01c3a51a78
lock the feature gate to GA, and remove the now-redundant code. Signed-off-by: Francesco Romani <fromani@redhat.com>
1065 lines
37 KiB
Go
1065 lines
37 KiB
Go
/*
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Copyright 2020 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 e2enode
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import (
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"context"
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"errors"
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"fmt"
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"os"
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"strings"
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"time"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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kubeletdevicepluginv1beta1 "k8s.io/kubelet/pkg/apis/deviceplugin/v1beta1"
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kubeletpodresourcesv1 "k8s.io/kubelet/pkg/apis/podresources/v1"
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kubefeatures "k8s.io/kubernetes/pkg/features"
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kubeletconfig "k8s.io/kubernetes/pkg/kubelet/apis/config"
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"k8s.io/kubernetes/pkg/kubelet/apis/podresources"
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podresourcesgrpc "k8s.io/kubernetes/pkg/kubelet/apis/podresources/grpc"
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"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager"
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"k8s.io/kubernetes/pkg/kubelet/util"
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testutils "k8s.io/kubernetes/test/utils"
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admissionapi "k8s.io/pod-security-admission/api"
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"k8s.io/utils/cpuset"
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"github.com/onsi/ginkgo/v2"
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"github.com/onsi/gomega"
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"github.com/onsi/gomega/gstruct"
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"github.com/onsi/gomega/types"
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"k8s.io/kubernetes/test/e2e/framework"
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e2emetrics "k8s.io/kubernetes/test/e2e/framework/metrics"
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e2enode "k8s.io/kubernetes/test/e2e/framework/node"
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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
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)
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const (
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defaultTopologyUnawareResourceName = "example.com/resource"
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)
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type podDesc struct {
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podName string
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cntName string
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resourceName string
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resourceAmount int
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cpuRequest int // cpuRequest is in millicores
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}
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func (desc podDesc) CpuRequestQty() resource.Quantity {
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qty := resource.NewMilliQuantity(int64(desc.cpuRequest), resource.DecimalSI)
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return *qty
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}
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func (desc podDesc) CpuRequestExclusive() int {
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if (desc.cpuRequest % 1000) != 0 {
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// exclusive cpus are request only if the quantity is integral;
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// hence, explicitly rule out non-integral requests
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return 0
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}
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return desc.cpuRequest / 1000
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}
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func (desc podDesc) RequiresCPU() bool {
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return desc.cpuRequest > 0
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}
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func (desc podDesc) RequiresDevices() bool {
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return desc.resourceName != "" && desc.resourceAmount > 0
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}
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func makePodResourcesTestPod(desc podDesc) *v1.Pod {
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cnt := v1.Container{
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Name: desc.cntName,
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Image: busyboxImage,
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Resources: v1.ResourceRequirements{
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Requests: v1.ResourceList{},
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Limits: v1.ResourceList{},
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},
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Command: []string{"sh", "-c", "sleep 1d"},
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}
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if desc.RequiresCPU() {
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cpuRequestQty := desc.CpuRequestQty()
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cnt.Resources.Requests[v1.ResourceCPU] = cpuRequestQty
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cnt.Resources.Limits[v1.ResourceCPU] = cpuRequestQty
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// we don't really care, we only need to be in guaranteed QoS
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cnt.Resources.Requests[v1.ResourceMemory] = resource.MustParse("100Mi")
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cnt.Resources.Limits[v1.ResourceMemory] = resource.MustParse("100Mi")
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}
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if desc.RequiresDevices() {
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cnt.Resources.Requests[v1.ResourceName(desc.resourceName)] = resource.MustParse(fmt.Sprintf("%d", desc.resourceAmount))
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cnt.Resources.Limits[v1.ResourceName(desc.resourceName)] = resource.MustParse(fmt.Sprintf("%d", desc.resourceAmount))
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}
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return &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: desc.podName,
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},
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Spec: v1.PodSpec{
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RestartPolicy: v1.RestartPolicyNever,
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Containers: []v1.Container{
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cnt,
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},
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},
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}
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}
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func logPodResources(podIdx int, pr *kubeletpodresourcesv1.PodResources) {
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ns := pr.GetNamespace()
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cnts := pr.GetContainers()
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if len(cnts) == 0 {
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framework.Logf("#%02d/%02d/%02d - %s/%s/%s No containers", podIdx, 0, 0, ns, pr.GetName(), "_")
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return
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}
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for cntIdx, cnt := range cnts {
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if len(cnt.Devices) == 0 {
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framework.Logf("#%02d/%02d/%02d - %s/%s/%s cpus -> %v resources -> none", podIdx, cntIdx, 0, ns, pr.GetName(), cnt.Name, cnt.CpuIds)
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continue
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}
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for devIdx, dev := range cnt.Devices {
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framework.Logf("#%02d/%02d/%02d - %s/%s/%s cpus -> %v %s -> %s", podIdx, cntIdx, devIdx, ns, pr.GetName(), cnt.Name, cnt.CpuIds, dev.ResourceName, strings.Join(dev.DeviceIds, ", "))
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}
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}
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}
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type podResMap map[string]map[string]kubeletpodresourcesv1.ContainerResources
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func convertToMap(podsResources []*kubeletpodresourcesv1.PodResources) podResMap {
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res := make(map[string]map[string]kubeletpodresourcesv1.ContainerResources)
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for idx, podResource := range podsResources {
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// to make troubleshooting easier
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logPodResources(idx, podResource)
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cnts := make(map[string]kubeletpodresourcesv1.ContainerResources)
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for _, cnt := range podResource.GetContainers() {
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cnts[cnt.GetName()] = *cnt
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}
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res[podResource.GetName()] = cnts
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}
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return res
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}
