Docker Volume sharing

Dockerfile

FROM          docker:5000/wheezy-ruby

# install deps
RUN           apt-get install -y qt4-qmake libqtwebkit-dev libcurl4-openssl-dev

RUN           mkdir -p /bundle /rails

RUN           apt-get install -y ssh
RUN           mkdir -p /var/run/sshd

RUN           mkdir -p /root/.ssh
RUN           echo "Host github.com\n\tStrictHostKeyChecking no\n" >> /root/.ssh/config
RUN           echo "root:docker" | chpasswd

VOLUME        ["/rails", "/bundle"]
ENTRYPOINT    ["/usr/sbin/sshd", "-D"]
WORKDIR       /rails
EXPOSE        22

Makefile

all: build

build:
        docker build -rm -t docker:5000/bundle .

run:
        -docker run -name bundle -v `pwd`/../..:/rails -v /bundle -d -p 22 docker:5000/bundle

stop:
        docker stop bundle

clean:
        docker rm -v bundle
        
bundle:
        sshpass -p "docker" ssh root@localhost -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p `docker port bundle 22 | cut -d':' -f2` -A 'bundle install --gemfile=/rails/Gemfile --path=/bundle'
        docker commit bundle docker:5000/bundle