338 lines
11 KiB
Go
338 lines
11 KiB
Go
/*
|
|
Copyright 2023 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 e2enode
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/onsi/ginkgo/v2"
|
|
"github.com/onsi/gomega"
|
|
|
|
v1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/api/resource"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/util/sets"
|
|
"k8s.io/apimachinery/pkg/util/uuid"
|
|
kubefeatures "k8s.io/kubernetes/pkg/features"
|
|
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
|
e2enetwork "k8s.io/kubernetes/test/e2e/framework/network"
|
|
e2enode "k8s.io/kubernetes/test/e2e/framework/node"
|
|
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
|
|
e2epodoutput "k8s.io/kubernetes/test/e2e/framework/pod/output"
|
|
"k8s.io/kubernetes/test/e2e/network/common"
|
|
imageutils "k8s.io/kubernetes/test/utils/image"
|
|
netutils "k8s.io/utils/net"
|
|
"k8s.io/utils/ptr"
|
|
)
|
|
|
|
var _ = common.SIGDescribe("DualStack Host IP [NodeFeature:PodHostIPs] [Feature:PodHostIPs]", func() {
|
|
f := framework.NewDefaultFramework("dualstack")
|
|
|
|
ginkgo.Context("when creating a Pod, it has no PodHostIPs feature", func() {
|
|
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
initialConfig.FeatureGates = map[string]bool{
|
|
string(kubefeatures.PodHostIPs): false,
|
|
}
|
|
})
|
|
ginkgo.It("should create pod, add host ips is empty", func(ctx context.Context) {
|
|
|
|
podName := "pod-dualstack-host-ips"
|
|
|
|
pod := genPodHostIPs(podName+string(uuid.NewUUID()), false)
|
|
ginkgo.By("submitting the pod to kubernetes")
|
|
podClient := e2epod.NewPodClient(f)
|
|
p := podClient.CreateSync(ctx, pod)
|
|
|
|
gomega.Expect(p.Status.HostIP).ShouldNot(gomega.BeEquivalentTo(""))
|
|
gomega.Expect(p.Status.HostIPs).Should(gomega.BeNil())
|
|
|
|
ginkgo.By("deleting the pod")
|
|
err := podClient.Delete(ctx, pod.Name, *metav1.NewDeleteOptions(1))
|
|
framework.ExpectNoError(err, "failed to delete pod")
|
|
})
|
|
|
|
ginkgo.It("should create pod with hostNetwork, add host ips is empty", func(ctx context.Context) {
|
|
|
|
podName := "pod-dualstack-host-ips"
|
|
|
|
pod := genPodHostIPs(podName+string(uuid.NewUUID()), true)
|
|
ginkgo.By("submitting the pod to kubernetes")
|
|
podClient := e2epod.NewPodClient(f)
|
|
p := podClient.CreateSync(ctx, pod)
|
|
|
|
gomega.Expect(p.Status.HostIP).ShouldNot(gomega.BeEquivalentTo(""))
|
|
gomega.Expect(p.Status.HostIPs).Should(gomega.BeNil())
|
|
|
|
ginkgo.By("deleting the pod")
|
|
err := podClient.Delete(ctx, pod.Name, *metav1.NewDeleteOptions(1))
|
|
framework.ExpectNoError(err, "failed to delete pod")
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("when creating a Pod, it has PodHostIPs feature", func() {
|
|
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
initialConfig.FeatureGates = map[string]bool{
|
|
string(kubefeatures.PodHostIPs): true,
|
|
}
|
|
})
|
|
ginkgo.It("should create pod, add ipv6 and ipv4 ip to host ips", func(ctx context.Context) {
|
|
|
|
podName := "pod-dualstack-host-ips"
|
|
|
|
pod := genPodHostIPs(podName+string(uuid.NewUUID()), false)
|
|
|
|
ginkgo.By("submitting the pod to kubernetes")
|
|
podClient := e2epod.NewPodClient(f)
|
|
p := podClient.CreateSync(ctx, pod)
|
|
|
|
gomega.Expect(p.Status.HostIP).ShouldNot(gomega.BeEquivalentTo(""))
|
|
gomega.Expect(p.Status.HostIPs).ShouldNot(gomega.BeNil())
|
|
|
|
// validate first ip in HostIPs is same as HostIP
|
|
gomega.Expect(p.Status.HostIP).Should(gomega.Equal(p.Status.HostIPs[0].IP))
|
|
if len(p.Status.HostIPs) > 1 {
|
|
