The shared network
The foundation everything else sits on. Most teams never built this on purpose, which is why the AI project turns into an argument later.
- Hub-and-spoke or transit network in one cloud, built as code so it can be rebuilt
- Private DNS resolution, tiered — local zones, enterprise forwarding, inspected egress
- Egress firewall with traffic inspection, sized so it does not become the bottleneck
- RBAC and workload identity, so nothing runs on a static key
You end up with one place traffic is inspected, one place names resolve, one place permissions are decided.
What that looks like