diff --git a/discovery/kubernetes/client_metrics.go b/discovery/kubernetes/client_metrics.go
index 992e16edc..a60ff48f2 100644
--- a/discovery/kubernetes/client_metrics.go
+++ b/discovery/kubernetes/client_metrics.go
@@ -109,19 +109,16 @@ func (noopMetric) Set(float64)     {}
 type clientGoRequestMetricAdapter struct{}
 
 func (f *clientGoRequestMetricAdapter) Register(registerer prometheus.Registerer) {
-	metrics.Register(metrics.RegisterOpts{
-		RequestLatency: f,
-		RequestResult:  f,
-	})
+	metrics.Register(f, f)
 	registerer.MustRegister(
 		clientGoRequestResultMetricVec,
 		clientGoRequestLatencyMetricVec,
 	)
 }
-func (clientGoRequestMetricAdapter) Increment(code string, _ string, _ string) {
+func (clientGoRequestMetricAdapter) Increment(code string, method string, host string) {
 	clientGoRequestResultMetricVec.WithLabelValues(code).Inc()
 }
-func (clientGoRequestMetricAdapter) Observe(_ string, u url.URL, latency time.Duration) {
+func (clientGoRequestMetricAdapter) Observe(verb string, u url.URL, latency time.Duration) {
 	clientGoRequestLatencyMetricVec.WithLabelValues(u.EscapedPath()).Observe(latency.Seconds())
 }
 
diff --git a/discovery/kubernetes/endpoints_test.go b/discovery/kubernetes/endpoints_test.go
index e73d8ba06..bc6250dc0 100644
--- a/discovery/kubernetes/endpoints_test.go
+++ b/discovery/kubernetes/endpoints_test.go
@@ -14,7 +14,6 @@
 package kubernetes
 
 import (
-	"context"
 	"testing"
 
 	"github.com/prometheus/common/model"
@@ -80,7 +79,7 @@ func TestEndpointsDiscoveryBeforeRun(t *testing.T) {
 		discovery: n,
 		beforeRun: func() {
 			obj := makeEndpoints()
-			c.CoreV1().Endpoints(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Endpoints(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes: map[string]*targetgroup.Group{
@@ -186,7 +185,7 @@ func TestEndpointsDiscoveryAdd(t *testing.T) {
 					},
 				},
 			}
-			c.CoreV1().Endpoints(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Endpoints(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes: map[string]*targetgroup.Group{
@@ -243,7 +242,7 @@ func TestEndpointsDiscoveryDelete(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeEndpoints()
-			c.CoreV1().Endpoints(obj.Namespace).Delete(context.Background(), obj.Name, metav1.DeleteOptions{})
+			c.CoreV1().Endpoints(obj.Namespace).Delete(obj.Name, &metav1.DeleteOptions{})
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -296,7 +295,7 @@ func TestEndpointsDiscoveryUpdate(t *testing.T) {
 					},
 				},
 			}
-			c.CoreV1().Endpoints(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{})
+			c.CoreV1().Endpoints(obj.Namespace).Update(obj)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -338,7 +337,7 @@ func TestEndpointsDiscoveryEmptySubsets(t *testing.T) {
 				},
 				Subsets: []v1.EndpointSubset{},
 			}
-			c.CoreV1().Endpoints(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{})
+			c.CoreV1().Endpoints(obj.Namespace).Update(obj)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -368,7 +367,7 @@ func TestEndpointsDiscoveryWithService(t *testing.T) {
 					},
 				},
 			}
-			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Services(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes: map[string]*targetgroup.Group{
@@ -423,7 +422,7 @@ func TestEndpointsDiscoveryWithServiceUpdate(t *testing.T) {
 					},
 				},
 			}
-			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Services(obj.Namespace).Create(obj)
 		},
 		afterStart: func() {
 			obj := &v1.Service{
@@ -436,7 +435,7 @@ func TestEndpointsDiscoveryWithServiceUpdate(t *testing.T) {
 					},
 				},
 			}
-			c.CoreV1().Services(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{})
+			c.CoreV1().Services(obj.Namespace).Update(obj)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
diff --git a/discovery/kubernetes/ingress_test.go b/discovery/kubernetes/ingress_test.go
index 894cb460e..4159545a8 100644
--- a/discovery/kubernetes/ingress_test.go
+++ b/discovery/kubernetes/ingress_test.go
@@ -14,7 +14,6 @@
 package kubernetes
 
 import (
-	"context"
 	"fmt"
 	"testing"
 
