Devops

Day 51: Your CI/CD Pipeline on AWS - Part 2 🚀☁

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Dhruv Moradiya
·

3 min read

Table of contents

Welcome to Part 2 of building your CI/CD pipeline on AWS! Yesterday, you set up AWS CodeCommit as your version control system. Today, we’ll dive into AWS CodeBuild, a powerful tool to compile your code, run tests, and prepare deployment artifacts. Let’s continue the journey step by step.

What is AWS CodeBuild?

AWS CodeBuild is a fully managed build service that eliminates the need to maintain your own build servers. It helps you:

  • Compile source code and run unit tests.

  • Produce build artifacts ready for deployment.

  • Automatically scale based on your build requirements.

  • Easily integrate with AWS services like CodePipeline and CodeDeploy for CI/CD.

Tasks for Today

Task 01: Learn About Buildspec File and Set Up CodeBuild

Requirements:

  • A valid AWS IAM role with permissions for CodeBuild.

  • A basic understanding of Nginx.

Steps:

  1. Read About the buildspec.yml File:

    • The buildspec.yml file is the heart of AWS CodeBuild. It defines:

      • Phases like install, build, and post-build.

      • Commands to execute during the build process.

      • The location of your output artifacts.

    • Example structure:

        version: 0.2
  phases:
    install:
      commands:
        - echo "Installing dependencies"
    build:
      commands:
        - echo "Building project"
  artifacts:
    files:
      - '**/*'

  2. Create an index.html File in CodeCommit:

    • In your local cloned repository, add an index.html file:

        <!DOCTYPE html>
  <html>
  <head>
    <title>AWS CodeBuild Example</title>
  </head>
  <body>
    <h1>Hello from AWS CodeBuild!</h1>
  </body>
  </html>

    • Commit and push the file to CodeCommit:

        git add index.html
  git commit -m "Added index.html"
  git push origin main

  3. Set Up an Nginx Server:

    • You’ll configure CodeBuild to serve index.html using Nginx during the build process.

Task 02: Add buildspec.yml and Complete the Build

Steps:

  1. Create the buildspec.yml File:

    • In your local repository, add a buildspec.yml:

        version: 0.2
  phases:
    install:
      commands:
        - echo "Installing Nginx"
        - yum install -y nginx
    build:
      commands:
        - echo "Copying index.html to Nginx root"
        - cp index.html /usr/share/nginx/html/index.html
  artifacts:
    files:
      - '**/*'

    • Commit and push it to CodeCommit:

        git add buildspec.yml
  git commit -m "Added buildspec.yml for Nginx setup"
  git push origin main

  2. Create a Build Project in AWS CodeBuild:

    • Go to CodeBuild in the AWS Console.

    • Click Create Build Project and provide details:

      • Source: Select your CodeCommit repository.

      • Buildspec: Choose "Use a buildspec file" and specify the file path (default: buildspec.yml).

      • Environment: Use a managed image (e.g., Amazon Linux).

    • Start the build process.

  3. Verify the Build:

    • Check the build logs for successful execution of the buildspec.yml.

    • Artifacts should be generated as specified in the file.

Key Takeaways

  • CodeBuild automates your build process, eliminating manual effort.

  • The buildspec.yml file is essential for defining your build phases and commands.

  • Today, you integrated Nginx into your build process, preparing for seamless deployment in the next steps.

Stay tuned for Part 3, where we’ll move on to AWS CodeDeploy!

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