Emerging serverless computing technologies, such as function as a service (FaaS), enable developers to virtualize the internal logic of an application, simplifying the management of cloud-native services and allowing cost savings through billing and scaling at the level of individual functions. Serverless computing is therefore rapidly shifting the attention of software vendors to the challenge of developing cloud applications deployable on FaaS platforms. In this vision paper, we present the research agenda of the RADON project (http://radon-h2020.eu), which aims to develop a model-driven DevOps framework for creating and managing applications based on serverless computing. RADON applications will consist of fine-grained and independent microservices that can efficiently and optimally exploit FaaS and container technologies. Our methodology strives to tackle complexity in designing such applications, including the solution of optimal decomposition, the reuse of serverless functions as well as the abstraction and actuation of event processing chains, while avoiding cloud vendor lock-in through models.

新兴的无服务器计算技术，例如功能即服务 (FaaS)，使开发人员能够虚拟化应用程序的内部逻辑，简化云原生服务的管理，并通过单个功能级别的计费和扩展来节省成本。因此，无服务器计算正在迅速将软件供应商的注意力转移到开发可部署在 FaaS 平台上的云应用程序的挑战上。在这篇愿景论文中，我们介绍了 RADON 项目 (http://radon-h2020.eu) 的研究议程，该项目旨在开发一个模型驱动的 DevOps 框架，用于创建和管理基于无服务器计算的应用程序。 RADON 应用程序将由细粒度且独立的微服务组成，可以有效、最佳地利用 FaaS 和容器技术。我们的方法论致力于解决此类应用程序设计的复杂性，包括最优分解的解决方案、无服务器功能的重用以及事件处理链的抽象和驱动，同时通过模型避免云供应商锁定。