Component-wise Application Migration in Bidimensional Cross-cloud Environments

Abstract

Abstract:We propose an algorithm for the migration of cloud applications' components between different providers, possibly changing their service level between IaaS and PaaS. Our solution relies on three of the key ingredients of the trans-cloud approach: a unified API, agnostic topology descriptions, and mechanisms for the independent specification of providers. We show how our approach allows us to overcome some of the current interoperability and portability issues of cloud environments to propose a solution for migration, present an implementation of our proposed solution, and illustrate it with a case study and experimental results.

Multi-cloud provisioning of business processes

“…OpenTOSCA 14 supplies an infrastructure of tools to run TOSCA blueprints. ARIA TOSCA 15 is a Cloud orchestration tool implementing TOSCA.…”

“…Especially, as the heterogeneity of IaaS and PaaS offerings is still evolving and consequently, the probability that different kinds of cloud services will be utilised to realise a cloud application based on its (evolving) requirements is increased. Hereby, application deployments might move from IaaS to PaaS or vice versa due to changing business requirements or cloud provider offerings [15]. For instance, if the management overhead needs to be reduced, an application deployed on IaaS can be moved to PaaS to avoid the VM-level management.…”

“…The cross-level orchestration approach in [14] extended Apache Brooklyn with the capability to additionally orchestrate applications over PaaS services. While [14] only focuses on the deployment aspect of cross-level orchestration, an extended version of this tool focuses also on the adaptation aspect [15]. In this context, [15] introduces an algorithm for migrating applications between IaaS and PaaS providers.…”

“…While [14] only focuses on the deployment aspect of cross-level orchestration, an extended version of this tool focuses also on the adaptation aspect [15]. In this context, [15] introduces an algorithm for migrating applications between IaaS and PaaS providers. Yet, cross-level monitoring and extra level-specific adaptation actions in different abstraction levels are not supported.…”

Cloud broker proposal based on multicriteria decision‐making and virtual infrastructure migration

“…The specialized literature comprehends proposals from different categories, as listed in Section 2.2. Initially, considering the migration of applications between cloud providers, an algorithm to orchestrate the live migration was proposed by Carrasco et al Although the proposal is agnostic to source and target cloud providers, the algorithm does not take into account the migration of network components. A description of P‐TOSCA, a model proposed to move applications and data, is applied to migrate virtual resources .…”