#!/usr/bin/env bash set -e : ${TMUX=} function clean { docker rmi $(cat $iidfile) } iidfile=$(mktemp -t docker-iidfile.XXXXXXXXXX) DOCKER_BUILDKIT=1 docker build --iidfile $iidfile --target demo-env . trap clean EXIT docker run -it --privileged --rm -e TMUX_ENTRYPOINT=$TMUX $(cat $iidfile)