Have a CI/CD pipeline that does the following: - unit tests each service - all services fan-in to a job that builds a giant tar file of source/code artefacts.

Have a CI/CD pipeline that does the following: - unit tests each service - all services fan-in to a job that builds a giant tar file of source/code artefacts. This includes a metadata file that lists service versions or commit hashes - this "candidate release" is deployed to a staging environment for automated system/acceptance testing - it is then optionally deployed to prod once the acceptance tests have passed