neutron/neutron/services/l3_router
Salvatore Orlando a1b08606f2 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
2014-03-01 14:39:59 -08:00
..
README Adds support for L3 routing/NAT as a service plugin 2013-09-11 12:12:10 +02:00
__init__.py Adds support for L3 routing/NAT as a service plugin 2013-09-11 12:12:10 +02:00
l3_router_plugin.py Introduce status for floating IPs 2014-03-01 14:39:59 -08:00

README

This service plugin implements the L3 routing functionality (resources router
and floatingip) that in earlier releases before Havana was provided by core
plugins (openvswitch, linuxbridge, ... etc).

Core plugins can now choose not to implement L3 routing functionality and
instead delegate that to the L3 routing service plugin.

The required changes to a core plugin are in that case:
- Do not inherit 'l3_db.L3_NAT_db_mixin' (or its descendants like extraroute)
  anymore.
- Remove "router" from 'supported_extension_aliases'.
- Modify any 'self' references to members in L3_NAT_db_mixin to instead use
  'manager.NeutronManager.get_service_plugins().get(constants.L3_ROUTER_NAT)'
  For example,
     self.prevent_l3_port_deletion(...)
  becomes something like
     plugin = manager.NeutronManager.get_service_plugins().get(
         constants.L3_ROUTER_NAT)
     if plugin:
         plugin.prevent_l3_port_deletion(...)

If the core plugin has relied on the L3Agent the following must also be changed:
- Do not inherit 'l3_rpc_base.L3RpcCallbackMixin' in any '*RpcCallbacks' class.
- Do not be a consumer of the topics.L3PLUGIN topic for RPC.

To use the L3 routing service plugin, add
'neutron.services.l3_router.l3_router_plugin.L3RouterPlugin'
to 'service_plugins' in '/etc/neutron/neutron.conf'.
That is,
service_plugins = neutron.services.l3_router.l3_router_plugin.L3RouterPlugin