Merge pull request #26220 from ydFu/update-storage

[zh] Sync concepts pages for config and storage

Author: k8s-ci-robot

content/zh/docs/concepts/configuration/overview.md

@@ -183,6 +183,15 @@ A desired state of an object is described by a Deployment, and if changes to tha
 Deployment 描述了对象的期望状态，并且如果对该规范的更改被成功应用，
 则 Deployment 控制器以受控速率将实际状态改变为期望状态。
 
+<!--
+- Use the [Kubernetes common labels](/docs/concepts/overview/working-with-objects/common-labels/) for common use cases. These standardized labels enrich the metadata in a way that allows tools, including `kubectl` and [dashboard](/docs/tasks/access-application-cluster/web-ui-dashboard), to work in an interoperable way.
+-->
+
+- 对于常见场景，应使用 [Kubernetes 通用标签](/zh/docs/concepts/overview/working-with-objects/common-labels/)。
+  这些标准化的标签丰富了对象的元数据，使得包括 `kubectl` 和
+  [仪表板（Dashboard）](/zh/docs/tasks/access-application-cluster/web-ui-dashboard)
+  这些工具能够以可互操作的方式工作。
+
 <!--
 - You can manipulate labels for debugging. Because Kubernetes controllers (such as ReplicaSet) and Services match to Pods using selector labels, removing the relevant labels from a Pod will stop it from being considered by a controller or from being served traffic by a Service. If you remove the labels of an existing Pod, its controller will create a new Pod to take its place. This is a useful way to debug a previously "live" Pod in a "quarantine" environment. To interactively remove or add labels, use [`kubectl label`](/docs/reference/generated/kubectl/kubectl-commands#label).
 -->

content/zh/docs/concepts/scheduling-eviction/assign-pod-node.md

@@ -500,8 +500,8 @@ as at least one already-running pod that has a label with key "security" and val
 on node N if node N has a label with key `topology.kubernetes.io/zone` and some value V
 such that there is at least one node in the cluster with key `topology.kubernetes.io/zone` and
 value V that is running a pod that has a label with key "security" and value "S1".) The pod anti-affinity
-rule says that the pod prefers not to be scheduled onto a node if that node is already running a pod with label
-having key "security" and value "S2". (If the `topologyKey` were `topology.kubernetes.io/zone` then
+rule says that the pod should not be scheduled onto a node if that node is in the same zone as a pod with
+label having key "security" and value "S2". (If the `topologyKey` were `topology.kubernetes.io/zone` then
 it would mean that the pod cannot be scheduled onto a node if that node is in the same zone as a pod with
 label having key "security" and value "S2".) See the
 [design doc](https://git.k8s.io/community/contributors/design-proposals/scheduling/podaffinity.md)
@@ -517,8 +517,8 @@ Pod 亲和性规则表示，仅当节点和至少一个已运行且有键为“s
 则 Pod 有资格在节点 N 上运行，以便集群中至少有一个节点具有键
 `topology.kubernetes.io/zone` 和值为 V 的节点正在运行具有键“security”和值
 “S1”的标签的 pod。）
-Pod 反亲和性规则表示，如果节点已经运行了一个具有键“security”和值“S2”的标签的 Pod，
-则该 pod 不希望将其调度到该节点上。
+Pod 反亲和性规则表示，如果节点处于 Pod 所在的同一可用区且具有键“security”和值“S2”的标签，
+则该 pod 不应将其调度到该节点上。
 （如果 `topologyKey` 为 `topology.kubernetes.io/zone`，则意味着当节点和具有键
 “security”和值“S2”的标签的 Pod 处于相同的区域，Pod 不能被调度到该节点上。）
 查阅[设计文档](https://git.k8s.io/community/contributors/design-proposals/scheduling/podaffinity.md)

