This patch introduces shared pools functionality to
Octavia. This means that with this patch, listeners and
pools will have the ability to have a N:M relationship
instead of a simple 1:1 relationship, although they must
still be associated with the same loadbalancer object.
This patch includes a schema change to the database: pools
are now associated directly to loadbalancers instead of
listeners. The migration in this patch includes ETL which
should populate this new field in the pool table correctly.
Extensive API changes were necessary to facilitate this
change. However, all the changes to the API should be
backward compatible.
This patch is a necessary precursor to adding L7 switching
functionality to Octavia.
Partially-Implements: blueprint lbaas-l7-rules
Partially-Implements: blueprint layer-7-switching
Change-Id: I797c718412e756be067dd4c304c989a4d43bb8ef
c3e97b7630