mirror of https://github.com/k3s-io/k3s
133 lines
3.7 KiB
Go
133 lines
3.7 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package windows
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/util/uuid"
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
|
imageutils "k8s.io/kubernetes/test/utils/image"
|
|
|
|
. "github.com/onsi/ginkgo"
|
|
. "github.com/onsi/gomega"
|
|
)
|
|
|
|
const (
|
|
linuxOS = "linux"
|
|
windowsOS = "windows"
|
|
)
|
|
|
|
var (
|
|
windowsBusyBoximage = imageutils.GetE2EImage(imageutils.TestWebserver)
|
|
linuxBusyBoxImage = "docker.io/library/nginx:1.15-alpine"
|
|
)
|
|
|
|
var _ = SIGDescribe("Hybrid cluster network", func() {
|
|
f := framework.NewDefaultFramework("hybrid-network")
|
|
|
|
BeforeEach(func() {
|
|
framework.SkipUnlessNodeOSDistroIs("windows")
|
|
})
|
|
|
|
Context("for all supported CNIs", 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("checking connectivity to 8.8.8.8 53 (google.com) from Linux")
|
|
assertConsistentConnectivity(f, linuxPod.ObjectMeta.Name, linuxOS, linuxCheck("8.8.8.8", 53))
|
|
|
|
By("checking connectivity to www.google.com from Windows")
|
|
assertConsistentConnectivity(f, windowsPod.ObjectMeta.Name, windowsOS, windowsCheck("www.google.com"))
|
|
|
|
By("checking connectivity from Linux to Windows")
|
|
assertConsistentConnectivity(f, linuxPod.ObjectMeta.Name, linuxOS, linuxCheck(windowsPod.Status.PodIP, 80))
|
|
|
|
By("checking connectivity from Windows to Linux")
|
|
assertConsistentConnectivity(f, windowsPod.ObjectMeta.Name, windowsOS, windowsCheck(linuxPod.Status.PodIP))
|
|
|
|
})
|
|
|
|
})
|
|
})
|
|
|
|
var (
|
|
duration = "10s"
|
|
pollInterval = "1s"
|
|
timeout = 10 // seconds
|
|
)
|
|
|
|
func assertConsistentConnectivity(f *framework.Framework, podName string, os string, cmd []string) {
|
|
Consistently(func() error {
|
|
By(fmt.Sprintf("checking connectivity of %s-container in %s", os, podName))
|
|
_, _, err := f.ExecCommandInContainerWithFullOutput(podName, os+"-container", cmd...)
|
|
return err
|
|
}, duration, pollInterval).ShouldNot(HaveOccurred())
|
|
}
|
|
|
|
func linuxCheck(address string, port int) []string {
|
|
nc := fmt.Sprintf("nc -vz %s %v -w %v", address, port, timeout)
|
|
cmd := []string{"/bin/sh", "-c", nc}
|
|
return cmd
|
|
}
|
|
|
|
func windowsCheck(address string) []string {
|
|
curl := fmt.Sprintf("curl.exe %s --connect-timeout %v --fail", address, timeout)
|
|
cmd := []string{"cmd", "/c", curl}
|
|
return cmd
|
|
}
|
|
|
|
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{
|
|
Kind: "Pod",
|
|
APIVersion: "v1",
|
|
},
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: podName,
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: containerName,
|
|
Image: image,
|
|
Ports: []v1.ContainerPort{{ContainerPort: 80}},
|
|
},
|
|
},
|
|
NodeSelector: map[string]string{
|
|
"beta.kubernetes.io/os": os,
|
|
},
|
|
},
|
|
}
|
|
if os == linuxOS {
|
|
pod.Spec.Tolerations = []v1.Toleration{
|
|
{
|
|
Operator: v1.TolerationOpExists,
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
}
|
|
}
|
|
return f.PodClient().CreateSync(pod)
|
|
}
|