Alternate package providers

[zmc]

We should evaluate alternatives to the Shaman/Chacra system. Pulp could be one option: https://pulpproject.org/

[supreetbhat]

I want to handle it.

[vamahaja]

I am working on changes required. Created repo to deploy Pulp Project and creating repositories to manage ceph packages same as chacra - https://github.com/vamahaja/pulp-project