September 10, 2020 Conference paper Open Access

Faticanti, Francescomaria; Savi, Marco; De Pellegrini, Francesco; Kochovski, Petar; Stankovski, Vlado; Siracusa, Domenico

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    <dct:title>Deployment of Application Microservices in Multi-Domain Federated Fog Environments</dct:title>
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    <dcat:keyword>Fog Computing</dcat:keyword>
    <dcat:keyword>Microservices</dcat:keyword>
    <dcat:keyword>Federation</dcat:keyword>
    <dcat:keyword>Resources Allocation</dcat:keyword>
    <dcat:keyword>Virtual Network Embedding</dcat:keyword>
    <dcat:keyword>Locality Constraints</dcat:keyword>
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    <dct:description>&lt;p&gt;In this paper we consider the problem of initial resource selection for a single-domain fog provider lacking sufficient resources&lt;br&gt; for the complete deployment of a batch of IoT applications. To overcome resources shortage, it is possible to lease assets from other domains across a federation of cloud-fog infrastructures to meet the requirements of those applications: the fog provider seeks to minimise the number of external resources to be rented in order to successfully deploy the applications&amp;rsquo; demands exceeding own infrastructure capacity. To this aim, we introduce a general framework for the deployment of applications across multiple domains of cloud-fog providers while guaranteeing resources locality constraints. The resource allocation problem is presented in the form of an integer linear program, and we provide a heuristic method that explores the resource assignment space in a breadth-first fashion.&lt;br&gt; Extensive numerical results demonstrate the efficiency of the proposed approach in terms of deployment cost and feasibility with respect to standard approaches adopted in the literature.&lt;/p&gt;</dct:description>
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