Openshift Origin节点缩放

Question

我们正在测试一个poc的openshift起源（最新）。我们已经研究过POD缩放，它对我们非常有用。 This谈到添加节点，可以用ansible / puppet完成，但是如何完全自动化这个。

    Using openshift how does one achieve - 
        1. Create new ec2 node when current nodes are at capacity. 
           ( eg a POD which is guaranteed certain resources cannot be created ) 
        2. Add this node to current cluster 
        3. Scale PODs to this node