How to Build a CI/CD Pipeline on AWS with CodePipeline + GitHub 🚀

"You mean I can push code to GitHub and AWS will auto-deploy it?!"

Yes. You can. And it’s easier than you think.

In this post, I’ll walk you through building a complete CI/CD pipeline on AWS using CodePipeline + GitHub — step by step, with simple language, real-life analogies, and practical code snippets.

Whether you’re deploying a static site, Node.js app, or Docker container, this guide will help you go from zero to auto-deploy hero in under 20 minutes.

Let’s roll! 🎯

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🧠 What is CI/CD (in Human Language)?

CI/CD = Continuous Integration + Continuous Deployment

• CI: Every time you push code, it's tested and packaged automatically

• CD: That packaged code gets deployed to your server — no more manual copy-pasting!

Think of it like setting up a robot that listens to GitHub and launches your app every time you update it.

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🛠️ Tools You’ll Use

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🧰 Prerequisites

• A GitHub repo with your app (even a basic HTML file will work)

• AWS account with permissions to use CodePipeline, CodeBuild, S3, EC2, etc.

• Basic knowledge of Git

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🚦 Step-by-Step: Create Your First AWS CI/CD Pipeline

Step 1: Connect GitHub to AWS

1. Go to AWS Console → CodePipeline

2. Click Create pipeline

3. Name your pipeline (e.g., my-awesome-pipeline)

4. In Source, choose:

   • Provider: GitHub (version 2)

   • Connect your GitHub account

   • Choose your repo + branch

Step 2: Add a Build Stage (Optional)

If you need to compile or test your code:

• Add a Build stage using AWS CodeBuild

• Provide a buildspec.yml file in your repo:

version: 0.2
phases:
  build:
    commands:
      - echo "Building..."
      - npm install
      - npm run build
artifacts:
  files:
    - '**/*'

If you're just deploying static files, you can skip this step.

Step 3: Add Deploy Stage

Choose where to deploy:

• S3 (for static websites)

• EC2 (via CodeDeploy)

• ECS / Lambda for containers or serverless

📦 Example: Deploy to S3

1. Create an S3 bucket

2. In the Deploy stage, choose "Amazon S3"

3. Provide the bucket name

4. AWS will upload your build artifacts automatically

🎉 Done! Push code to GitHub → Pipeline triggers → S3 gets updated

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🚀 Real-Life Example: Deploying a React App to S3

1. Add this buildspec.yml to your React repo:

version: 0.2
phases:
  install:
    commands:
      - npm install
  build:
    commands:
      - npm run build
artifacts:
  base-directory: build
  files:
    - '**/*'

2. Build stage runs npm run build and prepares files

3. Deploy stage pushes the /build folder to S3

Push to GitHub and watch the magic happen 🔮

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🧠 Why Use CodePipeline?

• ✅ Fully managed, no servers to maintain

• ✅ Pay-as-you-go pricing

• ✅ Deep integration with AWS services

• ✅ Easy rollback, logs, and versioning

And best of all — no more "it works on my machine" excuses 💻🔥

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⚠️ CI/CD Best Practices

• ✅ Use separate pipelines for staging & production

• ✅ Add tests in the build phase

• ✅ Use IAM roles — never hardcode AWS keys

• ✅ Enable notifications with SNS or Slack

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🔚 Final Thoughts + Bonus Tip

CI/CD isn’t just a buzzword — it’s how modern devs ship fast and ship safe. With GitHub + AWS CodePipeline, you can automate your deployments like a pro.

💡 Bonus: Use GitHub Webhooks + AWS Lambda for ultra-custom workflows.

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💬 Your Turn: What's Your CI/CD Setup?

Have you built a pipeline before? Want help customizing yours?

👇 Drop your repo or share your experience in the comments. Smash ❤️ if you found this helpful and share it with a dev buddy building their first app!

Together, let's automate the boring stuff — and focus on building awesome things. 🧡