Labels specified in the Gatway Infrastructure (i.e., .spec.infrastructure.labels) might be invalid #3197
Description
This enhancement request is related 6990 to GEP: In Cluster Gateway Deployments (#1762)
What would you like to be added:
Along with AnnotationValue (which was introduced in #886), a new type alias called LabelValue should be introduced. Label values follow a well-defined format that can be validated using a pattern:
Valid label value:
- must be 63 characters or less (can be empty),
- unless empty, must begin and end with an alphanumeric character (
[a-z0-9A-Z]),- could contain dashes (
-), underscores (_), dots (.), and alphanumerics between.Reference: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
Why this is needed:
If users can specify invalid label values in the Gateway resource, it may cause issues in the controllers if the values are not validated. The validation in the API schema eliminates the need for each controller to implement its own validation.