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Windows-linux connectivity

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This commit is contained in:
Vy Ta 2019-02-25 13:14:29 -08:00
parent 59987e7410
commit 2869c67076
1 changed files with 56 additions and 25 deletions
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81
test/e2e/windows/hybrid_network.go
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@ -30,8 +30,9 @@ import (
)
const (
linuxOS = "linux"
windowsOS = "windows"
LinuxOS = "linux"
WindowsOS = "windows"
Iterations = 5
)
var (
@ -48,35 +49,67 @@ var _ = SIGDescribe("Hybrid cluster network", func() {
Context("for all supported CNIs", func() {
It("should have stable external networking for linux and windows pods", func() {
It("should have stable networking for linux and windows pods", func() {
By("creating linux and windows pods")
linuxPod := CreateTestPod(f, linuxBusyBoxImage, LinuxOS)
windowsPod := CreateTestPod(f, windowsBusyBoximage, WindowsOS)
By("creating a linux pod with external requests")
linuxPod := CreateTestPod(f, linuxBusyBoxImage, linuxOS)
cmd := []string{"/bin/sh", "-c", "nc -vz 8.8.8.8 53", "||", "nc -vz 8.8.4.4 53"}
checkExternal(f, linuxPod, linuxOS, cmd)
By("checking connectivity to 8.8.8.8 53 (google.com) from linux")
CheckLinuxConnectivity(f, linuxPod.ObjectMeta.Name, "8.8.8.8", "53")
By("checkin connectivity to www.google.com from windows")
CheckWindowsConnectivity(f, windowsPod.ObjectMeta.Name, "www.google.com")
By("checking connectivity from linux to windows")
CheckLinuxConnectivity(f, linuxPod.ObjectMeta.Name, windowsPod.Status.PodIP, "80")
By("checking connectivity from windows to linux")
CheckWindowsConnectivity(f, windowsPod.ObjectMeta.Name, linuxPod.Status.PodIP)
By("creating a windows pod with external requests")
windowsPod := CreateTestPod(f, windowsBusyBoximage, windowsOS)
cmd = []string{"powershell", "-command", "$r=invoke-webrequest www.google.com -usebasicparsing; echo $r.StatusCode"}
out, msg := checkExternal(f, windowsPod, windowsOS, cmd)
Expect(out).To(Equal("200"), msg)
})
})
})
func checkExternal(f *framework.Framework, podName string, os string, cmd []string]) (string, string) {
By(fmt.Sprintf("checking external connectivity of %s-container in %s pod", os, podName))
out, stderr, err := f.ExecCommandInContainerWithFullOutput(podName, os + "-container", cmd...)
func CheckContainerOutput(f *framework.Framework, podName string, os string, cmd []string) (string, string, error) {
By(fmt.Sprintf("checking connectivity of %s-container in %s", os, podName))
out, stderr, err := f.ExecCommandInContainerWithFullOutput(podName, os+"-container", cmd...)
msg := fmt.Sprintf("cmd: %v, stdout: %q, stderr: %q", cmd, out, stderr)
Expect(err).NotTo(HaveOccurred(), msg)
return out, msg
return out, msg, err
}
func CreateTestPod(f *framework.Framework, image string, os string) string {
ns := f.Namespace.Name
cs := f.ClientSet
func CheckLinuxConnectivity(f *framework.Framework, podName string, address string, port string) {
successes := 0
for i := 0; i < Iterations; i++ {
nc := fmt.Sprintf("nc -vz %s %s", address, port)
cmd := []string{"/bin/sh", "-c", nc}
_, _, err := CheckContainerOutput(f, podName, LinuxOS, cmd)
if err != nil {
break
}
successes++
}
Expect(successes).To(Equal(Iterations))
}
func CheckWindowsConnectivity(f *framework.Framework, podName string, address string) {
successes := 0
for i := 0; i < Iterations; i++ {
ps := fmt.Sprintf("$r=invoke-webrequest %s -usebasicparsing; echo $r.StatusCode", address)
cmd := []string{"powershell", "-command", ps}
out, msg, err := CheckContainerOutput(f, podName, WindowsOS, cmd)
if err != nil || out != "200" {
framework.Logf(msg)
break
}
successes++
}
Expect(successes).To(Equal(Iterations))
}
func CreateTestPod(f *framework.Framework, image string, os string) *v1.Pod {
containerName := fmt.Sprintf("%s-container", os)
podName := "pod-" + string(uuid.NewUUID())
pod := &v1.Pod{
TypeMeta: metav1.TypeMeta{
@ -89,8 +122,9 @@ func CreateTestPod(f *framework.Framework, image string, os string) string {
Spec: v1.PodSpec{
Containers: []v1.Container{
{
Name: os + "-container",
Name: containerName,
Image: image,
Ports: []v1.ContainerPort{{ContainerPort: 80}},
},
},
NodeSelector: map[string]string{
@ -98,7 +132,7 @@ func CreateTestPod(f *framework.Framework, image string, os string) string {
},
},
}
if os == linuxOS {
if os == LinuxOS {
pod.Spec.Tolerations = []v1.Toleration{
{
Key: "key",
@ -107,8 +141,5 @@ func CreateTestPod(f *framework.Framework, image string, os string) string {
},
}
}
_, err := cs.CoreV1().Pods(ns).Create(pod)
framework.ExpectNoError(err)
framework.ExpectNoError(f.WaitForPodRunning(podName))
return podName
return f.PodClient().CreateSync(pod)
}