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Bug 1694213 - Compute Nodes Need br-ex for OVN
Summary: Compute Nodes Need br-ex for OVN
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-tripleo-heat-templates
Version: 15.0 (Stein)
Hardware: Unspecified
OS: Unspecified
Target Milestone: ga
: 15.0 (Stein)
Assignee: Dan Sneddon
QA Contact: Sasha Smolyak
: 1698653 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2019-03-29 19:31 UTC by Dan Sneddon
Modified: 2019-04-15 19:00 UTC (History)
4 users (show)

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System ID Priority Status Summary Last Updated
Launchpad 1822367 None None None 2019-03-29 19:31:37 UTC

Description Dan Sneddon 2019-03-29 19:31:38 UTC
Description of problem:
OVN uses distributed routing by default, similar to how ML2/OVS did DVR. This means that the compute nodes need a br-ex bridge by default, just like the controllers, but with no IP.

Version-Release number of selected component (if applicable):
OSP 15

How reproducible:

Steps to Reproduce:
1. Deploy with existing configs

Actual results:
Unless the "compute-dvr.yaml" template is used with the multiple-nics templates, the Compute nodes will have no br-ex and external routing does not work.

Expected results:
Compute nodes should have a br-ex bridge (or a different name if the NeutronBridgeMappings are not "datacentre:br-ex").

Additional info:
We will have multiple releases that need to support both OVS and OVN. We may want to create a mechanism where the bridge is enabled via flag, so that either option can be easily deployed.

Comment 3 Bob Fournier 2019-04-11 14:19:03 UTC
*** Bug 1698653 has been marked as a duplicate of this bug. ***

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