Cloud apps to‐go: Cloud portability with TOSCA and MiCADO : WestminsterResearch

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Title	Cloud apps to‐go: Cloud portability with TOSCA and MiCADO
Type	Journal article
Authors	Deslauriers, J.
	Kiss, Tamas
	Ariyattu, Resmi C.
	Dang, Hai‐Van
	Ullah, Amjad
	Bowden, James
	Krefting, Dagmar
	Pierantoni, Gabriele
	Terstyanszky, Gabor
Abstract	As cloud adoption increases, so do the number of available cloud service providers. Moving complex applications between clouds can be beneficial - or other times necessary - but achieving this so-called cloud portability is rarely straightforward. This paper presents the adoption of OASIS TOSCA, a standard in the declarative description of cloud applications, to encourage and facilitate cloud portability in MiCADO, an application-level multi-cloud orchestration and auto-scaling framework. The interface to MiCADO is an Application Description Template, which draws from the TOSCA specification to describe an application in MiCADO. The generic design of these templates is presented and their applicability for achieving portability between different container and cloud environments is analysed and evaluated. A proof-of-concept where MiCADO serves as the deployment and execution engine for a Science Gateway in Sleep Healthcare is then described. In this proof-of concept, MiCADO facilitates the deployment of a complex healthcare application, which is then moved from one cloud service provider to another with only minimal changes to the template which originally described it. This TOSCA-based approach to templates in MiCADO encourages movement between clouds by making cloud portability more approachable.
Keywords	Theoretical Computer Science
	Computer Networks and Communications
	Computational Theory and Mathematics
	Software
	Computer Science Applications
Journal	Concurrency and Computation: Practice and Experience
ISSN	1532-0626
	1532-0634
Year	2020
Publisher	Wiley
Accepted author manuscript	Cloud_Apps_To_Go v2.1 (REV).pdf File Access Level Open (open metadata and files)
Publisher's version	cpe.6093.pdf File Access Level Open (open metadata and files)
Digital Object Identifier (DOI)	https://doi.org/10.1002/cpe.6093
Web address (URL)	https://onlinelibrary.wiley.com/doi/10.1002/cpe.6093
Published online	29 Nov 2020
License	http://creativecommons.org/licenses/by-nc-nd/4.0/

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Cloud apps to‐go: Cloud portability with TOSCA and MiCADO

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