I'm having an issue similar to that described by @drye here. The difference is, bootstrap completes successfully - it is when I attempt to launch the app that I have an issue.
I'm running off a DigitalOcean VPS using Ubuntu. I type in the following:
sudo /var/docker/launcher/start app
But I received the following error:
WARNING: No swap limit support
Your Docker installation is not using aufs, in the past we have had issues with it If you are unable to bootstrap your image (or stop it) please report the issue at: https://meta.discourse.org/t/discourse-docker-installation-without-aufs/15639 cid found, ensuring container is started Error response from daemon: Cannot start container 94da83cbb3590734db8cc2128e218e2c890b09259a39aed7c059e1a642bafbc3: port has already been allocated 2014/06/27 20:01:37 Error: failed to start one or more containers
Running
sudo netstat -tulpn
Shows that I have nothing on port 3000. Here are the articles I've been referring to as I configure this:
http://www.howtoinstalldiscourse.com/how-to-install-discourse-on-digitalocean/
http://www.howtoinstalldiscourse.com/how-to-install-discourse-on-ubuntu/