Platform & DevOps·Traffic into and inside the cluster
private workloads reach the internet through a shared address, and you find the thing on your bill charging per gigabyte.
NAT gateway
Also callednetwork address translation, outbound NAT
The managed component that lets instances without public addresses make outbound connections, rewriting the source address as they leave. It is a default part of nearly every private network design and one of the more common unexplained line items, because it charges for both existence and throughput. It is also a hidden capacity limit — port exhaustion under very high connection churn is a real and confusing failure.