{ "description": "A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.", "properties": { "key": { "description": "key is the label key that the selector applies to.", "type": [ "string", "null" ] }, "operator": { "description": "operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.", "type": [ "string", "null" ] }, "values": { "description": "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.", "items": { "type": [ "string", "null" ] }, "type": [ "array", "null" ] } }, "required": [ "key", "operator" ], "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "$id": "https://kubernetes.io/api/labelselectorrequirement/meta/v1" }