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func getPodResourcesValues(ctx context.Context, cli kubeletpodresourcesv1.PodResourcesListerClient) (podResMap, error) {
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resp, err := cli.List(ctx, &kubeletpodresourcesv1.ListPodResourcesRequest{})
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if err != nil {
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return nil, err
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}
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return convertToMap(resp.GetPodResources()), nil
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}
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type testPodData struct {
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PodMap map[string]*v1.Pod
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}
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func newTestPodData() *testPodData {
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return &testPodData{
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PodMap: make(map[string]*v1.Pod),
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}
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}
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func (tpd *testPodData) createPodsForTest(ctx context.Context, f *framework.Framework, podReqs []podDesc) {
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for _, podReq := range podReqs {
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pod := makePodResourcesTestPod(podReq)
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pod = e2epod.NewPodClient(f).CreateSync(ctx, pod)
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framework.Logf("created pod %s", podReq.podName)
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tpd.PodMap[podReq.podName] = pod
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}
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}
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/* deletePodsForTest clean up all the pods run for a testcase. Must ensure proper cleanup */
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func (tpd *testPodData) deletePodsForTest(ctx context.Context, f *framework.Framework) {
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deletePodsAsync(ctx, f, tpd.PodMap)
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}
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/* deletePod removes pod during a test. Should do a best-effort clean up */
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func (tpd *testPodData) deletePod(ctx context.Context, f *framework.Framework, podName string) {
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_, ok := tpd.PodMap[podName]
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if !ok {
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return
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}
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deletePodSyncByName(ctx, f, podName)
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delete(tpd.PodMap, podName)
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}
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func findContainerDeviceByName(devs []*kubeletpodresourcesv1.ContainerDevices, resourceName string) *kubeletpodresourcesv1.ContainerDevices {
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for _, dev := range devs {
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if dev.ResourceName == resourceName {
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return dev
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}
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}
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return nil
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}
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func matchPodDescWithResources(expected []podDesc, found podResMap) error {
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for _, podReq := range expected {
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framework.Logf("matching: %#v", podReq)
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podInfo, ok := found[podReq.podName]
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if !ok {
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return fmt.Errorf("no pod resources for pod %q", podReq.podName)
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}
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cntInfo, ok := podInfo[podReq.cntName]
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if !ok {
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return fmt.Errorf("no container resources for pod %q container %q", podReq.podName, podReq.cntName)
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}
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if podReq.RequiresCPU() {
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if exclusiveCpus := podReq.CpuRequestExclusive(); exclusiveCpus != len(cntInfo.CpuIds) {
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if exclusiveCpus == 0 {
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return fmt.Errorf("pod %q container %q requested %d expected to be allocated CPUs from shared pool %v", podReq.podName, podReq.cntName, podReq.cpuRequest, cntInfo.CpuIds)
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}
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return fmt.Errorf("pod %q container %q expected %d cpus got %v", podReq.podName, podReq.cntName, exclusiveCpus, cntInfo.CpuIds)
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}
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}
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if podReq.RequiresDevices() {
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dev := findContainerDeviceByName(cntInfo.GetDevices(), podReq.resourceName)
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if dev == nil {
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return fmt.Errorf("pod %q container %q expected data for resource %q not found", podReq.podName, podReq.cntName, podReq.resourceName)
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}
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if len(dev.DeviceIds) != podReq.resourceAmount {
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return fmt.Errorf("pod %q container %q resource %q expected %d items got %v", podReq.podName, podReq.cntName, podReq.resourceName, podReq.resourceAmount, dev.DeviceIds)
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}
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} else {
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devs := cntInfo.GetDevices()
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if len(devs) > 0 {
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return fmt.Errorf("pod %q container %q expected no resources, got %v", podReq.podName, podReq.cntName, devs)
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}
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}
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if cnts, ok := found[defaultTopologyUnawareResourceName]; ok {
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for _, cnt := range cnts {
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for _, cd := range cnt.GetDevices() {
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if cd.ResourceName != defaultTopologyUnawareResourceName {
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continue
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}
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if cd.Topology != nil {
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//we expect nil topology
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return fmt.Errorf("Nil topology is expected")
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}
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}
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}
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}
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}
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return nil
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}
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func expectPodResources(ctx context.Context, offset int, cli kubeletpodresourcesv1.PodResourcesListerClient, expected []podDesc) {
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gomega.EventuallyWithOffset(1+offset, ctx, func(ctx context.Context) error {
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found, err := getPodResourcesValues(ctx, cli)
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if err != nil {
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return err
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}
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return matchPodDescWithResources(expected, found)
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}, time.Minute, 10*time.Second).Should(gomega.Succeed())
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}
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func filterOutDesc(descs []podDesc, name string) []podDesc {
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var ret []podDesc
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for _, desc := range descs {
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if desc.podName == name {
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continue
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}
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ret = append(ret, desc)
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}
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return ret
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}
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func podresourcesListTests(ctx context.Context, f *framework.Framework, cli kubeletpodresourcesv1.PodResourcesListerClient, sd *sriovData) {
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var tpd *testPodData
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var found podResMap
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var expected []podDesc
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var extra podDesc
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expectedBasePods := 0 /* nothing but pods we create */
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if sd != nil {
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expectedBasePods = 1 // sriovdp
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}
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var err error
