{
  "$id": "https://opendatafabric.org/schemas/resources/v1alpha1/meta/ResourceLabel",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "Metaschema for label schemas. Labels are indexed key-value pairs attached to resources that can be used for querying and filtering. Labels whose `labelProperties.isAuthAttribute` is true are additionally materialized into the auth engine by the resource controller.",
  "allOf": [
    {
      "$ref": "https://json-schema.org/draft/2020-12/schema"
    },
    {
      "type": "object",
      "properties": {
        "labelProperties": {
          "type": "object",
          "additionalProperties": false,
          "description": "ODF-specific metadata for this label schema.",
          "properties": {
            "isAuthAttribute": {
              "type": "boolean",
              "description": "When true, this label is materialized into the auth engine by the resource controller. Labels with this flag must appear under `labels`, not `annotations`, and will be validated as such."
            },
            "isRequired": {
              "type": "boolean",
              "description": "When true, this label must be present on all resources listed in `resourceTypes`."
            },
            "resourceTypes": {
              "type": "array",
              "description": "List of resource type URIs this label is valid for. When absent the label is allowed on any resource type.",
              "items": {
                "type": "string",
                "format": "type-uri"
              }
            }
          }
        }
      }
    }
  ]
}