Enabling Neutron Routed Provider Networks (segments)

The 'segments' plugin will be added to the NeutronServicePlugins.

Neutron routed networks was enabled by default[1], with the switch
to OVN it was removed[2] from the list of default service plug-ins.

It makes sense to enable the plug-in by default so that it's easy
to scale out existing provider networks without being limited by
the restrictions[3] related to scaling existing provider networks
that was created prior to enabling the service_plugin.

[1] https://review.opendev.org/562932
[2] https://review.opendev.org/593056
[3] https://opendev.org/openstack/neutron/src/branch/master/releasenotes/notes/allow-update-subnet-segment-id-association-1fb02ace27e85bb8.yaml

See for details:
https://docs.openstack.org/neutron/latest/admin/config-routed-networks.html

Co-Authored-By: Harald Jensås <hjensas@redhat.com>
Closes-Bug: #1831969
Change-Id: Ie67134719abc3b89dff19130e1557517bdc18714
Related-blueprint: tripleo-routed-networks-deployment
Signed-off-by: Bogdan Dobrelya <bdobreli@redhat.com>

deployment/neutron/neutron-base.yaml

@@ -27,7 +27,7 @@ parameters:
         from neutron.core_plugins namespace.
     type: string
   NeutronServicePlugins:
-    default: "qos,ovn-router,trunk"
+    default: "qos,ovn-router,trunk,segments"
     description: |
         Comma-separated list of service plugin entrypoints to be loaded from the
         neutron.service_plugins namespace.

environments/services-baremetal/neutron-ovn-dvr-ha.yaml

@@ -22,7 +22,7 @@ parameter_defaults:
   OVNTunnelEncapType: geneve
   NeutronTypeDrivers: 'geneve,vlan,flat'
   NeutronNetworkType: 'geneve'
-  NeutronServicePlugins: 'qos,ovn-router,trunk'
+  NeutronServicePlugins: 'qos,ovn-router,trunk,segments'
   NeutronVniRanges: ['1:65536', ]
   NeutronEnableDVR: true
   NeutronPluginExtensions: "qos,port_security,dns"

environments/services-baremetal/neutron-ovn-ha.yaml

@@ -21,7 +21,7 @@ parameter_defaults:
   OVNTunnelEncapType: geneve
   NeutronTypeDrivers: 'geneve,vlan,flat'
   NeutronNetworkType: 'geneve'
-  NeutronServicePlugins: 'qos,ovn-router,trunk'
+  NeutronServicePlugins: 'qos,ovn-router,trunk,segments'
   NeutronVniRanges: ['1:65536', ]
   NeutronPluginExtensions: "qos,port_security,dns"
   ComputeParameters:

environments/services/neutron-ovn-dvr-ha.yaml

@@ -23,7 +23,7 @@ parameter_defaults:
   OVNTunnelEncapType: geneve
   NeutronTypeDrivers: 'geneve,vlan,flat'
   NeutronNetworkType: ['geneve' , 'vlan', 'flat']
-  NeutronServicePlugins: 'qos,ovn-router,trunk'
+  NeutronServicePlugins: 'qos,ovn-router,trunk,segments'
   NeutronVniRanges: ['1:65536', ]
   NeutronRpcWorkers: 1
   NeutronEnableDVR: true

environments/services/neutron-ovn-ha.yaml

@@ -21,7 +21,7 @@ parameter_defaults:
   OVNTunnelEncapType: geneve
   NeutronTypeDrivers: 'geneve,vlan,flat'
   NeutronNetworkType: ['geneve' , 'vlan', 'flat']
-  NeutronServicePlugins: 'qos,ovn-router,trunk'
+  NeutronServicePlugins: 'qos,ovn-router,trunk,segments'
   NeutronVniRanges: ['1:65536', ]
   NeutronPluginExtensions: "qos,port_security,dns"
   NeutronRpcWorkers: 1

environments/services/neutron-ovn-standalone.yaml

@@ -23,7 +23,7 @@ parameter_defaults:
   OVNTunnelEncapType: geneve
   NeutronTypeDrivers: 'geneve,vlan,flat'
   NeutronNetworkType: ['geneve' , 'vlan', 'flat']
-  NeutronServicePlugins: 'qos,ovn-router,trunk'
+  NeutronServicePlugins: 'qos,ovn-router,trunk,segments'
   NeutronVniRanges: ['1:65536', ]
   NeutronRpcWorkers: 1
   NeutronEnableDVR: true

releasenotes/notes/neutron-routed-provider-networks-2af1220125612d6f.yaml

@@ -0,0 +1,8 @@
+---
+fixes:
+  - |
+    Adds the `Neutron Routed Provider Networks
+    <https://opendev.org/openstack/neutron/src/branch/master/releasenotes/notes/allow-update-subnet-segment-id-association-1fb02ace27e85bb8.yaml>`_
+    (``segments``) back to the list of default service plugins for the
+    overcloud.
+    Bug: `1831969 <https://bugs.launchpad.net/tripleo/+bug/1831969>`_.