This PS updates the pod affinity function to allow customisation by
operators at the point of deployment.
Change-Id: I8b7b2f584e990e068051d9a6d5cc7b1e1adb5aa5
This PS move s the replicas key to be under the pod key in the values.
It brings further consolation of related configuration params to be
nested under common keys across all charts.
Change-Id: I420b06debd0a62ba5d83497be43ff6c49c49d339