// assert 2 host ips belong to different families
|
|
if netutils.IsIPv4String(p.Status.HostIPs[0].IP) == netutils.IsIPv4String(p.Status.HostIPs[1].IP) {
|
|
framework.Failf("both internalIPs %s and %s belong to the same families", p.Status.HostIPs[0].IP, p.Status.HostIPs[1].IP)
|
|
}
|
|
}
|
|
|
|
nodeList, err := e2enode.GetReadySchedulableNodes(ctx, f.ClientSet)
|
|
framework.ExpectNoError(err)
|
|
for _, node := range nodeList.Items {
|
|
if node.Name == p.Spec.NodeName {
|
|
got := sets.New[string]()
|
|
for _, hostIP := range p.Status.HostIPs {
|
|
got.Insert(hostIP.IP)
|
|
}
|
|
|
|
want := sets.New[string]()
|
|
for _, address := range node.Status.Addresses {
|
|
if address.Type == v1.NodeInternalIP {
|
|
want.Insert(address.Address)
|
|
}
|
|
}
|
|
if !got.Equal(want) {
|
|
framework.Failf("got %v, want %v", got, want)
|
|
}
|
|
break
|
|
}
|
|
}
|
|
|
|
ginkgo.By("deleting the pod")
|
|
err = podClient.Delete(ctx, pod.Name, *metav1.NewDeleteOptions(1))
|
|
framework.ExpectNoError(err, "failed to delete pod")
|
|
})
|
|
|
|
ginkgo.It("should create pod with hostNetwork, add ipv6 and ipv4 ip to host ips", func(ctx context.Context) {
|
|
|
|
podName := "pod-dualstack-host-ips"
|
|
|
|
pod := genPodHostIPs(podName+string(uuid.NewUUID()), true)
|
|
|
|
ginkgo.By("submitting the pod to kubernetes")
|
|
podClient := e2epod.NewPodClient(f)
|
|
p := podClient.CreateSync(ctx, pod)
|
|
|
|
gomega.Expect(p.Status.HostIP).ShouldNot(gomega.BeEquivalentTo(""))
|
|
gomega.Expect(p.Status.HostIPs).ShouldNot(gomega.BeNil())
|
|
|
|
// validate first ip in HostIPs is same as HostIP
|
|
gomega.Expect(p.Status.HostIP).Should(gomega.Equal(p.Status.HostIPs[0].IP))
|
|
if len(p.Status.HostIPs) > 1 {
|
|
// assert 2 host ips belong to different families
|
|
if netutils.IsIPv4String(p.Status.HostIPs[0].IP) == netutils.IsIPv4String(p.Status.HostIPs[1].IP) {
|
|
framework.Failf("both internalIPs %s and %s belong to the same families", p.Status.HostIPs[0].IP, p.Status.HostIPs[1].IP)
|
|
}
|
|
}
|
|
|
|
nodeList, err := e2enode.GetReadySchedulableNodes(ctx, f.ClientSet)
|
|
framework.ExpectNoError(err)
|
|
for _, node := range nodeList.Items {
|
|
if node.Name == p.Spec.NodeName {
|
|
got := sets.New[string]()
|
|
for _, hostIP := range p.Status.HostIPs {
|
|
got.Insert(hostIP.IP)
|
|
}
|
|
|
|
want := sets.New[string]()
|
|
for _, address := range node.Status.Addresses {
|
|
if address.Type == v1.NodeInternalIP {
|
|
want.Insert(address.Address)
|
|
}
|
|
}
|
|
if !got.Equal(want) {
|
|
framework.Failf("got %v, want %v", got, want)
|
|
}
|
|
break
|
|
}
|
|
}
|
|
|
|
ginkgo.By("deleting the pod")
|
|
err = podClient.Delete(ctx, pod.Name, *metav1.NewDeleteOptions(1))
|
|
framework.ExpectNoError(err, "failed to delete pod")
|
|
})
|
|
|
|
ginkgo.It("should provide hostIPs as an env var", func(ctx context.Context) {
|
|
podName := "downward-api-" + string(uuid.NewUUID())
|
|
env := []v1.EnvVar{
|
|
{
|
|
Name: "HOST_IPS",
|
|
ValueFrom: &v1.EnvVarSource{
|
|
FieldRef: &v1.ObjectFieldSelector{
|
|
APIVersion: "v1",
|
|
FieldPath: "status.hostIPs",
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
expectations := []string{
|
|
fmt.Sprintf("HOST_IPS=%v|%v", e2enetwork.RegexIPv4, e2enetwork.RegexIPv6),
|
|
}
|
|
|
|
testDownwardAPI(ctx, f, podName, env, expectations)
|
|
})
|
|
|
|
ginkgo.It("should able upgrade and rollback", func(ctx context.Context) {
|
|
podName := "pod-dualstack-host-ips"
|
|
|
|
pod := genPodHostIPs(podName+string(uuid.NewUUID()), false)
|
|
|
|
ginkgo.By("submitting the pod to kubernetes")
