Jenkins Installation via Docker: A Step-by-Step Guide

Installation via

Run the following commands in your terminal to install and set up Jenkins using Docker:

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docker --version # Check Docker version

docker pull jenkins/jenkins:lts # Pull the latest stable Jenkins image

docker images # List downloaded Docker images

docker run --detach --publish 8090:8080 --volume jenkins_home:/var/jenkins_home --name jenkins jenkins/jenkins:lts # Run Jenkins on localhost:8090

docker run -u 0 -d --net=host -v /home/jenkins/home:/var/jenkins_home -v /home/jenkins/root:/root jenkins/jenkins # Optional alternative setup

Accessing Jenkins and Retrieving Initial Admin Password

After running the container, retrieve the initial admin password using the command below:

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docker exec jenkins cat /var/jenkins_home/secrets/initialAdminPassword # Retrieve initial admin password

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Understanding Key Jenkins Concepts

Project or Job

• A user-configured task that Jenkins will manage.

Build

• A single execution of a project.

Build Step

• An individual task within a project.

Build Trigger

• Defines how and when a build starts (manual or automated).

Plugins

• Extend Jenkins' core functionality to meet custom requirements.

By following this guide, you can quickly set up Jenkins using Docker and start automating your development workflows. Keep exploring Jenkins features and plugins to optimize your CI/CD processes!