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ginkgo.By("checking the output when no pods are present")
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found, err = getPodResourcesValues(ctx, cli)
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framework.ExpectNoError(err, "getPodResourcesValues() failed err: %v", err)
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gomega.ExpectWithOffset(1, found).To(gomega.HaveLen(expectedBasePods), "base pod expectation mismatch")
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tpd = newTestPodData()
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ginkgo.By("checking the output when only pods which don't require resources are present")
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expected = []podDesc{
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{
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podName: "pod-00",
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cntName: "cnt-00",
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},
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{
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podName: "pod-01",
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cntName: "cnt-00",
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},
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}
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tpd.createPodsForTest(ctx, f, expected)
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expectPodResources(ctx, 1, cli, expected)
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tpd.deletePodsForTest(ctx, f)
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tpd = newTestPodData()
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ginkgo.By("checking the output when only a subset of pods require resources")
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if sd != nil {
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expected = []podDesc{
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{
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podName: "pod-00",
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cntName: "cnt-00",
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},
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{
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podName: "pod-01",
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cntName: "cnt-00",
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resourceName: sd.resourceName,
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resourceAmount: 1,
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cpuRequest: 2000,
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},
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{
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podName: "pod-02",
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cntName: "cnt-00",
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cpuRequest: 2000,
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},
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{
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podName: "pod-03",
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cntName: "cnt-00",
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resourceName: sd.resourceName,
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resourceAmount: 1,
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cpuRequest: 1000,
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},
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}
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} else {
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expected = []podDesc{
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{
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podName: "pod-00",
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cntName: "cnt-00",
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},
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{
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podName: "pod-01",
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cntName: "cnt-00",
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cpuRequest: 2000,
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},
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{
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podName: "pod-02",
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cntName: "cnt-00",
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cpuRequest: 2000,
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},
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{
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podName: "pod-03",
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cntName: "cnt-00",
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cpuRequest: 1000,
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},
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}
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}
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tpd.createPodsForTest(ctx, f, expected)
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expectPodResources(ctx, 1, cli, expected)
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tpd.deletePodsForTest(ctx, f)
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tpd = newTestPodData()
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ginkgo.By("checking the output when creating pods which require resources between calls")
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if sd != nil {
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expected = []podDesc{
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{
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podName: "pod-00",
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cntName: "cnt-00",
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},
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{
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podName: "pod-01",
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cntName: "cnt-00",
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resourceName: sd.resourceName,
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resourceAmount: 1,
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cpuRequest: 2000,
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},
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{
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podName: "pod-02",
|
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cntName: "cnt-00",
|
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cpuRequest: 2000,
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},
|
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}
|
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} else {
|
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expected = []podDesc{
|
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{
|
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podName: "pod-00",
|
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cntName: "cnt-00",
|
|
},
|
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{
|
|
podName: "pod-01",
|
|
cntName: "cnt-00",
|
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cpuRequest: 2000,
|
|
},
|
|
{
|
|
podName: "pod-02",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 2000,
|
|
},
|
|
}
|
|
}
|
|
|
|
tpd.createPodsForTest(ctx, f, expected)
|
|
expectPodResources(ctx, 1, cli, expected)
|
|
|
|
if sd != nil {
|
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extra = podDesc{
|
|
podName: "pod-03",
|
|
cntName: "cnt-00",
|
|
resourceName: sd.resourceName,
|
|
resourceAmount: 1,
|
|
cpuRequest: 1000,
|
|
}
|
|
} else {
|
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extra = podDesc{
|
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podName: "pod-03",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1000,
|
|
}
|
|
|
|
}
|
|
|
|
tpd.createPodsForTest(ctx, f, []podDesc{
|
|
extra,
|
|
})
|
|
|
|
expected = append(expected, extra)
|
|
expectPodResources(ctx, 1, cli, expected)
|
|
tpd.deletePodsForTest(ctx, f)
|
|
|
|
tpd = newTestPodData()
|
|
ginkgo.By("checking the output when deleting pods which require resources between calls")
|
|
|
|
if sd != nil {
|
|
expected = []podDesc{
|
|
{
|
|
podName: "pod-00",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1000,
|
|
},
|
|
{
|
|
podName: "pod-01",
|
|
cntName: "cnt-00",
|
|
resourceName: sd.resourceName,
|
|
resourceAmount: 1,
|
|
cpuRequest: 2000,
|
|
},
|
|
{
|
|
podName: "pod-02",
|
|
cntName: "cnt-00",
|
|
},
|
|
{
|
|
podName: "pod-03",
|
|
cntName: "cnt-00",
|
|
resourceName: sd.resourceName,
|
|
resourceAmount: 1,
|
|
cpuRequest: 1000,
|
|
},
|
|
}
|
|
} else {
|
|
expected = []podDesc{
|
|
{
|
|
podName: "pod-00",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1000,
|
|
},
|
|
{
|
|
podName: "pod-01",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1000,
|
|
},
|
|
{
|
|
podName: "pod-02",
|
|
cntName: "cnt-00",
|
|
},
|
|
{
|
|
podName: "pod-03",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1000,
|
|
},
|
|
}
|
|
}
|
|
tpd.createPodsForTest(ctx, f, expected)
|
|
expectPodResources(ctx, 1, cli, expected)
|
|
|
|
tpd.deletePod(ctx, f, "pod-01")
|
|
expectedPostDelete := filterOutDesc(expected, "pod-01")
|
|
expectPodResources(ctx, 1, cli, expectedPostDelete)
|
|
tpd.deletePodsForTest(ctx, f)
|
|
|
|
tpd = newTestPodData()
|
|
ginkgo.By("checking the output when pods request non integral CPUs")
|
|
if sd != nil {
|
|
expected = []podDesc{
|
|
{
|
|
podName: "pod-00",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1500,
|
|
},
|
|
{
|
|
podName: "pod-01",
|
|
cntName: "cnt-00",
|
|
resourceName: sd.resourceName,
|
|
resourceAmount: 1,
|
|
cpuRequest: 1500,
|
|
},
|
|
}
|
|
} else {
|
|
expected = []podDesc{
|
|
{
|
|
podName: "pod-00",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 1500,
|
|
},
|
|
}
|
|
|
|
}
|
|
tpd.createPodsForTest(ctx, f, expected)
|
|
expectPodResources(ctx, 1, cli, expected)
|
|
tpd.deletePodsForTest(ctx, f)
|
|
|
|
}
|
|
|
|
func podresourcesGetAllocatableResourcesTests(ctx context.Context, cli kubeletpodresourcesv1.PodResourcesListerClient, sd *sriovData, onlineCPUs, reservedSystemCPUs cpuset.CPUSet) {
|
|
ginkgo.By("checking the devices known to the kubelet")
|
|
resp, err := cli.GetAllocatableResources(ctx, &kubeletpodresourcesv1.AllocatableResourcesRequest{})
|
|
framework.ExpectNoErrorWithOffset(1, err)
|
|
devs := resp.GetDevices()
|
|
var cpus []int
|
|
for _, cpuid := range resp.GetCpuIds() {
|
|
cpus = append(cpus, int(cpuid))
|
|
}
|
|
allocatableCPUs := cpuset.New(cpus...)
