The patch takes OVS with conntrack support, compiles it and loads its
kernel modules. The patch steals parts from networking-ovn
project [1]. To run compilation of OVS, an environment variable
COMPILE_OVS must be set to True. Optional environment variables
OVS_REPO and OVS_BRANCH can be defined as a source of bits.
Once Neutron starts using neutron-lib, next steps will be taking
content of devstack/lib/ovs and putting it into neutron-lib project
in order to let other projects like networking-ovn to re-use the
code.
[1] https://github.com/openstack/networking-ovn/blob/master/devstack/plugin.sh#L175
Change-Id: Id2f51853a6339da72dbde7a82f94f99a4c306565
00f7313162