OpenFaaS
OpenFaaS (Functions as a Service) is an open-source serverless framework that enables developers to build, deploy, and manage event-driven functions and microservices using containers. It abstracts infrastructure complexities by allowing functions to be packaged as Docker containers and executed on-demand in response to events, such as HTTP requests or messages from queues. The platform supports multiple programming languages and integrates with Kubernetes or Docker Swarm for orchestration.
Developers should learn OpenFaaS when building scalable, event-driven applications that require rapid deployment of functions without managing underlying servers, such as for APIs, data processing pipelines, or IoT backends. It is particularly useful in cloud-native environments where cost-efficiency and auto-scaling are priorities, as it reduces operational overhead by leveraging containerization and serverless principles.