1495c9f2cd
This is to ensure that all existing tests don't break when defaulting the pod security policy to restricted in the e2e test framework.
78 lines
3.1 KiB
Go
78 lines
3.1 KiB
Go
/*
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Copyright 2019 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 kubeadm
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import (
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"context"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/kubernetes/test/e2e/framework"
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admissionapi "k8s.io/pod-security-admission/api"
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"github.com/onsi/ginkgo"
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"github.com/onsi/gomega"
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)
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const (
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controlPlaneLabel = "node-role.kubernetes.io/control-plane"
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// TODO: remove the legacy label in 1.25:
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// https://github.com/kubernetes/kubeadm/issues/2200
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controlPlaneLabelLegacy = "node-role.kubernetes.io/master"
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)
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// Define container for all the test specification aimed at verifying
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// that kubeadm configures the control-plane node as expected
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var _ = Describe("control-plane node", func() {
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// Get an instance of the k8s test framework
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f := framework.NewDefaultFramework("control-plane node")
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
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// Tests in this container are not expected to create new objects in the cluster
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// so we are disabling the creation of a namespace in order to get a faster execution
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f.SkipNamespaceCreation = true
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// Important! please note that this test can't be run on single-node clusters
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// in case you can skip this test with SKIP=multi-node
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ginkgo.It("should be labelled and tainted [multi-node]", func() {
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// get all control-plane nodes (and this implicitly checks that node are properly labeled)
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controlPlanes := getControlPlaneNodes(f.ClientSet)
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// checks if there is at least one control-plane node
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gomega.Expect(controlPlanes.Items).NotTo(gomega.BeEmpty(), "at least one node with label %s should exist. if you are running test on a single-node cluster, you can skip this test with SKIP=multi-node", controlPlaneLabel)
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// checks that the control-plane nodes have the expected taints
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// TODO: remove the legacy taint check in 1.25:
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// https://github.com/kubernetes/kubeadm/issues/2200
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for _, cp := range controlPlanes.Items {
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framework.ExpectNodeHasTaint(f.ClientSet, cp.GetName(), &corev1.Taint{Key: controlPlaneLabel, Effect: corev1.TaintEffectNoSchedule})
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framework.ExpectNodeHasTaint(f.ClientSet, cp.GetName(), &corev1.Taint{Key: controlPlaneLabelLegacy, Effect: corev1.TaintEffectNoSchedule})
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}
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})
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})
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func getControlPlaneNodes(c clientset.Interface) *corev1.NodeList {
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selector := labels.Set{controlPlaneLabel: ""}.AsSelector()
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cpNodes, err := c.CoreV1().Nodes().
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List(context.TODO(), metav1.ListOptions{LabelSelector: selector.String()})
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framework.ExpectNoError(err, "error reading control-plane nodes")
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return cpNodes
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}
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