Configure CodeBuild to use CloudFormation-created dynamic ReportGroup

Programming
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1

How can I configure CodeBuild to use a ReportGroup created by CloudFormation?

AWS have recently (20/12/19) released support for shared CodeBuild Report Groups in CloudFormation.

I’d like to use a ReportGroup in my CloudFormation, but I can’t find a way to configure CodeBuild to use it.

It looks like reporting configuration is done in the buildspec, with an example of a hardcoded reference to a report group in this example buildspec snippet:

reports:
  arn:aws:codebuild:your-region:your-aws-account-id:report-group/report-group-name-1: #surefire junit reports
    files:
      - '**/*'
    base-directory: 'surefire/target/surefire-reports'
    discard-paths: false

If I’m creating my ReportGroup via CloudFormation, I don’t know the ARN to put into the buildspec.

So, my question is how can I inject a dynamically created ReportGroup ARN into the buildspec? Or is there a different/better way of configuring CodeBuild to use a ReportGroup created by CloudFormation?

2

You can use CloudFormation intrinsic functions to retrieve the ARN of the ReportGroup created by CloudFormation and pass it to the buildspec. Here’s an example of how to do it:

reports:
  !Sub 'arn:aws:codebuild:${AWS::Region}:${AWS::AccountId}:report-group/${ReportGroupName}':
    files:
      - '**/*'
    base-directory: 'surefire/target/surefire-reports'
    discard-paths: false

In this example, we’re using the !Sub function to substitute the ${ReportGroupName} variable with the name of the ReportGroup created by CloudFormation. The resulting ARN is then passed to the arn field in the buildspec.

Make sure to replace ${ReportGroupName} with the actual name of your ReportGroup in the CloudFormation template.