Fn Project

What it does

Container support

Fn uses native Docker containers and accepts any Docker container as a function.checked 9 Oct 2026

Deployment options

Fn can run on public, private, and hybrid cloud, as well as on-premise.checked 9 Oct 2026

Integrations

Fn can run with Docker, Podman, or Rancher Desktop; its docs also list a Kubernetes Helm chart.checked 9 Oct 2026

Lambda compatibility

The project says Lambda functions can be imported and run anywhere.checked 9 Oct 2026

Language support

The project says it supports all programming languages; its docs include examples for Go, Java, Node.js, Python, Ruby, and C#.checked 9 Oct 2026

License

The Fn documentation repository identifies its license as Apache-2.0.checked 9 Oct 2026

Local development

Fn supports local deployment that skips pushing a function image to a remote container registry.checked 9 Oct 2026

Requirements

The installation tutorial lists Linux, macOS, or Windows and requires Docker 17.10 or later, Podman 5.7.0 or later, or Rancher Desktop 1.22.0 or later.checked 9 Oct 2026

Security support

The Fn server supports SELinux on Linux systems where it is enabled.checked 9 Oct 2026

Support

The project directs users to Stack Overflow and its Slack community for help.checked 9 Oct 2026

What it does

Fn is an open-source, event-driven Functions-as-a-Service compute platform.checked 9 Oct 2026

Workflow feature

Fn Flow supports function sequencing, fan-out and fan-in, retries, and error handling.checked 9 Oct 2026

Workflow inspection

Fn Flow lets users inspect workflow state and drill into stages to see logs and stack traces.checked 9 Oct 2026