mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 08:20:23 +00:00
1019 lines
38 KiB
Go
1019 lines
38 KiB
Go
/*
|
|
Copyright 2015 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 scalability
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"math"
|
|
"os"
|
|
"sort"
|
|
"strconv"
|
|
"sync"
|
|
"time"
|
|
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/api/resource"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/fields"
|
|
"k8s.io/apimachinery/pkg/labels"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
utiluuid "k8s.io/apimachinery/pkg/util/uuid"
|
|
"k8s.io/apimachinery/pkg/watch"
|
|
clientset "k8s.io/client-go/kubernetes"
|
|
scaleclient "k8s.io/client-go/scale"
|
|
"k8s.io/client-go/tools/cache"
|
|
"k8s.io/client-go/util/workqueue"
|
|
"k8s.io/kubernetes/pkg/apis/batch"
|
|
api "k8s.io/kubernetes/pkg/apis/core"
|
|
"k8s.io/kubernetes/pkg/apis/extensions"
|
|
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
|
|
"k8s.io/kubernetes/test/e2e/framework"
|
|
"k8s.io/kubernetes/test/e2e/framework/timer"
|
|
testutils "k8s.io/kubernetes/test/utils"
|
|
imageutils "k8s.io/kubernetes/test/utils/image"
|
|
|
|
. "github.com/onsi/ginkgo"
|
|
. "github.com/onsi/gomega"
|
|
)
|
|
|
|
const (
|
|
PodStartupLatencyThreshold = 5 * time.Second
|
|
MinSaturationThreshold = 2 * time.Minute
|
|
MinPodsPerSecondThroughput = 8
|
|
DensityPollInterval = 10 * time.Second
|
|
MinPodStartupMeasurements = 500
|
|
)
|
|
|
|
// Maximum container failures this test tolerates before failing.
|
|
var MaxContainerFailures = 0
|
|
|
|
// Maximum no. of missing measurements related to pod-startup that the test tolerates.
|
|
var MaxMissingPodStartupMeasurements = 0
|
|
|
|
// Number of nodes in the cluster (computed inside BeforeEach).
|
|
var nodeCount = 0
|
|
|
|
type DensityTestConfig struct {
|
|
Configs []testutils.RunObjectConfig
|
|
ClientSets []clientset.Interface
|
|
InternalClientsets []internalclientset.Interface
|
|
ScaleClients []scaleclient.ScalesGetter
|
|
PollInterval time.Duration
|
|
PodCount int
|
|
// What kind of resource we want to create
|
|
kind schema.GroupKind
|
|
SecretConfigs []*testutils.SecretConfig
|
|
ConfigMapConfigs []*testutils.ConfigMapConfig
|
|
DaemonConfigs []*testutils.DaemonConfig
|
|
}
|
|
|
|
func (dtc *DensityTestConfig) runSecretConfigs(testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
for _, sc := range dtc.SecretConfigs {
|
|
sc.Run()
|
|
}
|
|
}
|
|
|
|
func (dtc *DensityTestConfig) runConfigMapConfigs(testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
for _, cmc := range dtc.ConfigMapConfigs {
|
|
cmc.Run()
|
|
}
|
|
}
|
|
|
|
func (dtc *DensityTestConfig) runDaemonConfigs(testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
for _, dc := range dtc.DaemonConfigs {
|
|
dc.Run()
|
|
}
|
|
}
|
|
|
|
func (dtc *DensityTestConfig) deleteSecrets(testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
for i := range dtc.SecretConfigs {
|
|
dtc.SecretConfigs[i].Stop()
|
|
}
|
|
}
|
|
|
|
func (dtc *DensityTestConfig) deleteConfigMaps(testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
