commit e38a39ad404637ca1649cea072883aa0a4592c4f
author Lucas Alvares Gomes <lucasagomes@gmail.com> Fri May 14 09:14:24 2021 +0100
committer Lucas Alvares Gomes <lucasagomes@gmail.com> Mon May 24 09:48:35 2021 +0100
tree d4616db94d16d946029fc45c0c1bc5fb8454e9e8
parent 9ee7821e80731dc15f71f4e56233c3295497dd53

Change default network backend driver to ML2/OVN

This patch is changing the default network backend driver in DevStack to
OVN.

This is a long effort from the Neutron community that has been
discussed on previous PTGs and agreed upon.

A similar patch to this one [0] have been merged in the past but got
reverted [1] because it did break some zuul jobs. This one also include
fixes for such jobs and was verified at [2]

[0] https://review.opendev.org/c/openstack/devstack/+/735097
[1] https://review.opendev.org/c/openstack/neutron/+/775632
[2] https://review.opendev.org/c/zuul/zuul-jobs/+/791117

Change-Id: I8c2be82f33ed9f6c36f5509b3b210ee1a38e87ca
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..e1f868f 100644
--- a/lib/neutron_plugins/ml2
+++ b/lib/neutron_plugins/ml2
@@ -7,15 +7,16 @@
 _XTRACE_NEUTRON_ML2=$(set +o | grep xtrace)
 set +o xtrace
 
-# Default openvswitch L2 agent
-Q_AGENT=${Q_AGENT:-openvswitch}
+# Default OVN L2 agent
+Q_AGENT=${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=${Q_ML2_TENANT_NETWORK_TYPE:-"vxlan"}
+# For ML2/OVS select either 'gre', 'vxlan', or 'gre,vxlan'.
+# For ML2/OVN use 'geneve'.
+Q_ML2_TENANT_NETWORK_TYPE=${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 +25,7 @@
 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