Update docs for CRIContainerLogRotation

Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>

content/en/docs/concepts/cluster-administration/logging.md

@@ -83,12 +83,15 @@ As an example, you can find detailed information about how `kube-up.sh` sets
 up logging for COS image on GCP in the corresponding
 [`configure-helper` script](https://github.com/kubernetes/kubernetes/blob/{{< param "githubbranch" >}}/cluster/gce/gci/configure-helper.sh).
 
+When using a **CRI container runtime**, the kubelet is responsible for rotating the logs and managing the logging directory structure. The kubelet
+sends this information to the CRI container runtime and the runtime writes the container logs to the given location. The two kubelet flags `container-log-max-size` and `container-log-max-files` can be used to configure the maximum size for each log file and the maximum number of files allowed for each container respectively.
+
 When you run [`kubectl logs`](/docs/reference/generated/kubectl/kubectl-commands#logs) as in
 the basic logging example, the kubelet on the node handles the request and
 reads directly from the log file. The kubelet returns the content of the log file.
 
 {{< note >}}
-If an external system has performed the rotation,
+If an external system has performed the rotation or a CRI container runtime is used,
 only the contents of the latest log file will be available through
 `kubectl logs`. For example, if there's a 10MB file, `logrotate` performs
 the rotation and there are two files: one file that is 10MB in size and a second file that is empty.

content/en/docs/concepts/policy/resource-quotas.md

@@ -124,6 +124,10 @@ In release 1.8, quota support for local ephemeral storage is added as an alpha f
 | `limits.ephemeral-storage` | Across all pods in the namespace, the sum of local ephemeral storage limits cannot exceed this value. |
 | `ephemeral-storage` | Same as `requests.ephemeral-storage`. |
 
+{{< note >}}
+When using a CRI container runtime, container logs will count against the ephemeral storage quota. This can result in the unexpected eviction of pods that have exhausted their storage quotas. Refer to [Logging Architecture](/docs/concepts/cluster-administration/logging/) for details.
+{{< /note >}}
+
 ## Object Count Quota
 
 You can set quota for the total number of certain resources of all standard,

content/en/docs/reference/command-line-tools-reference/feature-gates.md

@@ -62,8 +62,6 @@ different Kubernetes components.
 | `BoundServiceAccountTokenVolume` | `false` | Alpha | 1.13 | |
 | `CPUManager` | `false` | Alpha | 1.8 | 1.9 |
 | `CPUManager` | `true` | Beta | 1.10 | |
-| `CRIContainerLogRotation` | `false` | Alpha | 1.10 | 1.10 |
-| `CRIContainerLogRotation` | `true` | Beta| 1.11 | |
 | `CSIInlineVolume` | `false` | Alpha | 1.15 | 1.15 |
 | `CSIInlineVolume` | `true` | Beta | 1.16 | - |
 | `CSIMigration` | `false` | Alpha | 1.14 | 1.16 |
@@ -199,6 +197,9 @@ different Kubernetes components.
 | `BlockVolume` | `false` | Alpha | 1.9 | 1.12 |
 | `BlockVolume` | `true` | Beta | 1.13 | 1.17 |
 | `BlockVolume` | `true` | GA | 1.18 | - |
+| `CRIContainerLogRotation` | `false` | Alpha | 1.10 | 1.10 |
+| `CRIContainerLogRotation` | `true` | Beta | 1.11 | 1.20 |
+| `CRIContainerLogRotation` | `true` | GA | 1.21 | - |
 | `CSIBlockVolume` | `false` | Alpha | 1.11 | 1.13 |
 | `CSIBlockVolume` | `true` | Beta | 1.14 | 1.17 |
 | `CSIBlockVolume` | `true` | GA | 1.18 | - |
@@ -449,7 +450,9 @@ Each feature gate is designed for enabling/disabling a specific feature:
    for more details.
 - `CPUManager`: Enable container level CPU affinity support, see
   [CPU Management Policies](/docs/tasks/administer-cluster/cpu-management-policies/).
-- `CRIContainerLogRotation`: Enable container log rotation for cri container runtime.
+- `CRIContainerLogRotation`: Enable container log rotation for CRI container runtime. The default max size of a log file is 10MB and the
+  default max number of log files allowed for a container is 5. These values can be configured in the kubelet config.
+  See the [logging at node level](/docs/concepts/cluster-administration/logging/#logging-at-the-node-level) documentation for more details.
 - `CSIBlockVolume`: Enable external CSI volume drivers to support block storage.
   See the [`csi` raw block volume support](/docs/concepts/storage/volumes/#csi-raw-block-volume-support)
   documentation for more details.

content/en/docs/reference/command-line-tools-reference/kubelet.md

@@ -224,14 +224,14 @@ kubelet [flags]
 <td colspan="2">--container-log-max-files int32&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: 5</td>
 </tr>
 <tr>
-<td></td><td style="line-height: 130%; word-wrap: break-word;">&lt;Warning: Beta feature&gt; Set the maximum number of container log files that can be present for a container. The number must be &ge; 2. This flag can only be used with `--container-runtime=remote`. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)</td>
+<td></td><td style="line-height: 130%; word-wrap: break-word;">Set the maximum number of container log files that can be present for a container. The number must be &ge; 2. This flag can only be used with `--container-runtime=remote`. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)</td>
 </tr>
 
 <tr>
 <td colspan="2">--container-log-max-size string&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Default: `10Mi`</td>
 </tr>
 <tr>
-<td></td><td style="line-height: 130%; word-wrap: break-word;">&lt;Warning: Beta feature&gt; Set the maximum size (e.g. 10Mi) of container log file before it is rotated. This flag can only be used with `--container-runtime=remote`.  (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)</td>
+<td></td><td style="line-height: 130%; word-wrap: break-word;">Set the maximum size (e.g. 10Mi) of container log file before it is rotated. This flag can only be used with `--container-runtime=remote`.  (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)</td>
 </tr>
 
 <tr>
@@ -462,7 +462,6 @@ AppArmor=true|false (BETA - default=true)<br/>
 BalanceAttachedNodeVolumes=true|false (ALPHA - default=false)<br/>
 BoundServiceAccountTokenVolume=true|false (ALPHA - default=false)<br/>
 CPUManager=true|false (BETA - default=true)<br/>
-CRIContainerLogRotation=true|false (BETA - default=true)<br/>
 CSIInlineVolume=true|false (BETA - default=true)<br/>
 CSIMigration=true|false (BETA - default=true)<br/>
 CSIMigrationAWS=true|false (BETA - default=false)<br/>