|
|
|
|
if onlineCPUs.Size() == 0 {
|
|
ginkgo.By("expecting no CPUs reported")
|
|
gomega.ExpectWithOffset(1, onlineCPUs.Size()).To(gomega.Equal(reservedSystemCPUs.Size()), "with no online CPUs, no CPUs should be reserved")
|
|
} else {
|
|
ginkgo.By(fmt.Sprintf("expecting online CPUs reported - online=%v (%d) reserved=%v (%d)", onlineCPUs, onlineCPUs.Size(), reservedSystemCPUs, reservedSystemCPUs.Size()))
|
|
if reservedSystemCPUs.Size() > onlineCPUs.Size() {
|
|
ginkgo.Fail("more reserved CPUs than online")
|
|
}
|
|
expectedCPUs := onlineCPUs.Difference(reservedSystemCPUs)
|
|
|
|
ginkgo.By(fmt.Sprintf("expecting CPUs '%v'='%v'", allocatableCPUs, expectedCPUs))
|
|
gomega.ExpectWithOffset(1, allocatableCPUs.Equals(expectedCPUs)).To(gomega.BeTrue(), "mismatch expecting CPUs")
|
|
}
|
|
|
|
if sd == nil { // no devices in the environment, so expect no devices
|
|
ginkgo.By("expecting no devices reported")
|
|
gomega.ExpectWithOffset(1, devs).To(gomega.BeEmpty(), fmt.Sprintf("got unexpected devices %#v", devs))
|
|
return
|
|
}
|
|
|
|
ginkgo.By(fmt.Sprintf("expecting some %q devices reported", sd.resourceName))
|
|
gomega.ExpectWithOffset(1, devs).ToNot(gomega.BeEmpty())
|
|
for _, dev := range devs {
|
|
framework.ExpectEqual(dev.ResourceName, sd.resourceName)
|
|
gomega.ExpectWithOffset(1, dev.DeviceIds).ToNot(gomega.BeEmpty())
|
|
}
|
|
}
|
|
|
|
func podresourcesGetTests(ctx context.Context, f *framework.Framework, cli kubeletpodresourcesv1.PodResourcesListerClient) {
|
|
//var err error
|
|
ginkgo.By("checking the output when no pods are present")
|
|
expected := []podDesc{}
|
|
resp, err := cli.Get(ctx, &kubeletpodresourcesv1.GetPodResourcesRequest{PodName: "test", PodNamespace: f.Namespace.Name})
|
|
podResourceList := []*kubeletpodresourcesv1.PodResources{resp.GetPodResources()}
|
|
framework.ExpectError(err, "pod not found")
|
|
res := convertToMap(podResourceList)
|
|
err = matchPodDescWithResources(expected, res)
|
|
framework.ExpectNoError(err, "matchPodDescWithResources() failed err %v", err)
|
|
|
|
tpd := newTestPodData()
|
|
ginkgo.By("checking the output when only pods which don't require resources are present")
|
|
expected = []podDesc{
|
|
{
|
|
podName: "pod-00",
|
|
cntName: "cnt-00",
|
|
},
|
|
}
|
|
tpd.createPodsForTest(ctx, f, expected)
|
|
resp, err = cli.Get(ctx, &kubeletpodresourcesv1.GetPodResourcesRequest{PodName: "pod-00", PodNamespace: f.Namespace.Name})
|
|
framework.ExpectNoError(err, "Get() call failed for pod %s/%s", f.Namespace.Name, "pod-00")
|
|
podResourceList = []*kubeletpodresourcesv1.PodResources{resp.GetPodResources()}
|
|
res = convertToMap(podResourceList)
|
|
err = matchPodDescWithResources(expected, res)
|
|
framework.ExpectNoError(err, "matchPodDescWithResources() failed err %v", err)
|
|
tpd.deletePodsForTest(ctx, f)
|
|
|
|
tpd = newTestPodData()
|
|
ginkgo.By("checking the output when only pod require CPU")
|
|
expected = []podDesc{
|
|
{
|
|
podName: "pod-01",
|
|
cntName: "cnt-00",
|
|
cpuRequest: 2000,
|
|
},
|
|
}
|
|
tpd.createPodsForTest(ctx, f, expected)
|
|
resp, err = cli.Get(ctx, &kubeletpodresourcesv1.GetPodResourcesRequest{PodName: "pod-01", PodNamespace: f.Namespace.Name})
|
|
framework.ExpectNoError(err, "Get() call failed for pod %s/%s", f.Namespace.Name, "pod-01")
|
|
podResourceList = []*kubeletpodresourcesv1.PodResources{resp.GetPodResources()}
|
|
res = convertToMap(podResourceList)
|
|
err = matchPodDescWithResources(expected, res)
|
|
framework.ExpectNoError(err, "matchPodDescWithResources() failed err %v", err)
|
|
tpd.deletePodsForTest(ctx, f)
|
|
}
|
|
|
|
// Serial because the test updates kubelet configuration.
