A comparison of Kubernetes Ingress and Gateway API, focusing on their key differences. Both use controllers deployed to namespaces and expose services via load balancers, but Gateway API introduces modularity by splitting the control plane into GatewayClass, Gateway, and routing resources. Unlike Ingress, which consolidates all HTTP routing rules in a single YAML file, Gateway API separates concerns across infrastructure engineers, Kubernetes admins, and application teams. This modularity also enables better RBAC enforcement and the ability to split or share data planes across namespaces.
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