for i := range dtc.ConfigMapConfigs {
|
|
dtc.ConfigMapConfigs[i].Stop()
|
|
}
|
|
}
|
|
|
|
func (dtc *DensityTestConfig) deleteDaemonSets(numberOfClients int, testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
for i := range dtc.DaemonConfigs {
|
|
framework.ExpectNoError(framework.DeleteResourceAndWaitForGC(
|
|
dtc.ClientSets[i%numberOfClients],
|
|
extensions.Kind("DaemonSet"),
|
|
dtc.DaemonConfigs[i].Namespace,
|
|
dtc.DaemonConfigs[i].Name,
|
|
))
|
|
}
|
|
}
|
|
|
|
func density30AddonResourceVerifier(numNodes int) map[string]framework.ResourceConstraint {
|
|
var apiserverMem uint64
|
|
var controllerMem uint64
|
|
var schedulerMem uint64
|
|
apiserverCPU := math.MaxFloat32
|
|
apiserverMem = math.MaxUint64
|
|
controllerCPU := math.MaxFloat32
|
|
controllerMem = math.MaxUint64
|
|
schedulerCPU := math.MaxFloat32
|
|
schedulerMem = math.MaxUint64
|
|
framework.Logf("Setting resource constraints for provider: %s", framework.TestContext.Provider)
|
|
if framework.ProviderIs("kubemark") {
|
|
if numNodes <= 5 {
|
|
apiserverCPU = 0.35
|
|
apiserverMem = 150 * (1024 * 1024)
|
|
controllerCPU = 0.15
|
|
controllerMem = 100 * (1024 * 1024)
|
|
schedulerCPU = 0.05
|
|
schedulerMem = 50 * (1024 * 1024)
|
|
} else if numNodes <= 100 {
|
|
apiserverCPU = 1.5
|
|
apiserverMem = 1500 * (1024 * 1024)
|
|
controllerCPU = 0.5
|
|
controllerMem = 500 * (1024 * 1024)
|
|
schedulerCPU = 0.4
|
|
schedulerMem = 180 * (1024 * 1024)
|
|
} else if numNodes <= 500 {
|
|
apiserverCPU = 3.5
|
|
apiserverMem = 3400 * (1024 * 1024)
|
|
controllerCPU = 1.3
|
|
controllerMem = 1100 * (1024 * 1024)
|
|
schedulerCPU = 1.5
|
|
schedulerMem = 500 * (1024 * 1024)
|
|
} else if numNodes <= 1000 {
|
|
apiserverCPU = 5.5
|
|
apiserverMem = 4000 * (1024 * 1024)
|
|
controllerCPU = 3
|
|
controllerMem = 2000 * (1024 * 1024)
|
|
schedulerCPU = 1.5
|
|
schedulerMem = 750 * (1024 * 1024)
|
|
}
|
|
} else {
|
|
if numNodes <= 100 {
|
|
apiserverCPU = 2.2
|
|
apiserverMem = 1700 * (1024 * 1024)
|
|
controllerCPU = 0.8
|
|
controllerMem = 530 * (1024 * 1024)
|
|
schedulerCPU = 0.4
|
|
schedulerMem = 180 * (1024 * 1024)
|
|
}
|
|
}
|
|
|
|
constraints := make(map[string]framework.ResourceConstraint)
|
|
constraints["fluentd-elasticsearch"] = framework.ResourceConstraint{
|
|
CPUConstraint: 0.2,
|
|
MemoryConstraint: 250 * (1024 * 1024),
|
|
}
|
|
constraints["elasticsearch-logging"] = framework.ResourceConstraint{
|
|
CPUConstraint: 2,
|
|
// TODO: bring it down to 750MB again, when we lower Kubelet verbosity level. I.e. revert #19164
|
|
MemoryConstraint: 5000 * (1024 * 1024),
|
|
}
|
|
constraints["heapster"] = framework.ResourceConstraint{
|
|
CPUConstraint: 2,
|
|
MemoryConstraint: 1800 * (1024 * 1024),
|
|
}
|
|
constraints["kibana-logging"] = framework.ResourceConstraint{
|
|
CPUConstraint: 0.2,
|
|
MemoryConstraint: 100 * (1024 * 1024),
|
|
}
|
|
constraints["kube-proxy"] = framework.ResourceConstraint{
|
|
CPUConstraint: 0.15,
|
|
MemoryConstraint: 100 * (1024 * 1024),
|
|
}
|
|
constraints["l7-lb-controller"] = framework.ResourceConstraint{
