Dockerfile

FROM alpine:3.6
MAINTAINER Yusuke KUOKA <kuoka@chatwork.com>

# Use the latest versions of the Docker and Docker-compose
ENV DOCKER_VERSION=17.05.0-ce \
    DOCKER_COMPOSE_VERSION=1.14.0-rc2

# Install Docker, Docker Compose
RUN apk --update --no-cache \
        add curl device-mapper mkinitfs zsh e2fsprogs e2fsprogs-extra iptables && \
        curl https://get.docker.com/builds/Linux/x86_64/docker-${DOCKER_VERSION}.tgz | tar zx && \
        mv /docker/* /bin/ && chmod +x /bin/docker* \

        # Install Docker Compose
        && \
        apk add py-pip && \
        pip install docker-compose==${DOCKER_COMPOSE_VERSION} && \

        # Download entrykit
        cd /bin/ && \
        curl -L https://github.com/progrium/entrykit/releases/download/v0.4.0/entrykit_0.4.0_Linux_x86_64.tgz | tar zxv


RUN chmod +x /bin/entrykit && entrykit --symlink

COPY ./docker-compose.yml /src/

WORKDIR /src

RUN echo $'#!/bin/zsh \n\
/bin/docker daemon' > /bin/docker-daemon && chmod +x /bin/docker-daemon

RUN echo $'#!/bin/zsh \n\
docker info && \n\
/usr/bin/docker-compose pull && \n\
echo Cloning /var/lib/docker to /cached-graph... && \n\
ls -lah /var/lib/docker' > /bin/docker-compose-pull && chmod +x /bin/docker-compose-pull

ENV PREHOOK_PRINT=cat\ /src/docker-compose.yml
ENV SWITCH_PULL="codep docker-daemon docker-compose-pull"
ENV SWITCH_SHELL=zsh
ENV CODEP_DAEMON=/bin/docker\ daemon
ENV CODEP_COMPOSE=/usr/bin/docker-compose\ up

# Include useful functions to start/stop docker daemon in garden-runc containers on Concourse CI
# Its usage would be something like: source /docker.lib.sh && start_docker "" "" "-g=$(pwd)/graph"
COPY docker-lib.sh /docker-lib.sh

ENTRYPOINT ["entrykit", "-e"]