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update-docs-for-calico-in-centos (#10417)

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Kay Yan 2023-09-08 20:18:14 +08:00 committed by GitHub
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docs/centos.md
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@ -7,10 +7,6 @@ Kubespray supports multiple ansible versions but only the default (5.x) gets wid
## CentOS 8
CentOS 8 / Oracle Linux 8,9 / AlmaLinux 8,9 / Rocky Linux 8,9 ship only with iptables-nft (ie without iptables-legacy similar to RHEL8)
The only tested configuration for now is using Calico CNI
You need to add `calico_iptables_backend: "NFT"` to your configuration.
If you have containers that are using iptables in the host network namespace (`hostNetwork=true`),
you need to ensure they are using iptables-nft.
An example how k8s do the autodetection can be found [in this PR](https://github.com/kubernetes/kubernetes/pull/82966)

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docs/rhel.md
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@ -29,10 +29,6 @@ If the RHEL 7/8 hosts are already registered to a valid Red Hat support subscrip
## RHEL 8
RHEL 8 ships only with iptables-nft (ie without iptables-legacy)
The only tested configuration for now is using Calico CNI
You need to use K8S 1.17+ and to add `calico_iptables_backend: "NFT"` to your configuration
If you have containers that are using iptables in the host network namespace (`hostNetwork=true`),
you need to ensure they are using iptables-nft.
An example how k8s do the autodetection can be found [in this PR](https://github.com/kubernetes/kubernetes/pull/82966)