Disclaimer - I co-founded a Cloud Foundry consultancy. There are numerous folks running open source Cloud Foundry in production. Most I can't name for confiden

Disclaimer - I co-founded a Cloud Foundry consultancy. There are numerous folks running open source Cloud Foundry in production. Most I can't name for confidentiality reasons, but the Comic Relief payments system runs on open source CF on a variety of infrastructures. Once you've got open source Cloud Foundry deployed and managed with Bosh, and you're using Concourse to update it, you should have a reasonably easy time. Numerous governments deploy open source Cloud Foundry this way (UK, USA, Australia, with several others evaluating it currently). You can run Docker containers on Cloud Foundry's Diego runtime. We normally encourage apps as a unit of deployment currency for a number of reasons (easier auditing, allowing developers to focus on code rather than setting up images), but Diego is battle-tested. Under the hood both apps and Docker containers are run the same way, so you don't need to worry about the Docker stuff being treated differently. I've not heard great things about OpenStack. I know people who have run very large Cloud Foundry installations on OpenStack, and had production issues with OpenStack network drives, amongst other things. From the anecdotal evidence of people I've spoken to, you're more likely to have problems with OpenStack than with Cloud Foundry. I'm happy to chat more - search for my username and you'll find us; I don't want to put gratuitous advertising in HN comments :D