133 lines
4.4 KiB
Go
133 lines
4.4 KiB
Go
// +build integration
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/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package integration
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"os/exec"
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"path"
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"strings"
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"testing"
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"time"
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core "k8s.io/api/core/v1"
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storage "k8s.io/api/storage/v1"
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"k8s.io/minikube/pkg/util/retry"
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)
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func validatePersistentVolumeClaim(ctx context.Context, t *testing.T, profile string) {
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defer PostMortemLogs(t, profile)
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ctx, cancel := context.WithTimeout(ctx, Minutes(10))
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defer cancel()
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if _, err := PodWait(ctx, t, profile, "kube-system", "integration-test=storage-provisioner", Minutes(4)); err != nil {
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t.Fatalf("failed waiting for storage-provisioner: %v", err)
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}
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checkStorageClass := func() error {
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rr, err := Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "get", "storageclass", "-o=json"))
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if err != nil {
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return err
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}
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scl := storage.StorageClassList{}
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if err := json.NewDecoder(bytes.NewReader(rr.Stdout.Bytes())).Decode(&scl); err != nil {
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return err
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}
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if len(scl.Items) == 0 {
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return fmt.Errorf("no storageclass yet")
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}
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return nil
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}
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// Ensure the addon-manager has created the StorageClass before creating a claim, otherwise it won't be bound
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if err := retry.Expo(checkStorageClass, time.Millisecond*500, Seconds(100)); err != nil {
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t.Errorf("failed to check for storage class: %v", err)
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}
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// Now create a testpvc
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rr, err := Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "apply", "-f", path.Join(*testdataDir, "storage-provisioner", "pvc.yaml")))
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if err != nil {
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t.Fatalf("kubectl apply pvc.yaml failed: args %q: %v", rr.Command(), err)
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}
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// make sure the pvc is Bound
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checkStoragePhase := func() error {
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rr, err := Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "get", "pvc", "myclaim", "-o=json"))
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if err != nil {
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return err
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}
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pvc := core.PersistentVolumeClaim{}
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if err := json.NewDecoder(bytes.NewReader(rr.Stdout.Bytes())).Decode(&pvc); err != nil {
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return err
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}
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// The test passes if the volume claim gets bound.
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if pvc.Status.Phase == "Bound" {
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return nil
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}
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return fmt.Errorf("testpvc phase = %q, want %q (msg=%+v)", pvc.Status.Phase, "Bound", pvc)
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}
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if err := retry.Expo(checkStoragePhase, 2*time.Second, Minutes(4)); err != nil {
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t.Fatalf("failed to check storage phase: %v", err)
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}
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// create a test pod that will mount the persistent volume
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createPVTestPod(ctx, t, profile)
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// write to the persistent volume
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podName := "sp-pod"
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rr, err = Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "exec", podName, "--", "touch", "/tmp/mount/foo"))
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if err != nil {
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t.Fatalf("creating file in pv: args %q: %v", rr.Command(), err)
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}
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// kill the pod
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rr, err = Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "delete", "-f", path.Join(*testdataDir, "storage-provisioner", "pod.yaml")))
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if err != nil {
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t.Fatalf("kubectl delete pod.yaml failed: args %q: %v", rr.Command(), err)
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}
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// recreate the pod
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createPVTestPod(ctx, t, profile)
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// make sure the file we previously wrote to the persistent volume still exists
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rr, err = Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "exec", podName, "--", "ls", "/tmp/mount"))
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if err != nil {
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t.Fatalf("creating file in pv: args %q: %v", rr.Command(), err)
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}
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if !strings.Contains(rr.Output(), "foo") {
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t.Fatalf("expected file foo to persist in pvc, instead got [%v] as files in pv", rr.Output())
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}
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}
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func createPVTestPod(ctx context.Context, t *testing.T, profile string) {
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// Deploy a pod that will mount the PV
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rr, err := Run(t, exec.CommandContext(ctx, "kubectl", "--context", profile, "apply", "-f", path.Join(*testdataDir, "storage-provisioner", "pod.yaml")))
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if err != nil {
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t.Fatalf("kubectl apply pvc.yaml failed: args %q: %v", rr.Command(), err)
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}
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// wait for pod to be running
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if _, err := PodWait(ctx, t, profile, "default", "test=storage-provisioner", Minutes(3)); err != nil {
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t.Fatalf("failed waiting for pod: %v", err)
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}
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}
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