shiftleft/dind-jenkins-slave repository overview

⁠ShiftLeft dind-jenkins-slave

A Docker image which allows for running Docker in Docker (DinD). This image is meant to be used with the Jenkins Docker plugin⁠. It allows for Docker containers used as Jenkins build slaves to create and publish their own Docker images in-turn.

This is a mashup of

• jenkins/ssh-slave⁠
• tehranian/dind-jenkins-slave⁠
• evarga/jenkins-slave⁠
• jpetazzo/dind⁠

⁠Requirements

• The container must be run with --privileged in order for nested-Docker to work. There is a check box to enable this for the image within the Jenkins UI.

⁠Running

To run a Docker container

docker run -it --rm -e "JENKINS_SLAVE_SSH_PUBKEY=$(cat ~/.ssh/id_rsa.pub)" --privileged -p 2222:22 shiftleft/dind-jenkins-slave

$ ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p 2222 jenkins@localhost
$ docker run -it --rm hello-world

⁠How to use this image with Docker Plugin

To use this image with Docker Plugin⁠, you need to pass the public SSH key using environment variable JENKINS_SLAVE_SSH_PUBKEY and not as a startup argument.

In Environment field of the Docker Template (advanced section), just add:

JENKINS_SLAVE_SSH_PUBKEY=<YOUR PUBLIC SSH KEY HERE>

Don't put quotes around the public key. You should be all set.