|
|
CPUConstraint: 0.2 + 0.00015*float64(numNodes),
|
|
MemoryConstraint: (75 + uint64(math.Ceil(0.8*float64(numNodes)))) * (1024 * 1024),
|
|
}
|
|
constraints["influxdb"] = framework.ResourceConstraint{
|
|
CPUConstraint: 2,
|
|
MemoryConstraint: 500 * (1024 * 1024),
|
|
}
|
|
constraints["kube-apiserver"] = framework.ResourceConstraint{
|
|
CPUConstraint: apiserverCPU,
|
|
MemoryConstraint: apiserverMem,
|
|
}
|
|
constraints["kube-controller-manager"] = framework.ResourceConstraint{
|
|
CPUConstraint: controllerCPU,
|
|
MemoryConstraint: controllerMem,
|
|
}
|
|
constraints["kube-scheduler"] = framework.ResourceConstraint{
|
|
CPUConstraint: schedulerCPU,
|
|
MemoryConstraint: schedulerMem,
|
|
}
|
|
constraints["coredns"] = framework.ResourceConstraint{
|
|
CPUConstraint: framework.NoCPUConstraint,
|
|
MemoryConstraint: 170 * (1024 * 1024),
|
|
}
|
|
constraints["kubedns"] = framework.ResourceConstraint{
|
|
CPUConstraint: framework.NoCPUConstraint,
|
|
MemoryConstraint: 170 * (1024 * 1024),
|
|
}
|
|
return constraints
|
|
}
|
|
|
|
func computeAverage(sample []float64) float64 {
|
|
sum := 0.0
|
|
for _, value := range sample {
|
|
sum += value
|
|
}
|
|
return sum / float64(len(sample))
|
|
}
|
|
|
|
func computeQuantile(sample []float64, quantile float64) float64 {
|
|
Expect(sort.Float64sAreSorted(sample)).To(Equal(true))
|
|
Expect(quantile >= 0.0 && quantile <= 1.0).To(Equal(true))
|
|
index := int(quantile*float64(len(sample))) - 1
|
|
if index < 0 {
|
|
return math.NaN()
|
|
}
|
|
return sample[index]
|
|
}
|
|
|
|
func logPodStartupStatus(
|
|
c clientset.Interface,
|
|
expectedPods int,
|
|
observedLabels map[string]string,
|
|
period time.Duration,
|
|
scheduleThroughputs *[]float64,
|
|
stopCh chan struct{}) {
|
|
|
|
label := labels.SelectorFromSet(labels.Set(observedLabels))
|
|
podStore, err := testutils.NewPodStore(c, metav1.NamespaceAll, label, fields.Everything())
|
|
framework.ExpectNoError(err)
|
|
defer podStore.Stop()
|
|
|
|
ticker := time.NewTicker(period)
|
|
startupStatus := testutils.ComputeRCStartupStatus(podStore.List(), expectedPods)
|
|
lastScheduledCount := startupStatus.Scheduled
|
|
defer ticker.Stop()
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
case <-stopCh:
|
|
return
|
|
}
|
|
// Log status of the pods.
|
|
startupStatus := testutils.ComputeRCStartupStatus(podStore.List(), expectedPods)
|
|
framework.Logf(startupStatus.String("Density"))
|
|
// Compute scheduling throughput for the latest time period.
|
|
throughput := float64(startupStatus.Scheduled-lastScheduledCount) / float64(period/time.Second)
|
|
*scheduleThroughputs = append(*scheduleThroughputs, throughput)
|
|
lastScheduledCount = startupStatus.Scheduled
|
|
}
|
|
}
|
|
|
|
// runDensityTest will perform a density test and return the time it took for
|
|
// all pods to start
|
|
func runDensityTest(dtc DensityTestConfig, testPhaseDurations *timer.TestPhaseTimer, scheduleThroughputs *[]float64) time.Duration {
|
|
defer GinkgoRecover()
|
|
|
|
// Create all secrets, configmaps and daemons.