content/zh/docs/concepts/scheduling-eviction/pod-overhead.md

@@ -38,10 +38,12 @@ time according to the overhead associated with the Pod's
 
 <!--
 When Pod Overhead is enabled, the overhead is considered in addition to the sum of container
-resource requests when scheduling a Pod. Similarly, Kubelet will include the Pod overhead when sizing
+resource requests when scheduling a Pod. Similarly,the kubelet will include the Pod overhead when sizing
 the Pod cgroup, and when carrying out Pod eviction ranking.
 -->
-当启用 Pod 开销时，在调度 Pod 时，除了考虑容器资源请求的总和外，还要考虑 Pod 开销。类似地，Kubelet 将在确定 Pod cgroup 的大小和执行 Pod 驱逐排序时包含 Pod 开销。
+
+如果启用了 Pod Overhead，在调度 Pod 时，除了考虑容器资源请求的总和外，还要考虑 Pod 开销。
+类似地，kubelet 将在确定 Pod cgroups 的大小和执行 Pod 驱逐排序时也会考虑 Pod 开销。
 
 <!--
 ## Enabling Pod Overhead {#set-up}
@@ -301,6 +303,11 @@ from source in the meantime.
 
 ## {{% heading "whatsnext" %}}
 
+<!--
+* [RuntimeClass](/docs/concepts/containers/runtime-class/)
+* [PodOverhead Design](https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/688-pod-overhead)
+-->
+
 * [RuntimeClass](/zh/docs/concepts/containers/runtime-class/)
-* [PodOverhead 设计](https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/20190226-pod-overhead.md)
+* [PodOverhead 设计](https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/688-pod-overhead)
 

content/zh/docs/concepts/storage/volume-snapshot-classes.md

@@ -95,15 +95,15 @@ used for provisioning VolumeSnapshots. This field must be specified.
 <!--
 ### DeletionPolicy
 
-Volume snapshot classes have a deletionPolicy. It enables you to configure what happens to a VolumeSnapshotContent when the VolumeSnapshot object it is bound to is to be deleted. The deletionPolicy of a volume snapshot can either be `Retain` or `Delete`. This field must be specified.
+Volume snapshot classes have a deletionPolicy. It enables you to configure what happens to a VolumeSnapshotContent when the VolumeSnapshot object it is bound to is to be deleted. The deletionPolicy of a volume snapshot class can either be `Retain` or `Delete`. This field must be specified.
 
 If the deletionPolicy is `Delete`, then the underlying storage snapshot will be deleted along with the VolumeSnapshotContent object. If the deletionPolicy is `Retain`, then both the underlying snapshot and VolumeSnapshotContent remain.
 -->
 ### 删除策略 {#deletion-policy}
 
 卷快照类具有 `deletionPolicy` 属性。用户可以配置当所绑定的 VolumeSnapshot
 对象将被删除时，如何处理 VolumeSnapshotContent 对象。
-卷快照的这个策略可以是 `Retain` 或者 `Delete`。这个策略字段必须指定。
+卷快照类的这个策略可以是 `Retain` 或者 `Delete`。这个策略字段必须指定。
 
 如果删除策略是 `Delete`，那么底层的存储快照会和 VolumeSnapshotContent 对象
 一起删除。如果删除策略是 `Retain`，那么底层快照和 VolumeSnapshotContent

content/zh/docs/concepts/storage/volumes.md

@@ -509,6 +509,20 @@ memory limit.
 虽然 tmpfs 速度非常快，但是要注意它与磁盘不同。
 tmpfs 在节点重启时会被清除，并且你所写入的所有文件都会计入容器的内存消耗，受容器内存限制约束。
 
+<!--
+{{< note >}}
+If the `SizeMemoryBackedVolumes` [feature gate](/docs/reference/command-line-tools-reference/feature-gates/) is enabled,
+you can specify a size for memory backed volumes.  If no size is specified, memory
+backed volumes are sized to 50% of the memory on a Linux host.
+{{< /note>}}
+-->
+
+{{< note >}}
+当启用 `SizeMemoryBackedVolumes` [特性门控](/zh/docs/reference/command-line-tools-reference/feature-gates/)时，
+你可以为基于内存提供的卷指定大小。
+如果未指定大小，则基于内存的卷的大小为 Linux 主机上内存的 50％。
+{{< /note>}}
+
 <!--
 #### emptyDir configuration example
 -->