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Watchtower

Watchtower A process for automating Docker container base image updates

Access

Watchtower has no web interface.

Default

By default, watchtower will watch all containers. However, sometimes only some containers should be updated.

If you need to exclude some containers, set the com.centurylinklabs.watchtower.enable label to false.

Example: go to {{ volumesroot }}/watchtower/ and run cp docker-compose.yml docker-compose.override.yml (This creates the override file for you.). Then edit the file and delete everything that is already in the docker-compose.yml file that you don't want to customize.

from this

---
version: '3'

services:
  watchtower:
    image: containrrr/watchtower
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      #- "{{ volumes_root }}/watchtower/config.json:/config.json:rw" # Only needed for Private registries
    command: --schedule "0 2 * * *" --cleanup --stop-timeout 30s
    environment:
      - TZ=Europe/Berlin

to this

---
version: '3'

services:
  watchtower:

next you want to add a label

---
version: '3'

services:
  watchtower:
    labels:
      - com.centurylinklabs.watchtower.enable=false

Run systemctl restart watchtower

Now the automatic update for the watchtower image is disabled.


Last update: June 3, 2020