How to Install Jenkins on CentOS 8


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How to Install Jenkins on CentOS 8

Jenkins is an open-source automation server widely used for continuous integration and continuous delivery (CI/CD). It helps automate the building, testing, and deployment of software projects. Jenkins enables teams to accelerate software development, reduce errors, and increase productivity by providing an automated and customizable platform for building, testing, and deploying applications.

Here are the steps to install Jenkins on CentOS 8:

  1. Update your system: Run the following command to update your system packages:
sudo dnf update
  1. Install Java Development Kit (JDK): Jenkins requires Java to run. Install JDK using the following command:
sudo dnf install java-11-openjdk-devel
  1. Add the Jenkins repository: Import the Jenkins repository GPG key and add the repository using the following commands:
sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
  1. Install Jenkins: Use the following command to install Jenkins:
sudo dnf install jenkins
  1. Enable and start Jenkins service: Enable Jenkins to start on boot and start the service using the following commands:
sudo systemctl enable jenkins
sudo systemctl start jenkins
  1. Access Jenkins web interface: Open your web browser and navigate to http://your_server_ip_or_domain:8080. You will be prompted to enter an initial admin password.
  2. Retrieve the initial admin password: Use the following command to retrieve the password:
sudo cat /var/lib/jenkins/secrets/initialAdminPassword
  1. Follow the on-screen instructions: Enter the initial admin password in the Jenkins web interface and follow the setup wizard to complete the installation.

You have successfully installed Jenkins on CentOS 8. You can now start using Jenkins to automate your CI/CD workflows and streamline your software development process.

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