|
|
var _ = SIGDescribe("POD Resources [Serial] [Feature:PodResources][NodeFeature:PodResources]", func() {
|
|
f := framework.NewDefaultFramework("podresources-test")
|
|
f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged
|
|
|
|
reservedSystemCPUs := cpuset.New(1)
|
|
|
|
ginkgo.Context("with SRIOV devices in the system", func() {
|
|
ginkgo.BeforeEach(func() {
|
|
requireSRIOVDevices()
|
|
})
|
|
|
|
ginkgo.Context("with CPU manager Static policy", func() {
|
|
ginkgo.BeforeEach(func(ctx context.Context) {
|
|
// this is a very rough check. We just want to rule out system that does NOT have enough resources
|
|
_, cpuAlloc, _ := getLocalNodeCPUDetails(ctx, f)
|
|
|
|
if cpuAlloc < minCoreCount {
|
|
e2eskipper.Skipf("Skipping CPU Manager tests since the CPU allocatable < %d", minCoreCount)
|
|
}
|
|
})
|
|
|
|
// empty context to apply kubelet config changes
|
|
ginkgo.Context("", func() {
|
|
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
// Set the CPU Manager policy to static.
|
|
initialConfig.CPUManagerPolicy = string(cpumanager.PolicyStatic)
|
|
|
|
// Set the CPU Manager reconcile period to 1 second.
|
|
initialConfig.CPUManagerReconcilePeriod = metav1.Duration{Duration: 1 * time.Second}
|
|
|
|
cpus := reservedSystemCPUs.String()
|
|
framework.Logf("configurePodResourcesInKubelet: using reservedSystemCPUs=%q", cpus)
|
|
initialConfig.ReservedSystemCPUs = cpus
|
|
})
|
|
|
|
ginkgo.It("should return the expected responses", func(ctx context.Context) {
|
|
onlineCPUs, err := getOnlineCPUs()
|
|
framework.ExpectNoError(err, "getOnlineCPUs() failed err: %v", err)
|
|
|
|
configMap := getSRIOVDevicePluginConfigMap(framework.TestContext.SriovdpConfigMapFile)
|
|
sd := setupSRIOVConfigOrFail(ctx, f, configMap)
|
|
ginkgo.DeferCleanup(teardownSRIOVConfigOrFail, f, sd)
|
|
|
|
waitForSRIOVResources(ctx, f, sd)
|
|
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err: %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err: %v", err)
|
|
defer conn.Close()
|
|
|
|
waitForSRIOVResources(ctx, f, sd)
|
|
|
|
ginkgo.By("checking List()")
|
|
podresourcesListTests(ctx, f, cli, sd)
|
|
ginkgo.By("checking GetAllocatableResources()")
|
|
podresourcesGetAllocatableResourcesTests(ctx, cli, sd, onlineCPUs, reservedSystemCPUs)
|
|
})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("with CPU manager None policy", func() {
|
|
ginkgo.It("should return the expected responses", func(ctx context.Context) {
|
|
// current default is "none" policy - no need to restart the kubelet
|
|
|
|
requireSRIOVDevices()
|
|
|
|
configMap := getSRIOVDevicePluginConfigMap(framework.TestContext.SriovdpConfigMapFile)
|
|
sd := setupSRIOVConfigOrFail(ctx, f, configMap)
|
|
ginkgo.DeferCleanup(teardownSRIOVConfigOrFail, f, sd)
|
|
|
|
waitForSRIOVResources(ctx, f, sd)
|
|
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err: %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err: %v", err)
|
|
defer conn.Close()
|
|
|
|
waitForSRIOVResources(ctx, f, sd)
|
|
|
|
// intentionally passing empty cpuset instead of onlineCPUs because with none policy
|
|
// we should get no allocatable cpus - no exclusively allocatable CPUs, depends on policy static
|
|
podresourcesGetAllocatableResourcesTests(ctx, cli, sd, cpuset.CPUSet{}, cpuset.CPUSet{})
|
|
})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("without SRIOV devices in the system", func() {
|
|
ginkgo.BeforeEach(func() {
|
|
requireLackOfSRIOVDevices()
|
|
})
|
|
|
|
ginkgo.Context("with CPU manager Static policy", func() {
|
|
ginkgo.BeforeEach(func(ctx context.Context) {
|
|
// this is a very rough check. We just want to rule out system that does NOT have enough resources
|
|
_, cpuAlloc, _ := getLocalNodeCPUDetails(ctx, f)
|
|
|
|
if cpuAlloc < minCoreCount {
|
|
e2eskipper.Skipf("Skipping CPU Manager tests since the CPU allocatable < %d", minCoreCount)
|
|
}
|
|
})
|
|
|
|
// empty context to apply kubelet config changes
|
|
ginkgo.Context("", func() {
|
|
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
// Set the CPU Manager policy to static.
|
|
initialConfig.CPUManagerPolicy = string(cpumanager.PolicyStatic)
|
|
|
|
// Set the CPU Manager reconcile period to 1 second.
