I got rancheros up and running, and I found that I can start a rancher instance on the rancheros by starting the rancher-server-stable service.
sudo ros service enable rancher-server-stable
sudo ros service up rancher-server-stable
After doing this I can access rancher on the ip of the machine on port 8080 using https, however I cannot figure out the correct / easy way to supply a different ssl certificate.