This book constitutes the refereed proceedings of the 6th IFIP WG 2.14 European Conference on Service-Oriented and Cloud Computing, ESOCC 2017, held in Oslo, Norway, in September 2017.  The 6 short and 10 full papers presented in this volume were carefully reviewed and selected from 37 submissions. The volume also contains one invited talk in full paper length. The contributions were organized in topical sections named: microservices and containers; security; cloud resources; services; internet of things and data streams; and industrial applications of service and cloud computing.