_cidr)
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device.addr.add(net.version, ip_cidr, str(net.broadcast))
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self._send_gratuitous_arp_packet(ri, interface_name, fip_ip)
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try:
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device.addr.add(net.version, ip_cidr, str(net.broadcast))
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except (processutils.UnknownArgumentError,
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processutils.ProcessExecutionError):
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# any exception occurred here should cause the floating IP
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# to be set in error state
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fip_statuses[fip['id']] = (
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l3_constants.FLOATINGIP_STATUS_ERROR)
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LOG.warn(_("Unable to configure IP address for "
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"floating IP: %s"), fip['id'])
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continue
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# As GARP is processed in a distinct thread the call below
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# won't raise an exception to be handled.
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self._send_gratuitous_arp_packet(
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ri, interface_name, fip_ip)
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fip_statuses[fip['id']] = (
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l3_constants.FLOATINGIP_STATUS_ACTIVE)
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# Clean up addresses that no longer belong on the gateway interface.
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for ip_cidr in existing_cidrs - new_cidrs:
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if ip_cidr.endswith(FLOATING_IP_CIDR_SUFFIX):
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net = netaddr.IPNetwork(ip_cidr)
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device.addr.delete(net.version, ip_cidr)
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return fip_statuses
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def _get_ex_gw_port(self, ri):
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return ri.router.get('gw_port')
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@ -13,6 +13,8 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# TODO(salv-orlando): Verify if a single set of operational
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# status constants is achievable
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NET_STATUS_ACTIVE = 'ACTIVE'
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NET_STATUS_BUILD = 'BUILD'
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NET_STATUS_DOWN = 'DOWN'
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@ -23,6 +25,10 @@ PORT_STATUS_BUILD = 'BUILD'
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PORT_STATUS_DOWN = 'DOWN'
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PORT_STATUS_ERROR = 'ERROR'
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FLOATINGIP_STATUS_ACTIVE = 'ACTIVE'
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FLOATINGIP_STATUS_DOWN = 'DOWN'
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FLOATINGIP_STATUS_ERROR = 'ERROR'
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DEVICE_OWNER_ROUTER_INTF = "network:router_interface"
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DEVICE_OWNER_ROUTER_GW = "network:router_gateway"
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DEVICE_OWNER_FLOATINGIP = "network:floatingip"
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@ -68,6 +68,11 @@ class FloatingIP(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
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fixed_port_id = sa.Column(sa.String(36), sa.ForeignKey('ports.id'))
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fixed_ip_address = sa.Column(sa.String(64))
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router_id = sa.Column(sa.String(36), sa.ForeignKey('routers.id'))
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# Additional attribute for keeping track of the router where the floating
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# ip was associated in order to be able to ensure consistency even if an
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# aysnchronous backend is unavailable when the floating IP is disassociated
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last_known_router_id = sa.Column(sa.String(36))
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status = sa.Column(sa.String(16))
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class L3_NAT_db_mixin(l3.RouterPluginBase):
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@ -450,7 +455,8 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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'floating_network_id': floatingip['floating_network_id'],
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'router_id': floatingip['router_id'],
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'port_id': floatingip['fixed_port_id'],
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'fixed_ip_address': floatingip['fixed_ip_address']}
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'fixed_ip_address': floatingip['fixed_ip_address'],
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'status': floatingip['status']}
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return self._fields(res, fields)
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def _get_router_for_floatingip(self, context, internal_port,
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@ -564,6 +570,7 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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return (fip['port_id'], internal_ip_address, router_id)
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def _update_fip_assoc(self, context, fip, floatingip_db, external_port):
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previous_router_id = floatingip_db.router_id
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port_id = internal_ip_address = router_id = None
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if (('fixed_ip_address' in fip and fip['fixed_ip_address']) and
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not ('port_id' in fip and fip['port_id'])):
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@ -590,9 +597,12 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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pass
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floatingip_db.update({'fixed_ip_address': internal_ip_address,
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'fixed_port_id': port_id,
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'router_id': router_id})
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'router_id': router_id,
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'last_known_router_id': previous_router_id})
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def create_floatingip(self, context, floatingip):
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def create_floatingip(
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self, context, floatingip,
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initial_status=l3_constants.FLOATINGIP_STATUS_ACTIVE):
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fip = floatingip['floatingip']
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tenant_id = self._get_tenant_id_for_create(context, fip)
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fip_id = uuidutils.generate_uuid()
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@ -625,6 +635,7 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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floatingip_db = FloatingIP(
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id=fip_id,
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tenant_id=tenant_id,
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status=initial_status,
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floating_network_id=fip['floating_network_id'],
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floating_ip_address=floating_ip_address,
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floating_port_id=external_port['id'])
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@ -664,6 +675,13 @@ class L3_NAT_db_mixin(l3.RouterPluginBase):
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context, router_ids, 'update_floatingip')
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return self._make_floatingip_dict(floatingip_db)
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def update_floatingip_status(self, context, floatingip_id, status):
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"""Update operational status for floating IP in neutron DB."""
