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Bug 1940497

Summary: [Docs][OVN] Document router availability zones
Product: Red Hat OpenStack Reporter: Lucas Alvares Gomes <lmartins>
Component: documentationAssignee: Greg Rakauskas <gregraka>
Status: CLOSED NOTABUG QA Contact: RHOS Documentation Team <rhos-docs>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16.2 (Train)CC: bcafarel, gregraka, jamsmith
Target Milestone: ---Keywords: Triaged
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Hardware: Unspecified   
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Last Closed: 2021-07-19 18:45:22 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 1849571    
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Description Lucas Alvares Gomes 2021-03-18 14:54:08 UTC 
This is the documentation BZ related to the RFE: https://bugzilla.redhat.com/show_bug.cgi?id=1849571


The upstream documentation [0] needs to be imported into our downstream documentation with a few changes on the "How to configure it" section to do it via TripleO Heat Templates instead of manually running the "ovs-vsctl set" command.

For TripleO, the availability zones for OVN should be set in the "OVNCMSOptions" option in the THT (e.g [1]).

And, as context, the reason why we use the ovn-cms-option for OVN is because due to the the lack of agents in OVN some nodes (e.g networker nodes) won't have any .config files on it, so we use the local OVSDB as the place to hold this information.

[0] https://docs.openstack.org/neutron/latest/admin/ovn/router_availability_zones.html

[1] https://github.com/openstack/tripleo-heat-templates/blob/2ecab2c6126bd7768a976daa45fe70c7151d6962/environments/services/neutron-ovn-standalone.yaml#L31