d541adb746
- Adds L3 routing/NAT service plugin - Removes L3 routing/NAT from ML2 plugin - Moves "router:external" attribute to new extension "External-net" - Introduces separate RPC topic for L3 callbacks from L3 agent Implements: blueprint quantum-l3-routing-plugin Change-Id: Id9af10c2910f9a1730b163203a68d101ffc3b282
31 lines
1.4 KiB
Plaintext
31 lines
1.4 KiB
Plaintext
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
|