DB Tech WatchTower on Pi 4

gistfile1.txt

version: '2.1'
services:
    watchtower:
        image: containrrr/watchtower
        container_name: watchtower
        volumes:
            - /var/run/docker.sock:/var/run/docker.sock
        environment:
            - TZ=America/Denver
            - WATCHTOWER_MONITOR_ONLY=true
            - WATCHTOWER_SCHEDULE=0 0 16 ? * THU
            - WATCHTOWER_CLEANUP=true
            - WATCHTOWER_NOTIFICATIONS=email
            - [email protected]
            - [email protected]
            - WATCHTOWER_NOTIFICATION_EMAIL_SERVER=smtp.gmail.com
            - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD=password
            - WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG=Pi Server Container Updates
            - [email protected]
            - WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT=587
        restart: unless-stopped