[DyslexicAtheist]

docker security issues[0] should really be listed as #1. The overhead/complexity of getting it secure (using SELinux) outweigh its benefits in production.

[0] http://blog.valbonne-consulting.com/2015/04/14/as-a-goat-im-...

[mixmastamyk]

I don't think its a good choice if security is a main concern. I wouldn't put multi-tenant apps on it either.