Merge pull request #30895 from mengjiao-liu/sysctl-allow-slashes-zh

sync sysctl-cluster.md
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Kubernetes Prow Robot 2021-12-13 18:00:03 -08:00 committed by GitHub
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@ -21,6 +21,25 @@ interface.
本文档介绍如何通过 {{< glossary_tooltip term_id="sysctl" >}}
接口在 Kubernetes 集群中配置和使用内核参数。
<!--
Starting from Kubernetes version 1.23, the kubelet supports the use of either `/` or `.`
as separators for sysctl names.
For example, you can represent the same sysctl name as `kernel.shm_rmid_forced` using a
period as the separator, or as `kernel/shm_rmid_forced` using a slash as a separator.
For more sysctl parameter conversion method details, please refer to
the page [sysctl.d(5)](https://man7.org/linux/man-pages/man5/sysctl.d.5.html) from
the Linux man-pages project.
Setting Sysctls for a Pod and PodSecurityPolicy features do not yet support
setting sysctls with slashes.
-->
{{< note >}}
从 Kubernetes 1.23 版本开始kubelet 支持使用 `/``.` 作为 sysctl 参数的分隔符。
例如,你可以使用点或者斜线作为分隔符表示相同的 sysctl 参数,以点作为分隔符表示为: `kernel.shm_rmid_forced`
或者以斜线作为分隔符表示为:`kernel/shm_rmid_forced`。
更多 sysctl 参数转换方法详情请参考 Linux man-pages
[sysctl.d(5)](https://man7.org/linux/man-pages/man5/sysctl.d.5.html) 。
设置 Pod 的 Sysctl 参数 和 PodSecurityPolicy 功能尚不支持设置包含斜线的 Sysctl 参数。
{{< /note >}}
## {{% heading "prerequisites" %}}
@ -103,6 +122,7 @@ The following sysctls are supported in the _safe_ set:
- `net.ipv4.ip_local_port_range`
- `net.ipv4.tcp_syncookies`
- `net.ipv4.ping_group_range` (从 Kubernetes 1.18 开始)
- `net.ipv4.ip_unprivileged_port_start` (从 Kubernetes 1.22 开始).
<!--
The example `net.ipv4.tcp_syncookies` is not namespaced on Linux kernel version 4.4 or lower.