this is an implementation of a P2P Network peer:
1- can send document or image to other peers
2- talk with server
2.1- ask for list of all user-ids
2.2- ask for address of a peer
2.3- register with server
server:
provides the facility to familiarize peers with each other.
redis:
holds key-value pairs with format <user-id, address>
address:
= IPv4 + ":" + port
docker image link: https://hub.docker.com/repository/docker/blackberryninja/bbn-p2p-network/general
