diff --git a/internal/expansion/expand_test.go b/internal/expansion/expand_test.go
index 55a7f4e26..6326994f1 100644
--- a/internal/expansion/expand_test.go
+++ b/internal/expansion/expand_test.go
@@ -2,24 +2,13 @@ package expansion
 
 import (
 	"testing"
-
-	api "k8s.io/kubernetes/pkg/apis/core"
 )
 
 func TestMapReference(t *testing.T) {
-	envs := []api.EnvVar{
-		{
-			Name:  "FOO",
-			Value: "bar",
-		},
-		{
-			Name:  "ZOO",
-			Value: "$(FOO)-1",
-		},
-		{
-			Name:  "BLU",
-			Value: "$(ZOO)-2",
-		},
+	envs := map[string]string{
+		"FOO": "bar",
+		"ZOO": "$(FOO)-1",
+		"BLU": "$(ZOO)-2",
 	}
 
 	declaredEnv := map[string]string{
@@ -32,8 +21,8 @@ func TestMapReference(t *testing.T) {
 
 	mapping := MappingFuncFor(declaredEnv, serviceEnv)
 
-	for _, env := range envs {
-		declaredEnv[env.Name] = Expand(env.Value, mapping)
+	for k, v := range envs {
+		declaredEnv[k] = Expand(v, mapping)
 	}
 
 	expectedEnv := map[string]string{
diff --git a/internal/podutils/env.go b/internal/podutils/env.go
index 2914589f1..b78faaa8e 100644
--- a/internal/podutils/env.go
+++ b/internal/podutils/env.go
@@ -30,7 +30,6 @@ import (
 	apivalidation "k8s.io/apimachinery/pkg/util/validation"
 	"k8s.io/client-go/tools/record"
 	podshelper "k8s.io/kubernetes/pkg/apis/core/pods"
-	v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
 	fieldpath "k8s.io/kubernetes/pkg/fieldpath"
 	"k8s.io/kubernetes/pkg/kubelet/envvars"
 	"k8s.io/utils/pointer"
@@ -121,6 +120,10 @@ func populateContainerEnvironment(ctx context.Context, pod *corev1.Pod, containe
 	return nil
 }
 
+func isServiceIPSet(service *corev1.Service) bool {
+	return service.Spec.ClusterIP != corev1.ClusterIPNone && service.Spec.ClusterIP != ""
+}
+
 // getServiceEnvVarMap makes a map[string]string of env vars for services a
 // pod in namespace ns should see.
 // Based on getServiceEnvVarMap in kubelet_pods.go.
@@ -139,7 +142,7 @@ func getServiceEnvVarMap(rm *manager.ResourceManager, ns string, enableServiceLi
 	for i := range services {
 		service := services[i]
 		// ignore services where ClusterIP is "None" or empty
-		if !v1helper.IsServiceIPSet(service) {
+		if !isServiceIPSet(service) {
 			continue
 		}
 		serviceName := service.Name
diff --git a/internal/test/e2e/framework/pod.go b/internal/test/e2e/framework/pod.go
index 7a3f93d79..0d2e46ed7 100644
--- a/internal/test/e2e/framework/pod.go
+++ b/internal/test/e2e/framework/pod.go
@@ -6,13 +6,13 @@ import (
 	"strings"
 
 	corev1 "k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/runtime"
 	watchapi "k8s.io/apimachinery/pkg/watch"
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/client-go/tools/watch"
-	podutil "k8s.io/kubernetes/pkg/api/v1/pod"
 )
 
 // CreateDummyPodObjectWithPrefix creates a dujmmy pod object using the specified prefix as the value of .metadata.generateName.
@@ -101,10 +101,20 @@ func (f *Framework) WaitUntilPodCondition(namespace, name string, fn watch.Condi
 func (f *Framework) WaitUntilPodReady(namespace, name string) (*corev1.Pod, error) {
 	return f.WaitUntilPodCondition(namespace, name, func(event watchapi.Event) (bool, error) {
 		pod := event.Object.(*corev1.Pod)
-		return pod.Status.Phase == corev1.PodRunning && podutil.IsPodReady(pod) && pod.Status.PodIP != "", nil
+		return pod.Status.Phase == corev1.PodRunning && IsPodReady(pod) && pod.Status.PodIP != "", nil
 	})
 }
 
+// IsPodReady returns true if a pod is ready.
+func IsPodReady(pod *v1.Pod) bool {
+	for _, cond := range pod.Status.Conditions {
+		if cond.Type == v1.PodReady && cond.Status == v1.ConditionTrue {
+			return true
+		}
+	}
+	return false
+}
+
 // WaitUntilPodDeleted blocks until the pod with the specified name and namespace is deleted from apiserver.
 func (f *Framework) WaitUntilPodDeleted(namespace, name string) (*corev1.Pod, error) {
 	return f.WaitUntilPodCondition(namespace, name, func(event watchapi.Event) (bool, error) {
diff --git a/node/api/exec.go b/node/api/exec.go
index b1eca4b7d..9f493199a 100644
--- a/node/api/exec.go
+++ b/node/api/exec.go
@@ -27,7 +27,6 @@ import (
 	"github.com/virtual-kubelet/virtual-kubelet/internal/kubernetes/remotecommand"
 	"k8s.io/apimachinery/pkg/types"
 	remoteutils "k8s.io/client-go/tools/remotecommand"
-	api "k8s.io/kubernetes/pkg/apis/core"
 )
 
 // ContainerExecHandlerFunc defines the handler function used for "execing" into a
@@ -136,11 +135,18 @@ func HandleContainerExec(h ContainerExecHandlerFunc, opts ...ContainerExecHandle
 	})
 }
 
+const (
+	execTTYParam    = "tty"
+	execStdinParam  = "input"
+	execStdoutParam = "output"
+	execStderrParam = "error"
+)
+
 func getExecOptions(req *http.Request) (*remotecommand.Options, error) {
-	tty := req.FormValue(api.ExecTTYParam) == "1"
-	stdin := req.FormValue(api.ExecStdinParam) == "1"
-	stdout := req.FormValue(api.ExecStdoutParam) == "1"
-	stderr := req.FormValue(api.ExecStderrParam) == "1"
+	tty := req.FormValue(execTTYParam) == "1"
+	stdin := req.FormValue(execStdinParam) == "1"
+	stdout := req.FormValue(execStdoutParam) == "1"
+	stderr := req.FormValue(execStderrParam) == "1"
 	if tty && stderr {
 		return nil, errors.New("cannot exec with tty and stderr")
 	}