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# TODO(salv-orlando): Optimize avoiding fetch before update
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with context.session.begin(subtransactions=True):
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floatingip_db = self._get_floatingip(context, floatingip_id)
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floatingip_db['status'] = status
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def delete_floatingip(self, context, id):
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floatingip = self._get_floatingip(context, id)
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router_id = floatingip['router_id']
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@ -94,3 +94,30 @@ class L3RpcCallbackMixin(object):
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LOG.debug(_("External network ID returned to l3 agent: %s"),
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net_id)
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return net_id
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def update_floatingip_statuses(self, context, router_id, fip_statuses):
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"""Update operational status for a floating IP."""
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l3_plugin = manager.NeutronManager.get_service_plugins()[
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plugin_constants.L3_ROUTER_NAT]
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with context.session.begin(subtransactions=True):
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for (floatingip_id, status) in fip_statuses.iteritems():
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LOG.debug(_("New status for floating IP %(floatingip_id)s: "
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"%(status)s"), {'floatingip_id': floatingip_id,
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'status': status})
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l3_plugin.update_floatingip_status(context,
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floatingip_id,
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status)
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# Find all floating IPs known to have been the given router
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# for which an update was not received. Set them DOWN mercilessly
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# This situation might occur for some asynchronous backends if
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# notifications were missed
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known_router_fips = l3_plugin.get_floatingips(
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context, {'last_known_router_id': [router_id]})
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# Consider only floating ips which were disassociated in the API
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# FIXME(salv-orlando): Filtering in code should be avoided.
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# the plugin should offer a way to specify a null filter
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fips_to_disable = (fip['id'] for fip in known_router_fips
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if not fip['router_id'])
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for fip_id in fips_to_disable:
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l3_plugin.update_floatingip_status(
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context, fip_id, constants.FLOATINGIP_STATUS_DOWN)
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@ -0,0 +1,59 @@
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2014 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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"""floatingip_status
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Revision ID: 2eeaf963a447
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Revises: f44ab9871cd6
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Create Date: 2014-01-14 11:58:13.754747
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"""
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# revision identifiers, used by Alembic.
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revision = '2eeaf963a447'
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down_revision = 'f44ab9871cd6'
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# Change to ['*'] if this migration applies to all plugins
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migration_for_plugins = [
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'*'
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]
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from alembic import op
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import sqlalchemy as sa
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from neutron.db import migration
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def upgrade(active_plugins=None, options=None):
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if not migration.should_run(active_plugins, migration_for_plugins):
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return
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op.add_column('floatingips',
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sa.Column('last_known_router_id',
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sa.String(length=36),
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nullable=True))
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op.add_column('floatingips',
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sa.Column('status',
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sa.String(length=16),
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nullable=True))
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def downgrade(active_plugins=None, options=None):
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if not migration.should_run(active_plugins, migration_for_plugins):
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return
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op.drop_column('floatingips', 'last_known_router_id')
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op.drop_column('floatingips', 'status')
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@ -125,7 +125,9 @@ RESOURCE_ATTRIBUTE_MAP = {
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'tenant_id': {'allow_post': True, 'allow_put': False,
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'required_by_policy': True,
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'validate': {'type:string': None},
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'is_visible': True}
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'is_visible': True},
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'status': {'allow_post': False, 'allow_put': False,
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'is_visible': True},
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},
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}
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@ -37,8 +37,7 @@ from neutron.plugins.common import constants
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class L3RouterPluginRpcCallbacks(l3_rpc_base.L3RpcCallbackMixin):
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# Set RPC API version to 1.0 by default.
