validation

func IsQualifiedName ¶

func IsQualifiedName(value string) []string

IsQualifiedName reports whether value is a valid Kubernetes qualified name (label key), the format used by frp for proxy annotation keys. If value is invalid, it returns one message per violation; an empty result means valid.

The function does not normalize case: callers that accept case-insensitive keys must lowercase value themselves (frp's annotation validation passes strings.ToLower(key)).