Cloud Computing has been successful in providing substantial amounts of resources to deploy scalable and highly available applications. However, there is a growing necessity of lower latency services and cheap bandwidth access to accommodate the expansion of IoT and other applications that reside at the internet’s edge. The development of community networks and volunteer computing, together with the today’s low cost of compute and storage devices, is making the internet’s edge filled with a large amount of still underutilized resources. Due to this, new computing paradigms like Edge Computing and Fog Computing are emerging. This work presents Caravela a Docker’s container orchestrator that utilizes volunteer edge resources from users to build an Edge Cloud where it is possible to deploy applications using standard Docker containers. Current cloud solutions are mostly tied to a centralized cluster environment deployment. Caravela employs a completely decentralized architecture, resource discovery and scheduling algorithms to cope with (1) the large amount of volunteer devices, volatile environment, (2) wide area networks that connects the devices and (3) nonexistent natural central administration.

云计算已成功提供大量资源来部署可扩展且高度可用的应用程序。然而，越来越需要低延迟服务和廉价带宽访问，以适应物联网和其他驻留在互联网边缘的应用程序的扩展。社区网络和志愿者计算的发展，以及当今计算和存储设备的低成本，正在使互联网的边缘充满大量尚未充分利用的资源。因此，诸如边缘计算和雾计算之类的新计算范式正在出现。这项工作向 Caravela 展示了一个 Docker 的容器编排器，它利用来自用户的志愿边缘资源来构建一个边缘云，可以在其中使用标准 Docker 容器部署应用程序。当前的云解决方案大多与集中式集群环境部署相关联。Caravela 采用完全分散的架构、资源发现和调度算法来应对 (1) 大量志愿者设备、不稳定的环境，(2) 连接设备的广域网和 (3) 不存在的自然中央管理。