# OpenFunction/OpenFunction

Cloud Native Function-as-a-Service Platform (CNCF Sandbox Project)

Repository: https://github.com/OpenFunction/OpenFunction
Canonical: https://ross.abutalabs.com/products/openfunction
Homepage: https://openfunction.dev
Language: Go
License: Apache-2.0
License Family: permissive
Topics: kubernetes, serverless, cloud-native, k8s, faas, knative
Last push: 2024-06-19T07:51:05+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2085, "days_push": 805, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1658, forks 165 (observed 2026-08-28T04:05:18.211893+00:00)

## What it is
OpenFunction is a cloud-native, open-source Function-as-a-Service (FaaS) platform built on Kubernetes that lets developers deploy business logic as functions without managing underlying infrastructure. It supports both synchronous and asynchronous functions, builds OCI-compliant container images directly from source code, and provides scale-from-zero autoscaling and an event management framework.

## Use cases
- run serverless functions on my own kubernetes cluster
- deploy functions from source code without writing dockerfiles
- build event-driven functions that consume from message queues
- scale functions from zero to N based on load
- self-hosted alternative to AWS Lambda
- process async events with functions on kubernetes
- integrate backend services with dapr bindings

## When to choose
- you already run Kubernetes and want a self-hosted FaaS platform
- you need both sync (HTTP) and async (event-driven) functions in one platform
- you want scale-to-zero and event-metric-based autoscaling
- you want functions built into OCI images directly from source
- you prefer cloud-agnostic, pluggable runtimes over vendor lock-in

## When to avoid
- you have no Kubernetes cluster and don't want to operate one
- you want a fully managed serverless offering with zero ops
- you need a lightweight function runtime without Kubernetes dependencies
- your team is small and Knative/Dapr's operational complexity outweighs the benefits

## Facets
- artifact type: framework
- maturity: active
- function: serverless, deployment, workflow-automation, microservices, container-orchestration
- domain: cloud-computing, backend, apis, self-hosted
- platform: go, cloud, self-hosted
- tags: faas, serverless, knative, dapr, cncf-sandbox, event-driven, autoscaling, crds, devops, kubernetes, docker

## Member repositories
- OpenFunction/OpenFunction (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:18.211893+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:44:43.971405+00:00, confidence not recorded.
  - readme: https://github.com/OpenFunction/OpenFunction (fetched 2026-08-28T04:05:18.211893+00:00, sha cace88ac58ef)
  - homepage: https://openfunction.dev (fetched 2026-08-29T11:17:31.269911+00:00, sha dbb2158465e5)
  - site_page: https://openfunction.dev/docs (fetched 2026-08-29T11:17:31.279046+00:00, sha 16ba0f495390)
  - site_page: https://v1-1.openfunction.dev/docs (fetched 2026-08-29T11:17:31.280943+00:00, sha 2bcdf19d7bf7)
  - site_page: https://v1-0.openfunction.dev/docs (fetched 2026-08-29T11:17:31.282640+00:00, sha 874e8daebfb7)
  - site_page: https://v0-8.openfunction.dev/docs (fetched 2026-08-29T11:17:31.284182+00:00, sha 4cd233da7350)
  - site_page: https://v0-7.openfunction.dev/docs (fetched 2026-08-29T11:17:31.285965+00:00, sha 5d755a0419bf)
  - site_page: https://v0-6.openfunction.dev/docs (fetched 2026-08-29T11:17:31.287924+00:00, sha 62bdfcf633a4)
- Data as of 2026-08-30T08:39:29.467469+00:00.