Which service is used to compile source code, run unit tests, and produce deployable artifacts?

• A. AWS CodeCommit
• B. AWS CodeArtifact
• C. AWS CodeBuild
• D. AWS Cloud9

Answer: (C)

CodeBuild is designed to take your source, run the build process, execute unit tests, and generate deployable artifacts. It’s a fully managed build service that pulls code from repositories like CodeCommit or GitHub, runs the commands you specify in a buildspec.yml (including install, build, test, and post_build phases), and outputs artifacts to an S3 bucket or other artifact store. It can scale automatically and integrates with CodePipeline for end-to-end CI/CD.

Other services serve different roles: CodeCommit is a hosted source code repository, CodeArtifact is a package artifact store for dependencies, and Cloud9 is an integrated development environment for writing and debugging code. The one that handles compiling, testing, and producing artifacts is CodeBuild.