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Add test for sysctl support slash as separator

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This commit is contained in:
Mengjiao Liu 2021-12-07 17:40:05 +08:00
parent 20bb84b3f1
commit 5fca1112e1
1 changed files with 52 additions and 0 deletions
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52
test/e2e/common/node/sysctl.go
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@ -175,4 +175,56 @@ var _ = SIGDescribe("Sysctls [LinuxOnly] [NodeConformance]", func() {
err := e2epod.WaitForPodFailedReason(f.ClientSet, pod, "SysctlForbidden", f.Timeouts.PodStart)
framework.ExpectNoError(err)
})
/*
Release: v1.23
Testname: Sysctl, test sysctls supports slashes
Description: Pod is created with kernel/shm_rmid_forced sysctl. Support slashes as sysctl separator. The '/' separator is also accepted in place of a '.'
[LinuxOnly]: This test is marked as LinuxOnly since Windows does not support sysctls
*/
ginkgo.It("should support sysctls with slashes as separator [MinimumKubeletVersion:1.23]", func() {
pod := testPod()
pod.Spec.SecurityContext = &v1.PodSecurityContext{
Sysctls: []v1.Sysctl{
{
Name: "kernel/shm_rmid_forced",
Value: "1",
},
},
}
pod.Spec.Containers[0].Command = []string{"/bin/sysctl", "kernel/shm_rmid_forced"}
ginkgo.By("Creating a pod with the kernel/shm_rmid_forced sysctl")
pod = podClient.Create(pod)
ginkgo.By("Watching for error events or started pod")
// watch for events instead of termination of pod because the kubelet deletes
// failed pods without running containers. This would create a race as the pod
// might have already been deleted here.
ev, err := f.PodClient().WaitForErrorEventOrSuccess(pod)
framework.ExpectNoError(err)
gomega.Expect(ev).To(gomega.BeNil())
ginkgo.By("Waiting for pod completion")
err = e2epod.WaitForPodNoLongerRunningInNamespace(f.ClientSet, pod.Name, f.Namespace.Name)
framework.ExpectNoError(err)
pod, err = podClient.Get(context.TODO(), pod.Name, metav1.GetOptions{})
framework.ExpectNoError(err)
ginkgo.By("Checking that the pod succeeded")
framework.ExpectEqual(pod.Status.Phase, v1.PodSucceeded)
ginkgo.By("Getting logs from the pod")
log, err := e2epod.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, pod.Spec.Containers[0].Name)
framework.ExpectNoError(err)
ginkgo.By("Checking that the sysctl is actually updated")
// Note that either "/" or "." may be used as separators within sysctl variable names.
// "kernel.shm_rmid_forced=1" and "kernel/shm_rmid_forced=1" are equivalent.
// Run "/bin/sysctl kernel/shm_rmid_forced" command on Linux system
// The displayed result is "kernel.shm_rmid_forced=1"
// Therefore, the substring that needs to be checked for the obtained pod log is
// "kernel.shm_rmid_forced=1" instead of "kernel/shm_rmid_forced=1".
gomega.Expect(log).To(gomega.ContainSubstring("kernel.shm_rmid_forced = 1"))
})
})