I am using Google container engine and Deis Workflow to run my rails application. I do not have a dockerfile, I just use Heroku buildpack.I was successfully able to deploy my app but I am not able to configure my database. I understand that my database cannot reside in my application, it has to be another service which will persist data. I am thinking of using AWS RDB and I think I will want to configure something like what is pointed here on heroku.

I am new to Kubernetes and this workflow, I would really appriciate if someone can point me out how to proceed and achieve this.