|
|
initialConfig.CPUManagerReconcilePeriod = metav1.Duration{Duration: 1 * time.Second}
|
|
|
|
cpus := reservedSystemCPUs.String()
|
|
framework.Logf("configurePodResourcesInKubelet: using reservedSystemCPUs=%q", cpus)
|
|
initialConfig.ReservedSystemCPUs = cpus
|
|
if initialConfig.FeatureGates == nil {
|
|
initialConfig.FeatureGates = make(map[string]bool)
|
|
}
|
|
initialConfig.FeatureGates[string(kubefeatures.KubeletPodResourcesGet)] = true
|
|
})
|
|
|
|
ginkgo.It("should return the expected responses", func(ctx context.Context) {
|
|
onlineCPUs, err := getOnlineCPUs()
|
|
framework.ExpectNoError(err, "getOnlineCPUs() failed err: %v", err)
|
|
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err: %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err: %v", err)
|
|
defer conn.Close()
|
|
|
|
podresourcesListTests(ctx, f, cli, nil)
|
|
podresourcesGetAllocatableResourcesTests(ctx, cli, nil, onlineCPUs, reservedSystemCPUs)
|
|
podresourcesGetTests(ctx, f, cli)
|
|
})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("with CPU manager None policy", func() {
|
|
ginkgo.It("should return the expected responses", func(ctx context.Context) {
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err: %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err: %v", err)
|
|
defer conn.Close()
|
|
|
|
// intentionally passing empty cpuset instead of onlineCPUs because with none policy
|
|
// we should get no allocatable cpus - no exclusively allocatable CPUs, depends on policy static
|
|
podresourcesGetAllocatableResourcesTests(ctx, cli, nil, cpuset.CPUSet{}, cpuset.CPUSet{})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("with disabled KubeletPodResourcesGet feature gate", func() {
|
|
|
|
ginkgo.It("should return the expected error with the feature gate disabled", func(ctx context.Context) {
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() faild err %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err %v", err)
|
|
defer conn.Close()
|
|
|
|
ginkgo.By("checking Get fail if the feature gate is not enabled")
|
|
getRes, err := cli.Get(ctx, &kubeletpodresourcesv1.GetPodResourcesRequest{PodName: "test", PodNamespace: f.Namespace.Name})
|
|
framework.Logf("Get result: %v, err: %v", getRes, err)
|
|
framework.ExpectError(err, "With feature gate disabled, the call must fail")
|
|
})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("with a topology-unaware device plugin, which reports resources w/o hardware topology", func() {
|
|
ginkgo.Context("with CPU manager Static policy", func() {
|
|
ginkgo.BeforeEach(func(ctx context.Context) {
|
|
// this is a very rough check. We just want to rule out system that does NOT have enough resources
|
|
_, cpuAlloc, _ := getLocalNodeCPUDetails(ctx, f)
|
|
|
|
if cpuAlloc < minCoreCount {
|
|
e2eskipper.Skipf("Skipping CPU Manager tests since the CPU allocatable < %d", minCoreCount)
|
|
}
|
|
})
|
|
|
|
// empty context to apply kubelet config changes
|
|
ginkgo.Context("", func() {
|
|
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
// Set the CPU Manager policy to static.
|
|
initialConfig.CPUManagerPolicy = string(cpumanager.PolicyStatic)
|
|
|
|
// Set the CPU Manager reconcile period to 1 second.
|
|
initialConfig.CPUManagerReconcilePeriod = metav1.Duration{Duration: 1 * time.Second}
|
|
|
|
cpus := reservedSystemCPUs.String()
|
|
framework.Logf("configurePodResourcesInKubelet: using reservedSystemCPUs=%q", cpus)
|
|
initialConfig.ReservedSystemCPUs = cpus
|
|
})
|
|
|
|
ginkgo.It("should return proper podresources the same as before the restart of kubelet", func(ctx context.Context) {
|
|
dpPod := setupSampleDevicePluginOrFail(ctx, f)
|
|
ginkgo.DeferCleanup(teardownSampleDevicePluginOrFail, f, dpPod)
|
|
|
|
waitForTopologyUnawareResources(ctx, f)
|
|
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err: %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err: %v", err)
|
|
defer conn.Close()
|
|
|
|
ginkgo.By("checking List and resources topology unaware resource should be without topology")
|
|
|
|
allocatableResponse, _ := cli.GetAllocatableResources(ctx, &kubeletpodresourcesv1.AllocatableResourcesRequest{})
|
|
for _, dev := range allocatableResponse.GetDevices() {
|
|
if dev.ResourceName != defaultTopologyUnawareResourceName {
|
|
continue
|
|
}
|
|
|
|
framework.ExpectEqual(dev.Topology == nil, true, "Topology is expected to be empty for topology unaware resources")
|
|
}
|
|
|
|
desc := podDesc{
|
|
podName: "pod-01",
|
|
cntName: "cnt-01",
|
|
resourceName: defaultTopologyUnawareResourceName,
|
|
resourceAmount: 1,
|
|
cpuRequest: 1000,
|
|
}
|
|
|
|
tpd := newTestPodData()
|
|
tpd.createPodsForTest(ctx, f, []podDesc{
|
|
desc,
|
|
})
|
|
|
|
expectPodResources(ctx, 1, cli, []podDesc{desc})
|
|
|
|
ginkgo.By("Restarting Kubelet")
|
|
restartKubelet(true)
|
|
|
|
// we need to wait for the node to be reported ready before we can safely query
|
|
// the podresources endpoint again. Otherwise we will have false negatives.
