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Diun

Notifier that alerts when Docker images receive updates

Automation & Workflows ★ 4.8k stars Easy setup MIT

Diun is a small utility that watches Docker images in registries and sends a notification when a new version becomes available, without applying updates itself. It lets administrators decide when to upgrade.

Official siteSource code

Key features

  • Watches registry images
  • Many notification channels
  • No automatic updates
  • Provider-based discovery

Pros & cons

Strengths

  • Stays in control of upgrades
  • Lightweight

Trade-offs

  • Notifies but does not update
  • Configuration needed per source

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