|
|
dtc.runSecretConfigs(testPhaseDurations.StartPhase(250, "secrets creation"))
|
|
dtc.runConfigMapConfigs(testPhaseDurations.StartPhase(260, "configmaps creation"))
|
|
dtc.runDaemonConfigs(testPhaseDurations.StartPhase(270, "daemonsets creation"))
|
|
|
|
replicationCtrlStartupPhase := testPhaseDurations.StartPhase(300, "saturation pods creation")
|
|
defer replicationCtrlStartupPhase.End()
|
|
|
|
// Start scheduler CPU profile-gatherer before we begin cluster saturation.
|
|
profileGatheringDelay := time.Duration(1+nodeCount/100) * time.Minute
|
|
schedulerProfilingStopCh := framework.StartCPUProfileGatherer("kube-scheduler", "density", profileGatheringDelay)
|
|
|
|
// Start all replication controllers.
|
|
startTime := time.Now()
|
|
wg := sync.WaitGroup{}
|
|
wg.Add(len(dtc.Configs))
|
|
for i := range dtc.Configs {
|
|
config := dtc.Configs[i]
|
|
go func() {
|
|
defer GinkgoRecover()
|
|
// Call wg.Done() in defer to avoid blocking whole test
|
|
// in case of error from RunRC.
|
|
defer wg.Done()
|
|
framework.ExpectNoError(config.Run())
|
|
}()
|
|
}
|
|
logStopCh := make(chan struct{})
|
|
go logPodStartupStatus(dtc.ClientSets[0], dtc.PodCount, map[string]string{"type": "densityPod"}, dtc.PollInterval, scheduleThroughputs, logStopCh)
|
|
wg.Wait()
|
|
startupTime := time.Since(startTime)
|
|
close(logStopCh)
|
|
close(schedulerProfilingStopCh)
|
|
framework.Logf("E2E startup time for %d pods: %v", dtc.PodCount, startupTime)
|
|
framework.Logf("Throughput (pods/s) during cluster saturation phase: %v", float32(dtc.PodCount)/float32(startupTime/time.Second))
|
|
replicationCtrlStartupPhase.End()
|
|
|
|
// Grabbing scheduler memory profile after cluster saturation finished.
|
|
wg.Add(1)
|
|
framework.GatherMemoryProfile("kube-scheduler", "density", &wg)
|
|
wg.Wait()
|
|
|
|
printPodAllocationPhase := testPhaseDurations.StartPhase(400, "printing pod allocation")
|
|
defer printPodAllocationPhase.End()
|
|
// Print some data about Pod to Node allocation
|
|
By("Printing Pod to Node allocation data")
|
|
podList, err := dtc.ClientSets[0].CoreV1().Pods(metav1.NamespaceAll).List(metav1.ListOptions{})
|
|
framework.ExpectNoError(err)
|
|
pausePodAllocation := make(map[string]int)
|
|
systemPodAllocation := make(map[string][]string)
|
|
for _, pod := range podList.Items {
|
|
if pod.Namespace == metav1.NamespaceSystem {
|
|
systemPodAllocation[pod.Spec.NodeName] = append(systemPodAllocation[pod.Spec.NodeName], pod.Name)
|
|
} else {
|
|
pausePodAllocation[pod.Spec.NodeName]++
|
|
}
|
|
}
|
|
nodeNames := make([]string, 0)
|
|
for k := range pausePodAllocation {
|
|
nodeNames = append(nodeNames, k)
|
|
}
|
|
sort.Strings(nodeNames)
|
|
for _, node := range nodeNames {
|
|
framework.Logf("%v: %v pause pods, system pods: %v", node, pausePodAllocation[node], systemPodAllocation[node])
|
|
}
|
|
defer printPodAllocationPhase.End()
|
|
return startupTime
|
|
}
|
|
|
|
func cleanupDensityTest(dtc DensityTestConfig, testPhaseDurations *timer.TestPhaseTimer) {
|
|
defer GinkgoRecover()
|
|
podCleanupPhase := testPhaseDurations.StartPhase(900, "latency pods deletion")
|
|
defer podCleanupPhase.End()
|
|
By("Deleting created Collections")
|
|
numberOfClients := len(dtc.ClientSets)
|
|
// We explicitly delete all pods to have API calls necessary for deletion accounted in metrics.
