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Breaking Down a Buildspec.yml File

Explore how the buildspec.yml file controls the build process in AWS CodeBuild. Understand its syntax, key sections like install, build, and postbuild phases, environment setup, and artifact handling. Gain the skills to configure this YAML file to automate compiling and packaging your code in a CI/CD pipeline.

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Overview

A CodeBuild project needs a set of instructions on how to package/compile the source code after it has been downloaded from the code repository into our chosen build environment.

According to AWS, a buildspec.yml file is a collection of build commands and related settings in YAML format that CodeBuild uses to run a build.

The buildspec.yml file is usually placed at the base of the project directory. The file contains the following:

  • The build commands needed to build the application
  • The definition of different environment variables as needed
  • The required tools for the build to succeed
  • The artifact(s) to archive
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