@@ -139,7 +138,7 @@ func TestIngressDiscoveryAdd(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeIngress(TLSNo)
-			c.ExtensionsV1beta1().Ingresses("default").Create(context.Background(), obj, metav1.CreateOptions{})
+			c.ExtensionsV1beta1().Ingresses("default").Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes:      expectedTargetGroups("default", TLSNo),
@@ -153,7 +152,7 @@ func TestIngressDiscoveryAddTLS(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeIngress(TLSYes)
-			c.ExtensionsV1beta1().Ingresses("default").Create(context.Background(), obj, metav1.CreateOptions{})
+			c.ExtensionsV1beta1().Ingresses("default").Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes:      expectedTargetGroups("default", TLSYes),
@@ -167,7 +166,7 @@ func TestIngressDiscoveryAddMixed(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeIngress(TLSMixed)
-			c.ExtensionsV1beta1().Ingresses("default").Create(context.Background(), obj, metav1.CreateOptions{})
+			c.ExtensionsV1beta1().Ingresses("default").Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes:      expectedTargetGroups("default", TLSMixed),
@@ -187,7 +186,7 @@ func TestIngressDiscoveryNamespaces(t *testing.T) {
 			for _, ns := range []string{"ns1", "ns2"} {
 				obj := makeIngress(TLSNo)
 				obj.Namespace = ns
-				c.ExtensionsV1beta1().Ingresses(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+				c.ExtensionsV1beta1().Ingresses(obj.Namespace).Create(obj)
 			}
 		},
 		expectedMaxItems: 2,
diff --git a/discovery/kubernetes/kubernetes.go b/discovery/kubernetes/kubernetes.go
index f39cf165d..9325794c7 100644
--- a/discovery/kubernetes/kubernetes.go
+++ b/discovery/kubernetes/kubernetes.go
@@ -317,12 +317,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 				ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 					options.FieldSelector = d.selectors.endpoints.field
 					options.LabelSelector = d.selectors.endpoints.label
-					return e.List(ctx, options)
+					return e.List(options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					options.FieldSelector = d.selectors.endpoints.field
 					options.LabelSelector = d.selectors.endpoints.label
-					return e.Watch(ctx, options)
+					return e.Watch(options)
 				},
 			}
 			s := d.client.CoreV1().Services(namespace)
@@ -330,12 +330,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 				ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 					options.FieldSelector = d.selectors.service.field
 					options.LabelSelector = d.selectors.service.label
-					return s.List(ctx, options)
+					return s.List(options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					options.FieldSelector = d.selectors.service.field
 					options.LabelSelector = d.selectors.service.label
-					return s.Watch(ctx, options)
+					return s.Watch(options)
 				},
 			}
 			p := d.client.CoreV1().Pods(namespace)
@@ -343,12 +343,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 				ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 					options.FieldSelector = d.selectors.pod.field
 					options.LabelSelector = d.selectors.pod.label
-					return p.List(ctx, options)
+					return p.List(options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					options.FieldSelector = d.selectors.pod.field
 					options.LabelSelector = d.selectors.pod.label
-					return p.Watch(ctx, options)
+					return p.Watch(options)
 				},
 			}
 			eps := NewEndpoints(
@@ -369,12 +369,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 				ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 					options.FieldSelector = d.selectors.pod.field
 					options.LabelSelector = d.selectors.pod.label
-					return p.List(ctx, options)
+					return p.List(options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					options.FieldSelector = d.selectors.pod.field
 					options.LabelSelector = d.selectors.pod.label
-					return p.Watch(ctx, options)
+					return p.Watch(options)
 				},
 			}
 			pod := NewPod(
@@ -391,12 +391,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 				ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 					options.FieldSelector = d.selectors.service.field
 					options.LabelSelector = d.selectors.service.label
-					return s.List(ctx, options)
+					return s.List(options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					options.FieldSelector = d.selectors.service.field
 					options.LabelSelector = d.selectors.service.label
-					return s.Watch(ctx, options)
+					return s.Watch(options)
 				},
 			}
 			svc := NewService(
@@ -413,12 +413,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 				ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 					options.FieldSelector = d.selectors.ingress.field
 					options.LabelSelector = d.selectors.ingress.label
-					return i.List(ctx, options)
+					return i.List(options)
 				},
 				WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 					options.FieldSelector = d.selectors.ingress.field
 					options.LabelSelector = d.selectors.ingress.label
-					return i.Watch(ctx, options)
+					return i.Watch(options)
 				},
 			}
 			ingress := NewIngress(
@@ -433,12 +433,12 @@ func (d *Discovery) Run(ctx context.Context, ch chan<- []*targetgroup.Group) {
 			ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
 				options.FieldSelector = d.selectors.node.field
 				options.LabelSelector = d.selectors.node.label
-				return d.client.CoreV1().Nodes().List(ctx, options)
+				return d.client.CoreV1().Nodes().List(options)
 			},
 			WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
 				options.FieldSelector = d.selectors.node.field
 				options.LabelSelector = d.selectors.node.label
-				return d.client.CoreV1().Nodes().Watch(ctx, options)
+				return d.client.CoreV1().Nodes().Watch(options)
 			},
 		}
 		node := NewNode(
diff --git a/discovery/kubernetes/node_test.go b/discovery/kubernetes/node_test.go
index 4a08eefc8..402b901a5 100644
--- a/discovery/kubernetes/node_test.go
+++ b/discovery/kubernetes/node_test.go
@@ -14,7 +14,6 @@
 package kubernetes
 
