node: devicemgr: docs: Additional updates based on review comments
Signed-off-by: Swati Sehgal <swsehgal@redhat.com>pull/37273/head
Swati Sehgal
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@ -167,7 +167,7 @@ Pod onto Nodes, to restart the daemon Pod after failure, and to help automate up
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Previously, the versioning scheme required the Device Plugin's API version to match
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exactly the Kubelet's version. Since the graduation of this feature to Beta in v1.12
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this is no longer a hard requirement. The API is versioned and has been stable since
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Beta graduation of this feature. Because of this, Kubelet upgrades should be seamless
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Beta graduation of this feature. Because of this, kubelet upgrades should be seamless
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but there still may be changes in the API before stabilization making upgrades not
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guaranteed to be non-breaking.
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@ -92,8 +92,6 @@ For a reference to old feature gates that are removed, please refer to
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| `CustomResourceValidationExpressions` | `true` | Beta | 1.25 | |
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| `DelegateFSGroupToCSIDriver` | `false` | Alpha | 1.22 | 1.22 |
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| `DelegateFSGroupToCSIDriver` | `true` | Beta | 1.23 | |
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| `DevicePlugins` | `false` | Alpha | 1.8 | 1.9 |
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| `DevicePlugins` | `true` | Beta | 1.10 | |
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| `DisableCloudProviders` | `false` | Alpha | 1.22 | |
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| `DisableKubeletCloudCredentialProviders` | `false` | Alpha | 1.23 | |
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| `DownwardAPIHugePages` | `false` | Alpha | 1.20 | 1.20 |
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@ -254,6 +252,9 @@ For a reference to old feature gates that are removed, please refer to
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| `DisableAcceleratorUsageMetrics` | `false` | Alpha | 1.19 | 1.19 |
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| `DisableAcceleratorUsageMetrics` | `true` | Beta | 1.20 | 1.24 |
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| `DisableAcceleratorUsageMetrics` | `true` | GA | 1.25 |- |
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| `DevicePlugins` | `false` | Alpha | 1.8 | 1.9 |
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| `DevicePlugins` | `true` | Beta | 1.10 | 1.25 |
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| `DevicePlugins` | `true` | GA | 1.26 | - |
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| `DryRun` | `false` | Alpha | 1.12 | 1.12 |
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| `DryRun` | `true` | Beta | 1.13 | 1.18 |
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| `DryRun` | `true` | GA | 1.19 | - |
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@ -4,14 +4,20 @@ title: Kubelet Device Manager API Versions
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weight: 10
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---
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Please note that the device plugin API is present here: https://github.com/kubernetes/kubelet/tree/master/pkg/apis/deviceplugin.
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This page provides details of version compatibility between the Kubernetes
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[device plugin API](https://github.com/kubernetes/kubelet/tree/master/pkg/apis/deviceplugin),
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and different versions of Kubernetes itself.
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#### Compatibility matrix
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## Compatibility matrix
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| | Kubernetes 1.21 | Kubernetes 1.22 | Kubernetes 1.23 | Kubernetes 1.24 | Kubernetes 1.25 | Kubernetes 1.26 |
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|---------------|------------------|-----------------|-----------------|-----------------|-----------------|-----------------|
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| `v1alpha1` | - | - | - | - | - | - |
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| `v1beta1` | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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| | `v1alpha1` | `v1beta1` |
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|-----------------|-------------|-------------|
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| Kubernetes 1.21 | - | ✓ |
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| Kubernetes 1.22 | - | ✓ |
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| Kubernetes 1.23 | - | ✓ |
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| Kubernetes 1.24 | - | ✓ |
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| Kubernetes 1.25 | - | ✓ |
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| Kubernetes 1.26 | - | ✓ |
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Key:
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@ -20,9 +26,8 @@ Key:
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* `+` device plugin API has features or API objects that may not be present in the
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Kubernetes cluster, either due to that device plugin API has additional new API, or
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that the server has removed old API. However, everything they have in
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common (i.e., most APIs) will work. Please note that alpha APIs may vanish or
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change significantly in a single release.
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common (most other APIs) will work. Note that alpha APIs may vanish or
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change significantly between one minor release and the next.
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* `-` The Kubernetes cluster has features the device plugin API can't use,
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either due to the server has additional new API, or that device plugin API has
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removed old API. However, everything they share in common (i.e., most APIs)
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will work.
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removed old API. However, everything they share in common (most APIs) will work.
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@ -91,3 +91,12 @@ kubectl convert -f pod.yaml --output-version v1
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The `kubectl` tool replaces the contents of `pod.yaml` with a manifest that sets `kind` to
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Pod (unchanged), but with a revised `apiVersion`.
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### Device Plugins
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If your cluster is running device plugins and the node needs to been upgraded to a Kubernetes
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release with a newer device plugin API version, device plugins must be upgraded to support
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both version before node is upgraded for continuous functioning of the device allocations
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during the upgrade.
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Refer to [API compatiblity](docs/concepts/extend-kubernetes/compute-storage-net/device-plugins.md/#api-compatibility) and [Kubelet Device Manager API Versions](docs/reference/node/device-plugin-api-versions.md) for more details.
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@ -11,7 +11,8 @@ description: Configure and schedule GPUs for use as a resource by nodes in a clu
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{{< feature-state state="stable" for_k8s_version="v1.26" >}}
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Kubernetes includes **stable** support for managing AMD and NVIDIA GPUs
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(graphical processing units) across several nodes.
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(graphical processing units) across different nodes in your cluster, using
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{{< glossary_tooltip text="device plugins" term_id="device-plugin" >}}.
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This page describes how users can consume GPUs, and outlines
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some of the limitations in the implementation.
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@ -20,8 +21,7 @@ some of the limitations in the implementation.
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## Using device plugins
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Kubernetes implements {{< glossary_tooltip text="device plugins" term_id="device-plugin" >}}
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to let Pods access specialized hardware features such as GPUs.
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Kubernetes implements device plugins to let Pods access specialized hardware features such as GPUs.
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{{% thirdparty-content %}}
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