Article in Proceedings INPROC-2014-21

BibliographyBreitenbücher, Uwe; Binz, Tobias; Képes, Kálmán; Kopp, Oliver; Leymann, Frank; Wettinger, Johannes: Combining Declarative and Imperative Cloud Application Provisioning based on TOSCA.
In: Proceedings of the IEEE International Conference on Cloud Engineering (IC2E).
University of Stuttgart, Faculty of Computer Science, Electrical Engineering, and Information Technology.
pp. 87-96, english.
IEEE Computer Society, March 2014.
DOI: 10.1109/IC2E.2014.56.
Article in Proceedings (Conference Paper).
CR-SchemaK.6 (Management of Computing and Information Systems)

The automation of application provisioning is one of the most important issues in Cloud Computing. The Topology and Orchestration Specification for Cloud Applications (TOSCA) supports automating provisioning by two different flavors: (i) declarative processing is based on interpreting application topology models by a runtime that infers provisioning logic whereas (ii) imperative processing employs provisioning plans that explicitly describe the provisioning tasks to be executed. Both flavors come with benefits and drawbacks. This paper presents a means to combine both flavors to resolve drawbacks and to profit from benefits of both worlds: we propose a standards-based approach to generate provisioning plans based on TOSCA topology models. These provisioning plans are workflows that can be executed fully automatically and may be customized by application developers after generation. We prove the technical feasibility of the approach by an end-to-end open source toolchain and evaluate its extensibility, performance, and complexity.

Department(s)University of Stuttgart, Institute of Architecture of Application Systems
Entry dateMarch 27, 2014
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