 import (
-	"context"
 	"fmt"
 	"testing"
 
@@ -64,7 +63,7 @@ func TestNodeDiscoveryBeforeStart(t *testing.T) {
 				map[string]string{"test-label": "testvalue"},
 				map[string]string{"test-annotation": "testannotationvalue"},
 			)
-			c.CoreV1().Nodes().Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Nodes().Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes: map[string]*targetgroup.Group{
@@ -96,7 +95,7 @@ func TestNodeDiscoveryAdd(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeEnumeratedNode(1)
-			c.CoreV1().Nodes().Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Nodes().Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes: map[string]*targetgroup.Group{
@@ -124,7 +123,7 @@ func TestNodeDiscoveryDelete(t *testing.T) {
 	k8sDiscoveryTest{
 		discovery: n,
 		afterStart: func() {
-			c.CoreV1().Nodes().Delete(context.Background(), obj.Name, metav1.DeleteOptions{})
+			c.CoreV1().Nodes().Delete(obj.Name, &metav1.DeleteOptions{})
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -142,14 +141,14 @@ func TestNodeDiscoveryUpdate(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj1 := makeEnumeratedNode(0)
-			c.CoreV1().Nodes().Create(context.Background(), obj1, metav1.CreateOptions{})
+			c.CoreV1().Nodes().Create(obj1)
 			obj2 := makeNode(
 				"test0",
 				"1.2.3.4",
 				map[string]string{"Unschedulable": "true"},
 				map[string]string{},
 			)
-			c.CoreV1().Nodes().Update(context.Background(), obj2, metav1.UpdateOptions{})
+			c.CoreV1().Nodes().Update(obj2)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
diff --git a/discovery/kubernetes/pod_test.go b/discovery/kubernetes/pod_test.go
index b40cd58f3..f5aaac60f 100644
--- a/discovery/kubernetes/pod_test.go
+++ b/discovery/kubernetes/pod_test.go
@@ -14,7 +14,6 @@
 package kubernetes
 
 import (
-	"context"
 	"fmt"
 	"testing"
 
