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pod-overhead: add documentation (#15970)

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Create a concepts page, link to it from scheduler concept page,
update feature gates reference and describe briefly in the
runtime-class page.

Signed-off-by: Eric Ernst <eric.ernst@intel.com>
This commit is contained in:
Eric Ernst
2019-09-08 18:01:18 -07:00
committed by Kubernetes Prow Robot
parent 7559533774
commit b6aa6b07fa
4 changed files with 81 additions and 0 deletions
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content/en/docs/reference/command-line-tools-reference/feature-gates.md
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@@ -128,6 +128,7 @@ different Kubernetes components.
| `PersistentLocalVolumes` | `false` | Alpha | 1.7 | 1.9 |
| `PersistentLocalVolumes` | `true` | Beta | 1.10 | 1.13 |
| `PersistentLocalVolumes` | `true` | GA | 1.14 | |
| `PodOverhead` | `false` | Alpha | 1.16 | - |
| `PodPriority` | `false` | Alpha | 1.8 | 1.10 |
| `PodPriority` | `true` | Beta | 1.11 | 1.13 |
| `PodPriority` | `true` | GA | 1.14 | |
@@ -315,6 +316,7 @@ Each feature gate is designed for enabling/disabling a specific feature:
- `NonPreemptingPriority`: Enable NonPreempting option for PriorityClass and Pod.
- `PersistentLocalVolumes`: Enable the usage of `local` volume type in Pods.
Pod affinity has to be specified if requesting a `local` volume.
- `PodOverhead`: Enable the [PodOverhead](/docs/concepts/configuration/pod-overhead/) feature to account for pod overheads.
- `PodPriority`: Enable the descheduling and preemption of Pods based on their [priorities](/docs/concepts/configuration/pod-priority-preemption/).
- `PodReadinessGates`: Enable the setting of `PodReadinessGate` field for extending
Pod readiness evaluation.