LabelSelectorRequirement [page]deterministic
A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
`apiVersion: meta/v1`
`import "k8s.io/apimachinery/pkg/apis/meta/v1"`
## LabelSelectorRequirement {#LabelSelectorRequirement}
A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.
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<table> <thead><tr><th>Field</th><th>Description</th></tr></thead> <tbody> <tr> <td><code>key</code> <strong>*</strong><br/><em>string</em></td> <td>key is the label key that the selector applies to.</td> </tr> <tr> <td><code>operator</code> <strong>*</strong><br/><em>string</em></td> <td>operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.</td> </tr> <tr> <td><code>values</code><br/><em>string array</em></td> <td>values is 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. This array is replaced during a strategic merge patch.</td> </tr> </tbody> </table>