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RPC_API_VERSION = '1.0'
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RPC_API_VERSION = '1.1'
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def create_rpc_dispatcher(self):
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"""Get the rpc dispatcher for this manager.
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@ -91,3 +90,18 @@ class L3RouterPlugin(db_base_plugin_v2.CommonDbMixin,
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return ("L3 Router Service Plugin for basic L3 forwarding"
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" between (L2) Neutron networks and access to external"
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" networks via a NAT gateway.")
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def create_floatingip(self, context, floatingip):
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"""Create floating IP.
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:param context: Neutron request context
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:param floatingip: data fo the floating IP being created
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:returns: A floating IP object on success
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AS the l3 router plugin aysnchrounously creates floating IPs
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leveraging tehe l3 agent, the initial status fro the floating
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IP object will be DOWN.
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"""
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return super(L3RouterPlugin, self).create_floatingip(
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context, floatingip,
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initial_status=q_const.FLOATINGIP_STATUS_DOWN)
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@ -25,6 +25,7 @@ from neutron.agent.linux import interface
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from neutron.common import config as base_config
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from neutron.common import constants as l3_constants
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from neutron.common import exceptions as n_exc
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from neutron.openstack.common import processutils
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from neutron.openstack.common import uuidutils
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from neutron.tests import base
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@ -382,11 +383,14 @@ class TestBasicRouterOperations(base.BaseTestCase):
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def test_process_router(self):
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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fake_fip_id = 'fake_fip_id'
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agent.process_router_floating_ip_addresses = mock.Mock()
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agent.process_router_floating_ip_nat_rules = mock.Mock()
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agent.process_router_floating_ip_addresses.return_value = {
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fake_fip_id: 'ACTIVE'}
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router = self._prepare_router_data()
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fake_floatingips1 = {'floatingips': [
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{'id': _uuid(),
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{'id': fake_fip_id,
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'floating_ip_address': '8.8.8.8',
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'fixed_ip_address': '7.7.7.7',
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'port_id': _uuid()}]}
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@ -433,8 +437,9 @@ class TestBasicRouterOperations(base.BaseTestCase):
