This is a reference implementation of running Docker in your Docker-ized Jenkins build agent(s)
$ docker build -t YOUR_IMAGE_TAG .$ docker run -d --privileged \
--rm --name=dind_agent \
-p NEW_PORT:22 \
-e "JENKINS_AGENT_SSH_PUBKEY=[YOUR_PUBLIC_KEY]" YOUR_IMAGE_TAGPlease note, due to the nature of Docker in Docker, you MUST run the container with the --privileged parameter.
| FROM jenkins/ssh-agent:debian-jdk17 | |
| RUN apt-get update && \ | |
| apt-get upgrade -y && \ | |
| apt-get install -y sudo curl && \ | |
| curl -fsSL https://get.docker.com > docker.sh && \ | |
| bash docker.sh && \ | |
| systemctl disable docker && \ | |
| rm -f docker.sh && \ | |
| echo '#!/usr/bin/env bash' >> /usr/local/bin/new_entry_point.sh && \ | |
| echo 'sudo service docker start' >> /usr/local/bin/new_entry_point.sh && \ | |
| echo '/usr/local/bin/setup-sshd' >> /usr/local/bin/new_entry_point.sh && \ | |
| chmod 755 /usr/local/bin/new_entry_point.sh && \ | |
| apt-get clean && rm -rf /var/lib/apt/lists/* && \ | |
| echo 'jenkins ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers && \ | |
| usermod -aG docker jenkins | |
| ENTRYPOINT ["/usr/local/bin/new_entry_point.sh"] |