015f2998e5
This PR fixes a few things for e2e storage suite to run on Windows cluster. 1. increaes timeout due to longer pod startup time for windows 2. Only set SELinuxOptions or fsGroup if os is not windows 3. Add VolumeSnapshot delete policy for windows3. Add VolumeSnapshot delete policy for windows3. Add VolumeSnapshot delete policy for windows
250 lines
8.9 KiB
Go
250 lines
8.9 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package pod
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import (
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"context"
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"fmt"
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"runtime"
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"time"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/uuid"
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clientset "k8s.io/client-go/kubernetes"
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imageutils "k8s.io/kubernetes/test/utils/image"
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)
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var (
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// BusyBoxImage is the image URI of BusyBox.
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BusyBoxImage = imageutils.GetE2EImage(imageutils.BusyBox)
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)
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// Config is a struct containing all arguments for creating a pod.
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// SELinux testing requires to pass HostIPC and HostPID as boolean arguments.
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type Config struct {
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NS string
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PVCs []*v1.PersistentVolumeClaim
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PVCsReadOnly bool
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InlineVolumeSources []*v1.VolumeSource
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IsPrivileged bool
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Command string
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HostIPC bool
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HostPID bool
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SeLinuxLabel *v1.SELinuxOptions
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FsGroup *int64
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NodeSelection NodeSelection
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}
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// CreateUnschedulablePod with given claims based on node selector
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func CreateUnschedulablePod(client clientset.Interface, namespace string, nodeSelector map[string]string, pvclaims []*v1.PersistentVolumeClaim, isPrivileged bool, command string) (*v1.Pod, error) {
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pod := MakePod(namespace, nodeSelector, pvclaims, isPrivileged, command)
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pod, err := client.CoreV1().Pods(namespace).Create(context.TODO(), pod, metav1.CreateOptions{})
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if err != nil {
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return nil, fmt.Errorf("pod Create API error: %v", err)
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}
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// Waiting for pod to become Unschedulable
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err = WaitForPodNameUnschedulableInNamespace(client, pod.Name, namespace)
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if err != nil {
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return pod, fmt.Errorf("pod %q is not Unschedulable: %v", pod.Name, err)
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}
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// get fresh pod info
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pod, err = client.CoreV1().Pods(namespace).Get(context.TODO(), pod.Name, metav1.GetOptions{})
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if err != nil {
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return pod, fmt.Errorf("pod Get API error: %v", err)
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}
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return pod, nil
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}
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// CreateClientPod defines and creates a pod with a mounted PV. Pod runs infinite loop until killed.
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func CreateClientPod(c clientset.Interface, ns string, pvc *v1.PersistentVolumeClaim) (*v1.Pod, error) {
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return CreatePod(c, ns, nil, []*v1.PersistentVolumeClaim{pvc}, true, "")
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}
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// CreatePod with given claims based on node selector
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func CreatePod(client clientset.Interface, namespace string, nodeSelector map[string]string, pvclaims []*v1.PersistentVolumeClaim, isPrivileged bool, command string) (*v1.Pod, error) {
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pod := MakePod(namespace, nodeSelector, pvclaims, isPrivileged, command)
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pod, err := client.CoreV1().Pods(namespace).Create(context.TODO(), pod, metav1.CreateOptions{})
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if err != nil {
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return nil, fmt.Errorf("pod Create API error: %v", err)
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}
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// Waiting for pod to be running
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err = WaitForPodNameRunningInNamespace(client, pod.Name, namespace)
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if err != nil {
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return pod, fmt.Errorf("pod %q is not Running: %v", pod.Name, err)
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}
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// get fresh pod info
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pod, err = client.CoreV1().Pods(namespace).Get(context.TODO(), pod.Name, metav1.GetOptions{})
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if err != nil {
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return pod, fmt.Errorf("pod Get API error: %v", err)
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}
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return pod, nil
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}
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// CreateSecPod creates security pod with given claims
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func CreateSecPod(client clientset.Interface, podConfig *Config, timeout time.Duration) (*v1.Pod, error) {
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return CreateSecPodWithNodeSelection(client, podConfig, timeout)
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}
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// CreateSecPodWithNodeSelection creates security pod with given claims
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func CreateSecPodWithNodeSelection(client clientset.Interface, podConfig *Config, timeout time.Duration) (*v1.Pod, error) {
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pod, err := MakeSecPod(podConfig)
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if err != nil {
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return nil, fmt.Errorf("Unable to create pod: %v", err)
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}
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pod, err = client.CoreV1().Pods(podConfig.NS).Create(context.TODO(), pod, metav1.CreateOptions{})
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if err != nil {
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return nil, fmt.Errorf("pod Create API error: %v", err)
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}
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// Waiting for pod to be running
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err = WaitTimeoutForPodRunningInNamespace(client, pod.Name, podConfig.NS, timeout)
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if err != nil {
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return pod, fmt.Errorf("pod %q is not Running: %v", pod.Name, err)
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}
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// get fresh pod info
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pod, err = client.CoreV1().Pods(podConfig.NS).Get(context.TODO(), pod.Name, metav1.GetOptions{})
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if err != nil {
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return pod, fmt.Errorf("pod Get API error: %v", err)
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}
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return pod, nil
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}
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// MakePod returns a pod definition based on the namespace. The pod references the PVC's
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// name. A slice of BASH commands can be supplied as args to be run by the pod
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func MakePod(ns string, nodeSelector map[string]string, pvclaims []*v1.PersistentVolumeClaim, isPrivileged bool, command string) *v1.Pod {
