neutron

History

Inessa Vasilevskaya 2f4d7aa96f Make code follow log translation guideline Since Pike log messages should not be translated. This patch removes calls to i18n _LC, _LI, _LE, _LW from logging logic throughout the code. Translators definition from neutron._i18n is removed as well. This patch also removes log translation verification from ignore directive in tox.ini. Change-Id: If9aa76fcf121c0e61a7c08088006c5873faee56e (cherry picked from commit `7322bd6efb`)		2017-08-14 10:53:33 -07:00
..
service_providers	use service type constants from neutron_lib plugins	2017-06-27 15:16:05 -06:00
README	Adopt neutron-lib plugin directory	2016-11-23 04:45:33 -07:00
__init__.py	Empty files should not contain copyright or license	2014-10-20 00:50:32 +00:00
l3_router_plugin.py	Make code follow log translation guideline	2017-08-14 10:53:33 -07:00

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
  'directory.get_plugin(constants.L3)'
  For example,
     self.prevent_l3_port_deletion(...)
  becomes something like
     plugin = directory.get_plugin(constants.L3)
     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