Building Docker Images with Jenkins

Manually building Docker images can be slow, inconsistent, and prone to errors. This is especially true in a team environment or when you have frequent code changes.

Automation is key to reliable and efficient software delivery. In this lesson, we'll learn how to integrate Jenkins with Docker to automate image creation and pushing.

For Jenkins to build Docker images, it needs to interact with a Docker daemon. This means the Docker client must be installed on the machine or agent where your Jenkins job will run.

You'll also need:

• A running Jenkins server (from Lesson 1)
• Access to a Docker registry (e.g., Docker Hub)
• A sample application and its Dockerfile