Deploy ember application in Bluemix

I am trying to deploy an existing ember-nodejs application into bluemix environment. I tried the following steps.

bluemix api http://ift.tt/QKImQk

bluemix login -u username -o org_name -s space_name

cf push app_name

I also tried the above command with an ember build pack from the list of compatible CF build packs

cf push app_name -b http://ift.tt/1f3K6iP

Uploading is successful, but the application doesnt start up. Is there a recommended way of deploying ember-node js application?