Improving Portability of Cloud Service Topology Models Relying on Script-Based Deployment

Portability is key for services running in the Cloud to prevent vendor lock-in. Today, many Cloud services are portable and can thus be moved from one Cloud provider to another. However, the management of these services is often bound to provider-specific management tooling. Thus, the way of management of a particular Cloud service may completely change when moving it to another Cloud provider. This paper presents concepts to improve the portability of Cloud service topology models that are deployed and managed using scripts. We highlight the challenges of a semi-automatic procedure to generate portable TOSCA-compliant topology model components based on Juju topology model components.