test/e2e/auth/node_authn.go - master - githubmirror/kubernetes

test/e2e/auth/node_authn.go
85 строк3 KB
Dan Winship
Fix the NodeAuthenticator e2e tests
19 фев 2026, 15:22
19 фев 2026, 15:22cf1db16
/*
Copyright 2018 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package auth

import (
	"context"
	"fmt"
	"net"
	"strconv"

	v1 "k8s.io/api/core/v1"
	"k8s.io/kubernetes/pkg/cluster/ports"
	"k8s.io/kubernetes/test/e2e/framework"
	e2enode "k8s.io/kubernetes/test/e2e/framework/node"
	e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
	e2eoutput "k8s.io/kubernetes/test/e2e/framework/pod/output"
	admissionapi "k8s.io/pod-security-admission/api"

	"github.com/onsi/ginkgo/v2"
	"github.com/onsi/gomega"
)

var _ = SIGDescribe("NodeAuthenticator", func() {

	f := framework.NewDefaultFramework("node-authn")
	f.NamespacePodSecurityLevel = admissionapi.LevelBaseline
	var ns string
	var nodeIP string
	ginkgo.BeforeEach(func(ctx context.Context) {
		ns = f.Namespace.Name

		nodes, err := e2enode.GetBoundedReadySchedulableNodes(ctx, f.ClientSet, 1)
		framework.ExpectNoError(err)

		family := v1.IPv4Protocol
		if framework.TestContext.ClusterIsIPv6() {
			family = v1.IPv6Protocol
		}

		nodeIP = e2enode.FirstAddressByTypeAndFamily(nodes, v1.NodeInternalIP, family)
		gomega.Expect(nodeIP).NotTo(gomega.BeEmpty())
	})

	ginkgo.It("The kubelet's main port 10250 should reject requests with no credentials", func(ctx context.Context) {
		pod := createNodeAuthTestPod(ctx, f)

		// Anonymous authentication is disabled by default
		host := net.JoinHostPort(nodeIP, strconv.Itoa(ports.KubeletPort))
		result := e2eoutput.RunHostCmdOrDie(ns, pod.Name, fmt.Sprintf("curl -sIk -o /dev/null -w '%s' https://%s/metrics", "%{http_code}", host))
		gomega.Expect(result).To(gomega.Or(gomega.Equal("401"), gomega.Equal("403")), "the kubelet's main port 10250 should reject requests with no credentials")
	})

	ginkgo.It("The kubelet can delegate ServiceAccount tokens to the API server", func(ctx context.Context) {
		pod := createNodeAuthTestPod(ctx, f)

		host := net.JoinHostPort(nodeIP, strconv.Itoa(ports.KubeletPort))
		result := e2eoutput.RunHostCmdOrDie(ns,
			pod.Name,
			fmt.Sprintf("curl -sIk -o /dev/null -w '%s' --header \"Authorization: Bearer `%s`\" https://%s/metrics",
				"%{http_code}",
				"cat /var/run/secrets/kubernetes.io/serviceaccount/token",
				host))
		gomega.Expect(result).To(gomega.Or(gomega.Equal("401"), gomega.Equal("403")), "the kubelet can delegate ServiceAccount tokens to the API server")
	})
})

func createNodeAuthTestPod(ctx context.Context, f *framework.Framework) *v1.Pod {
	pod := e2epod.NewAgnhostPod(f.Namespace.Name, "agnhost-pod", nil, nil, nil)
	pod.ObjectMeta.GenerateName = "test-node-authn-"
	return e2epod.NewPodClient(f).CreateSync(ctx, pod)
}