a730bcca33
The _update_nova_vm_name_cache() call will be invoked every 60 secs by default by this looping thread. And at the end of this API, it will call _notify_port_update_bulk() so that those affected ports can pick up the right VM names through get_gbp_details(). While running some tempest tests, some VMs are short-lived and happened to be deleted right before we are calling the _notify_port_update_bulk() API. This resulted in the PortNotFound exception being thrown. By setting this stop_on_exception parameter to False, we will make sure this looping thread will continue to run when we run into a race condition like this. Change-Id: I23b357c5f5345d0b3daa16e99bfe8613aa23a5b3
Group Based Policy (GBP) provides declarative abstractions for achieving scalable intent-based infrastructure automation.
GBP complements the OpenStack networking model with the notion of policies that can be applied between groups of network endpoints. As users look beyond basic connectivity, richer network services with diverse implementations and network properties are naturally expressed as policies. Examples include service chaining, QoS, path properties, access control, etc.
GBP allows application administrators to express their networking requirements using a Group and a Policy Rules-Set abstraction. The specifics of policy rendering are left to the underlying pluggable policy driver.
GBP model also supports a redirect operation that makes it easy to abstract and consume complex network service chains and graphs.
Checkout the GBP wiki page for more detailed information: <https://wiki.openstack.org/wiki/GroupBasedPolicy>
The latest code is available at: <http://git.openstack.org/cgit/openstack/group-based-policy>.
GBP project management (blueprints, bugs) is done via Launchpad: <https://launchpad.net/group-based-policy>
For help using or hacking on GBP, you can send mail to <mailto:openstack-dev@lists.openstack.org>.
Acronyms used in code for brevity:
- PT: Policy Target
- PTG: Policy Target Group
- PR: Policy Rule
- PRS: Policy Rule Set
- L2P: L2 Policy
- L3P: L3 Policy
- NSP: Network Service Policy
- EP: External Policy
- ES: External Segment
- SC: Service Chain
- SP: Service Profile