Revert "CSI: enhance driver tests to update the drivers."

test/e2e/storage/BUILD

@@ -55,7 +55,6 @@ go_library(
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/errors:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
-        "//staging/src/k8s.io/apimachinery/pkg/util/json:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/rand:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/strategicpatch:go_default_library",

test/e2e/storage/csi_volumes.go

@@ -20,15 +20,11 @@ import (
 	"context"
 	"fmt"
 	"regexp"
-	"time"
 
-	appsv1 "k8s.io/api/apps/v1"
 	"k8s.io/api/core/v1"
 	storagev1 "k8s.io/api/storage/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/labels"
-	"k8s.io/apimachinery/pkg/util/json"
 	clientset "k8s.io/client-go/kubernetes"
 	csiv1alpha1 "k8s.io/csi-api/pkg/apis/csi/v1alpha1"
 	csiclient "k8s.io/csi-api/pkg/client/clientset/versioned"
@@ -46,11 +42,6 @@ import (
 	. "github.com/onsi/gomega"
 )
 
-const (
-	// Name of node annotation that contains JSON map of driver names to node
-	annotationKeyNodeID = "csi.volume.kubernetes.io/nodeid"
-)
-
 // List of testDrivers to be executed in below loop
 var csiTestDrivers = []func() drivers.TestDriver{
 	drivers.InitHostPathCSIDriver,
@@ -150,7 +141,6 @@ var _ = utils.SIGDescribe("CSI Volumes", func() {
 			})
 
 			testsuites.RunTestSuite(f, config, driver, csiTestSuites, csiTunePattern)
-			testCSIDriverUpdate(f, driver)
 		})
 	}
 
@@ -223,8 +213,7 @@ var _ = utils.SIGDescribe("CSI Volumes", func() {
 					ExpectedSize: "1Gi",
 					NodeName:     nodeName,
 				}
-				// Use exec to kill the pod quickly
-				class, claim, pod := startPod(cs, scTest, ns.Name, "exec sleep 6000")
+				class, claim, pod := startPausePod(cs, scTest, ns.Name)
 				if class != nil {
 					defer cs.StorageV1().StorageClasses().Delete(class.Name, nil)
 				}
@@ -300,7 +289,7 @@ func getVolumeHandle(cs clientset.Interface, claim *v1.PersistentVolumeClaim) st
 	return pv.Spec.CSI.VolumeHandle
 }
 
-func startPod(cs clientset.Interface, t testsuites.StorageClassTest, ns string, cmdline string) (*storagev1.StorageClass, *v1.PersistentVolumeClaim, *v1.Pod) {
+func startPausePod(cs clientset.Interface, t testsuites.StorageClassTest, ns string) (*storagev1.StorageClass, *v1.PersistentVolumeClaim, *v1.Pod) {
 	class := newStorageClass(t, ns, "")
 	class, err := cs.StorageV1().StorageClasses().Create(class)
 	framework.ExpectNoError(err, "Failed to create class : %v", err)
@@ -309,17 +298,6 @@ func startPod(cs clientset.Interface, t testsuites.StorageClassTest, ns string,
 	claim, err = cs.CoreV1().PersistentVolumeClaims(ns).Create(claim)
 	framework.ExpectNoError(err, "Failed to create claim: %v", err)
 
