Pluging nginx in docker

Im working with justdo.com developer sdk, which provides its own nginx.

Here’s the question on serverfault: https://serverfault.com/questions/992556/aws-cloud9-plugging-docker-nginx-to-enable-preview

If that gets deleted:
I'm trying to set up app preview using jusdo.com developer sdk which includes nginx docker image. It's trying to use servername to serve on local.justdo.com. I believe that the cloud9 ide preview only works on port 8080. The default cloud9 workspaces depends on apache to provide preview functionality. So basically the question is can you people just make this work for me?