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Update label selectors caution about OR operator (#17477)

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2019-11-11 21:24:06 -05:00
committed by Kubernetes Prow Robot
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content/en/docs/concepts/overview/working-with-objects/labels.md
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@@ -92,6 +92,10 @@ them.
For some API types, such as ReplicaSets, the label selectors of two instances must not overlap within a namespace, or the controller can see that as conflicting instructions and fail to determine how many replicas should be present. For some API types, such as ReplicaSets, the label selectors of two instances must not overlap within a namespace, or the controller can see that as conflicting instructions and fail to determine how many replicas should be present.
{{< /note >}} {{< /note >}}
{{< caution >}}
For both equality-based and set-based conditions there is no logical _OR_ (`||`) operator. Ensure your filter statements are structured accordingly.
{{< /caution >}}
### _Equality-based_ requirement ### _Equality-based_ requirement
_Equality-_ or _inequality-based_ requirements allow filtering by label keys and values. Matching objects must satisfy all of the specified label constraints, though they may have additional labels as well. _Equality-_ or _inequality-based_ requirements allow filtering by label keys and values. Matching objects must satisfy all of the specified label constraints, though they may have additional labels as well.