add en pages

This commit is contained in:
Karen Bradshaw
2020-05-30 15:10:23 -04:00
parent 1502e0281d
commit ecc27bbbe7
347 changed files with 2900 additions and 2537 deletions
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reviewers:
- mikedanese
title: Labels and Selectors
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---
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_Labels_ are key/value pairs that are attached to objects, such as pods.
Labels are intended to be used to specify identifying attributes of objects that are meaningful and relevant to users, but do not directly imply semantics to the core system.
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Labels allow for efficient queries and watches and are ideal for use in UIs and CLIs. Non-identifying information should be recorded using [annotations](/docs/concepts/overview/working-with-objects/annotations/).
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## Motivation
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One use case for selecting over labels is to constrain the set of nodes onto which a pod can schedule.
See the documentation on [node selection](/docs/concepts/scheduling-eviction/assign-pod-node/) for more information.
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