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Merge pull request #1596 from CaoShuFeng/enhance-cni

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Add details about loopback cni plugin
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devin-donnelly
2016-11-21 16:54:43 -08:00
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parent 873cef7109 0e5ded3a91
commit 886ca4acdb
1 changed files with 2 additions and 2 deletions
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docs/admin/network-plugins.md
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@@ -36,11 +36,11 @@ Place plugins in `network-plugin-dir/plugin-name/plugin-name`, i.e if you have a
### CNI
The CNI plugin is selected by passing Kubelet the `--network-plugin=cni` command-line option. Kubelet reads a file from `--cni-conf-dir` (default `/etc/cni/net.d`) and uses the CNI configuration from that file to set up each pod's network. The CNI configuration file must match the [CNI specification](https://github.com/containernetworking/cni/blob/master/SPEC.md), and any required CNI plugins referenced by the configuration must be present in `--cni-bin-dir` (default `/opt/cni/bin`).
The CNI plugin is selected by passing Kubelet the `--network-plugin=cni` command-line option. Kubelet reads a file from `--cni-conf-dir` (default `/etc/cni/net.d`) and uses the CNI configuration from that file to set up each pod's network. The CNI configuration file must match the [CNI specification](https://github.com/containernetworking/cni/blob/master/SPEC.md#network-configuration), and any required CNI plugins referenced by the configuration must be present in `--cni-bin-dir` (default `/opt/cni/bin`).
If there are multiple CNI configuration files in the directory, the first one in lexicographic order of file name is used.
In addition to the CNI plugin specified by the configuration file, Kubernetes requires the standard CNI `lo` plugin, at minimum version 0.2.0
In addition to the CNI plugin specified by the configuration file, Kubernetes requires the standard CNI [`lo`](https://github.com/containernetworking/cni/blob/master/plugins/main/loopback/loopback.go) plugin, at minimum version 0.2.0
Limitation: Due to [#31307](https://github.com/kubernetes/kubernetes/issues/31307), `HostPort` won't work with CNI networking plugin at the moment. That means all `hostPort` attribute in pod would be simply ignored.