Arvados

Want to be able to create a private overlay network of Arvados instances. Goals:

• To make it easy to configure a client device to contact an Arvados appliance.
• To be able to federate with Arvados instances behind NAT gateways.

Tailscale helps solve naming and routing problems.

Notes:

You can only (easily) be on one Tailscale network at a time.

Tailscale makes connecting two devices pretty easy without having to think too hard about network topology, NAT, etc. But for local networks, there's other ways to do it, e.g. DNS-SD #22426.

For exposing Arvados through a NAT gateway, the alternative is to try and tell the router to forward ports using UPnP. This is generally pretty gross.