version: '3.5'

services:
    app:
        image: 'containrrr/watchtower'
        restart: 'always'

        env_file:
            - 'watchtower.env'
        labels:
            - 'com.centurylinklabs.watchtower.enable=true'
        volumes:
            - '/var/run/docker.sock:/var/run/docker.sock'