A Design of Serverless Computing Service for Edge Clouds

The method of Serverless Computing at the Edge is drawing attention because of the efficiency of using resources. This paper presents a design of Serverless Computing for Edge Clouds, based on an open-source project. One of the methods of Serverless at the Edge is that centralized architecture with a Serverless Platform in the control plane cluster. However, in a centralized architecture, if the resources or the status of a particular Edge is not good, the control plane cluster must detect anomalies and redeploy the Functions considering the environment of other Edges. It will take time to select and deploy to the appropriate Edge. The proposed architecture introduces cross-monitoring which imports monitoring metrics directly from a nearby Edge. Grouping Edge sites as a Zone and cross-monitoring each other in the Zone. So that, Serverless computing-based Functions can operate quickly when adjacent Edges are in poor condition. As a result, the neighboring Edges of the Zone can back up with each other.