Added oomkill test for init container and fix typos

test/e2e_node/oomkiller_linux_test.go

@@ -41,12 +41,20 @@ var _ = SIGDescribe("OOMKiller [LinuxOnly] [NodeConformance]", func() {
 	f := framework.NewDefaultFramework("oomkiller-test")
 	f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged
 
-	testCases := []testCase{{
+	testCases := []testCase{
+		{
 			name:                   "single process container",
 			oomTargetContainerName: "oomkill-single-target-container",
 			podSpec: getOOMTargetPod("oomkill-target-pod", "oomkill-single-target-container",
 				getOOMTargetContainer),
-	}}
+		},
+		{
+			name:                   "init container",
+			oomTargetContainerName: "oomkill-target-init-container",
+			podSpec: getInitContainerOOMTargetPod("initcontinar-oomkill-target-pod", "oomkill-target-init-container",
+				getOOMTargetContainer),
+		},
+	}
 
 	// If using cgroup v2, we set memory.oom.group=1 for the container cgroup so that any process which gets OOM killed
 	// in the process, causes all processes in the container to get OOM killed
@@ -118,6 +126,26 @@ func getOOMTargetPod(podName string, ctnName string, createContainer func(name s
 	}
 }
 
+func getInitContainerOOMTargetPod(podName string, ctnName string, createContainer func(name string) v1.Container) *v1.Pod {
+	return &v1.Pod{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: podName,
+		},
+		Spec: v1.PodSpec{
+			RestartPolicy: v1.RestartPolicyNever,
+			InitContainers: []v1.Container{
+				createContainer(ctnName),
+			},
+			Containers: []v1.Container{
+				{
+					Name:  "busybox",
+					Image: busyboxImage,
+				},
+			},
+		},
+	}
+}
+
 // getOOMTargetContainer returns a container with a single process, which attempts to allocate more memory than is
 // allowed by the container memory limit.
 func getOOMTargetContainer(name string) v1.Container {

test/e2e_node/pods_lifecycle_termination_test.go

@@ -109,13 +109,13 @@ func getSigkillTargetPod(podName string, ctnName string) *v1.Pod {
 					Image: busyboxImage,
 					// In the main container, SIGTERM was trapped and later /tmp/healthy
 					// will be created for readiness probe to verify if the trap was
-					// excucuted successfully
+					// executed successfully
 					Command: []string{
 						"sh",
 						"-c",
 						"trap \"echo SIGTERM caught\" SIGTERM SIGINT; touch /tmp/healthy; sleep 1000",
 					},
-					// Using readinessprobe to guarantee signal handler registering finished
+					// Using readiness probe to guarantee signal handler registering finished
 					ReadinessProbe: &v1.Probe{
 						InitialDelaySeconds: 1,
 						TimeoutSeconds:      2,