buildWorkerPool

Name of the Cloud Build Custom Worker Pool that should be used to build the function. The format of this field is projects/{project}/locations/{region}/workerPools/{workerPool} where {project} and {region} are the project id and region respectively where the worker pool is defined and {workerPool} is the short name of the worker pool. If the project id is not the same as the function, then the Cloud Functions Service Agent (service-@gcf-admin-robot.iam.gserviceaccount.com) must be granted the role Cloud Build Custom Workers Builder (roles/cloudbuild.customworkers.builder) in the project.