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CI/CD: CodePipeline, CodeBuild, CodeDeploy
DeploymentAWS-native continuous integration and delivery toolchain.
CodePipeline
- ▸Orchestrates stages (Source → Build → Test → Deploy) with parallel/sequential actions.
- ▸Artifacts flow between stages via an S3 artifact bucket.
- ▸Can trigger on source changes (CodeCommit/GitHub/S3) via EventBridge or webhooks.
CodeBuild
- ▸buildspec.yml defines phases: install, pre_build, build, post_build, and artifacts.
- ▸Runs in managed, ephemeral build containers; supports custom Docker images.
CodeDeploy
- ▸appspec.yml defines files to copy and lifecycle hooks (BeforeInstall, AfterInstall, ApplicationStart, ValidateService, etc.).
- ▸In-place deployment: updates existing instances directly.
- ▸Blue/green deployment: new environment provisioned, traffic shifted, old environment kept for rollback.
- ▸Also deploys to Lambda (canary/linear traffic shifting via alias) and ECS (blue/green via target groups).
CloudFormation & SAM
- ▸Change sets preview updates before execution — catches unwanted resource replacement.
- ▸Nested stacks modularize reusable templates.
- ▸SAM adds shorthand serverless resources (Function, Api, SimpleTable); sam build + sam deploy package and transform to CloudFormation.