|
|
ginkgo.By("Wait for node to be ready")
|
|
waitForTopologyUnawareResources(ctx, f)
|
|
|
|
expectPodResources(ctx, 1, cli, []podDesc{desc})
|
|
tpd.deletePodsForTest(ctx, f)
|
|
})
|
|
})
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("when querying /metrics [NodeConformance]", func() {
|
|
tempSetCurrentKubeletConfig(f, func(ctx context.Context, initialConfig *kubeletconfig.KubeletConfiguration) {
|
|
if initialConfig.FeatureGates == nil {
|
|
initialConfig.FeatureGates = make(map[string]bool)
|
|
}
|
|
initialConfig.FeatureGates[string(kubefeatures.KubeletPodResourcesGet)] = true
|
|
})
|
|
ginkgo.BeforeEach(func(ctx context.Context) {
|
|
// ensure APIs have been called at least once
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err %v", err)
|
|
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err %v", err)
|
|
defer conn.Close()
|
|
|
|
_, err = cli.List(ctx, &kubeletpodresourcesv1.ListPodResourcesRequest{})
|
|
framework.ExpectNoError(err, "List() failed err %v", err)
|
|
|
|
_, err = cli.GetAllocatableResources(ctx, &kubeletpodresourcesv1.AllocatableResourcesRequest{})
|
|
framework.ExpectNoError(err, "GetAllocatableResources() failed err %v", err)
|
|
|
|
desc := podDesc{
|
|
podName: "pod-01",
|
|
cntName: "cnt-01",
|
|
}
|
|
tpd := newTestPodData()
|
|
tpd.createPodsForTest(ctx, f, []podDesc{
|
|
desc,
|
|
})
|
|
expectPodResources(ctx, 1, cli, []podDesc{desc})
|
|
|
|
expected := []podDesc{}
|
|
resp, err := cli.Get(ctx, &kubeletpodresourcesv1.GetPodResourcesRequest{PodName: "pod-01", PodNamespace: f.Namespace.Name})
|
|
framework.ExpectNoError(err, "Get() call failed for pod %s/%s", f.Namespace.Name, "pod-01")
|
|
podResourceList := []*kubeletpodresourcesv1.PodResources{resp.GetPodResources()}
|
|
res := convertToMap(podResourceList)
|
|
err = matchPodDescWithResources(expected, res)
|
|
framework.ExpectNoError(err, "matchPodDescWithResources() failed err %v", err)
|
|
tpd.deletePodsForTest(ctx, f)
|
|
})
|
|
|
|
ginkgo.It("should report the values for the podresources metrics", func(ctx context.Context) {
|
|
// we updated the kubelet config in BeforeEach, so we can assume we start fresh.
|
|
// being [Serial], we can also assume noone else but us is running pods.
|
|
ginkgo.By("Checking the value of the podresources metrics")
|
|
|
|
matchResourceMetrics := gstruct.MatchKeys(gstruct.IgnoreExtras, gstruct.Keys{
|
|
"kubelet_pod_resources_endpoint_requests_total": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
|
"": timelessSampleAtLeast(1),
|
|
}),
|
|
"kubelet_pod_resources_endpoint_requests_list": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
|
"": timelessSampleAtLeast(1),
|
|
}),
|
|
"kubelet_pod_resources_endpoint_requests_get_allocatable": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
|
"": timelessSampleAtLeast(1),
|
|
}),
|
|
"kubelet_pod_resources_endpoint_requests_get": gstruct.MatchAllElements(nodeID, gstruct.Elements{
|
|
"": timelessSampleAtLeast(1),
|
|
}),
|
|
// not checking errors: the calls don't have non-catastrophic (e.g. out of memory) error conditions yet.
|
|
})
|
|
|
|
ginkgo.By("Giving the Kubelet time to start up and produce metrics")
|
|
gomega.Eventually(ctx, getPodResourcesMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
|
ginkgo.By("Ensuring the metrics match the expectations a few more times")
|
|
gomega.Consistently(ctx, getPodResourcesMetrics, 1*time.Minute, 15*time.Second).Should(matchResourceMetrics)
|
|
})
|
|
})
|
|
|
|
ginkgo.Context("with the builtin rate limit values", func() {
|
|
ginkgo.It("should hit throttling when calling podresources List in a tight loop", func(ctx context.Context) {
|
|
// ensure APIs have been called at least once
|
|
endpoint, err := util.LocalEndpoint(defaultPodResourcesPath, podresources.Socket)
|
|
framework.ExpectNoError(err, "LocalEndpoint() failed err %v", err)
|
|
|
|
ginkgo.By("Connecting to the kubelet endpoint")
|
|
cli, conn, err := podresources.GetV1Client(endpoint, defaultPodResourcesTimeout, defaultPodResourcesMaxSize)
|
|
framework.ExpectNoError(err, "GetV1Client() failed err %v", err)
|
|
defer conn.Close()
|
|
|
|
tries := podresourcesgrpc.DefaultQPS * 2 // This should also be greater than DefaultBurstTokens
|
|
errs := []error{}
|
|
|
|
ginkgo.By(fmt.Sprintf("Issuing %d List() calls in a tight loop", tries))
|
|
startTime := time.Now()
|
|
for try := 0; try < tries; try++ {
|
|
_, err = cli.List(ctx, &kubeletpodresourcesv1.ListPodResourcesRequest{})
|
|
errs = append(errs, err)
|
|
}
|
|
elapsed := time.Since(startTime)
|
|
|
|
ginkgo.By(fmt.Sprintf("Checking return codes for %d List() calls in %v", tries, elapsed))
|
|
|
|
framework.ExpectNoError(errs[0], "the first List() call unexpectedly failed with %v", errs[0])
|
|
// we would expect (burst) successes and then (tries-burst) errors on a clean test environment running with
|
|
// enough CPU power. CI is usually harsher. So we relax constraints, expecting at least _a_ failure, while
|
|
// we are likely to get much more. But we can't predict yet how more we should expect, so we prefer to relax
|
|
// constraints than to risk flakes at this stage.
