I had an interesting conversation with some #Docker executives on Friday, in which they highlighted some changes to their terms of service / business model. TL;DR: enterprises are now expected to pay for a full Docker subscription for *any* access to any "Docker Platform" features, including Docker Hub, regardless of pull rate.

So, for example, if you're a company with > 250 employees or > $10M revenue, and you have a Linux box pulling one open source image a week from Docker Hub, you must buy a Docker subscription for that box. And any others.

Previously, their website verbiage was focused solely on usage of Docker Desktop by enterprises.

If you are an #OpenSource maintainer and you're publishing container images on Docker Hub, they are monetizing your images, and they're doing so via a flat monthly rate regardless of consumption level. (IMHO that rate is too high, but YMMV, I guess)

This is obviously their prerogative. Really my only request/suggestion to Open Source maintainers who publish container images would be to consider also publishing them on GitHub's container registry (aka GitHub Packages) or any other registry, rather than single-sourcing with Docker Hub.
@rossgrady So it sounds like Docker Hub is now a commercial distributor. That would mean they're obliged to provide sources for all the GPL software included in hosted container images (instead of being able to point to whoever uploaded the image). Also as a commercial operation they would have higher liability for copyright infringement.
But I'm sure they've thought of that and figured out compliance for the totally undocumented assemblages of random software that they redistribute... right?
@bwh it’s funny, I just spent wayy too much time going back and forth with another bundler/redistributor of open source in the Python world, trying to get contractual clarity around what was their product and what was just the upstream open source packages. I’d say based on that experience that this is still largely an unsolved problem, at least when it comes to former open source companies now trying to monetize :)