Watchtower, container for updating docker images

February 9, 2021

Ramatou Adamou Issa

Docker containers (update docker images using watchtower)

I found this interesting article here today and decide to implement it in my PHP project github repository

For those who already read my article, about some PHP8 new features implementation, the source code link is already available. You just need to update the repository.

git pull origin master
  • Changes added
docker-composer.yml

services:
  watchtower:
    container_name: watchtower
    hostname: watchtower
    image: containrrr/watchtower:latest
    restart: always
    environment:
      TZ: "Europe/Paris"
      WATCHTOWER_CLEANUP: "true"
      WATCHTOWER_NOTIFICATIONS: "slack"
      WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL: "https://hooks.slack.com/services/XXX/YYY/ZZZ"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      
    ....

Watchtower allows you to keep all your docker images up to date. it:

  • Search for the newest versions of your docker images
  • Update your current images and containers
  • remove unused images
  • send Slack notification

Enjoy <3 <3

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