How to setup Jenkins on Ubuntu using Docker

Posted on August 31, 2024

Jenkins is an open-source automation server that enables developers to automate various stages of their software development process, including building, testing, and deploying applications.

Key Features:

  • Continuous Integration (CI): Jenkins automates the build and test process, ensuring that code changes are validated quickly.
  • Continuous Deployment (CD): Jenkins automates the deployment process, allowing for faster and more reliable releases.
  • Extensive Plugin Ecosystem: Jenkins has a vast array of plugins that extend its functionality, including support for various programming languages, version control systems, and deployment platforms.
  • User-Friendly Interface: Jenkins provides a web-based interface for easy configuration and monitoring of automation tasks.

Benefits:

  • Faster Time-to-Market: Automate testing and deployment to release software faster.
  • Improved Quality: Catch errors early in the development process.
  • Reduced Manual Effort: Automate repetitive tasks, freeing up developers to focus on coding.

Common Use Cases:

  • Automated Testing: Run unit tests, integration tests, and UI tests automatically.
  • Deployment Automation: Automate deployment to production, staging, or testing environments.
  • Continuous Monitoring: Monitor application performance and alert teams to issues.

1) Install Docker (If not already installed)

Check this article for this step

2) Download the docker image

 docker pull jenkins/jenkins:2.426.2-lts-jdk17

3) Run the docker image

 docker run -d -p 8080:8080 -p 50000:50000 --restart=on-failure -v jenkins_home:/var/jenkins_home jenkins/jenkins:2.426.2-lts-jdk17

This will store the workspace in /var/jenkins_home. All Jenkins data lives in there – including plugins and configuration. You will probably want to make that an explicit volume so you can manage it and attach to another container for upgrades.

This will automatically create a ‘jenkins_home’ docker volume on the host machine.

Docker volumes retain their content even when the container is stopped, started, or deleted.

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