Jenkins to GitHub Actions path - Mini Project: Build & Apply

Jenkins to GitHub Actions Path

📖 Scenario: You work in a team that uses Jenkins for continuous integration. Now, your team wants to move the build process to GitHub Actions for better integration with GitHub repositories.This project will guide you step-by-step to create a simple Jenkins pipeline and then translate it into a GitHub Actions workflow.

🎯 Goal: Build a Jenkins pipeline script that runs a simple build step, then create a GitHub Actions workflow file that performs the same build step.

📋 What You'll Learn

Create a Jenkins pipeline script with a build stage

Add a variable for the build command

Write a GitHub Actions workflow YAML file using the build command

Display the final GitHub Actions workflow content

💡 Why This Matters

🌍 Real World

Many teams migrate from Jenkins to GitHub Actions to simplify CI/CD and integrate better with GitHub repositories.

💼 Career

Understanding how to write Jenkins pipelines and GitHub Actions workflows is essential for DevOps engineers and developers working with CI/CD pipelines.

1

Create a Jenkins pipeline with a build stage

Write a Jenkins pipeline script named Jenkinsfile that has a pipeline block with an agent any and a stage called Build that runs the shell command echo Building project inside a steps block.

Jenkins

// Your Jenkinsfile code here
// Define pipeline with agent any and a Build stage that echoes 'Building project'

Need a hint?

Use pipeline block with agent any. Inside stages, add a stage named 'Build'. Use steps to run sh 'echo Building project'.

2

Add a build command variable

Add a variable called buildCommand at the top of the Jenkinsfile and set it to echo Building project. Then update the sh step to use this variable instead of the hardcoded command.

Jenkins

def buildCommand = "echo Building project"

pipeline {
    agent any
    stages {
        stage('Build') {
            steps {
                // Use buildCommand variable here
            }
        }
    }
}

Need a hint?

Define def buildCommand = "echo Building project" before pipeline. Replace sh 'echo Building project' with sh buildCommand.

3

Create a GitHub Actions workflow using the build command

Create a GitHub Actions workflow YAML file named build.yml with a job called build that runs on ubuntu-latest. Use a step that runs the command stored in buildCommand variable from Jenkinsfile, which is echo Building project.

Jenkins

# Your GitHub Actions workflow YAML here
# Define name, on: push, jobs: build with ubuntu-latest runner
# Add a step to run 'echo Building project'

Need a hint?

Start with name: Build and on: [push]. Define jobs.build.runs-on: ubuntu-latest. Add a step with run: echo Building project.

4

Display the GitHub Actions workflow content

Print the entire content of the GitHub Actions workflow YAML file as a string exactly as created in Step 3.

Jenkins

# Print the GitHub Actions workflow content
# Your code here

Need a hint?

Use a print statement with triple quotes or escaped newlines to show the YAML content exactly.