That is not the case. Your code will end up in container setup, or in library like Kubernetes and say Salt packages It may be good, or it may have features tha

That is not the case. Your code will end up in container setup, or in library like Kubernetes and say Salt packages It may be good, or it may have features that are unsuitable, however you have to remember that adapting it can be harder than writing redundancy handling from scratch on a good VM. Especially if you have special requirements for data consistency that a heavy database can others handle. A particular trap is getting this heavy service infrastructure and then trying to scale 100x, which not even Docker (the lightest) can pull off without a lot of hardware, and nanokernels also have problems. And then you get additional infrastructure problems which require even more infrastructure and staff. Which you cannot handle then outsource, which then gets done partly unsuitable or expensive, and you no longer own your stuff.