Function as a Service
lastmod 2026-11-10created 2018-08-313 edits
Function as a Service (FaaS) is a serverless computing model in which you upload code as individual functions without managing servers, and the cloud runs it each time an event occurs. AWS Lambda, Google Cloud Functions, and Azure Functions are typical examples; billing is by execution time and number of invocations, and it scales automatically with request volume. Technologies such as Firecracker, a lightweight virtual machine, are used for isolated execution environments.