Open source is leading the innovation tide and playing an indispensible role in shaping the future of new IT. OpenStack, as an emerging open source software stack for creating and managing clouds, has gained significant interest from both academia and industry leaders. This paper illustrates OpenCloud project, which implemented an open source private cloud in a production environment based on OpenStack. Furthermore, it presents how Intel Node Manager and Intel Trusted Execution Technology can help improve the power efficiency and security of a cloud environment.