如何将openshift网站导向我购买的gandi.net域名？我试过了，但它不起作用？

Okay so I created a web app and am hosting it on openshift. Right now, they just gave me a CNAME something like myapp-someappname.rhcloud.com. So they told me to use that CNAME to redirect to my domain.Okay so I created a web app and am hosting it o