I don't know if it is a "really bad" idea. I've run stacks on both AWS and GCP, and used both RDS and CloudSQL. They are good solutions and I definitely agree t

I don't know if it is a "really bad" idea. I've run stacks on both AWS and GCP, and used both RDS and CloudSQL. They are good solutions and I definitely agree that looking at them first is sensible. They will fit the bill for a lot of applications. However you can get a pretty high level of fault tolerance using kubernetes services mounted on persistent volumes. You don't get all the advantages of a containerized solution but you do get dependency management and fault tolerance.