Apr 25
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Go Systemd Watchdog Tutorial | Auto-Restart Deadlocked Goroutines & Build Self-Healing Services Struggling with stuck goroutines, deadlocks, or Go services that keep “running” but stop doing real work? In this tutorial, you’ll learn how to use the systemd watchdog to automatically detect failures and restart your Go application—turning it into a self-healing service. We walk step-by-step through a real implementation using the go-systemd/daemon package, showing how your app can send heartbeat signals (WATCHDOG=1) and readiness notifications (READY=1) directly to systemd. By the end of this video, you’ll understand how to: Detect hung or deadlocked Go services automatically Send watchdog heartbeats from your Go application Configure systemd (Type=notify, WatchdogSec, Restart=on-failure) Build resilient, production-ready Go services with minimal overhead This approach is lightweight, powerful, and widely used in Linux production environments—perfect for backend services, microservices, and long-running processes.