One team owns the network; every project just consumes it.
Custom mode gives deliberate IP planning; Shared VPC reconciles project-per-environment with one consistent network.
Host: meridian-shared-networkingOwns the VPC and subnets centrally
Service: meridian-shipment-prodUses host subnets directly
Service: meridian-shipment-stagingUses host subnets directly
Shared VPC vs Peering
Shared VPC: one team manages the network for everyone. Peering: two genuinely separate networks stay independently managed, connected privately.
Peering is NOT transitive — A peers with B, B peers with C, A cannot reach C without a direct A-C peering.