Connecting NAT to eth0 Docker (Expose to external IP)

http://stackoverflow.com/questions/24319662/from-inside-of-a-docker-container-how-do-i-connect-to-the-localhost-of-the-mach

From inside of a Docker container, how do I connect to the localhost of the machine? So I have a Nginx running inside a docker container, I have a mysql running on localhost, I want to connect to the MySql from within my Nginx. The MySql is running on localhost and not exposing a p...