buildspecOverride

A buildspec file declaration that overrides the latest one defined in the build project, for this build only. The buildspec defined on the project is not changed.

If this value is set, it can be either an inline buildspec definition, the path to an alternate buildspec file relative to the value of the built-in CODEBUILD_SRC_DIR environment variable, or the path to an S3 bucket. The bucket must be in the same Amazon Web Services Region as the build project. Specify the buildspec file using its ARN (for example, arn:aws:s3:::my-codebuild-sample2/buildspec.yml). If this value is not provided or is set to an empty string, the source code must contain a buildspec file in its root directory. For more information, see Buildspec File Name and Storage Location.

Since this property allows you to change the build commands that will run in the container, you should note that an IAM principal with the ability to call this API and set this parameter can override the default settings. Moreover, we encourage that you use a trustworthy buildspec location like a file in your source repository or a Amazon S3 bucket.