CI/CD for AWS Applications

Continuous Integration and Continuous Deployment (CI/CD) enable developers to automate build, test, and deployment workflows. AWS provides fully managed CI/CD services that integrate natively with application and infrastructure services.

Key Concepts

Why CI/CD?

• Faster and reliable deployments
• Reduced human error
• Repeatable, auditable release process
• Enables DevOps and agile delivery

AWS CI/CD Services

AWS CodeCommit

• Managed Git-based source control
• Integrates with IAM for authentication
• Alternative: GitHub / Bitbucket

AWS CodeBuild

• Fully managed build service
• Uses buildspec.yml
• Supports multiple runtimes (Java, Python, Node.js)

AWS CodePipeline

• Orchestrates CI/CD stages
• Integrates with CodeCommit, CodeBuild, Lambda, CloudFormation
• Event-driven pipeline execution

AWS CodeDeploy

• Automates deployments to EC2, Lambda, and ECS
• Supports blue/green and rolling deployments

Lab: Create CICD pipeline to deploy serverless S3 hosted webpage

Step-1: Create Pipeline => Build Custom Pipeline
Step-2: Source provider => GitHub (Via GitHub App)
Step-3: Connect to GitHub and choose connection => select repository ==> Select Branch (main)
Step-4: Skip Build Stage
Step-5: Skip Test Stage
Step-6: Deploy => S3 => Choose Bucket => Check: Extract file before deploy
Step-7: Create Pipeline

Validate

1. Deploy complete on Code Pipepile UI
2. Change and commit index.html on GitHub
3. Notice auto-trigger of CodePipeline
4. Revised webpage now avaialble