code: func ControllerRevisionName(prefix string, hash string) string {
  	if len(prefix) > 223 {
  		prefix = prefix[:223]
  	}
  
  	return fmt.Sprintf("%s-%s", prefix, hash)
  }
docs: // ControllerRevisionName returns the Name for a ControllerRevision in the form prefix-hash. If the length
  // of prefix is greater than 223 bytes, it is truncated to allow for a name that is no larger than 253 bytes.