Add pvc template update e2e tests.

Signed-off-by: d-kuro <kurosawa7620@gmail.com>

e2e/partition_test.go

@@ -32,6 +32,9 @@ var forceRollingUpdateApplyYAML string
 //go:embed testdata/partition_image_pull_backoff.yaml
 var imagePullBackoffApplyYAML string
 
+//go:embed testdata/partition_volume_template.yaml
+var volumeTemplateApplyYAML string
+
 var _ = Context("partition_test", func() {
 	if doUpgrade {
 		return
@@ -160,6 +163,39 @@ var _ = Context("partition_test", func() {
 		Expect(updatedReplicasMetric.GetGauge().GetValue()).To(BeNumerically(">", 0))
 	})
 
+	It("should volume template change succeed", func() {
+		// add label for pvc
+		kubectlSafe(fillTemplate(volumeTemplateApplyYAML), "apply", "-f", "-")
+		Eventually(func() error {
+			cluster, err := getCluster("partition", "test")
+			if err != nil {
+				return err
+			}
+			for _, cond := range cluster.Status.Conditions {
+				if cond.Type != mocov1beta2.ConditionHealthy {
+					continue
+				}
+				if cond.Status == metav1.ConditionTrue {
+					return nil
+				}
+				return fmt.Errorf("cluster is not healthy: %s", cond.Status)
+			}
+
+			return errors.New("no health condition")
+		}).WithTimeout(time.Minute * 10).Should(Succeed())
+	})
+
+	It("should recreate statefulset", func() {
+		out, err := kubectl(nil, "get", "-n", "partition", "statefulset", "moco-test", "-o", "json")
+		Expect(err).NotTo(HaveOccurred())
+		sts := &appsv1.StatefulSet{}
+		err = json.Unmarshal(out, sts)
+		Expect(err).NotTo(HaveOccurred())
+		Expect(sts.Spec.UpdateStrategy.RollingUpdate).NotTo(BeNil())
+		Expect(*sts.Spec.UpdateStrategy.RollingUpdate.Partition).To(Equal(int32(0)))
+		Expect(sts.Spec.VolumeClaimTemplates[0].Labels["foo"]).To(Equal("bar"))
+	})
+
 	It("should image pull backoff", func() {
 		kubectlSafe(fillTemplate(imagePullBackoffApplyYAML), "apply", "-f", "-")
 		Eventually(func() error {

e2e/testdata/partition_volume_template.yaml

@@ -0,0 +1,25 @@
+apiVersion: moco.cybozu.com/v1beta2
+kind: MySQLCluster
+metadata:
+  namespace: partition
+  name: test
+spec:
+  replicas: 3
+  podTemplate:
+    spec:
+      containers:
+      - name: mysqld
+        image: ghcr.io/cybozu-go/moco/mysql:{{ . }}
+        resources:
+          requests:
+            cpu: 1m
+  volumeClaimTemplates:
+  - metadata:
+      name: mysql-data
+      labels:
+        foo: bar
+    spec:
+      accessModes: [ "ReadWriteOnce" ]
+      resources:
+        requests:
+          storage: 1Gi