This is basically all we do (Disclaimer: This is mainly meant for bigger companies, not startups): https://skymind.ai/platform - reach out if you have any questions. Mail in profile.

One thing I'll say is "just k8s" isn't realistic. You need a lot more than that.

It should run within k8s but should also be minimalistic. Not a lot of platforms provide that. A lot of our docs on the internals are still being built out yet, but we provide everything ranging from an offline install of anaconda to managed connectivity gateway to hadoop and spark clusters.

We also have built in model serving and experiment tracking (which in reality is just a relational database with a rest api automatically integrated in to the platform) - if you're interested in learning more please reach out.