Watchtower

Usage of Watchtower is recommended only because Synology does not provide a feature to auto-update containers, neither a simple notification for projects or images with tags other than latest, when a new image is available. See this discussion for more details.

• Create new image from nickfedor/watchtower

• Create new container watchtower

  • Enable auto-restart

  • Environment:

    • WATCHTOWER_CLEANUP=true

    • WATCHTOWER_SCHEDULE=0 0 2 * * *

  • Volume Settings:

    • /docker/docker.sock -> /var/run/docker.sock

Skip certain containers

Projects

You can skip certain containers (services) by adding the label com.centurylinklabs.watchtower.enable=false to the container you want to skip.

Here below an example:

services:
  redis:
    image: redis:alpine
    container_name: nextcloud-cache
    restart: unless-stopped
    volumes:
      - cache:/data
    healthcheck:
      test: redis-cli ping || exit 1
    labels:
      - com.centurylinklabs.watchtower.enable=false

Assumptions

• You have installed Container Manager

• The folder /volume1/docker has been created

References

• Watchtower – Automated Updates in Container Manager on a Synology NAS