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Feature/add flannel wireguard encryption backend as option (#9583)

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* feat(): Add wireguard backend to flannel cni

As described in the flannel docs:
https://github.com/flannel-io/flannel/blob/master/Documentation/backends.md#wireguard

This does not support optional configuration methods like:
- setting a psk (will be autogenerated by default)
- chang listening ports
- change mode (defaults to 'separate')
- change PersistentKeepaliveInterval (defaults to 0)

* Add supported backends to flannel docs

* Fix markdown in docs
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janaurka
2022-12-19 00:39:43 +01:00
committed by GitHub
parent a132733b2d
commit 491e260d20
3 changed files with 12 additions and 2 deletions
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docs/flannel.md
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@@ -2,6 +2,8 @@
Flannel is a network fabric for containers, designed for Kubernetes
Supported [backends](https://github.com/flannel-io/flannel/blob/master/Documentation/backends.md#wireguard): `vxlan`, `host-gw` and `wireguard`
**Warning:** You may encounter this [bug](https://github.com/coreos/flannel/pull/1282) with `VXLAN` backend, while waiting on a newer Flannel version the current workaround (`ethtool --offload flannel.1 rx off tx off`) is showcase in kubespray [networking test](tests/testcases/040_check-network-adv.yml:31).
## Verifying flannel install