fix(deis-minio): store minio data on a persistent volume

[arschles]

This PR only enables persistence on the host's disk.

Volumes Reference: http://kubernetes.io/v1.1/docs/user-guide/volumes.html#persistentvolumeclaim
Persistence reference: https://github.com/kubernetes/kubernetes/blob/release-1.1/docs/user-guide/persistent-volumes.md

Related: deis/charts#72
Ref: deis/deis#4809

[kmala]

@arschles did you see the comment against the host path in http://kubernetes.io/docs/user-guide/persistent-volumes/#types-of-persistent-volumes saying it will not work for multi node cluster which makes sense because what if the pod is restarts on another node

[arschles]

@kmala yep, saw that. IIRC this was a proof of concept, with the idea being that it could be extended to a single-replica minio server backed by a persistent disk (such as GCEPersistentDisk).

Anyway, since this was a proof of concept and it's not really rational to run it in production (as you said), objections to closing?

[bacongobbler]

none. close away!

[arschles]

Ok, closing