I actually did mine using Dockerfile HEALTHCHECK (Search the page.).

Dockerfile exerpt: ADD healthcheck.sh /usr/local/bin/healthcheck.sh RUN chmod +x /usr/local/bin/healthcheck.sh HEALTHCHECK --interval=30s --timeout=12s --start-period=10s --retries=3 \ CMD /usr/local/bin/healthcheck.sh

healthcheck.sh: cat healthcheck.sh #!/bin/bash HOME_IP="<<<< PUT YOUR IP HERE >>>" VPN_IP=$(curl -s ipinfo.io/ip) echo $HOME_IP echo $VPN_IP

if [ "$HOME_IP" == "$VPN_IP" ]; then
  echo "ERROR: Home IP (hard coded into this script as ${HOME_IP}) is the same 
  as your VPN IP."
  exit 1
fi

I then have a crontab which runs every minute on the Docker host: */1 * * * * /usr/local/bin/healthcheck_transmission_checker.sh

healthcheck_transmission_checker.sh:

!/bin/bash

log(){
    echo "$1" | logger -t [$0]
}

is_running="$(docker inspect --format='{{json .State.Running}}' transmission)"

case $is_running in
    "true")
        #log "Transmission is running."
            health_status=$(docker inspect --format='{{json .State.Health.Status}}' transmission)
        #log "Transmission health: $health_status"
        if [ $health_status == "\"unhealthy\"" ]; then
            log "Transmission is currently unhealthy."
        log "STOPPING THE TRANSMISSION CONTAINER."
        docker stop transmission
    fi
    ;;
"false")
    log "Is not running."
    # TODO: Should add an email alert here at somepoint.
    ;;
*) log "Unknown state";;   
esac