Merge pull request #134755 from neolit123/1.35-add-missing-statefullset-fuzzer-defaulting

apis/apps/fuzzer: add missing MaxUnavailable defaulting

pkg/apis/apps/fuzzer/fuzzer.go

@@ -26,6 +26,7 @@ import (
 	runtimeserializer "k8s.io/apimachinery/pkg/runtime/serializer"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"k8s.io/kubernetes/pkg/apis/apps"
+	"k8s.io/utils/ptr"
 )
 
 // Funcs returns the fuzzer functions for the apps api group.
@@ -71,6 +72,9 @@ var Funcs = func(codecs runtimeserializer.CodecFactory) []interface{} {
 			if len(s.Labels) == 0 {
 				s.Labels = s.Spec.Template.Labels
 			}
+			if s.Spec.UpdateStrategy.RollingUpdate != nil && s.Spec.UpdateStrategy.RollingUpdate.MaxUnavailable == nil {
+				s.Spec.UpdateStrategy.RollingUpdate.MaxUnavailable = ptr.To(intstr.FromInt32(1))
+			}
 		},
 		func(j *apps.Deployment, c randfill.Continue) {
 			c.FillNoCustom(j)