OpenFaaS ® - Serverless Functions Made Simple
OpenFaaS® makes it easy for developers to deploy event-driven functions and microservices to Kubernetes without repetitive, boiler-plate coding. Package your code or an existing binary in a Docker image to get a highly scalable endpoint with auto-scaling and metrics.
Highlights
- Ease of use through UI portal and one-click install
- Write services and functions in any language with Template Store or a Dockerfile
- Build and ship your code in the Docker/OCI image format
- Portable: runs on existing hardware or public/private cloud by leveraging Kubernetes
- CLI available with YAML format for templating and defining functions
- Auto-scales as demand increases including to zero
Want to dig deeper into OpenFaaS?
Overview of OpenFaaS (Serverless Functions Made Simple)
Conceptual architecture and stack, more detail available in the docs
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Individual Sponsorships / End-users / Insiders Track 🍻
The source code for OpenFaaS is free to use and open source under the terms of the MIT license.
OpenFaaS Ltd offers commercial support and enterprise add-ons for end-users and training and consulting services for Cloud and Kubernetes.
Users and contributors are encouraged to join their peers in supporting the project through GitHub Sponsors.
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Website Sponsorship 🌎
Companies and brands are welcome to sponsor openfaas.com, the Gold and Platinum tiers come with a homepage logo, see costs and tiers. Website sponsorships are payable by invoice.
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Press / Branding 📸
For information on branding, the press-kit, registered entities and sponsorship head over to the openfaas/media repo. You can also order custom SWAG or take part in the weekly Twitter contest #FaaSFriday
Looking for statistics? This project does not use a mono-repo, but is split across several components. Use Ken Fukuyama's dashboard to gather accurate counts on contributors, stars and forks across the GitHub organisation.
Note: any statistics you gather about the openfaas/faas repository will be invalid, the faas repo is not representative of the project's activity.
Governance
OpenFaaS ® is an independent open-source project created by Alex Ellis, which is being built and shaped by a growing community of contributors.
OpenFaaS is hosted by OpenFaaS Ltd (registration: 11076587), a company which also offers commercial services, homepage sponsorships, and support. OpenFaaS ® is a registered trademark in England and Wales.
Users
View a selection of end-user companies who have given permission to have their logo listed at openfaas.com.
If you're using OpenFaaS please let us know on this thread. In addition, you are welcome to request to have your logo listed on the homepage. Thank you for your support.
Code samples
You can generate new functions using the faas-cli
and built-in templates or use any binary for Windows or Linux in a Docker container.
Official templates exist for many popular languages and are easily extensible with Dockerfiles.
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Node.js (node12
) example:
"use strict"
module.exports = async (event, context) => {
return context
.status(200)
.headers({"Content-Type": "text/html"})
.succeed(`
<h1>
👋 Hello World 🌍
</h1>`);
}
handler.js
-
Python 3 example:
import requests
def handle(req):
r = requests.get(req, timeout = 1)
return "{} => {:d}".format(req, r.status_code)
handler.py
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Golang example (golang-http
)
package function
import (
"log"
"github.com/openfaas-incubator/go-function-sdk"
)
func Handle(req handler.Request) (handler.Response, error) {
var err error
return handler.Response{
Body: []byte("Try us out today!"),
Header: map[string][]string{
"X-Served-By": []string{"openfaas.com"},
},
}, err
}
Get started with OpenFaaS
Official blog and documentation
OpenFaaS users can subscribe to a weekly Community Newsletter called Insiders Updates, to keep up to date with new features, bug fixes, events, tutorials and security patches. Insiders Updates are written by the project founder and distributed via GitHub Sponsors.
Support & getting help
Online training
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New: Training course from the LinuxFoundation: Introduction to Serverless on Kubernetes
This training course "Introduction to Serverless on Kubernetes" written by the project founder and commissioned by the LinuxFoundation provides an overview of what you need to know to build functions and operate OpenFaaS on public cloud.
Training course: Introduction to Serverless on Kubernetes
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Self-paced workshop written by the community on GitHub
You may also like to try the self-paced workshop on GitHub written by the OpenFaaS community
Browse the workshop
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Corporate trainings
If you wish to arrange a training session for your team, or a consultation, feel free to contact OpenFaaS Ltd
Quickstart
Here is a screenshot of the API gateway portal - designed for ease of use with the inception function.
Deploy OpenFaaS to Kubernetes, OpenShift, or faasd deployment guides
Video presentations
Community events and blog posts
Have you written a blog about OpenFaaS? Do you have a speaking event? Send a Pull Request to the community page below.
If you'd like to join OpenFaaS community Slack channel to chat with contributors or get some help then check out this page on community.
Roadmap and contributing
OpenFaaS is written in Golang and is MIT licensed - contributions are welcomed whether that means providing feedback, testing existing and new feature or hacking on the source.
How do I become a contributor?
Please see the guide on community & contributing
Roadmap
The roadmap for OpenFaaS is represented in GitHub issues and a Trello board.
Roadmap: OpenFaaS Cloud
OpenFaaS Cloud is a platform built on top of the OpenFaaS framework which enables a multi-user experience driven by GitOps. It can be installed wherever you already have OpenFaaS and packages a dashboard along with CI/CD integration with GitHub so that you can push code to a private or public Git repo and get live HTTPS endpoints.
Dashboards
Example of a Grafana dashboards linked to OpenFaaS showing auto-scaling live in action: here
An alternative community dashboard is available here