Open Stack

hi,

today i managed to play with l3 flavors.
i wrote a crude patch to implement midonet flavor. [1]

[1] https://review.openstack.org/#/c/483174/

a good news is it's somehow working.

a bad news is it has a lot of issues, as you can see in TODO comments
in the patch.
given these issues, now i tend to think it's cleaner to introduce
ml2-like precommit/postcommit driver api (or its equivalent via
callbacks) rather than using these existing notifications.

how do you think?