docker-compose.watcher.yml

services:
  watchtower:
    image: containrrr/watchtower
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock # So that Watchtower can update other containers
      - $HOME/.docker/config.json:/config.json # Get Docker Hub credentials from here
    command: --include-stopped --revive-stopped impresso-middle-layer impresso-user-admin impresso-frontend impresso-middle-layer-public impresso-celery impresso-recsys impresso-datalab impresso-iiif-widget
    restart: always
    environment:
      WATCHTOWER_POLL_INTERVAL: 300 # Check every 5 minutes
      WATCHTOWER_CLEANUP: true # remove old images after updating
      WATCHTOWER_NOTIFICATION_URL: ${WEBHOOK_URL}
      WATCHTOWER_NOTIFICATION_REPORT: "true"
      WATCHTOWER_NOTIFICATION_TEMPLATE: >
            {{- if .Report -}}
            {{- with .Report -}}
                  {{- if ( or .Updated .Failed ) -}}
            {{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
                  {{- range .Updated}}
            - {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
                  {{- end -}}
                  {{- range .Failed}}
            - {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
                  {{- end -}}
                  {{- end -}}
            {{- end -}}
            {{- end -}}
  # Restart unhealthy containers (combined with healthcheck policies in docker-compose.yml)
  autoheal:
    image: willfarrell/autoheal:latest
    tty: true
    container_name: autoheal
    restart: unless-stopped
    environment:
      - AUTOHEAL_CONTAINER_LABEL=all
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock