# Watchtower — auto-pull updated images and restart containers
# Prerequisites: docker login git.thewichersfamily.com on the Pi first.
#
# To limit to specific containers only, add this label to them:
#   com.centurylinklabs.watchtower.enable: "true"
# Then add WATCHTOWER_LABEL_ENABLE=true below.

services:
  watchtower:
    image: containrrr/watchtower:latest
    container_name: watchtower
    restart: unless-stopped
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /root/.docker/config.json:/config.json:ro
    environment:
      - WATCHTOWER_POLL_INTERVAL=300     # check every 5 min
      - WATCHTOWER_CLEANUP=true          # remove old image layers after update
      - WATCHTOWER_INCLUDE_STOPPED=false
      # Optional ntfy notification on updates:
      # - WATCHTOWER_NOTIFICATION_URL=generic+https://ntfy.thewichersfamily.com/watchtower