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Add documentation for downward API hugepages

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Derek Carr
2020-11-05 13:52:55 -05:00
parent c0eaf6940a
commit 6b4ab17902
2 changed files with 9 additions and 5 deletions
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content/en/docs/tasks/inject-data-application/downward-api-volume-expose-pod-information.md
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@@ -202,16 +202,18 @@ variables and `downwardAPI` volumes:
* Information available via `fieldRef`:
* `metadata.name` - the pod's name
* `metadata.namespace` - the pod's namespace
* `metadata.uid` - the pod's UID, available since v1.8.0-alpha.2
* `metadata.labels['<KEY>']` - the value of the pod's label `<KEY>` (for example, `metadata.labels['mylabel']`); available in Kubernetes 1.9+
* `metadata.annotations['<KEY>']` - the value of the pod's annotation `<KEY>` (for example, `metadata.annotations['myannotation']`); available in Kubernetes 1.9+
* `metadata.uid` - the pod's UID
* `metadata.labels['<KEY>']` - the value of the pod's label `<KEY>` (for example, `metadata.labels['mylabel']`)
* `metadata.annotations['<KEY>']` - the value of the pod's annotation `<KEY>` (for example, `metadata.annotations['myannotation']`)
* Information available via `resourceFieldRef`:
* A Container's CPU limit
* A Container's CPU request
* A Container's memory limit
* A Container's memory request
* A Container's ephemeral-storage limit, available since v1.8.0-beta.0
* A Container's ephemeral-storage request, available since v1.8.0-beta.0
* A Container's hugepages limit (providing that the `DownwardAPIHugePages` [feature gate](/docs/reference/command-line-tools-reference/feature-gates/) is enabled)
* A Container's hugepages request (providing that the `DownwardAPIHugePages` [feature gate](/docs/reference/command-line-tools-reference/feature-gates/) is enabled)
* A Container's ephemeral-storage limit
* A Container's ephemeral-storage request
In addition, the following information is available through
`downwardAPI` volume `fieldRef`: