After change [1], if the system has a high number of security groups
with no associated RBAC entries, a non admin user owning only one
security group will experience unacceptable response times when
listing her security groups.
Change [1] added methods get_object and get_objects to class
RbacNeutronDbObjectMixin in neutron.objects.rbac_db, which retrieve with
and admin context all the objects (networks, subnets or security groups)
in the DB and then decide in memory whether the project that made the
query has access to them or not, based on their associated RBAC
policies. This change proposes to remove those methods and revert to
their counterparts in NeutronDbObject (neutron.objects.base), which use
a DB query scoped to the project to retrieve the objects based on their
associated RBAC policies by calling [2]. In this way, the potential
number of objects that are retrieved from the DB and that have to be
converted to OVOs is greatly reduced, improving significantly the
response time to the user.
[1] https://review.opendev.org/#/c/635311
[2] 7a58374fde/neutron_lib/db/model_query.py (L100)
Change-Id: Idd303778d83089da8fbeff40e3dda2bd19008d8e
Closes-Bug: #1830679
(cherry picked from commit a240c68022)
73e3f7d281