gosu-get-static-docker.sh

#!/bin/sh -x
export DOCKER_PREFIX=${DOCKER_PREFIX:-/usr/local}
export DOCKER_VERSION=${DOCKER_VERSION:-1.7.1}
export DOCKER_GID=${DOCKER_GID:-999}
export DOCKER_GROUP=${DOCKER_GROUP:-docker}
gosu root:root sh -xe << EOF
    mkdir -p ${DOCKER_PREFIX}/bin
    curl -sSL https://get.docker.com/builds/$(uname -s)/$(uname -i)/docker-${DOCKER_VERSION} > ${DOCKER_PREFIX}/bin/docker
    groupadd -frg ${DOCKER_GID} ${DOCKER_GROUP}
    chown -v root:${DOCKER_GROUP} ${DOCKER_PREFIX}/bin/docker
    chmod -v +xs ${DOCKER_PREFIX}/bin/docker
    usermod -aG ${DOCKER_GROUP} ${DOCKER_MEMBER}
    docker --version
EOF