While not Docker Cloud specifically, when we eyeballed UCP we found it very underwhelming when pitted against Kubernetes.
To us it appeared yet another in a sea of many orchestration tools that will give you a very quick and impressive "Hello World", but then fail to adapt to real world situations.
This is what Kubernetes really has going for it, every release adds more blocks and tools that are useful and composable targeting real world use (and allow many of us crazies to deal with the oddball and quirky behavior our fleet of applications may have), not just a single path of how applications would ideally work.
This generally has been a trend with Docker's tooling outside of Docker itself unfortunately.
Similarly docker-compose is great for our development boxes, but nowhere near useful for production.
And it doesn't help Docker's enterprise offerings still steer you towards using docker-compose and the likes.
Not to bash, but the page you linked is classic Docker - it says literally nothing about what "Docker Cloud" is.
"BUILD SHIP & RUN, ANY APP, ANYWHERE" is the slogan they repeat everywhere, including here, and it means even less everytime they do it. What IS Docker Cloud? Is it like Swarm? Does it use Swarm? What kinds of customers is Docker Cloud especially good at helping? All these mysteries and more, resolved never.
so am I (I'm YC alumni) .. but RDS is too important for us to move away from it.
Let me put it this way - if you had an RDS equivalent in Docker Cloud, lots of people would switch. Docker is more popular than you know.
Heroku should be an interesting learning example to the tons of new age cloud PAAS that I'm seeing. Heroku database hosting has always been key to adoption.. to an extent that lots of people continue to use it even after they move their servers to bare metal. The consideration and price sensitivity to data is very different than app servers.
I believe this is tutum that they bought some time ago. I tried tutum before with Azure. After deleting the Containers from tutum portal, it does not clean everything from Azure. Today the storage created by tutum is still in my Azure storage. LOL.