-	pod := getTestPod(t, claim, cmdline)
-
-	if len(t.NodeName) != 0 {
-		pod.Spec.NodeName = t.NodeName
-	}
-	pod, err = cs.CoreV1().Pods(ns).Create(pod)
-	framework.ExpectNoError(err, "Failed to create pod: %v", err)
-	return class, claim, pod
-}
-
-func getTestPod(t testsuites.StorageClassTest, claim *v1.PersistentVolumeClaim, cmdline string) *v1.Pod {
 	pod := &v1.Pod{
 		ObjectMeta: metav1.ObjectMeta{
 			GenerateName: "pvc-volume-tester-",
@@ -327,9 +305,8 @@ func getTestPod(t testsuites.StorageClassTest, claim *v1.PersistentVolumeClaim,
 		Spec: v1.PodSpec{
 			Containers: []v1.Container{
 				{
-					Name:    "volume-tester",
-					Image:   imageutils.GetE2EImage(imageutils.BusyBox),
-					Command: []string{"/bin/sh", "-c", cmdline},
+					Name:  "volume-tester",
+					Image: imageutils.GetE2EImage(imageutils.Pause),
 					VolumeMounts: []v1.VolumeMount{
 						{
 							Name:      "my-volume",
@@ -356,120 +333,7 @@ func getTestPod(t testsuites.StorageClassTest, claim *v1.PersistentVolumeClaim,
 	if len(t.NodeName) != 0 {
 		pod.Spec.NodeName = t.NodeName
 	}
-	return pod
-}
-
-func testCSIDriverUpdate(f *framework.Framework, driver drivers.TestDriver) {
-	// NOTE: this test assumes that all CSI drivers in csiTestDrivers deploy exactly one DaemonSet.
-	It("should work after update", func() {
-		cs := f.ClientSet
-
-		By("Checking the driver works before update")
-		var sc *storagev1.StorageClass
-		if dDriver, ok := driver.(drivers.DynamicPVTestDriver); ok {
-			sc = dDriver.GetDynamicProvisionStorageClass("")
-		}
-		nodeName := driver.GetDriverInfo().Config.ClientNodeName
-		scTest := testsuites.StorageClassTest{
-			Name:         driver.GetDriverInfo().Name,
-			Provisioner:  sc.Provisioner,
-			Parameters:   sc.Parameters,
-			ClaimSize:    "1Gi",
-			ExpectedSize: "1Gi",
-			NodeName:     nodeName,
-		}
-		class, claim, pod := startPod(cs, scTest, f.Namespace.Name, "echo 'test' > /mnt/test/data")
-
-		if class != nil {
-			defer cs.StorageV1().StorageClasses().Delete(class.Name, nil)
-		}
-		if claim != nil {
-			defer cs.CoreV1().PersistentVolumeClaims(f.Namespace.Name).Delete(claim.Name, nil)
-		}
-		if pod != nil {
-			// Fully delete (=unmount) the pod before deleting CSI driver
-			defer framework.DeletePodWithWait(f, cs, pod)
-		}
-		if pod == nil {
-			return
-		}
-		err := framework.WaitForPodSuccessInNamespace(cs, pod.Name, pod.Namespace)
-		framework.ExpectNoError(err, "Failed to start pod")
-		err = framework.DeletePodWithWait(f, cs, pod)
-
-		By("Finding CSI driver deployment")
-		ds, err := getDriverDaemonSet(f)
-		framework.ExpectNoError(err, "Failed to get driver DaemonSets")
-
-		By("Updating the driver")
-		ds, err = cs.AppsV1().DaemonSets(f.Namespace.Name).Get(ds.Name, metav1.GetOptions{})
-		framework.ExpectNoError(err, "Failed to get DaemonSet")
-
-		expectedUpdatedPods := ds.Status.DesiredNumberScheduled
-		framework.Logf("DaemonSet with driver has %d scheduled pods", expectedUpdatedPods)
-		// For debugging:
-		framework.Logf("DaemonSet status: %+v", ds.Status)
-
-		ds, err = framework.UpdateDaemonSetWithRetries(cs, f.Namespace.Name, ds.Name, func(ds *appsv1.DaemonSet) {
-			// Simulate driver update by adding a new label in DaemonSet template. This issues rolling update.
-			if ds.Spec.Template.Labels == nil {
-				ds.Spec.Template.Labels = map[string]string{}
-			}
-			ds.Spec.Template.Labels[f.UniqueName] = ""
-		})
-		framework.ExpectNoError(err, "Failed to update DaemonSet")
-
-		By("Waiting for the update to complete")
-		selector := labels.SelectorFromSet(labels.Set(map[string]string{f.UniqueName: ""}))
-		_, err = framework.WaitForPodsWithLabelRunningReady(cs, f.Namespace.Name, selector, int(expectedUpdatedPods), framework.PodStartTimeout)
-		framework.ExpectNoError(err, "Failed to wait for updated DaemonSet")
-
-		By("Checking the driver works after update with the same claim")
-		pod2 := getTestPod(scTest, claim, "grep test < /mnt/test/data")
-		pod2, err = cs.CoreV1().Pods(f.Namespace.Name).Create(pod2)
-		framework.ExpectNoError(err, "Failed to create pod")
-		defer framework.DeletePodWithWait(f, cs, pod2)
-
-		err = framework.WaitForPodSuccessInNamespace(cs, pod2.Name, pod2.Namespace)
-		framework.ExpectNoError(err, "Failed to start pod2")
-		pod2, err = cs.CoreV1().Pods(pod2.Namespace).Get(pod2.Name, metav1.GetOptions{})
-		framework.ExpectNoError(err, "Failed to get pod")
-		nodeName = pod2.Spec.NodeName
-		err = framework.DeletePodWithWait(f, cs, pod2)
-		framework.ExpectNoError(err, "Failed to delete pod2")
-
-		// #71424: check that NodeID annotation is set after update
-		node, err := cs.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{})
-		framework.ExpectNoError(err, "Failed to read node")
-		ann, found := node.Annotations[annotationKeyNodeID]
-		Expect(found).To(BeTrue(), "annotation with NodeID not found")
-		var nodeIDs map[string]string
-		err = json.Unmarshal([]byte(ann), &nodeIDs)
-		framework.ExpectNoError(err, "Failed to parse NodeID json")
-		_, ok := nodeIDs[class.Provisioner]
-		Expect(ok).To(BeTrue(), "NodeID of driver not found")
-
-		// By waiting for PVC deletion we make sure that the volume is detached, since most cloud providers
-		// wait for detach + we have finalizer on PVC.
-		claim, err = cs.CoreV1().PersistentVolumeClaims(f.Namespace.Name).Get(claim.Name, metav1.GetOptions{})
-		framework.ExpectNoError(err, "Failed to get PVC")
-		cs.CoreV1().PersistentVolumeClaims(f.Namespace.Name).Delete(claim.Name, nil)
-		err = framework.WaitForPersistentVolumeDeleted(cs, claim.Spec.VolumeName, 5*time.Second, 20*time.Minute)
-		framework.ExpectNoError(err, "Timed out waiting for PV to delete")
-	})
-}
-
-// getDriverDaemonSet finds *any* DaemonSet in framework's namespace and returns it.
-// It must be called just after driver installation, where the only DaemonSet in the
-// namespace must be the driver.
-func getDriverDaemonSet(f *framework.Framework) (*appsv1.DaemonSet, error) {
-	By("Finding CSI driver DaemonSet")
-	daemonSets, err := f.ClientSet.AppsV1().DaemonSets(f.Namespace.Name).List(metav1.ListOptions{})
-	if err != nil {
-		return nil, err
-	}
-	if len(daemonSets.Items) != 1 {
-		return nil, fmt.Errorf("Got %d DaemonSets in the namespace when only 1 was expected", len(daemonSets.Items))
-	}
-	return &daemonSets.Items[0], nil
+	pod, err = cs.CoreV1().Pods(ns).Create(pod)
+	framework.ExpectNoError(err, "Failed to create pod: %v", err)
+	return class, claim, pod
 }

