Update ObjectReference to use ResourceVersion string everywhere

Breaks backwards compat for anyone using older versions

pkg/api/v1beta1/conversion.go

@@ -59,36 +59,6 @@ func init() {
 			return nil
 		},
 
-		// ObjectReference has changed type of ResourceVersion internally
-		func(in *newer.ObjectReference, out *ObjectReference, s conversion.Scope) error {
-			out.APIVersion = in.APIVersion
-			out.Kind = in.Kind
-			out.Namespace = in.Namespace
-			out.Name = in.Name
-			out.FieldPath = in.FieldPath
-
-			if len(in.ResourceVersion) > 0 {
-				v, err := strconv.ParseUint(in.ResourceVersion, 10, 64)
-				if err != nil {
-					return err
-				}
-				out.ResourceVersion = v
-			}
-			return nil
-		},
-		func(in *ObjectReference, out *newer.ObjectReference, s conversion.Scope) error {
-			out.APIVersion = in.APIVersion
-			out.Kind = in.Kind
-			out.Namespace = in.Namespace
-			out.Name = in.Name
-			out.FieldPath = in.FieldPath
-
-			if in.ResourceVersion != 0 {
-				out.ResourceVersion = strconv.FormatUint(in.ResourceVersion, 10)
-			}
-			return nil
-		},
-
 		// EnvVar's Key is deprecated in favor of Name.
 		func(in *newer.EnvVar, out *EnvVar, s conversion.Scope) error {
 			out.Value = in.Value

pkg/api/v1beta1/types.go

@@ -638,7 +638,7 @@ type ObjectReference struct {
 	Name            string `json:"name,omitempty" yaml:"name,omitempty"`
 	UID             string `json:"uid,omitempty" yaml:"uid,omitempty"`
 	APIVersion      string `json:"apiVersion,omitempty" yaml:"apiVersion,omitempty"`
-	ResourceVersion uint64 `json:"resourceVersion,omitempty" yaml:"resourceVersion,omitempty"`
+	ResourceVersion string `json:"resourceVersion,omitempty" yaml:"resourceVersion,omitempty"`
 
 	// Optional. If referring to a piece of an object instead of an entire object, this string
 	// should contain a valid field access statement. For example,