Merge pull request #3983 from zishen/transform-zone

transform zone to zones

pkg/apis/cluster/mutation/mutation.go

@@ -18,11 +18,20 @@ const (
 
 // MutateCluster mutates required fields of the Cluster.
 func MutateCluster(cluster *clusterapis.Cluster) {
-	MutateClusterTaints(cluster.Spec.Taints)
+	mutateClusterTaints(cluster.Spec.Taints)
+	migrateZoneToZones(cluster)
 }
 
-// MutateClusterTaints add TimeAdded field for cluster NoExecute taints only if TimeAdded not set.
-func MutateClusterTaints(taints []corev1.Taint) {
+// migrateZoneToZones add zones field for cluster if Zones not set but Zone set only.
+func migrateZoneToZones(cluster *clusterapis.Cluster) {
+	if cluster.Spec.Zone != "" && len(cluster.Spec.Zones) == 0 {
+		cluster.Spec.Zones = append(cluster.Spec.Zones, cluster.Spec.Zone)
+		cluster.Spec.Zone = ""
+	}
+}
+
+// mutateClusterTaints add TimeAdded field for cluster NoExecute taints only if TimeAdded not set.
+func mutateClusterTaints(taints []corev1.Taint) {
 	for i := range taints {
 		if taints[i].Effect == corev1.TaintEffectNoExecute && taints[i].TimeAdded == nil {
 			now := metav1.Now()

pkg/apis/cluster/mutation/mutation_test.go

@@ -1,6 +1,7 @@
 package mutation
 
 import (
+	"fmt"
 	"math"
 	"reflect"
 	"testing"
@@ -18,9 +19,10 @@ func TestMutateCluster(t *testing.T) {
 	tests := []struct {
 		name string
 		args args
+		fun  func(args) error
 	}{
 		{
-			name: "test mutate cluster",
+			name: "test mutate cluster Taints",
 			args: args{
 				cluster: &clusterapis.Cluster{
 					Spec: clusterapis.ClusterSpec{
@@ -33,20 +35,39 @@ func TestMutateCluster(t *testing.T) {
 							{
 								Key:    "bar",
 								Effect: corev1.TaintEffectNoExecute,
+							}}}},
+			},
+			fun: func(data args) error {
+				for i := range data.cluster.Spec.Taints {
+					if data.cluster.Spec.Taints[i].Effect == corev1.TaintEffectNoExecute && data.cluster.Spec.Taints[i].TimeAdded == nil {
+						return fmt.Errorf("failed to mutate cluster, taints TimeAdded should not be nil")
+					}
+				}
+				return nil
+			},
+		},
+		{
+			name: "test mutate cluster Zone",
+			args: args{
+				cluster: &clusterapis.Cluster{
+					Spec: clusterapis.ClusterSpec{
+						Zone: "zone1",
 					},
 				},
 			},
-				},
+			fun: func(data args) error {
+				if data.cluster.Spec.Zone != "" && len(data.cluster.Spec.Zones) == 0 {
+					return fmt.Errorf("failed to mutate cluster, zones should not be nil")
+				}
+				return nil
 			},
 		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			MutateCluster(tt.args.cluster)
-			for i := range tt.args.cluster.Spec.Taints {
-				if tt.args.cluster.Spec.Taints[i].Effect == corev1.TaintEffectNoExecute && tt.args.cluster.Spec.Taints[i].TimeAdded == nil {
-					t.Error("failed to mutate cluster, taints TimeAdded should not be nil")
-				}
+			if err := tt.fun(tt.args); err != nil {
+				t.Error(err)
 			}
 		})
 	}