test/e2e/testing-manifests/storage-csi/hostpath/hostpath-v0/csi-hostpathplugin.yaml

@@ -55,8 +55,6 @@ spec:
             - mountPath: /var/lib/kubelet/pods
               mountPropagation: Bidirectional
               name: mountpoint-dir
-            - mountPath: /tmp
-              name: tmp
       volumes:
         - hostPath:
             path: /var/lib/kubelet/plugins/csi-hostpath-v0
@@ -70,7 +68,3 @@ spec:
             path: /var/lib/kubelet/plugins
             type: Directory
           name: registration-dir
-        - name: tmp
-          hostPath:
-            path: /tmp
-            type: Directory

test/e2e/testing-manifests/storage-csi/hostpath/hostpath/csi-hostpathplugin.yaml

@@ -55,8 +55,6 @@ spec:
             - mountPath: /var/lib/kubelet/pods
               mountPropagation: Bidirectional
               name: mountpoint-dir
-            - mountPath: /tmp
-              name: tmp
       volumes:
         - hostPath:
             path: /var/lib/kubelet/plugins/csi-hostpath
@@ -70,7 +68,3 @@ spec:
             path: /var/lib/kubelet/plugins_registry
             type: Directory
           name: registration-dir
-        - name: tmp
-          hostPath:
-            path: /tmp
-            type: Directory