docker-make-client-tarball

#!/bin/bash

image_name=mktarball
container_name=mktarball$$

progdir=$(dirname "$0")

myuid=$(id -u)
docker_is_podman=false
docker version | grep -q "Docker Engine" || docker_is_podman=true

if $docker_is_podman && [[ $myuid -ne 0 ]]; then
    docker="sudo podman"
else
    docker=docker
fi


if ! $docker image inspect ${image_name} &>/dev/null; then
    $docker build -t${image_name} "$progdir"
fi

mkdir -p output
tmp_output_dir=$(mktemp -d "${TMPDIR:-/tmp}/mktarball-XXXXXX")
$docker run --privileged -it --name $container_name  \
    -v "$(cd "$progdir"; pwd):/tarball-client:ro"  -v "$tmp_output_dir:/output:rw" \
    -e "myuid=$myuid" \
    -w /output \
    ${image_name} sh -c '
    /tarball-client/make-client-tarball "$@"; ret=$?
    chown $myuid * 2>/dev/null
    exit $ret' sh "$@"; ret=$?

if [[ $ret != 0 ]]; then
    echo "Failed with code $ret."
    echo "Output (if any) has been left in $tmp_output_dir."
    echo "Investigate the error with:"
    echo "      $docker start $container_name && $docker exec -it $container_name bash"
    echo "once done, remove the container with:"
    echo "      $docker rm -f $container_name"
    exit $ret
else
    echo "Successful."
    if mv "$tmp_output_dir"/* .; then
        echo "Tarballs have been created in the current directory"
        rm -rf "$tmp_output_dir"
    else
        echo "Error transferring output."
        echo "Output has been left in $tmp_output_dir."
    fi
    rmdir output &>/dev/null || :
    $docker stop $container_name &>/dev/null || :
    $docker rm $container_name >/dev/null
fi