Per https://news.ycombinator.com/item?id=10425097

> Tutum is not a real PaaS, it runs containers in the user infrastructure and can be easily adapted to run on-premise

Which doesn't sound like managed container hosting to me. Their site is gone though so I'm not really sure. There was 0 discussion around their shutdown, if they did have a managed solution I'm curious why it failed. Too early?

All references to it are redirects now, but here's a HN discussion on the topic[1]. Here's the content on the wayback machine[2]

1: https://news.ycombinator.com/item?id=16665130 2: https://web.archive.org/web/20180328234733/https://docs.dock...

Thanks for the link -- neither of those explain what Docker Cloud (nee Tutum) is but https://web.archive.org/web/20171003123425/https://docs.dock... has a bit more info.

> Docker Cloud provides ... tools to help you set up and manage host infrastructure

additionally

> When you use Docker Cloud to deploy nodes on a hosted provider, the service stores your cloud provider credentials and then deploys nodes for you using the services’ API to perform actions on your behalf.

That sounds like not managed to me if you're managing the underlying infra, the IaaS, IAM connections, needing to watch host to container ratios, etc. but I guess host maintenance was limited to pressing a button to upgrade (with downtime) hosts at least.