CI/CD pipeline basics in Node.js - Mini Project: Build & Apply

CI/CD Pipeline Basics

📖 Scenario: You are working on a simple Node.js project. You want to automate testing and deployment using a CI/CD pipeline. This will help your team deliver updates faster and with fewer errors.

🎯 Goal: Build a basic CI/CD pipeline configuration file that runs tests and deploys the app automatically when code is pushed.

📋 What You'll Learn

Create a Node.js project with a test script

Add a configuration variable for the Node.js version

Write a CI/CD pipeline step to run tests

Write a CI/CD pipeline step to deploy the app

Print the pipeline steps to verify the setup

💡 Why This Matters

🌍 Real World

CI/CD pipelines automate testing and deployment so developers can deliver software updates quickly and reliably.

💼 Career

Understanding CI/CD basics is essential for DevOps roles and software development teams to improve workflow efficiency.

1

Create a Node.js project with a test script

Create a package.json file with a scripts section that includes a test script set to echo \"Running tests...\".

Node.js

const packageJson = {
  "name": "simple-node-app",
  "version": "1.0.0",
  "scripts": {
    // Add the test script here
  }
};

Need a hint?

The scripts section is a dictionary. Add a key test with the value echo \"Running tests...\".

2

Add a configuration variable for the Node.js version

Create a variable called nodeVersion and set it to the string "16.x".

Node.js

const packageJson = {
  "name": "simple-node-app",
  "version": "1.0.0",
  "scripts": {
    "test": "echo \"Running tests...\""
  }
};

// Your code here

Need a hint?

Use const nodeVersion = "16.x" to set the Node.js version.

3

Write a CI/CD pipeline step to run tests

Create an array called pipelineSteps and add an object with name set to "Run Tests" and command set to "npm test".

Node.js

const packageJson = {
  "name": "simple-node-app",
  "version": "1.0.0",
  "scripts": {
    "test": "echo \"Running tests...\""
  }
};

const nodeVersion = "16.x";

// Your code here

Need a hint?

Define pipelineSteps as an array with one object containing name and command keys.

4

Write a CI/CD pipeline step to deploy the app and print the pipeline

Add another object to pipelineSteps with name set to "Deploy" and command set to "echo Deploying app...". Then write console.log(pipelineSteps) to display the pipeline steps.

Node.js

const packageJson = {
  "name": "simple-node-app",
  "version": "1.0.0",
  "scripts": {
    "test": "echo \"Running tests...\""
  }
};

const nodeVersion = "16.x";

const pipelineSteps = [
  { name: "Run Tests", command: "npm test" }
];

// Your code here

Need a hint?

Remember to add the deploy step as a second object in the pipelineSteps array. Use console.log(pipelineSteps) to print the array.