mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-23 03:41:45 +00:00
e2e_node: add a test to verify kubelet fails to create pod if userns isn't supported
and the pod requests a user namespace Signed-off-by: Peter Hunt <pehunt@redhat.com>
This commit is contained in:
parent
aa35eff1b6
commit
8b4aab5451
89
test/e2e_node/user_namespaces_test.go
Normal file
89
test/e2e_node/user_namespaces_test.go
Normal file
@ -0,0 +1,89 @@
|
||||
//go:build linux
|
||||
// +build linux
|
||||
|
||||
/*
|
||||
Copyright 2024 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"
|
||||
"time"
|
||||
|
||||
"github.com/onsi/gomega"
|
||||
v1 "k8s.io/api/core/v1"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
kubefeatures "k8s.io/kubernetes/pkg/features"
|
||||
kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
|
||||
"k8s.io/kubernetes/test/e2e/feature"
|
||||
"k8s.io/kubernetes/test/e2e/framework"
|
||||
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
|
||||
e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
|
||||
imageutils "k8s.io/kubernetes/test/utils/image"
|
||||
admissionapi "k8s.io/pod-security-admission/api"
|
||||
)
|
||||
|
||||
var _ = SIGDescribe("UserNamespaces", "[LinuxOnly]", feature.UserNamespacesSupport, framework.WithSerial(), func() {
|
||||
f := framework.NewDefaultFramework("user-namespace-off-test")
|
||||
f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged
|
||||
f.Context("when UserNamespacesSupport=false in the kubelet", func() {
|
||||
// Turn off UserNamespacesSupport for this test
|
||||
// TODO: once the UserNamespacesSupport feature is removed, this test should be removed too
|
||||
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
||||
if initialConfig.FeatureGates == nil {
|
||||
initialConfig.FeatureGates = make(map[string]bool)
|
||||
}
|
||||
initialConfig.FeatureGates[string(kubefeatures.UserNamespacesSupport)] = false
|
||||
})
|
||||
f.It("will fail to create a hostUsers=false pod", func(ctx context.Context) {
|
||||
if on, ok := serviceFeatureGates[string(kubefeatures.UserNamespacesSupport)]; !ok || !on {
|
||||
e2eskipper.Skipf("services do not have user namespaces on")
|
||||
}
|
||||
falseVar := false
|
||||
podClient := e2epod.NewPodClient(f)
|
||||
pod, err := podClient.PodInterface.Create(ctx, &v1.Pod{
|
||||
ObjectMeta: metav1.ObjectMeta{Name: "userns-pod"},
|
||||
Spec: v1.PodSpec{
|
||||
Containers: []v1.Container{
|
||||
{
|
||||
Name: "test-container-1",
|
||||
Image: imageutils.GetE2EImage(imageutils.BusyBox),
|
||||
Command: []string{"/bin/sleep"},
|
||||
Args: []string{"10000"},
|
||||
},
|
||||
},
|
||||
HostUsers: &falseVar,
|
||||
},
|
||||
}, metav1.CreateOptions{})
|
||||
framework.ExpectNoError(err)
|
||||
|
||||
// Pod should stay in pending
|
||||
// Events would be a better way to tell this, as we could actually read the event,
|
||||
// but history proves events aren't reliable enough to base a test on.
|
||||
gomega.Consistently(ctx, func() error {
|
||||
p, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Get(ctx, pod.Name, metav1.GetOptions{})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if p.Status.Phase != v1.PodPending {
|
||||
return fmt.Errorf("Pod phase isn't pending")
|
||||
}
|
||||
return nil
|
||||
}, 30*time.Second, 5*time.Second).ShouldNot(gomega.HaveOccurred())
|
||||
})
|
||||
})
|
||||
})
|
Loading…
Reference in New Issue
Block a user