Socat hack

00_socat_Dockerfile

FROM debian:jessie

RUN apt-get update && apt-get install -y socat && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/* && rm -fr *Release* *Sources* *Packages* && \
    truncate -s 0 /var/log/*log

ENV SSH_AUTH_PROXY_PORT 1234

COPY ./start /
RUN adduser vagrant --shell /bin/bash --disabled-password --gecos ""
RUN chown vagrant:vagrant /start && chmod 700 /start

USER vagrant
CMD ["/start"]

01_start

#!/usr/bin/env bash

socat TCP4-LISTEN:$SSH_AUTH_PROXY_PORT,fork UNIX-CLIENT:$SSH_AUTH_SOCK

03_build_and_run

docker build -t gyre007/socat .

sudo docker run -d --net=host -v $(readlink -f $SSH_AUTH_SOCK):/ssh-agent -e SSH_AUTH_SOCK=/ssh-agent gyre007/socat

04_app_onbuild_dockerfile

FROM rubyappimg:3.0

# SSH proxy settings
ENV SSH_AUTH_SOCK /tmp/ssh-auth
ENV SSH_AUTH_PROXY_PORT 1234

RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app

ONBUILD COPY Gemfile /usr/src/app/
ONBUILD COPY Gemfile.lock /usr/src/app/

# Hack to install private gems
ONBUILD RUN socat UNIX-LISTEN:$SSH_AUTH_SOCK,fork TCP4:$(ip route|awk '/default/ {print $3}'):$SSH_AUTH_PROXY_PORT & bundle install

ONBUILD COPY . /usr/src/app

CMD ["bundle", "exec"]

05_Makefile

# You need to start SSH agent on the build host - Jenkins has a plugin for that
# eval `ssh-agent -s` && ssh-add
 
ssh-socat:
	docker run -d --net=host --name ssh-socat -v $(readlink -f $SSH_AUTH_SOCK):/ssh-agent -e SSH_AUTH_SOCK=/ssh-agent gyre007/socat
 
dockerbuild: ssh-socat
	docker build -t "gyre007/app:onbuild" - < ./docker/Dockerfile.onbuild
	docker build -t "gyre007/app:v1" .
	docker stop ssh-socat