[KptMarchewa]

I would love something like networking-as-a-service. My ignorant ass do not understand the specifics related to it. I would love to option to specify that service A should be able to call service B irregardless of IP schemes, peering, firewalls, service discovery and 1000 other layers.

[ecliptik]

Tailscale [1] can do this. I've always had a limit of how much networking I can grok, and Taiscale basically let's me run a 90s style LAN across clouds and my local network like they're all connected to the same switch and VLAN. No port forwarding, firewall rules, or subnet management.

It can be made even more secure with some relatively incompatible ACLs sprinkled in too.

1. https://tailscale.com/

[JohnMakin]

The problem with your request is there's a million ways to do that, some much less secure than others - I could satisfy your request by putting service B's security group wide open to 0.0.0.0/0, but then every other possible service could also reach it.