Fission

Fast and Simple Serverless Functions for Kubernetes

Stars
7.92K
Forks
772
Open issues
223
Closed issues
834
Last release
5 months ago
Last commit
5 months ago
Watchers
7.92K
Total releases
71
Total commits
1.69K
Open PRs
8
Closed PRs
1.33K
Repo URL
Project Website
https://fission.io/
Platform
License
apache-2.0
Category
Offers premium version?
NO
Proprietary?
NO
About


Fission: Serverless Functions for Kubernetes


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
  • 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
Performance: 100msec cold start

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.

Kubernetes is the right place for Serverless

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.

Getting Started
  # 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!
Learn More Contributing

Check out the contributing guide.

Who is using Fission? Sponsors

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.

License

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

Alternative Projects

Subscribe to Open Source Businees Newsletter

Twice a month we will interview people behind open source businesses. We will talk about how they are building a business on top of open source projects.

We'll never share your email with anyone else.