Installing Jenkins as a Service

Jenkins is a popular open-source automation server that enables developers to build, test, and deploy their software. Running Jenkins as a service allows it to start automatically on system boot and run in the background without user intervention.

Before installing Jenkins, ensure the following prerequisites are met:

• Java Development Kit (JDK) installed (version 8 or higher).
• Operating system: Windows, macOS, or a Linux distribution.
• Administrative access to the system.

3.1 Install Java

To check if Java is installed, run:

java -version

If not installed, download and install JDK from the Oracle website or use a package manager.

3.2 Download Jenkins

Download the Jenkins WAR file from the Jenkins official site.

3.3 Run Jenkins as a Service

For Linux systems, use the following commands:

sudo apt update
sudo apt install jenkins

For Windows, you can install Jenkins using the installer from the website, which sets it up as a service automatically.

After installation, Jenkins runs on http://localhost:8080. Open a web browser and access this URL. Follow the setup wizard to complete the installation.

During the setup, you'll be prompted to enter an initial admin password, which can be found in:

/var/lib/jenkins/secrets/initialAdminPassword

• Regularly back up Jenkins configuration and job data.
• Keep Jenkins and plugins up to date to avoid security vulnerabilities.
• Use a dedicated user for running Jenkins services to enhance security.
• Monitor Jenkins performance and resource usage.