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Merge pull request #26712 from cofyc/kep1845 

KEP-1845: Prioritizing nodes based on volume capacity
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Kubernetes Prow Robot 2021-03-22 15:13:35 -07:00 committed by GitHub
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3
content/en/docs/reference/command-line-tools-reference/feature-gates.md
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@ -352,6 +352,7 @@ different Kubernetes components.
| `TokenRequestProjection` | `false` | Alpha | 1.11 | 1.11 |
| `TokenRequestProjection` | `true` | Beta | 1.12 | 1.19 |
| `TokenRequestProjection` | `true` | GA | 1.20 | - |
| `VolumeCapacityPriority` | `false` | Alpha | 1.21 | |
| `VolumeSnapshotDataSource` | `false` | Alpha | 1.12 | 1.16 |
| `VolumeSnapshotDataSource` | `true` | Beta | 1.17 | 1.19 |
| `VolumeSnapshotDataSource` | `true` | GA | 1.20 | - |
@ -789,6 +790,8 @@ Each feature gate is designed for enabling/disabling a specific feature:
- `TopologyManager`: Enable a mechanism to coordinate fine-grained hardware resource
assignments for different components in Kubernetes. See
[Control Topology Management Policies on a node](/docs/tasks/administer-cluster/topology-manager/).
- 'VolumeCapacityPriority`: Enable support for prioritizing nodes in different
topologies based on available PV capacity.
- `VolumePVCDataSource`: Enable support for specifying an existing PVC as a DataSource.
- `VolumeScheduling`: Enable volume topology aware scheduling and make the
PersistentVolumeClaim (PVC) binding aware of scheduling decisions. It also

7
content/en/docs/reference/scheduling/config.md
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@ -145,7 +145,12 @@ extension points:
Extension points: `Score`.
- `VolumeBinding`: Checks if the node has or if it can bind the requested
{{< glossary_tooltip text="volumes" term_id="volume" >}}.
Extension points: `PreFilter`, `Filter`, `Reserve`, `PreBind`.
Extension points: `PreFilter`, `Filter`, `Reserve`, `PreBind`, `Score`.
{{< note >}}
`Score` extension point is enabled when `VolumeCapacityPriority` feature is
enabled. It prioritizes the smallest PVs that can fit the requested volume
size.
{{< /note >}}
- `VolumeRestrictions`: Checks that volumes mounted in the node satisfy
restrictions that are specific to the volume provider.
Extension points: `Filter`.