From e03c72e8551d1c8f51270da0faa40b1235d03e1c Mon Sep 17 00:00:00 2001
From: Alena Prokharchyk <alena@rancher.com>
Date: Tue, 29 May 2018 14:34:53 -0700
Subject: [PATCH] DnsLabelRestricted type to validate against RFC 1035

k8s uses restricted format for services

dnsLabelRestricted: dns1035LabelFmt string = "[a-z]([-a-z0-9]*[a-z0-9])?"
dnsLabel:dns1123LabelFmt string = "[a-z0-9]([-a-z0-9]*[a-z0-9])?"
---
 generator/generator.go   |  2 ++
 parse/builder/builder.go | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/generator/generator.go b/generator/generator.go
index aba26901..27df2039 100644
--- a/generator/generator.go
+++ b/generator/generator.go
@@ -78,6 +78,8 @@ func getTypeString(nullable bool, typeName string, schema *types.Schema, schemas
 		return "intstr.IntOrString"
 	case "dnsLabel":
 		return "string"
+	case "dnsLabelRestricted":
+		return "string"
 	case "hostname":
 		return "string"
 	default:
diff --git a/parse/builder/builder.go b/parse/builder/builder.go
index f3a6d343..540f7270 100644
--- a/parse/builder/builder.go
+++ b/parse/builder/builder.go
@@ -272,6 +272,18 @@ func (b *Builder) convert(fieldType string, value interface{}, op Operation) (in
 			}
 		}
 		return str, nil
+	case "dnsLabelRestricted":
+		str := convert.ToString(value)
+		if str == "" {
+			return "", nil
+		}
+		if op == Create || op == Update {
+			if errs := validation.IsDNS1035Label(str); len(errs) != 0 {
+				return value, httperror.NewAPIError(httperror.InvalidFormat, fmt.Sprintf("invalid value %s: %s", value,
+					strings.Join(errs, ",")))
+			}
+		}
+		return str, nil
 	case "hostname":
 		str := convert.ToString(value)
 		if str == "" {