2.1.1.1. Code, Image, and Artifact Repositories (CodeCommit, ECR, S3)
First Principle: Centralized, version-controlled repositories are fundamental for collaboration, traceability, and reproducibility in automated software delivery.
Effective CI/CD pipelines rely on centralized, secure repositories for managing code, container images, and build artifacts. These repositories ensure version control, accessibility, and integrity of all components throughout the development lifecycle.
- AWS CodeCommit: (A fully managed source control service that hosts secure Git-based repositories.) Ideal for storing application code, infrastructure as code (IaC), and configuration files.
- Amazon Elastic Container Registry (ECR): (A fully managed Docker container registry.) Makes it easy to store, manage, and deploy Docker container images. Integrates seamlessly with ECS, EKS, and Lambda.
- Amazon S3 (Simple Storage Service): (An object storage service.) Can be used to store various build artifacts, deployment packages, and static website content. Often used as a low-cost, highly durable storage for pipeline outputs.
Key AWS Repositories for CI/CD:
- AWS CodeCommit: Source code, IaC, Git-based.
- Amazon ECR: Docker container images.
- Amazon S3: Generic artifacts, deployment packages, static content.
Scenario: A DevOps team is building a CI/CD pipeline for a microservices application. They need to store the application's source code, its Docker container images, and generated deployment packages securely and with version control.
Reflection Question: How would you integrate AWS CodeCommit, Amazon ECR, and Amazon S3 into this pipeline to ensure centralized, version-controlled, and secure management of all code, image, and artifact assets?
These services provide the foundational storage layer for your CI/CD assets, ensuring they are readily available and securely managed.
š” Tip: Implement strict access controls (IAM policies) on all repositories to enforce least privilege and protect sensitive code and artifacts.