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# Flannel Adopters

This document lists organizations known to use Flannel in production or development/testing environments.

To add your organization to this list, please open a pull request.

## Production Adopters

| Organization | Usage | More Information |
|---|---|---|
| SUSE / Rancher | Default CNI for [K3s](https://k3s.io) lightweight Kubernetes | https://k3s.io |
| SUSE / Rancher | Default CNI for [RKE2](https://docs.rke2.io) Kubernetes distribution | https://docs.rke2.io |

@thomasferrandiz thomasferrandiz Mar 30, 2026

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Here we should clarify that the default rke2 CNI is Canal, not Flannel.

@rbrtbnfgl rbrtbnfgl Mar 30, 2026

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Also for Canal the Tigera documentation is not updated.

| Tigera | Used as the networking layer in the [Canal](https://github.com/projectcalico/calico) CNI plugin (Flannel + Calico policy) | https://projectcalico.docs.tigera.io |

## Development / Testing Adopters

| Organization | Usage | More Information |
|---|---|---|
| CNCF | Used in various local Kubernetes development environments and CI pipelines | — |
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