83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
// +build integration
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/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 integration
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import (
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"bytes"
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"path/filepath"
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"testing"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/kubernetes"
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pkgutil "k8s.io/minikube/pkg/util"
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"k8s.io/minikube/test/integration/util"
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)
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func testClusterDNS(t *testing.T) {
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t.Parallel()
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p := profileName(t)
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client, err := pkgutil.GetClient(p)
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if err != nil {
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t.Fatalf("Error getting kubernetes client %v", err)
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}
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kr := util.NewKubectlRunner(t, p)
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busybox := busyBoxPod(t, client, kr, p)
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defer func() {
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if _, err := kr.RunCommand([]string{"delete", "po", busybox}); err != nil {
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t.Errorf("delete failed: %v", err)
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}
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}()
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out := []byte{}
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nslookup := func() error {
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out, err = kr.RunCommand([]string{"exec", busybox, "nslookup", "kubernetes.default"})
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return err
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}
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if err := util.Retry(t, nslookup, 3*time.Second, 60); err != nil {
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t.Fatalf(err.Error())
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}
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clusterIP := []byte("10.96.0.1")
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if !bytes.Contains(out, clusterIP) {
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t.Errorf("output did not contain expected IP:\n%s", out)
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}
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}
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func busyBoxPod(t *testing.T, c kubernetes.Interface, kr *util.KubectlRunner, profile string) string {
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if _, err := kr.RunCommand([]string{"create", "-f", filepath.Join(*testdataDir, "busybox.yaml")}); err != nil {
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t.Fatalf("creating busybox pod: %s", err)
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}
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// TODO(tstromberg): Refactor WaitForBusyboxRunning to return name of pod.
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if err := util.WaitForBusyboxRunning(t, "default", profile); err != nil {
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t.Fatalf("Waiting for busybox pod to be up: %v", err)
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}
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pods, err := c.CoreV1().Pods("default").List(metav1.ListOptions{LabelSelector: "integration-test=busybox"})
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if err != nil {
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t.Fatalf("list error: %v", err)
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}
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if len(pods.Items) == 0 {
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t.Fatal("Expected a busybox pod to be running")
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}
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return pods.Items[0].Name
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}
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