"Message queues, streaming services, specialized DBs, etc" have no intrinsic properties making them "cloud-provider capabilities". All of these "cloud-provider

"Message queues, streaming services, specialized DBs, etc" have no intrinsic properties making them "cloud-provider capabilities". All of these "cloud-provider capabilities" are just normal software that you can run on your own hardware. In one or two cases, the software was first exposed via a particular provider's platform, but similar, and very likely superior software that accomplishes the same goals, is now available for self-hosting (Dynamo -> Cassandra or Riak, for example). That's about as strong as the connection gets. It doesn't follow that "microservices and cloud-native apps hang together" because the cloud provider charges you a lot of money to access their Redis server, when you could run your own Redis server.