Watchtower vs DIUN: Docker Update Tools

Should your Docker containers auto-update or just notify you? Watchtower and DIUN take fundamentally different approaches. Quick Verdict DIUN is the safer choice for most self-hosters. It notifies you when updates are available without touching your running containers, giving you full control over when and how you update. Watchtower is for people who want fully automatic updates and accept the risk that an unattended update could break a service. Overview Watchtower monitors your running Docker containers and automatically updates them when a new image is pushed to the registry. It pulls the new image, stops the old container, and restarts it with the same configuration. There is no web UI — it runs as a background daemon. DIUN (Docker Image Update Notifier) monitors Docker images for updates and sends notifications through your preferred channel (Discord, Slack, Telegram, email, webhooks, and 15+ more). It never pulls images or restarts containers. You get notified, you decide what to