You can make it as complicated as you want it to be; part of setting up a cluster is picking the networking system ("CNI"). Cloud providers often have their ow

You can make it as complicated as you want it to be; part of setting up a cluster is picking the networking system ("CNI"). Cloud providers often have their own IPAM (i.e. on Amazon, you get this: https://docs.aws.amazon.com/eks/latest/userguide/pod-networking.html; https://docs.aws.amazon.com/eks/latest/userguide/pod-network... each Pod gets an IP from your VPC, resulting in weird limits like 17 pods per instance because that's how many IP addresses you can have for that particular instance type throughout EC2).