社区云的关键技术、架构及挑战--以科技云为例

摘要

社区云是云计算四种部署模式中应用较少的一种，但对于面向科研和学术界的云服务却有其特点和优势，非常值得探索。本文结合中国科学院科技云的实践，讨论了身份管理与授权、服务集成、测量与运行管理三项关键技术，提出了一种适合社区云的联盟和微服务架构，并指出社区云在模式和机制、可靠性、安全、组织管理等方面所面临的挑战。%Community cloud is one of the four deployment models of cloud computing, which is not adopted popularly so far. Regarding the cloud services for research and academic community, community cloud has nevertheless some promising characteristics and advantages. With practices on the Science and Technology Cloud at the Chinese Academy of Sciences, this paper discusses three key technologies, proposes a kind of architecture using federation and microservices, and presents some challenges on mechanism, reliability, security and management which community cloud is facing.