Porting an N-tier application on cloud using P-TOSCA: A case study

Although many companies and universities migrated their services, applications and data on the cloud, still significant part did not move yet, due to variety of reasons. Migration to other platform can cause the client many problems, and several directions have emerged to automate it as much as possible. P-TOSCA is a recently proposed Platform as a Service (PaaS) extension for TOSCA for automated application portability. In this paper, we demonstrate the migration of an application with most common N-tier architecture from on-premise to cloud, as well as from one cloud to another, by using P-TOSCA portability model, the development of application topology and execution plan. Although the presented demo was tested to migrate and transfer an N-tier application to Eucalyptus and OpenStack open source clouds, this model and procedure can be used for automated migration and transfer among any open standard that supports PaaS and P-TOSCA application specification.