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Merge pull request #417 from cybozu-go/d-kuro/pvc-e2e
Added e2e test to change pvc template
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| apiVersion: moco.cybozu.com/v1beta1 | ||
| kind: MySQLCluster | ||
| metadata: | ||
| namespace: default | ||
| name: test | ||
| spec: | ||
| replicas: 3 | ||
| podTemplate: | ||
| spec: | ||
| containers: | ||
| - name: mysqld | ||
| image: quay.io/cybozu/mysql:8.0.28 | ||
| volumeClaimTemplates: | ||
| - metadata: | ||
| name: mysql-data | ||
| spec: | ||
| accessModes: [ "ReadWriteOnce" ] | ||
| resources: | ||
| requests: | ||
| storage: 1Gi |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,197 @@ | ||
| package e2e | ||
|
|
||
| import ( | ||
| "bytes" | ||
| _ "embed" | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "reflect" | ||
|
|
||
| mocov1beta2 "github.com/cybozu-go/moco/api/v1beta2" | ||
| . "github.com/onsi/ginkgo" | ||
| . "github.com/onsi/gomega" | ||
| "github.com/prometheus/common/expfmt" | ||
| appsv1 "k8s.io/api/apps/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/resource" | ||
| ) | ||
|
|
||
| //go:embed testdata/pvc_test.yaml | ||
| var pvcTestYAML string | ||
|
|
||
| //go:embed testdata/pvc_test_changed.yaml | ||
| var pvcApplyYAML string | ||
|
|
||
| var _ = Context("pvc_test", func() { | ||
|
|
||
| It("should construct a cluster", func() { | ||
| kubectlSafe(fillTemplate(pvcTestYAML), "apply", "-f", "-") | ||
| Eventually(func() error { | ||
| cluster, err := getCluster("pvc", "cluster") | ||
| if err != nil { | ||
| return err | ||
| } | ||
| for _, cond := range cluster.Status.Conditions { | ||
| if cond.Type != mocov1beta2.ConditionHealthy { | ||
| continue | ||
| } | ||
| if cond.Status == corev1.ConditionTrue { | ||
| return nil | ||
| } | ||
| return fmt.Errorf("cluster is not healthy: %s", cond.Status) | ||
| } | ||
| return errors.New("no health condition") | ||
| }).Should(Succeed()) | ||
| }) | ||
|
|
||
| It("should pvc template change succeed", func() { | ||
| kubectlSafe(fillTemplate(pvcApplyYAML), "apply", "-f", "-") | ||
| Eventually(func() error { | ||
| cluster, err := getCluster("pvc", "cluster") | ||
| if err != nil { | ||
| return err | ||
| } | ||
| for _, cond := range cluster.Status.Conditions { | ||
| if cond.Type != mocov1beta2.ConditionHealthy { | ||
| continue | ||
| } | ||
| if cond.Status == corev1.ConditionTrue { | ||
| return nil | ||
| } | ||
| return fmt.Errorf("cluster is not healthy: %s", cond.Status) | ||
| } | ||
| return errors.New("no health condition") | ||
| }).Should(Succeed()) | ||
| }) | ||
|
|
||
| It("should statefulset re-created", func() { | ||
| cluster, err := getCluster("pvc", "cluster") | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| wantLabels := make(map[string]map[string]string) | ||
| for _, pvc := range cluster.Spec.VolumeClaimTemplates { | ||
| wantLabels[pvc.Name] = pvc.ObjectMeta.Labels | ||
| } | ||
|
|
||
| wantSizes := make(map[string]*resource.Quantity) | ||
| for _, pvc := range cluster.Spec.VolumeClaimTemplates { | ||
| wantSizes[pvc.Name] = pvc.Spec.Resources.Requests.Storage() | ||
| } | ||
|
|
||
| Eventually(func() error { | ||
| out, err := kubectl(nil, | ||
| "get", "sts", | ||
| "-n", "pvc", | ||
| "moco-cluster", | ||
| "-o", "json", | ||
| ) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| var sts appsv1.StatefulSet | ||
| if err := json.Unmarshal(out, &sts); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for _, pvc := range sts.Spec.VolumeClaimTemplates { | ||
| labels, ok := wantLabels[pvc.Name] | ||
| if !ok { | ||
| return fmt.Errorf("pvc %s is not expected", pvc.Name) | ||
| } | ||
|
|
||
| if !reflect.DeepEqual(pvc.ObjectMeta.Labels, labels) { | ||
| return fmt.Errorf("pvc %s labels are not expected", pvc.Name) | ||
| } | ||
|
|
||
| want, ok := wantSizes[pvc.Name] | ||
| if !ok { | ||
| return fmt.Errorf("pvc %s is not expected", pvc.Name) | ||
| } | ||
|
|
||
| if pvc.Spec.Resources.Requests.Storage().Cmp(*want) != 0 { | ||
| return fmt.Errorf("pvc %s is not expected size: %s", pvc.Name, pvc.Spec.Resources.Requests.Storage()) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| }).Should(Succeed()) | ||
| }) | ||
|
|
||
| It("should pvc resized", func() { | ||