|
|
for i := range dtc.Configs {
|
|
name := dtc.Configs[i].GetName()
|
|
namespace := dtc.Configs[i].GetNamespace()
|
|
kind := dtc.Configs[i].GetKind()
|
|
By(fmt.Sprintf("Cleaning up only the %v, garbage collector will clean up the pods", kind))
|
|
err := framework.DeleteResourceAndWaitForGC(dtc.ClientSets[i%numberOfClients], kind, namespace, name)
|
|
framework.ExpectNoError(err)
|
|
}
|
|
podCleanupPhase.End()
|
|
|
|
dtc.deleteSecrets(testPhaseDurations.StartPhase(910, "secrets deletion"))
|
|
dtc.deleteConfigMaps(testPhaseDurations.StartPhase(920, "configmaps deletion"))
|
|
dtc.deleteDaemonSets(numberOfClients, testPhaseDurations.StartPhase(930, "daemonsets deletion"))
|
|
}
|
|
|
|
// This test suite can take a long time to run, and can affect or be affected by other tests.
|
|
// So by default it is added to the ginkgo.skip list (see driver.go).
|
|
// To run this suite you must explicitly ask for it by setting the
|
|
// -t/--test flag or ginkgo.focus flag.
|
|
// IMPORTANT: This test is designed to work on large (>= 100 Nodes) clusters. For smaller ones
|
|
// results will not be representative for control-plane performance as we'll start hitting
|
|
// limits on Docker's concurrent container startup.
|
|
var _ = SIGDescribe("Density", func() {
|
|
var c clientset.Interface
|
|
var additionalPodsPrefix string
|
|
var ns string
|
|
var uuid string
|
|
var e2eStartupTime time.Duration
|
|
var totalPods int
|
|
var nodeCpuCapacity int64
|
|
var nodeMemCapacity int64
|
|
var nodes *v1.NodeList
|
|
var scheduleThroughputs []float64
|
|
|
|
testCaseBaseName := "density"
|
|
missingMeasurements := 0
|
|
var testPhaseDurations *timer.TestPhaseTimer
|
|
var profileGathererStopCh chan struct{}
|
|
var etcdMetricsCollector *framework.EtcdMetricsCollector
|
|
|
|
// Gathers data prior to framework namespace teardown
|
|
AfterEach(func() {
|
|
// Stop apiserver CPU profile gatherer and gather memory allocations profile.
|
|
close(profileGathererStopCh)
|
|
wg := sync.WaitGroup{}
|
|
wg.Add(1)
|
|
framework.GatherMemoryProfile("kube-apiserver", "density", &wg)
|
|
wg.Wait()
|
|
|
|
saturationThreshold := time.Duration((totalPods / MinPodsPerSecondThroughput)) * time.Second
|
|
if saturationThreshold < MinSaturationThreshold {
|
|
saturationThreshold = MinSaturationThreshold
|
|
}
|
|
Expect(e2eStartupTime).NotTo(BeNumerically(">", saturationThreshold))
|
|
saturationData := framework.SaturationTime{
|
|
TimeToSaturate: e2eStartupTime,
|
|
NumberOfNodes: nodeCount,
|
|
NumberOfPods: totalPods,
|
|
Throughput: float32(totalPods) / float32(e2eStartupTime/time.Second),
|
|
}
|
|
framework.Logf("Cluster saturation time: %s", framework.PrettyPrintJSON(saturationData))
|
|
|
|
summaries := make([]framework.TestDataSummary, 0, 2)
|
|
// Verify latency metrics.
|
|
highLatencyRequests, metrics, err := framework.HighLatencyRequests(c, nodeCount)
|
|
framework.ExpectNoError(err)
|
|
if err == nil {
|
|
summaries = append(summaries, metrics)
|
|
}
|
|
|
|
// Summarize scheduler metrics.
|
|
latency, err := framework.VerifySchedulerLatency(c)
|
|
framework.ExpectNoError(err)
|
|
if err == nil {
|
|
// Compute avg and quantiles of throughput (excluding last element, that's usually an outlier).
