Controller to Agent request and response protocol via Etcd

[hdkshingala]

We have to develop some kind of request and response protocol - each agent can watch a path under /rpc/agents/requets/{agent_id} and controller can write a {request_id} under that path. The entire path can be lease ttl on agent lifecycle

Agent can publish the result for request if under /rpc/agents/responses/{request_id} path

Someone did this in rust - https://lib.rs/crates/etcdmq

[sahil-lakhwani]

I've started on this - Got the basic requirement from Hardik, got on a call with Hasit to understand the code flow.

I'm also trying to understand how to plug etcd as a transport on the current rpc protocol as mentioned by Michal.

I also had a tour of the uber/fx library myself to better understand the code structure.

[tanveergill]

This is implemented