The API and the packaging standard is the main contract between users. Once everyone has agreed to the fact that they need to package their applications into co

The API and the packaging standard is the main contract between users. Once everyone has agreed to the fact that they need to package their applications into containers, the orchestration can be done in any way. Google's Cloud Run uses Kubernetes API + Container packaging but doesn't actually run on GKE, it's running on their regular old compute engine and users don't even come to know.