|
|
podClient := e2epod.NewPodClient(f)
|
|
p := podClient.CreateSync(ctx, pod)
|
|
|
|
gomega.Expect(p.Status.HostIPs).ShouldNot(gomega.BeNil())
|
|
|
|
ginkgo.By("Disable PodHostIPs feature")
|
|
cfg, err := getCurrentKubeletConfig(ctx)
|
|
framework.ExpectNoError(err)
|
|
|
|
newCfg := cfg.DeepCopy()
|
|
newCfg.FeatureGates = map[string]bool{
|
|
string(kubefeatures.PodHostIPs): false,
|
|
}
|
|
|
|
updateKubeletConfig(ctx, f, newCfg, true)
|
|
|
|
gomega.Expect(p.Status.HostIPs).ShouldNot(gomega.BeNil())
|
|
|
|
ginkgo.By("deleting the pod")
|
|
err = podClient.Delete(ctx, pod.Name, *metav1.NewDeleteOptions(1))
|
|
framework.ExpectNoError(err, "failed to delete pod")
|
|
|
|
ginkgo.By("recreate pod")
|
|
pod = genPodHostIPs(podName+string(uuid.NewUUID()), false)
|
|
p = podClient.CreateSync(ctx, pod)
|
|
// Feature PodHostIPs is disabled, HostIPs should be nil
|
|
gomega.Expect(p.Status.HostIPs).Should(gomega.BeNil())
|
|
|
|
newCfg.FeatureGates = map[string]bool{
|
|
string(kubefeatures.PodHostIPs): true,
|
|
}
|
|
|
|
updateKubeletConfig(ctx, f, newCfg, true)
|
|
|
|
p, err = podClient.Get(ctx, pod.Name, metav1.GetOptions{})
|
|
framework.ExpectNoError(err)
|
|
// Feature PodHostIPs is enabled, HostIPs should not be nil
|
|
gomega.Expect(p.Status.HostIPs).ShouldNot(gomega.BeNil())
|
|
|
|
ginkgo.By("deleting the pod")
|
|
err = podClient.Delete(ctx, pod.Name, *metav1.NewDeleteOptions(1))
|
|
framework.ExpectNoError(err, "failed to delete pod")
|
|
})
|
|
|
|
})
|
|
})
|
|
|
|
func genPodHostIPs(podName string, hostNetwork bool) *v1.Pod {
|
|
return &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: podName,
|
|
Labels: map[string]string{"test": "dualstack-host-ips"},
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: "test-container",
|
|
Image: imageutils.GetE2EImage(imageutils.Agnhost),
|
|
SecurityContext: &v1.SecurityContext{
|
|
AllowPrivilegeEscalation: ptr.To(false),
|
|
Capabilities: &v1.Capabilities{
|
|
Drop: []v1.Capability{"ALL"},
|
|
},
|
|
RunAsNonRoot: ptr.To(true),
|
|
RunAsUser: ptr.To[int64](1000),
|
|
SeccompProfile: &v1.SeccompProfile{
|
|
Type: v1.SeccompProfileTypeRuntimeDefault,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
HostNetwork: hostNetwork,
|
|
},
|
|
}
|
|
}
|
|
|
|
func testDownwardAPI(ctx context.Context, f *framework.Framework, podName string, env []v1.EnvVar, expectations []string) {
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: podName,
|
|
Labels: map[string]string{"name": podName},
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: "dapi-container",
|
|
Image: imageutils.GetE2EImage(imageutils.BusyBox),
|
|
Command: []string{"sh", "-c", "env"},
|
|
Resources: v1.ResourceRequirements{
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceCPU: resource.MustParse("250m"),
|
|
v1.ResourceMemory: resource.MustParse("32Mi"),
|
|
},
|
|
Limits: v1.ResourceList{
|
|
v1.ResourceCPU: resource.MustParse("1250m"),
|
|
v1.ResourceMemory: resource.MustParse("64Mi"),
|
|
},
|
|
},
|
|
Env: env,
|
|
SecurityContext: &v1.SecurityContext{
|
|
AllowPrivilegeEscalation: ptr.To(false),
|
|
Capabilities: &v1.Capabilities{
|
|
Drop: []v1.Capability{"ALL"},
|
|
},
|
|
RunAsNonRoot: ptr.To(true),
|
|
RunAsUser: ptr.To[int64](1000),
|
|
SeccompProfile: &v1.SeccompProfile{
|
|
Type: v1.SeccompProfileTypeRuntimeDefault,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
RestartPolicy: v1.RestartPolicyNever,
|
|
},
|
|
}
|
|
|
|
e2epodoutput.TestContainerOutputRegexp(ctx, f, "downward api env vars", pod, 0, expectations)
|
|
}
|