|
|
sampleSize := len(scheduleThroughputs)
|
|
if sampleSize > 1 {
|
|
scheduleThroughputs = scheduleThroughputs[:sampleSize-1]
|
|
sort.Float64s(scheduleThroughputs)
|
|
latency.ThroughputAverage = computeAverage(scheduleThroughputs)
|
|
latency.ThroughputPerc50 = computeQuantile(scheduleThroughputs, 0.5)
|
|
latency.ThroughputPerc90 = computeQuantile(scheduleThroughputs, 0.9)
|
|
latency.ThroughputPerc99 = computeQuantile(scheduleThroughputs, 0.99)
|
|
}
|
|
summaries = append(summaries, latency)
|
|
}
|
|
|
|
// Summarize etcd metrics.
|
|
err = etcdMetricsCollector.StopAndSummarize()
|
|
framework.ExpectNoError(err)
|
|
if err == nil {
|
|
summaries = append(summaries, etcdMetricsCollector.GetMetrics())
|
|
}
|
|
|
|
summaries = append(summaries, testPhaseDurations)
|
|
|
|
framework.PrintSummaries(summaries, testCaseBaseName)
|
|
|
|
// Fail if there were some high-latency requests.
|
|
Expect(highLatencyRequests).NotTo(BeNumerically(">", 0), "There should be no high-latency requests")
|
|
// Fail if more than the allowed threshold of measurements were missing in the latencyTest.
|
|
Expect(missingMeasurements <= MaxMissingPodStartupMeasurements).To(Equal(true))
|
|
})
|
|
|
|
options := framework.FrameworkOptions{
|
|
ClientQPS: 50.0,
|
|
ClientBurst: 100,
|
|
}
|
|
// Explicitly put here, to delete namespace at the end of the test
|
|
// (after measuring latency metrics, etc.).
|
|
f := framework.NewFramework(testCaseBaseName, options, nil)
|
|
f.NamespaceDeletionTimeout = time.Hour
|
|
|
|
BeforeEach(func() {
|
|
c = f.ClientSet
|
|
ns = f.Namespace.Name
|
|
testPhaseDurations = timer.NewTestPhaseTimer()
|
|
|
|
// This is used to mimic what new service account token volumes will
|
|
// eventually look like. We can remove this once the controller manager
|
|
// publishes the root CA certificate to each namespace.
|
|
c.CoreV1().ConfigMaps(ns).Create(&v1.ConfigMap{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "kube-root-ca-crt",
|
|
},
|
|
Data: map[string]string{
|
|
"ca.crt": "trust me, i'm a ca.crt",
|
|
},
|
|
})
|
|
|
|
_, nodes = framework.GetMasterAndWorkerNodesOrDie(c)
|
|
nodeCount = len(nodes.Items)
|
|
Expect(nodeCount).NotTo(BeZero())
|
|
|
|
nodeCpuCapacity = nodes.Items[0].Status.Allocatable.Cpu().MilliValue()
|
|
nodeMemCapacity = nodes.Items[0].Status.Allocatable.Memory().Value()
|
|
|
|
// Terminating a namespace (deleting the remaining objects from it - which
|
|
// generally means events) can affect the current run. Thus we wait for all
|
|
// terminating namespace to be finally deleted before starting this test.
|
|
err := framework.CheckTestingNSDeletedExcept(c, ns)
|
|
framework.ExpectNoError(err)
|
|
|
|
uuid = string(utiluuid.NewUUID())
|
|
|
|
framework.ExpectNoError(framework.ResetSchedulerMetrics(c))
|
|
framework.ExpectNoError(framework.ResetMetrics(c))
|
|
framework.ExpectNoError(os.Mkdir(fmt.Sprintf(framework.TestContext.OutputDir+"/%s", uuid), 0777))
|
|
|
|
framework.Logf("Listing nodes for easy debugging:\n")
|
|
for _, node := range nodes.Items {
|
|
var internalIP, externalIP string
|
|
for _, address := range node.Status.Addresses {
|
|
if address.Type == v1.NodeInternalIP {
|
|
internalIP = address.Address
|
|
}
|
|
if address.Type == v1.NodeExternalIP {
|
|
externalIP = address.Address
|
|
}
|
|
}
|
|
framework.Logf("Name: %v, clusterIP: %v, externalIP: %v", node.ObjectMeta.Name, internalIP, externalIP)
|
|
}
|
|
|
|
// Start apiserver CPU profile gatherer with frequency based on cluster size.
