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Add documentation about default storage class

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Jan Safranek
2017-03-21 09:25:01 +01:00
parent 18fb24df44
commit 0eef44d130
4 changed files with 96 additions and 1 deletions
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docs/user-guide/persistent-volumes/index.md
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@@ -329,7 +329,7 @@ is turned on.
* If the admission plugin is turned on, the administrator may specify a
default `StorageClass`. All PVCs that have no `storageClassName` can be bound only to
PVs of that default. Specifying a default `StorageClass` is done by setting the
annotation `storageclass.beta.kubernetes.io/is-default-class` equal to "true" in
annotation `storageclass.kubernetes.io/is-default-class` equal to "true" in
a `StorageClass` object. If the administrator does not specify a default, the
cluster responds to PVC creation as if the admission plugin were turned off. If
more than one default is specified, the admission plugin forbids the creation of
@@ -339,6 +339,9 @@ all PVCs.
have no class. In this case, the PVCs that have no `storageClassName` are treated the
same way as PVCs that have their `storageClassName` set to `""`.
Depending on installation method, a default StorageClass may be deployed
to Kubernetes cluster by addon manager during installation.
When a PVC specifies a `selector` in addition to requesting a `StorageClass`,
the requirements are ANDed together: only a PV of the requested class and with
the requested labels may be bound to the PVC. Note that currently, a PVC with a