---
api_metadata:
  apiVersion: ""
  import: "k8s.io/api/core/v1"
  kind: "NodeSelectorRequirement"
content_type: "api_reference"
description: "A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values."
title: "NodeSelectorRequirement"
weight: 5
auto_generated: true
---

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`import "k8s.io/api/core/v1"`


A node selector requirement is a selector that contains values, a key, and an operator that relates the key and values.

<hr>

- **key** (string), required

  The label key that the selector applies to.

- **operator** (string), required

  Represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. Gt, and Lt.
  
  

- **values** ([]string)

  An array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. If the operator is Gt or Lt, the values array must have a single element, which will be interpreted as an integer. This array is replaced during a strategic merge patch.