Open Stack

Hey folks.

Does anyone have ideas on how to interconnect different Openstack
deployments?
Consider that we have multiple Datacenters and need to interconnect tenant
networks. How could this be done in the context of OpenStack (without using
VPN) ?

We have some ideas about the usage of OVN-IC (OVN Interconnect). It looks
like a great solution to create a network layer between DCs/AZs with the
help of the OVN driver. However, Neutron does not support the Transit
Switches (OVN-IC design) that are required for this application.

We've seen references to abandoned projects like [1] [2] [3].

Does anyone use something similar in production or have an idea about how
to do it? Imagine that we need to put workloads on two different AZs that
run different Openstack installations, and we want to communicate with the
local networks without using a FIP.
I believe that the most coherent way to maintain databases consistent in
each Openstack would be an integration with Neutron, but I haven't seen any
movement on that.

Regards,
Roberto

[1] https://www.youtube.com/watch?v=GizLmSiH1Q0
[2]
https://specs.openstack.org/openstack/neutron-specs/specs/stein/neutron-interconnection.html
[3] https://opendev.org/x/neutron-interconnection

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