@@ -197,7 +196,7 @@ func TestPodDiscoveryBeforeRun(t *testing.T) {
 		discovery: n,
 		beforeRun: func() {
 			obj := makeMultiPortPods()
-			c.CoreV1().Pods(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Pods(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes: map[string]*targetgroup.Group{
@@ -265,7 +264,7 @@ func TestPodDiscoveryInitContainer(t *testing.T) {
 		discovery: n,
 		beforeRun: func() {
 			obj := makeInitContainerPods()
-			c.CoreV1().Pods(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Pods(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes:      expected,
@@ -279,7 +278,7 @@ func TestPodDiscoveryAdd(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makePods()
-			c.CoreV1().Pods(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Pods(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 1,
 		expectedRes:      expectedPodTargetGroups("default"),
@@ -294,7 +293,7 @@ func TestPodDiscoveryDelete(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makePods()
-			c.CoreV1().Pods(obj.Namespace).Delete(context.Background(), obj.Name, metav1.DeleteOptions{})
+			c.CoreV1().Pods(obj.Namespace).Delete(obj.Name, &metav1.DeleteOptions{})
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -338,7 +337,7 @@ func TestPodDiscoveryUpdate(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makePods()
-			c.CoreV1().Pods(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{})
+			c.CoreV1().Pods(obj.Namespace).Update(obj)
 		},
 		expectedMaxItems: 2,
 		expectedRes:      expectedPodTargetGroups("default"),
@@ -355,10 +354,10 @@ func TestPodDiscoveryUpdateEmptyPodIP(t *testing.T) {
 	k8sDiscoveryTest{
 		discovery: n,
 		beforeRun: func() {
-			c.CoreV1().Pods(initialPod.Namespace).Create(context.Background(), initialPod, metav1.CreateOptions{})
+			c.CoreV1().Pods(initialPod.Namespace).Create(initialPod)
 		},
 		afterStart: func() {
-			c.CoreV1().Pods(updatedPod.Namespace).Update(context.Background(), updatedPod, metav1.UpdateOptions{})
+			c.CoreV1().Pods(updatedPod.Namespace).Update(updatedPod)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -382,7 +381,7 @@ func TestPodDiscoveryNamespaces(t *testing.T) {
 			for _, ns := range []string{"ns1", "ns2"} {
 				pod := makePods()
 				pod.Namespace = ns
-				c.CoreV1().Pods(pod.Namespace).Create(context.Background(), pod, metav1.CreateOptions{})
+				c.CoreV1().Pods(pod.Namespace).Create(pod)
 			}
 		},
 		expectedMaxItems: 2,
diff --git a/discovery/kubernetes/service_test.go b/discovery/kubernetes/service_test.go
index a54e084d2..7011aa24d 100644
--- a/discovery/kubernetes/service_test.go
+++ b/discovery/kubernetes/service_test.go
@@ -14,7 +14,6 @@
 package kubernetes
 
 import (
-	"context"
 	"fmt"
 	"testing"
 
@@ -103,9 +102,9 @@ func TestServiceDiscoveryAdd(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeService()
-			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Services(obj.Namespace).Create(obj)
 			obj = makeExternalService()
-			c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+			c.CoreV1().Services(obj.Namespace).Create(obj)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -152,7 +151,7 @@ func TestServiceDiscoveryDelete(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeService()
-			c.CoreV1().Services(obj.Namespace).Delete(context.Background(), obj.Name, metav1.DeleteOptions{})
+			c.CoreV1().Services(obj.Namespace).Delete(obj.Name, &metav1.DeleteOptions{})
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -170,7 +169,7 @@ func TestServiceDiscoveryUpdate(t *testing.T) {
 		discovery: n,
 		afterStart: func() {
 			obj := makeMultiPortService()
-			c.CoreV1().Services(obj.Namespace).Update(context.Background(), obj, metav1.UpdateOptions{})
+			c.CoreV1().Services(obj.Namespace).Update(obj)
 		},
 		expectedMaxItems: 2,
 		expectedRes: map[string]*targetgroup.Group{
@@ -214,7 +213,7 @@ func TestServiceDiscoveryNamespaces(t *testing.T) {
 			for _, ns := range []string{"ns1", "ns2"} {
 				obj := makeService()
 				obj.Namespace = ns
-				c.CoreV1().Services(obj.Namespace).Create(context.Background(), obj, metav1.CreateOptions{})
+				c.CoreV1().Services(obj.Namespace).Create(obj)
 			}
 		},
 		expectedMaxItems: 2,