Jenkins Installation and Jobs

This tutorial covers Jenkins installation options, agents, and job configuration.

Jenkins installation paths

Common install options:

• Native package for Linux
• Docker container
• Homebrew on macOS
• Windows installer

For Docker:

docker run --name jenkins -p 8080:8080 -p 50000:50000 jenkins/jenkins:lts

Manage agents

Agents execute builds. The default built-in agent runs on the Jenkins controller, but you can add separate worker agents for better isolation.

Create a job with Git

1. Create a new Pipeline job.
2. Choose Pipeline script from SCM.
3. Enter your Git repository URL.
4. Define the branch and credentials.

Example Jenkinsfile:

pipeline {
  agent any
  stages {
    stage('Build') {
      steps {
        sh 'echo "Building..."'
      }
    }
  }
}

Run and inspect builds

After saving, click Build Now. Jenkins shows console output and build status.

Why jobs matter

Jobs are the building blocks of automation. They capture how your software is built, tested, and deployed so the process can be repeated reliably.