Micro-PaaS Fog: container-based orchestration for IoT applications using SBC

The Internet of Things (IoT) is an emerging technology paradigm in which ubiquitous sensors monitor physical infrastructures, environments and people in real-time to help in decision making and improve the efficiency and reliability of the systems, adding comforte and life quality to society. In this sense, there are questions, as the limitation of computational resources, high latency and different QoS requirements related to IoT that move cloud technologies to the fog computing direction, and, the adoption of light virtualised solutions, as technologies based in containers to attend many needs of different domains. This work, therefore, aims to propose and implement a micro-PaaS architecture for fog computing, in a cluster of Single-Board Computer (SBC), for orchestration of applications using containers, applied to IoT and that attend to the QoS criteria, e.g., high availability, scalability, load balance and latency. From this proposed model, the micro-PaaS Fog was implemented with virtualisation technology in containers using orchestration services in a cluster build with Raspberry Pi to monitor water and energy consumption at a Total Cost of Property (TCO) equivalent to 23% of a Public platform as a Service (PaaS).