neutron

History

Rodolfo Alonso Hernandez 4109ee9bb4 Use the new network HA parameter This patch implements the new network HA boolean field API extension. This field is an input only parameter for POST operations (creation). By default is "False". When enabled, the Neutron server will create a ``ha_router_networks`` register in the same transaction of the network creation. If by any circumstance (a race condition, for example), another ``ha_router_networks`` exists in the same project, a ``DBDuplicateEntry`` exception will be raised and the transaction will be rolled back. Partial-Bug: #2016198 Change-Id: Ie42c13ecbe4abcad9229b71f6942e393fd0f2e4e		2023-08-25 08:43:37 +00:00
..
service_providers	Fix some pylint indentation warnings	2022-12-01 16:21:37 +00:00
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	Use the new network HA parameter	2023-08-25 08:43:37 +00:00

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