Auto Update (Watchtower)

Automated Docker container updater that monitors and updates running containers.

Features

• Automatically updates Docker containers to the latest images
• Cleans up old images after updates
• Label-based filtering for selective updates
• Configurable update intervals

Quick Start

docker compose up -d

Configuration

Command Options

The container runs with the following options:

• --interval 300 - Check for updates every 5 minutes (300 seconds)
• --label-enable - Only update containers with the enable label
• --cleanup - Remove old images after updating

Enabling Updates for Containers

Add this label to containers you want auto-updated:

labels:
  - 'com.centurylinklabs.watchtower.enable=true'

Volumes

Host Path	Container Path	Description
/var/run/docker.sock	/var/run/docker.sock	Docker socket for container management
/root/.docker/config.json	/config.json	Registry authentication (optional)

Links

• Watchtower Documentation
• GitHub Repository