|
|
errLimitExceededCount := 0
|
|
for _, err := range errs[1:] {
|
|
if errors.Is(err, podresourcesgrpc.ErrorLimitExceeded) {
|
|
errLimitExceededCount++
|
|
}
|
|
}
|
|
gomega.Expect(errLimitExceededCount).ToNot(gomega.BeZero(), "never hit the rate limit trying %d calls in %v", tries, elapsed)
|
|
|
|
framework.Logf("got %d/%d rate limit errors, at least one needed, the more the better", errLimitExceededCount, tries)
|
|
|
|
// this is not needed for this test. We're done. But we need to play nice with *other* tests which may run just after,
|
|
// and which need to query the API. If they run "too fast", they can still be throttled because the throttling period
|
|
// is not exhausted yet, yielding false negatives, leading to flakes.
|
|
// We can't reset the period for the rate limit, we just wait "long enough" to make sure we absorb the burst
|
|
// and other queries are not rejected because happening to soon
|
|
ginkgo.By("Cooling down to reset the podresources API rate limit")
|
|
time.Sleep(5 * time.Second)
|
|
})
|
|
})
|
|
})
|
|
|
|
func requireLackOfSRIOVDevices() {
|
|
if sriovdevCount, err := countSRIOVDevices(); err != nil || sriovdevCount > 0 {
|
|
e2eskipper.Skipf("this test is meant to run on a system with no configured VF from SRIOV device")
|
|
}
|
|
}
|
|
|
|
func getOnlineCPUs() (cpuset.CPUSet, error) {
|
|
onlineCPUList, err := os.ReadFile("/sys/devices/system/cpu/online")
|
|
if err != nil {
|
|
return cpuset.CPUSet{}, err
|
|
}
|
|
return cpuset.Parse(strings.TrimSpace(string(onlineCPUList)))
|
|
}
|
|
|
|
func setupSampleDevicePluginOrFail(ctx context.Context, f *framework.Framework) *v1.Pod {
|
|
e2enode.WaitForNodeToBeReady(ctx, f.ClientSet, framework.TestContext.NodeName, 5*time.Minute)
|
|
|
|
dp := getSampleDevicePluginPod(kubeletdevicepluginv1beta1.DevicePluginPath)
|
|
dp.Spec.NodeName = framework.TestContext.NodeName
|
|
|
|
ginkgo.By("Create the sample device plugin pod")
|
|
|
|
dpPod := e2epod.NewPodClient(f).CreateSync(ctx, dp)
|
|
|
|
err := e2epod.WaitForPodCondition(ctx, f.ClientSet, dpPod.Namespace, dpPod.Name, "Ready", 120*time.Second, testutils.PodRunningReady)
|
|
if err != nil {
|
|
framework.Logf("Sample Device Pod %v took too long to enter running/ready: %v", dp.Name, err)
|
|
}
|
|
framework.ExpectNoError(err, "WaitForPodCondition() failed err: %v", err)
|
|
|
|
return dpPod
|
|
}
|
|
|
|
func teardownSampleDevicePluginOrFail(ctx context.Context, f *framework.Framework, pod *v1.Pod) {
|
|
gp := int64(0)
|
|
deleteOptions := metav1.DeleteOptions{
|
|
GracePeriodSeconds: &gp,
|
|
}
|
|
ginkgo.By(fmt.Sprintf("Delete sample device plugin pod %s/%s", pod.Namespace, pod.Name))
|
|
err := f.ClientSet.CoreV1().Pods(pod.Namespace).Delete(ctx, pod.Name, deleteOptions)
|
|
|
|
framework.ExpectNoError(err, "Failed to delete Pod %v in Namspace %v", pod.Name, pod.Namespace)
|
|
waitForAllContainerRemoval(ctx, pod.Name, pod.Namespace)
|
|
}
|
|
|
|
func waitForTopologyUnawareResources(ctx context.Context, f *framework.Framework) {
|
|
ginkgo.By(fmt.Sprintf("Waiting for %q resources to become available on the local node", defaultTopologyUnawareResourceName))
|
|
|
|
gomega.Eventually(ctx, func(ctx context.Context) bool {
|
|
node := getLocalNode(ctx, f)
|
|
resourceAmount := CountSampleDeviceAllocatable(node)
|
|
return resourceAmount > 0
|
|
}, 2*time.Minute, framework.Poll).Should(gomega.BeTrue())
|
|
}
|
|
|
|
func getPodResourcesMetrics(ctx context.Context) (e2emetrics.KubeletMetrics, error) {
|
|
// we are running out of good names, so we need to be unnecessarily specific to avoid clashes
|
|
ginkgo.By("getting Pod Resources metrics from the metrics API")
|
|
return e2emetrics.GrabKubeletMetricsWithoutProxy(ctx, nodeNameOrIP()+":10255", "/metrics")
|
|
}
|
|
|
|
func timelessSampleAtLeast(lower interface{}) types.GomegaMatcher {
|
|
return gstruct.PointTo(gstruct.MatchAllFields(gstruct.Fields{
|
|
// We already check Metric when matching the Id
|
|
"Metric": gstruct.Ignore(),
|
|
"Value": gomega.BeNumerically(">=", lower),
|
|
"Timestamp": gstruct.Ignore(),
|
|
"Histogram": gstruct.Ignore(),
|
|
}))
|
|
}
|