Open cloud server Chassis Manager is a management software for rack level devices like server, fan and PSU. It primarily consists of two modules -- Chassis Manager Service and WcsCli. Chassis Manager Service provides implementation to manage various sub-services like fan service, PSU service, power control service, etc. The WcsCli provides a framework to carry out system management operations. This framework is exposed in two forms -- RESTful APIs for automated management; and a command-line interface for manual management.The intent of this community project is to collaborate with Open Compute Project Foundation (OCP) to build a thriving ecosystem of OSS within OCP and contribute this project to OCP.