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Google Cloud Platform (GCP) Static IPs

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description Google Cloud Platform (GCP) Static IPs Overview

A reserved static external IP address in Google Cloud provides a public address that can remain associated with a service rather than changing with an ephemeral allocation. Depending on the resource, addresses have regional or global scope. They can support virtual machines and compatible load balancers, providing a consistent destination for domain records or systems that need to recognize a fixed endpoint. These addresses work within Google's cloud infrastructure and can be used with applications running on Google Kubernetes Engine.

That makes them relevant to containerized services and larger data-processing deployments that expose a public interface. Their value is address continuity, rather than an independent guarantee of speed or availability. They suit engineering teams managing production services whose networking must remain predictable as the resources behind an endpoint change.

help Google Cloud Platform (GCP) Static IPs FAQ

What is a static IP called in Google Cloud Platform?

In Google Cloud, static IPs are called reserved external IP addresses. You can reserve regional external IPs for resources like VM instances and global external IPs for some load balancing setups.

Can I keep the same IP when replacing a Compute Engine VM?

Yes, if you reserve a static external IP, you can detach and reassign it instead of relying on an ephemeral address. That is useful for DNS records, API allowlists, and firewall rules.

Are GCP static IPs useful with Google Kubernetes Engine?

Yes, GKE services and ingress setups often use reserved IPs so a load balancer keeps the same public address. This is especially useful when external partners need to whitelist a stable IP.

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