Use HTTPClientFor instead of defaultHTTPClient

This allows for the http client to accept certificates from the kind
cluster.

Author: SimonTheLeg

test/e2e/e2e_test.go

@@ -6,14 +6,14 @@ package e2e
 import (
 	"context"
 	"fmt"
-	"net/http"
 	"time"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 	"github.com/onsi/gomega/format"
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/client-go/rest"
 	"k8s.io/klog/v2"
 	"k8s.io/kubectl/pkg/scheme"
 	"sigs.k8s.io/cli-utils/test/e2e/e2eutil"
@@ -68,7 +68,9 @@ var _ = BeforeSuite(func() {
 	inventoryConfigs[ConfigMapTypeInvConfig] = invconfig.NewConfigMapTypeInvConfig(cfg)
 	inventoryConfigs[CustomTypeInvConfig] = invconfig.NewCustomTypeInvConfig(cfg)
 
-	mapper, err := apiutil.NewDynamicRESTMapper(cfg, http.DefaultClient)
+	httpClient, err := rest.HTTPClientFor(cfg)
+	Expect(err).NotTo(HaveOccurred())
+	mapper, err := apiutil.NewDynamicRESTMapper(cfg, httpClient)
 	Expect(err).NotTo(HaveOccurred())
 
 	c, err = client.New(cfg, client.Options{

test/stress/stress_test.go

@@ -5,13 +5,13 @@ package stress
 
 import (
 	"context"
-	"net/http"
 	"time"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 	"github.com/onsi/gomega/format"
 	v1 "k8s.io/api/core/v1"
+	"k8s.io/client-go/rest"
 	"k8s.io/klog/v2"
 	"k8s.io/kubectl/pkg/scheme"
 	"sigs.k8s.io/cli-utils/test/e2e/e2eutil"
@@ -55,7 +55,9 @@ var _ = BeforeSuite(func() {
 
 	invConfig = invconfig.NewCustomTypeInvConfig(cfg)
 
-	mapper, err := apiutil.NewDynamicRESTMapper(cfg, http.DefaultClient)
+	httpClient, err := rest.HTTPClientFor(cfg)
+	Expect(err).NotTo(HaveOccurred())
+	mapper, err := apiutil.NewDynamicRESTMapper(cfg, httpClient)
 	Expect(err).NotTo(HaveOccurred())
 
 	c, err = client.New(cfg, client.Options{