Edge computing is a reality for the current IoT systems that need fast processing and quick response time to make real-time decisions and IoT systems without permanent connectivity to the cloud (e.g., car manufacturing, precision agriculture, or cattle raising). Additionally, these industries are facing the need for rapid and continuous innovation by accelerating the delivery of over-the-air (OTA) software updates in edge devices. DevOps promotes collaboration between development and operation teams and automation at all steps of software construction to achieve continuous delivery (CD) of business value. Although DevOps has demonstrated numerous successful cases in the Web domain, in the IoT domain and, more specifically, at the edge, there are few reported cases. This work presents a success case of CD of customized software as a service software as a service (SaaS) updates at the IoT Edge. This may enable new business models at the IoT Edge. This article presents an architectural model of a highly distributed (cloud and edge) IoT system and a CD process flow for customized SaaS applications in edge nodes. Both the architectural model and the CD process flow are instantiated in a case study for precision agriculture.

中文翻译：

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在高度分布式物联网系统中持续交付定制的 SaaS 边缘应用程序


对于需要快速处理和快速响应时间来做出实时决策的当前物联网系统以及无需永久连接到云的物联网系统（例如，汽车制造、精准农业或养牛）来说，边缘计算已成为现实。此外，这些行业还需要通过加速边缘设备中无线 (OTA) 软件更新的交付来实现快速、持续的创新。 DevOps 促进开发和运营团队之间的协作以及软件构建各个步骤的自动化，以实现业务价值的持续交付（CD）。尽管DevOps在Web领域、物联网领域，更具体地说，在边缘领域展示了众多成功案例，但鲜有案例报道。这项工作展示了 IoT Edge 上的定制软件即服务 (SaaS) 更新 CD 的成功案例。这可能会在物联网边缘实现新的业务模式。本文介绍了高度分布式（云和边缘）IoT 系统的架构模型以及边缘节点中定制 SaaS 应用程序的 CD 流程。架构模型和 CD 流程均在精准农业案例研究中进行了实例化。