Using Docker containers for your Jenkins build nodes

To use Docker containers for the Jenkins build agents, you need to do a few things to your Jenkins configuration:

• Build a new Docker image that can act as a Jenkins build agent, and is capable of building Docker images (of course)
• Push the new image to a Docker registry
• Turn off the default Jenkins build agents
• Install the Docker plugin for Jenkins
• Configure a new cloud to enable Dockerized build agents

Building the Docker image

Let's get started. The first thing we want to do is build our specialized Docker image that can be used for our Jenkins agents. To do this, we are going to use the skills we learned in Chapter 3, Creating Docker Images, to create Docker images...