corevalidation "k8s.io/kubernetes/pkg/apis/core/validation"
	"k8s.io/kubernetes/pkg/apis/resource"
)

var (
	validateInstanceName  = corevalidation.ValidateDNS1123Subdomain
	validateAttributeName = corevalidation.ValidateDNS1123Subdomain
)

type Options struct {
	// StoredExpressions must be true if and only if validating CEL
	// expressions that were already stored persistently. This makes

	for _, msg := range validation.IsQualifiedName(value) {
		allErrs = append(allErrs, field.Invalid(fldPath, value, msg))
	}
	return allErrs
}

// ValidateDNS1123Subdomain validates that a name is a proper DNS subdomain.
func ValidateDNS1123Subdomain(value string, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}
	for _, msg := range validation.IsDNS1123Subdomain(value) {