Blog: Graceful Shutdowns in Go
Graceful shutdown patterns for Go HTTP servers are essential for zero-downtime deployments. Using Go's os/signal, context, and http.Server.Shutdown, you can intercept SIGTERM/SIGINT signals and orchestrate an orderly shutdown that completes in-flight requests before releasing resources. The post covers a foundational signal-handling pattern, a production-hardened approach with a ResourceManager coordinating database connections and worker pools, active connection tracking via http.Server.ConnState, progress monitoring during drain, integration testing for shutdown behavior, and common pitfalls like missing shutdown timeouts, ignoring context cancellation, wrong resource close order, and missing Kubernetes preStop hooks.
