Kay Yan
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docs/centos.md
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docs/rhel.md
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@ -7,10 +7,6 @@ Kubespray supports multiple ansible versions but only the default (5.x) gets wid |
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## CentOS 8 |
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## CentOS 8 |
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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) |
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The only tested configuration for now is using Calico CNI |
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You need to add `calico_iptables_backend: "NFT"` to your configuration. |
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If you have containers that are using iptables in the host network namespace (`hostNetwork=true`), |
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If you have containers that are using iptables in the host network namespace (`hostNetwork=true`), |
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you need to ensure they are using iptables-nft. |
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you need to ensure they are using iptables-nft. |
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An example how k8s do the autodetection can be found [in this PR](https://github.com/kubernetes/kubernetes/pull/82966) |
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An example how k8s do the autodetection can be found [in this PR](https://github.com/kubernetes/kubernetes/pull/82966) |
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@ -29,10 +29,6 @@ If the RHEL 7/8 hosts are already registered to a valid Red Hat support subscrip |
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## RHEL 8 |
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## RHEL 8 |
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RHEL 8 ships only with iptables-nft (ie without iptables-legacy) |
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The only tested configuration for now is using Calico CNI |
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You need to use K8S 1.17+ and to add `calico_iptables_backend: "NFT"` to your configuration |
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If you have containers that are using iptables in the host network namespace (`hostNetwork=true`), |
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If you have containers that are using iptables in the host network namespace (`hostNetwork=true`), |
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you need to ensure they are using iptables-nft. |
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you need to ensure they are using iptables-nft. |
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An example how k8s do the autodetection can be found [in this PR](https://github.com/kubernetes/kubernetes/pull/82966) |
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An example how k8s do the autodetection can be found [in this PR](https://github.com/kubernetes/kubernetes/pull/82966) |
