Docker supports DNS based service discovery now. You should use the Docker implementation instead of this project. Skydock was built at a time when Docker did not support DNS discovery or auto registration. I'll keep the repo up for past years and as reference for others but don't use it if you have a recent version of Docker.Skydock monitors docker events when containers start, stop, die, kill, etc and inserts records into a dynamic DNS server skydns. This allows standard DNS queries for services running inside docker containers. Because lets face it, if you have to modify your application code to work with other service discovery solutions you might as well just give up. DNS just works and it works well. Also you cannot be expected to modify application code that you don't own. Passing service urls via the cli or in static config files (nginx) will not be possible if your service discovery solution requires a client library just to fetch an IP.