$ docker build -t gatling-docker_gatling . --no-cache

$ docker run -it gatling-docker_gatling
bash-4.2# <Ctrl> + P, Q

$ docker ps
CONTAINER ID        IMAGE                             COMMAND                  CREATED             STATUS              PORTS                      NAMES
26ced7a8dc98        gatling-docker_gatling            "/bin/bash"              12 seconds ago      Up 11 seconds                                  kind_stallman

$ container=$(docker ps | grep gatling\-docker | awk '{print $1}')
$ docker cp ${container}:/var/gatling/conf .
$ docker cp ${container}:/var/gatling/results .
$ docker cp ${container}:/var/gatling/user\-files .

$ docker stop ${container}

$ docker-compose up -d
$ docker-compose exec gatling bash -l

bash-4.2# gatling.sh

$ open results/user-files-XXX/index.html