We are trying to upgrade from v1.11.5. However, we are blocked because ingress-nginx now blocks our nginx.ingress.kubernetes.io/auth-tls-error-page annotations.

We have defined some custom nginx locations in a server snippet annotation like so:

  server-snippet: |
    location @401 {
      internal;
      return 401;
    }

Then we set nginx.ingress.kubernetes.io/auth-tls-error-page: "@401" annotation in the Ingress.

In v1.11.5, this works. In the latest release, this is rejected.

E0808 05:40:43.123532 7 annotations.go:193] "ingress contains invalid annotation value" err="annotation nginx.ingress.kubernetes.io/auth-tls-error-page contains invalid value"

Please fix the regex to allow named locations.