commit 5c304d817682d6c807b532b50a2f105479ac3fa2
author Lucas Alvares Gomes <lucasagomes@gmail.com> Thu Jun 11 11:00:56 2020 +0100
committer Lucas Alvares Gomes <lucasagomes@gmail.com> Mon May 10 14:43:28 2021 +0100
tree 767eb61cac85ebd2ec695e3e0b45076f2467e8d2
parent 166c88b610d2007535367ebe2cf464df9273e6c5

Change Neutron's default ML2 driver to OVN

As part of the Victoria PTG the Neutron community [0] agreed on changing
the default backend driver from ML2/OVS to ML2/OVN in DevStack. A lot of
changes have been submitted towards this goal including but not limted
to:

* Moving the OVN module to DevStack:
  https://review.opendev.org/c/openstack/devstack/+/734621

* Updating the OVN module to use distro packages instead of compiling
  OVN from source: https://review.opendev.org/c/openstack/devstack/+/763402o

And now this patch is changing the the actual Q_AGENT,
Q_ML2_TENANT_NETWORK_TYPE and Q_ML2_PLUGIN_MECHANISM_DRIVERS values in
devstack to what is expected by OVN as well as updating the Zuul
templates to enable the OVN services.

[0] https://etherpad.opendev.org/p/neutron-victoria-ptg

Change-Id: I92054ce9d2ab7a42746ed5dececef583b0f8a833
Signed-off-by: Lucas Alvares Gomes <lucasagomes@gmail.com>

lib/neutron_plugins/ml2

diff --git a/lib/neutron_plugins/ml2 b/lib/neutron_plugins/ml2
index ae4b251..a58ba5c 100644
--- a/lib/neutron_plugins/ml2
+++ b/lib/neutron_plugins/ml2
@@ -8,14 +8,14 @@
 set +o xtrace
 
 # Default openvswitch L2 agent
-Q_AGENT=${Q_AGENT:-openvswitch}
+Q_AGENT=${Q_AGENT:-ovn}
 if [ -f $TOP_DIR/lib/neutron_plugins/${Q_AGENT}_agent ]; then
     source $TOP_DIR/lib/neutron_plugins/${Q_AGENT}_agent
 fi
 
 # Enable this to simply and quickly enable tunneling with ML2.
 # Select either 'gre', 'vxlan', or 'gre,vxlan'
-Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"vxlan"}
+Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"geneve"}
 # This has to be set here since the agent will set this in the config file
 if [[ "$Q_ML2_TENANT_NETWORK_TYPE" == "gre" || "$Q_ML2_TENANT_NETWORK_TYPE" == "vxlan" ]]; then
     Q_TUNNEL_TYPES=$Q_ML2_TENANT_NETWORK_TYPE
@@ -24,7 +24,7 @@
 fi
 
 # List of MechanismDrivers to load
-Q_ML2_PLUGIN_MECHANISM_DRIVERS=${Q_ML2_PLUGIN_MECHANISM_DRIVERS:-openvswitch,linuxbridge}
+Q_ML2_PLUGIN_MECHANISM_DRIVERS=${Q_ML2_PLUGIN_MECHANISM_DRIVERS:-ovn}
 # Default GRE TypeDriver options
 Q_ML2_PLUGIN_GRE_TYPE_OPTIONS=${Q_ML2_PLUGIN_GRE_TYPE_OPTIONS:-tunnel_id_ranges=$TENANT_TUNNEL_RANGES}
 # Default VXLAN TypeDriver options