Add e2e tests for volumeMode of persistent volume

test/e2e/framework/pv_util.go

@@ -48,6 +48,12 @@ const (
 	VolumeSelectorKey = "e2e-pv-pool"
 )
 
+var (
+	// Common selinux labels
+	SELinuxLabel = &v1.SELinuxOptions{
+		Level: "s0:c0,c1"}
+)
+
 // Map of all PVs used in the multi pv-pvc tests. The key is the PV's name, which is
 // guaranteed to be unique. The value is {} (empty struct) since we're only interested
 // in the PV's name and if it is present. We must always Get the pv object before

test/e2e/storage/BUILD

@@ -15,6 +15,7 @@ go_library(
         "persistent_volumes.go",
         "persistent_volumes-gce.go",
         "persistent_volumes-local.go",
+        "persistent_volumes-volumemode.go",
         "pv_protection.go",
         "pvc_protection.go",
         "regional_pd.go",

test/e2e/storage/utils/BUILD

@@ -19,6 +19,7 @@ go_library(
         "//test/e2e/framework:go_default_library",
         "//vendor/github.com/onsi/ginkgo:go_default_library",
         "//vendor/github.com/onsi/gomega:go_default_library",
+        "//vendor/k8s.io/utils/exec:go_default_library",
     ],
 )
 

test/e2e/storage/utils/utils.go

@@ -27,6 +27,7 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/kubernetes/test/e2e/framework"
+	uexec "k8s.io/utils/exec"
 )
 
 type KubeletOpt string
@@ -43,6 +44,41 @@ func PodExec(pod *v1.Pod, bashExec string) (string, error) {
 	return framework.RunKubectl("exec", fmt.Sprintf("--namespace=%s", pod.Namespace), pod.Name, "--", "/bin/sh", "-c", bashExec)
 }
 
+// VerifyExecInPodSucceed verifies bash cmd in target pod succeed
+func VerifyExecInPodSucceed(pod *v1.Pod, bashExec string) {
+	_, err := PodExec(pod, bashExec)
+	if err != nil {
+		if err, ok := err.(uexec.CodeExitError); ok {
+			exitCode := err.ExitStatus()
+			Expect(err).NotTo(HaveOccurred(),
+				"%q should succeed, but failed with exit code %d and error message %q",
+				bashExec, exitCode, err)
+		} else {
+			Expect(err).NotTo(HaveOccurred(),
+				"%q should succeed, but failed with error message %q",
+				bashExec, err)
+		}
+	}
+}
+
+// VerifyExecInPodFail verifies bash cmd in target pod fail with certain exit code
+func VerifyExecInPodFail(pod *v1.Pod, bashExec string, exitCode int) {
+	_, err := PodExec(pod, bashExec)
+	if err != nil {
+		if err, ok := err.(uexec.CodeExitError); ok {
+			actualExitCode := err.ExitStatus()
+			Expect(actualExitCode).To(Equal(exitCode),
+				"%q should fail with exit code %d, but failed with exit code %d and error message %q",
+				bashExec, exitCode, actualExitCode, err)
+		} else {
+			Expect(err).NotTo(HaveOccurred(),
+				"%q should fail with exit code %d, but failed with error message %q",
+				bashExec, exitCode, err)
+		}
+	}
+	Expect(err).To(HaveOccurred(), "%q should fail with exit code %d, but exit without error", bashExec, exitCode)
+}
+
 // KubeletCommand performs `start`, `restart`, or `stop` on the kubelet running on the node of the target pod and waits
 // for the desired statues..
 // - First issues the command via `systemctl`