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@mock.patch('neutron.agent.linux.ip_lib.IPDevice')
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def test_process_router_floating_ip_addresses_add(self, IPDevice):
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fip_id = _uuid()
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fip = {
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'id': _uuid(), 'port_id': _uuid(),
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'id': fip_id, 'port_id': _uuid(),
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'floating_ip_address': '15.1.2.3',
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'fixed_ip_address': '192.168.0.1'
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}
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@ -447,8 +452,10 @@ class TestBasicRouterOperations(base.BaseTestCase):
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agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
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agent.process_router_floating_ip_addresses(ri, {'id': _uuid()})
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fip_statuses = agent.process_router_floating_ip_addresses(
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ri, {'id': _uuid()})
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self.assertEqual({fip_id: l3_constants.FLOATINGIP_STATUS_ACTIVE},
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fip_statuses)
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device.addr.add.assert_called_once_with(4, '15.1.2.3/32', '15.1.2.3')
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def test_process_router_floating_ip_nat_rules_add(self):
|
||||
@ -481,8 +488,9 @@ class TestBasicRouterOperations(base.BaseTestCase):
|
||||
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
|
||||
agent.process_router_floating_ip_addresses(ri, {'id': _uuid()})
|
||||
|
||||
fip_statuses = agent.process_router_floating_ip_addresses(
|
||||
ri, {'id': _uuid()})
|
||||
self.assertEqual({}, fip_statuses)
|
||||
device.addr.delete.assert_called_once_with(4, '15.1.2.3/32')
|
||||
|
||||
def test_process_router_floating_ip_nat_rules_remove(self):
|
||||
@ -494,13 +502,14 @@ class TestBasicRouterOperations(base.BaseTestCase):
|
||||
agent.process_router_floating_ip_nat_rules(ri)
|
||||
|
||||
nat = ri.iptables_manager.ipv4['nat']
|
||||
nat = ri.iptables_manager.ipv4['nat']
|
||||
nat = ri.iptables_manager.ipv4['nat`']
|
||||
nat.clear_rules_by_tag.assert_called_once_with('floating_ip')
|
||||
|
||||
@mock.patch('neutron.agent.linux.ip_lib.IPDevice')
|
||||
def test_process_router_floating_ip_addresses_remap(self, IPDevice):
|
||||
fip_id = _uuid()
|
||||
fip = {
|
||||
'id': _uuid(), 'port_id': _uuid(),
|
||||
'id': fip_id, 'port_id': _uuid(),
|
||||
'floating_ip_address': '15.1.2.3',
|
||||
'fixed_ip_address': '192.168.0.2'
|
||||
}
|
||||
@ -513,31 +522,55 @@ class TestBasicRouterOperations(base.BaseTestCase):
|
||||
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
|
||||
agent.process_router_floating_ip_addresses(ri, {'id': _uuid()})
|
||||
fip_statuses = agent.process_router_floating_ip_addresses(
|
||||
ri, {'id': _uuid()})
|
||||
self.assertEqual({fip_id: l3_constants.FLOATINGIP_STATUS_ACTIVE},
|
||||
fip_statuses)
|
||||
|
||||
self.assertFalse(device.addr.add.called)
|
||||
self.assertFalse(device.addr.delete.called)
|
||||
|
||||
def test_process_router_floating_ip_nat_rules_remap(self):
|
||||
@mock.patch('neutron.agent.linux.ip_lib.IPDevice')
|
||||
def test_process_router_with_disabled_floating_ip(self, IPDevice):
|
||||
fip_id = _uuid()
|
||||
fip = {
|
||||
'id': _uuid(), 'port_id': _uuid(),
|
||||
'id': fip_id, 'port_id': _uuid(),
|
||||
'floating_ip_address': '15.1.2.3',
|
||||
'fixed_ip_address': '192.168.0.2'
|
||||
}
|
||||
|
||||
ri = mock.MagicMock()
|
||||
ri.floating_ips = [fip]
|
||||
ri.router.get.return_value = []
|
||||