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if len(command) == 0 {
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command = "trap exit TERM; while true; do sleep 1; done"
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}
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podSpec := &v1.Pod{
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TypeMeta: metav1.TypeMeta{
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Kind: "Pod",
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APIVersion: "v1",
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},
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ObjectMeta: metav1.ObjectMeta{
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GenerateName: "pvc-tester-",
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Namespace: ns,
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "write-pod",
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Image: BusyBoxImage,
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Command: []string{"/bin/sh"},
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Args: []string{"-c", command},
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SecurityContext: &v1.SecurityContext{
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Privileged: &isPrivileged,
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},
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},
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},
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RestartPolicy: v1.RestartPolicyOnFailure,
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},
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}
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var volumeMounts = make([]v1.VolumeMount, len(pvclaims))
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var volumes = make([]v1.Volume, len(pvclaims))
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for index, pvclaim := range pvclaims {
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volumename := fmt.Sprintf("volume%v", index+1)
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volumeMounts[index] = v1.VolumeMount{Name: volumename, MountPath: "/mnt/" + volumename}
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volumes[index] = v1.Volume{Name: volumename, VolumeSource: v1.VolumeSource{PersistentVolumeClaim: &v1.PersistentVolumeClaimVolumeSource{ClaimName: pvclaim.Name, ReadOnly: false}}}
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}
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podSpec.Spec.Containers[0].VolumeMounts = volumeMounts
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podSpec.Spec.Volumes = volumes
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if nodeSelector != nil {
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podSpec.Spec.NodeSelector = nodeSelector
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}
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return podSpec
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}
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// MakeSecPod returns a pod definition based on the namespace. The pod references the PVC's
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// name. A slice of BASH commands can be supplied as args to be run by the pod.
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func MakeSecPod(podConfig *Config) (*v1.Pod, error) {
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if podConfig.NS == "" {
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return nil, fmt.Errorf("Cannot create pod with empty namespace")
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}
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if len(podConfig.Command) == 0 {
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podConfig.Command = "trap exit TERM; while true; do sleep 1; done"
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}
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podName := "pod-" + string(uuid.NewUUID())
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if podConfig.FsGroup == nil && runtime.GOOS != "windows" {
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podConfig.FsGroup = func(i int64) *int64 {
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return &i
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}(1000)
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}
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podSpec := &v1.Pod{
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TypeMeta: metav1.TypeMeta{
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Kind: "Pod",
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APIVersion: "v1",
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},
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ObjectMeta: metav1.ObjectMeta{
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Name: podName,
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Namespace: podConfig.NS,
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},
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Spec: v1.PodSpec{
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HostIPC: podConfig.HostIPC,
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HostPID: podConfig.HostPID,
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SecurityContext: &v1.PodSecurityContext{
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FSGroup: podConfig.FsGroup,
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},
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Containers: []v1.Container{
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{
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Name: "write-pod",
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Image: imageutils.GetE2EImage(imageutils.BusyBox),
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Command: []string{"/bin/sh"},
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Args: []string{"-c", podConfig.Command},
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SecurityContext: &v1.SecurityContext{
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Privileged: &podConfig.IsPrivileged,
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},
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},
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},
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RestartPolicy: v1.RestartPolicyOnFailure,
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},
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}
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var volumeMounts = make([]v1.VolumeMount, 0)
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var volumeDevices = make([]v1.VolumeDevice, 0)
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var volumes = make([]v1.Volume, len(podConfig.PVCs)+len(podConfig.InlineVolumeSources))
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volumeIndex := 0
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for _, pvclaim := range podConfig.PVCs {
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volumename := fmt.Sprintf("volume%v", volumeIndex+1)
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if pvclaim.Spec.VolumeMode != nil && *pvclaim.Spec.VolumeMode == v1.PersistentVolumeBlock {
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volumeDevices = append(volumeDevices, v1.VolumeDevice{Name: volumename, DevicePath: "/mnt/" + volumename})
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} else {
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volumeMounts = append(volumeMounts, v1.VolumeMount{Name: volumename, MountPath: "/mnt/" + volumename})
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}
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volumes[volumeIndex] = v1.Volume{Name: volumename, VolumeSource: v1.VolumeSource{PersistentVolumeClaim: &v1.PersistentVolumeClaimVolumeSource{ClaimName: pvclaim.Name, ReadOnly: podConfig.PVCsReadOnly}}}
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volumeIndex++
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}
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for _, src := range podConfig.InlineVolumeSources {
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volumename := fmt.Sprintf("volume%v", volumeIndex+1)
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// In-line volumes can be only filesystem, not block.
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volumeMounts = append(volumeMounts, v1.VolumeMount{Name: volumename, MountPath: "/mnt/" + volumename})
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volumes[volumeIndex] = v1.Volume{Name: volumename, VolumeSource: *src}
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volumeIndex++
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}
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podSpec.Spec.Containers[0].VolumeMounts = volumeMounts
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podSpec.Spec.Containers[0].VolumeDevices = volumeDevices
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podSpec.Spec.Volumes = volumes
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if runtime.GOOS != "windows" {
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podSpec.Spec.SecurityContext.SELinuxOptions = podConfig.SeLinuxLabel
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}
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SetNodeSelection(&podSpec.Spec, podConfig.NodeSelection)
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return podSpec, nil
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}
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