| cluster, err := getCluster("pvc", "cluster") | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| wantSizes := make(map[string]*resource.Quantity) | ||
| for _, pvc := range cluster.Spec.VolumeClaimTemplates { | ||
| for i := int32(0); i < cluster.Spec.Replicas; i++ { | ||
| name := fmt.Sprintf("%s-%s-%d", pvc.Name, "moco-cluster", i) | ||
| wantSizes[name] = pvc.Spec.Resources.Requests.Storage() | ||
| } | ||
| } | ||
|
|
||
| Eventually(func() error { | ||
| out, err := kubectl(nil, | ||
| "get", "pvc", | ||
| "-n", "pvc", | ||
| "-l", "app.kubernetes.io/instance=cluster", | ||
| "-o", "json", | ||
| ) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| var pvcList corev1.PersistentVolumeClaimList | ||
| if err := json.Unmarshal(out, &pvcList); err != nil { | ||
| return err | ||
| } | ||
| if len(pvcList.Items) < 1 { | ||
| return errors.New("not found pvcs") | ||
| } | ||
|
|
||
| if len(pvcList.Items) != len(wantSizes) { | ||
| return fmt.Errorf("pvc count is not expected: %d", len(pvcList.Items)) | ||
| } | ||
|
|
||
| for _, pvc := range pvcList.Items { | ||
| want, ok := wantSizes[pvc.Name] | ||
| if !ok { | ||
| return fmt.Errorf("pvc %s is not expected", pvc.Name) | ||
| } | ||
|
|
||
| if pvc.Spec.Resources.Requests.Storage().Cmp(*want) != 0 { | ||
| return fmt.Errorf("pvc %s is not expected size: %s", pvc.Name, pvc.Spec.Resources.Requests.Storage()) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| }).Should(Succeed()) | ||
| }) | ||
|
|
||
| It("metrics", func() { | ||
| out := kubectlSafe(nil, "-n", "moco-system", "get", "pods", "-l", "app.kubernetes.io/component=moco-controller", "-o", "json") | ||
| pods := &corev1.PodList{} | ||
| err := json.Unmarshal(out, pods) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| Expect(pods.Items).To(HaveLen(1)) | ||
| addr := pods.Items[0].Status.PodIP | ||
| out, err = runInPod("curl", "-sf", fmt.Sprintf("http://%s:8080/metrics", addr)) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| mfs, err := (&expfmt.TextParser{}).TextToMetricFamilies(bytes.NewReader(out)) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| volumeMf := mfs["moco_cluster_volume_resized_total"] | ||
| Expect(volumeMf).NotTo(BeNil()) | ||
| volumeMetric := findMetric(volumeMf, map[string]string{"namespace": "pvc", "name": "cluster"}) | ||
| Expect(volumeMetric).NotTo(BeNil()) | ||
| Expect(volumeMetric.GetCounter().GetValue()).To(BeNumerically("==", 1)) | ||
|
|
||
| stsMf := mfs["moco_cluster_statefulset_recreate_total"] | ||
| Expect(stsMf).NotTo(BeNil()) | ||
| stsMetric := findMetric(stsMf, map[string]string{"namespace": "pvc", "name": "cluster"}) | ||
| Expect(stsMetric).NotTo(BeNil()) | ||
| Expect(stsMetric.GetCounter().GetValue()).To(BeNumerically("==", 1)) | ||
| }) | ||
| }) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| apiVersion: v1 | ||
| kind: Namespace | ||
| metadata: | ||
| name: pvc | ||
| --- | ||
| apiVersion: v1 | ||
| kind: ConfigMap | ||
| metadata: | ||
| namespace: pvc | ||
| name: mycnf | ||
| data: | ||
| innodb_log_file_size: "10M" | ||
| --- | ||
| apiVersion: storage.k8s.io/v1 | ||
| kind: StorageClass | ||
| metadata: | ||
| name: standard-allow-volume-expansion | ||
| provisioner: rancher.io/local-path | ||
| reclaimPolicy: Delete | ||
| volumeBindingMode: WaitForFirstConsumer | ||
| allowVolumeExpansion: true | ||
| --- | ||
| apiVersion: moco.cybozu.com/v1beta2 | ||
| kind: MySQLCluster | ||
| metadata: | ||
| namespace: pvc | ||
| name: cluster | ||
| spec: | ||
| replicas: 1 | ||
| mysqlConfigMapName: mycnf | ||
| podTemplate: | ||
| spec: | ||
| containers: | ||
| - name: mysqld | ||
| image: quay.io/cybozu/mysql:{{ . }} | ||
| # Specify minimum resources so as not to overwhelm CI resources. | ||
| overwriteContainers: | ||
| - name: agent | ||
| resources: | ||
| requests: | ||
| cpu: 1m | ||
| - name: moco-init | ||
| resources: | ||
| requests: | ||
| cpu: 1m | ||
| - name: slow-log | ||
| resources: | ||
| requests: | ||
| cpu: 1m | ||
| - name: mysqld-exporter | ||
| resources: | ||
| requests: | ||
| cpu: 1m | ||
| volumeClaimTemplates: | ||
| - metadata: | ||
| name: mysql-data | ||
| spec: | ||
| storageClassName: standard-allow-volume-expansion | ||
| accessModes: [ "ReadWriteOnce" ] | ||
| resources: | ||
| requests: | ||
| storage: 500Mi |
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