bd8cb8fae0
Quite a few images are only used a few times in a few tests. Thus, the images are being centralized into the agnhost image, reducing the number of images that have to be pulled and used. This PR replaces the usage of the following images with agnhost: - fakegitserver - hostexec - liveness - logs-generator - no-snat-test - no-snat-test-proxy - port-forward-tester
109 lines
3.8 KiB
Go
109 lines
3.8 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package auth
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import (
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"fmt"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/master/ports"
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"k8s.io/kubernetes/test/e2e/framework"
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imageutils "k8s.io/kubernetes/test/utils/image"
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"github.com/onsi/ginkgo"
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"github.com/onsi/gomega"
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)
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var _ = SIGDescribe("[Feature:NodeAuthenticator]", func() {
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f := framework.NewDefaultFramework("node-authn")
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var ns string
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var nodeIPs []string
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ginkgo.BeforeEach(func() {
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ns = f.Namespace.Name
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nodeList, err := f.ClientSet.CoreV1().Nodes().List(metav1.ListOptions{})
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framework.ExpectNoError(err, "failed to list nodes in namespace: %s", ns)
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gomega.Expect(len(nodeList.Items)).NotTo(gomega.BeZero())
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pickedNode := nodeList.Items[0]
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nodeIPs = framework.GetNodeAddresses(&pickedNode, v1.NodeExternalIP)
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// The pods running in the cluster can see the internal addresses.
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nodeIPs = append(nodeIPs, framework.GetNodeAddresses(&pickedNode, v1.NodeInternalIP)...)
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// make sure ServiceAccount admission controller is enabled, so secret generation on SA creation works
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saName := "default"
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sa, err := f.ClientSet.CoreV1().ServiceAccounts(ns).Get(saName, metav1.GetOptions{})
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framework.ExpectNoError(err, "failed to retrieve service account (%s:%s)", ns, saName)
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gomega.Expect(len(sa.Secrets)).NotTo(gomega.BeZero())
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})
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ginkgo.It("The kubelet's main port 10250 should reject requests with no credentials", func() {
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pod := createNodeAuthTestPod(f)
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for _, nodeIP := range nodeIPs {
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// Anonymous authentication is disabled by default
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result := framework.RunHostCmdOrDie(ns, pod.Name, fmt.Sprintf("curl -sIk -o /dev/null -w '%s' https://%s:%v/metrics", "%{http_code}", nodeIP, ports.KubeletPort))
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gomega.Expect(result).To(gomega.Or(gomega.Equal("401"), gomega.Equal("403")), "the kubelet's main port 10250 should reject requests with no credentials")
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}
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})
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ginkgo.It("The kubelet can delegate ServiceAccount tokens to the API server", func() {
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ginkgo.By("create a new ServiceAccount for authentication")
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trueValue := true
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newSA := &v1.ServiceAccount{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: ns,
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Name: "node-auth-newsa",
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},
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AutomountServiceAccountToken: &trueValue,
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}
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_, err := f.ClientSet.CoreV1().ServiceAccounts(ns).Create(newSA)
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framework.ExpectNoError(err, "failed to create service account (%s:%s)", ns, newSA.Name)
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pod := createNodeAuthTestPod(f)
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for _, nodeIP := range nodeIPs {
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result := framework.RunHostCmdOrDie(ns,
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pod.Name,
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fmt.Sprintf("curl -sIk -o /dev/null -w '%s' --header \"Authorization: Bearer `%s`\" https://%s:%v/metrics",
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"%{http_code}",
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"cat /var/run/secrets/kubernetes.io/serviceaccount/token",
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nodeIP, ports.KubeletPort))
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gomega.Expect(result).To(gomega.Or(gomega.Equal("401"), gomega.Equal("403")), "the kubelet can delegate ServiceAccount tokens to the API server")
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}
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})
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})
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func createNodeAuthTestPod(f *framework.Framework) *v1.Pod {
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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GenerateName: "test-node-authn-",
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{{
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Name: "test-node-authn",
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Image: imageutils.GetE2EImage(imageutils.Agnhost),
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Command: []string{"sleep", "3600"},
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}},
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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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return f.PodClient().CreateSync(pod)
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}
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