70 lines
2.0 KiB
Go
70 lines
2.0 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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"fmt"
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"path/filepath"
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"strings"
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"testing"
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"time"
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"k8s.io/kubernetes/pkg/api"
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commonutil "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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kubectlRunner := util.NewKubectlRunner(t)
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podName := "busybox"
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podPath, _ := filepath.Abs("testdata/busybox.yaml")
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dnsTest := func() error {
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podNamespace := kubectlRunner.CreateRandomNamespace()
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defer kubectlRunner.DeleteNamespace(podNamespace)
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if _, err := kubectlRunner.RunCommand([]string{"create", "-f", podPath, "--namespace=" + podNamespace}); err != nil {
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return err
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}
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defer kubectlRunner.RunCommand([]string{"delete", "-f", podPath, "--namespace=" + podNamespace})
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p := &api.Pod{}
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for p.Status.Phase != "Running" {
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p = kubectlRunner.GetPod(podName, podNamespace)
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}
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dnsByteArr, err := kubectlRunner.RunCommand([]string{"exec", podName, "--namespace=" + podNamespace,
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"nslookup", "kubernetes.default"})
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dnsOutput := string(dnsByteArr)
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if err != nil {
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return &commonutil.RetriableError{Err: err}
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}
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if !strings.Contains(dnsOutput, "10.0.0.1") || !strings.Contains(dnsOutput, "10.0.0.10") {
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return fmt.Errorf("DNS lookup failed, could not find both 10.0.0.1 and 10.0.0.10. Output: %s", dnsOutput)
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}
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return nil
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}
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if err := commonutil.RetryAfter(40, dnsTest, 5*time.Second); err != nil {
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t.Fatal("DNS lookup failed with error:", err)
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}
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}
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