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
|
||||
fip_statuses = agent.process_router_floating_ip_addresses(
|
||||
ri, {'id': _uuid()})
|
||||
|
||||
self.assertIsNone(fip_statuses.get(fip_id))
|
||||
|
||||
@mock.patch('neutron.agent.linux.ip_lib.IPDevice')
|
||||
def test_process_router_floating_ip_with_device_add_error(self, IPDevice):
|
||||
IPDevice.return_value = device = mock.Mock()
|
||||
device.addr.add.side_effect = processutils.ProcessExecutionError
|
||||
device.addr.list.return_value = []
|
||||
fip_id = _uuid()
|
||||
fip = {
|
||||
'id': fip_id, 'port_id': _uuid(),
|
||||
'floating_ip_address': '15.1.2.3',
|
||||
'fixed_ip_address': '192.168.0.2'
|
||||
}
|
||||
ri = mock.MagicMock()
|
||||
ri.router.get.return_value = [fip]
|
||||
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
|
||||
agent.process_router_floating_ip_nat_rules(ri)
|
||||
fip_statuses = agent.process_router_floating_ip_addresses(
|
||||
ri, {'id': _uuid()})
|
||||
|
||||
nat = ri.iptables_manager.ipv4['nat']
|
||||
nat.clear_rules_by_tag.assert_called_once_with('floating_ip')
|
||||
rules = agent.floating_forward_rules('15.1.2.3', '192.168.0.2')
|
||||
for chain, rule in rules:
|
||||
nat.add_rule.assert_any_call(chain, rule, tag='floating_ip')
|
||||
self.assertEqual({fip_id: l3_constants.FLOATINGIP_STATUS_ERROR},
|
||||
fip_statuses)
|
||||
|
||||
def test_process_router_snat_disabled(self):
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
@ -686,6 +719,36 @@ class TestBasicRouterOperations(base.BaseTestCase):
|
||||
self.assertNotIn(
|
||||
router[l3_constants.INTERFACE_KEY][0], ri.internal_ports)
|
||||
|
||||
def test_process_router_floatingip_disabled(self):
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
with mock.patch.object(
|
||||
agent.plugin_rpc,
|
||||
'update_floatingip_statuses') as mock_update_fip_status:
|
||||
fip_id = _uuid()
|
||||
router = self._prepare_router_data(num_internal_ports=1)
|
||||
router[l3_constants.FLOATINGIP_KEY] = [
|
||||
{'id': fip_id,
|
||||
'floating_ip_address': '8.8.8.8',
|
||||
'fixed_ip_address': '7.7.7.7',
|
||||
'port_id': router[l3_constants.INTERFACE_KEY][0]['id']}]
|
||||
|
||||
ri = l3_agent.RouterInfo(router['id'], self.conf.root_helper,
|
||||
self.conf.use_namespaces, router=router)
|
||||
agent.process_router(ri)
|
||||
# Assess the call for putting the floating IP up was performed
|
||||
mock_update_fip_status.assert_called_once_with(
|
||||
mock.ANY, ri.router_id,
|
||||
{fip_id: l3_constants.FLOATINGIP_STATUS_ACTIVE})
|
||||
mock_update_fip_status.reset_mock()
|
||||
# Process the router again, this time without floating IPs
|
||||
router[l3_constants.FLOATINGIP_KEY] = []
|
||||
ri.router = router
|
||||
agent.process_router(ri)
|
||||
# Assess the call for putting the floating IP up was performed
|
||||
mock_update_fip_status.assert_called_once_with(
|
||||
mock.ANY, ri.router_id,
|
||||
{fip_id: l3_constants.FLOATINGIP_STATUS_DOWN})
|
||||
|
||||
def test_handle_router_snat_rules_add_back_jump(self):
|
||||
agent = l3_agent.L3NATAgent(HOSTNAME, self.conf)
|
||||
ri = mock.MagicMock()
|
||||
|
||||
@ -1195,7 +1195,8 @@ class L3NatTestCaseBase(L3NatTestCaseMixin):
|
||||
private_sub['subnet']['id'],
|
||||
None)
|
||||
|
||||
def test_floatingip_update(self):
|
||||
def test_floatingip_update(
|
||||
self, expected_status=l3_constants.FLOATINGIP_STATUS_ACTIVE):
|
||||
with self.port() as p:
|
||||
private_sub = {'subnet': {'id':
|
||||
p['port']['fixed_ips'][0]['subnet_id']}}
|
||||
@ -1203,6 +1204,7 @@ class L3NatTestCaseBase(L3NatTestCaseMixin):
|
||||
body = self._show('floatingips', fip['floatingip']['id'])
|
||||
self.assertIsNone(body['floatingip']['port_id'])
|
||||
self.assertIsNone(body['floatingip']['fixed_ip_address'])
|
||||
self.assertEqual(body['floatingip']['status'], expected_status)
|
||||
|
||||
port_id = p['port']['id']
|
||||
ip_address = p['port']['fixed_ips'][0]['ip_address']
|
||||
|
||||
Loading…
Reference in New Issue
Block a user