What are the minimum requirements for a etcd deployment supporting only few containers?

[flixman]

We are working on the development of a PoT for an application that is composed of few containers (<10), and we are evaluating using etcd to store its configuration. What would be the minimum memory requirements to enable etcd contain configuration for 10 components, each one with ~10 key-value pairs? Are we talking few MB, 100s of MB?