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All code must use the context from Ginkgo when doing API calls or polling for a change, otherwise the code would not return immediately when the test gets aborted.
73 lines
2.8 KiB
Go
73 lines
2.8 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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e2enode "k8s.io/kubernetes/test/e2e/framework/node"
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admissionapi "k8s.io/pod-security-admission/api"
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"github.com/onsi/ginkgo/v2"
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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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)
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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(ctx context.Context) {
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// get all control-plane nodes (and this implicitly checks that node are properly labeled)
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controlPlanes := getControlPlaneNodes(ctx, 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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for _, cp := range controlPlanes.Items {
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e2enode.ExpectNodeHasTaint(ctx, f.ClientSet, cp.GetName(), &corev1.Taint{Key: controlPlaneLabel, Effect: corev1.TaintEffectNoSchedule})
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}
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})
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})
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func getControlPlaneNodes(ctx context.Context, 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(ctx, 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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