Youhua Li

### Description **What problem are you trying to solve?** I created a nodepool but it didn't work. I checked Karpenter pod logs and see: `{"level":"ERROR","time":"2024-07-31T18:56:27.370Z","logger":"controller","message":"nodepool failed validation","commit":"490ef94","controller":"provisioner","NodePool":{"name":"xxxx"},"error":"invalid key name \"app.kubernetes.io/managed-by\":...