Yes, Docker is still very young and has a ton of issues like these. I think it will take another 2-3 years before that whole ecosystem has emerged, matured, and is ready for a medium-stability deployment.

Unfortunately for us, such considerations don't stop tech fads. Because containers can allow many more applications to cohabit on the same "hardware", it has business momentum behind it too (lower infrastructure expenditures). "Docker" will be the buzzword until such time as it's actually practical and intelligent to deploy with it.