Microservices have recently emerged as a new architectural style in which distributed applications are broken up into small independently deployable services, each running in its own process and communicating via lightweight mechanisms. However, there is still a lack of repeatable empirical research on the design, development and evaluation of microservices applications. As a first step towards filling this gap, this paper proposes, discusses and illustrates the use of an initial set of requirements that may be useful in selecting a community-owned architecture benchmark to support repeatable microservices research.