jenkins-slave.dockerfile

FROM debian:jessie
MAINTAINER Jefferson Souza <[email protected]>

RUN apt-get -q update && \
    apt-get install -y --no-install-recommends openjdk-7-jre-headless git openssh-server && \
    apt-get -q autoremove && \
    apt-get -q clean -y && rm -rf /var/lib/apt/lists/* && rm -f /var/cache/apt/*.bin && \
    sed -i 's|session    required     pam_loginuid.so|session    optional     pam_loginuid.so|g' /etc/pam.d/sshd &&\
    mkdir -p /var/run/sshd

RUN useradd -m -d /home/jenkins -s /bin/sh jenkins &&\
    echo "jenkins:jenkins" | chpasswd && \
    groupadd --gid 999 docker && \
    usermod -aG docker jenkins && \
    gpasswd -a jenkins docker

RUN ssh-keygen -A

RUN set -x && \
    echo "UsePrivilegeSeparation no" >> /etc/ssh/sshd_config && \
    echo "PermitRootLogin no" >> /etc/ssh/sshd_config && \
    echo "AllowGroups jenkins" >> /etc/ssh/sshd_config

# Comment these lines to disable sudo
RUN echo "%jenkins ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

USER jenkins
WORKDIR /home/jenkins

USER root
ADD https://get.docker.com/builds/Linux/x86_64/docker-latest.tgz /tmp
RUN tar -xvzf /tmp/docker-latest.tgz && mv docker/* /usr/bin/ && chmod 755 /usr/bin/docker && rm -f /tmp/docker-latest.tgz

EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]