version: "3"
services:
  watchtower:
    container_name: watchtower
    image: containrrr/watchtower:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    command: --interval 30
    restart: unless-stopped
    environment:
      - WATCHTOWER_NOTIFICATION_SLACK_CHANNEL="#alerts"
      - WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL="https://hooks.slack.com/services/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"
      - WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER=${HOSTNAME}
      - WATCHTOWER_NOTIFICATIONS="slack"
      - WATCHTOWER_POLL_INTERVAL=60
      - WATCHTOWER_RUN_ONCE=false
      - WATCHTOWER_WARN_ON_HEAD_FAILURE=never