Fission is a fast serverless framework for Kubernetes with a focus on developer productivity and high performance.

Fission operates on just the code: Docker and Kubernetes are abstracted away under normal operation, though you can use both to extend Fission if you want to.

Fission is extensible to any language; the core is written in Go, and language-specific parts are isolated in something called environments (more below). Fission currently supports NodeJS, Python, Ruby, Go, PHP, Bash, and any Linux executable, with more languages coming soon.

• Table of Contents
  • Performance: 100msec cold start
  • Kubernetes is the right place for Serverless
  • Getting Started
  • Learn More
  • Contributing
  • Who is using Fission?
  • Sponsors
• License

Fission maintains a pool of "warm" containers that each contain a small dynamic loader. When a function is first called, i.e. "cold-started", a running container is chosen and the function is loaded. This pool is what makes Fission fast: cold-start latencies are typically about 100msec.

We're built on Kubernetes because we think any non-trivial app will use a combination of serverless functions and more conventional microservices, and Kubernetes is a great framework to bring these together seamlessly.

Building on Kubernetes also means that anything you do for operations on your Kubernetes cluster — such as monitoring or log aggregation — also helps with ops on your Fission deployment.

  # Add the stock NodeJS env to your Fission deployment
  $ fission env create --name nodejs --image fission/node-env

  # Create a function with a javascript one-liner that prints "hello world"
  $ fission function create --name hello --env nodejs --code https://raw.githubusercontent.com/fission/examples/master/nodejs/hello.js

  # Run the function.  This takes about 100msec the first time.
  $ fission function test --name hello
  Hello, world!

• Understand Fission Concepts.
• See the installation guide for installing and running Fission.
• You can learn more about Fission and get started from Fission Docs.
• To see Fission in action, check out the Fission Examples Repo.
• See the troubleshooting guide for debugging your functions and Fission installation.

Check out the contributing guide.

• Fareye
• Apple
• iQuanti
• A large telecom CSP
• Gadget
• CinnamonAI
• Armo
• The Social Audience
• KubeML
• Unilever
• BD
• Biofourmis
• Babylon

The following companies, organizations, and individuals support Fission's ongoing maintenance and development. If you are using/contributing to Fission, we would be happy to list you here, please raise a Pull request.

Fission is licensed under the Apache License 2.0 - see the LICENSE file for details