create: |
    if [ -f MAIN_CONTAINER_ID ] ; then
      docker commit $(cat MAIN_CONTAINER_ID) $$docker_image:@microstep_id
    fi

apply: |
    docker tag $$docker_image:@microstep_id $$docker_image:latest

list: |
    docker images | grep $$docker_image | awk '{print $2}'

clear: |
    docker images | grep $$docker_image | awk '{print $3}' \
    | xargs -I {} bash -c "docker rmi {} | cat || true"