vmware-nsx/neutron/services/l3_router
Ihar Hrachyshka ee09d2f624 Migrate to oslo.i18n
Mostly trivial import changes.

- oslo.i18n no longer provide install() method to inject _() into
  globals(), so removed all calls to it;
- removed Babel from dependencies (it will now be grabbed by oslo.i18n);
- updated tox.ini to ignore import violations for oslo.i18n.

Change-Id: I6623d551f512fb7fe9bf35ee734ed6d4c6cbc287
2014-11-26 22:19:24 +01:00
..
brocade Migrate to oslo.i18n 2014-11-26 22:19:24 +01:00
__init__.py Empty files should not contain copyright or license 2014-10-20 00:50:32 +00:00
l3_apic.py Migrate to oslo.utils 2014-11-26 10:31:03 +01:00
l3_arista.py Migrate to oslo.i18n 2014-11-26 22:19:24 +01:00
l3_router_plugin.py Migrate to oslo.utils 2014-11-26 10:31:03 +01:00
README Adds support for L3 routing/NAT as a service plugin 2013-09-11 12:12:10 +02:00

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