|
|
profileGatheringDelay := time.Duration(5+nodeCount/100) * time.Minute
|
|
profileGathererStopCh = framework.StartCPUProfileGatherer("kube-apiserver", "density", profileGatheringDelay)
|
|
|
|
// Start etcs metrics collection.
|
|
etcdMetricsCollector = framework.NewEtcdMetricsCollector()
|
|
etcdMetricsCollector.StartCollecting(time.Minute)
|
|
})
|
|
|
|
type Density struct {
|
|
// Controls if e2e latency tests should be run (they are slow)
|
|
runLatencyTest bool
|
|
podsPerNode int
|
|
// Controls how often the apiserver is polled for pods
|
|
interval time.Duration
|
|
// What kind of resource we should be creating. Default: ReplicationController
|
|
kind schema.GroupKind
|
|
secretsPerPod int
|
|
configMapsPerPod int
|
|
svcacctTokenProjectionsPerPod int
|
|
daemonsPerNode int
|
|
quotas bool
|
|
}
|
|
|
|
densityTests := []Density{
|
|
// TODO: Expose runLatencyTest as ginkgo flag.
|
|
{podsPerNode: 3, runLatencyTest: false, kind: api.Kind("ReplicationController")},
|
|
{podsPerNode: 30, runLatencyTest: true, kind: api.Kind("ReplicationController")},
|
|
{podsPerNode: 50, runLatencyTest: false, kind: api.Kind("ReplicationController")},
|
|
{podsPerNode: 95, runLatencyTest: true, kind: api.Kind("ReplicationController")},
|
|
{podsPerNode: 100, runLatencyTest: false, kind: api.Kind("ReplicationController")},
|
|
// Tests for other resource types:
|
|
{podsPerNode: 30, runLatencyTest: true, kind: extensions.Kind("Deployment")},
|
|
{podsPerNode: 30, runLatencyTest: true, kind: batch.Kind("Job")},
|
|
// Test scheduling when daemons are preset
|
|
{podsPerNode: 30, runLatencyTest: true, kind: api.Kind("ReplicationController"), daemonsPerNode: 2},
|
|
// Test with secrets
|
|
{podsPerNode: 30, runLatencyTest: true, kind: extensions.Kind("Deployment"), secretsPerPod: 2},
|
|
// Test with configmaps
|
|
{podsPerNode: 30, runLatencyTest: true, kind: extensions.Kind("Deployment"), configMapsPerPod: 2},
|
|
// Test with service account projected volumes
|
|
{podsPerNode: 30, runLatencyTest: true, kind: extensions.Kind("Deployment"), svcacctTokenProjectionsPerPod: 2},
|
|
// Test with quotas
|
|
{podsPerNode: 30, runLatencyTest: true, kind: api.Kind("ReplicationController"), quotas: true},
|
|
}
|
|
|
|
isCanonical := func(test *Density) bool {
|
|
return test.kind == api.Kind("ReplicationController") && test.daemonsPerNode == 0 && test.secretsPerPod == 0 && test.configMapsPerPod == 0 && !test.quotas
|
|
}
|
|
|
|
for _, testArg := range densityTests {
|
|
feature := "ManualPerformance"
|
|
switch testArg.podsPerNode {
|
|
case 30:
|
|
if isCanonical(&testArg) {
|
|
feature = "Performance"
|
|
}
|
|
case 95:
|
|
feature = "HighDensityPerformance"
|
|
}
|
|
|
|
name := fmt.Sprintf("[Feature:%s] should allow starting %d pods per node using %v with %v secrets, %v configmaps, %v token projections, and %v daemons",
|
|
feature,
|
|
testArg.podsPerNode,
|
|
testArg.kind,
|
|
testArg.secretsPerPod,
|
|
testArg.configMapsPerPod,
|
|
testArg.svcacctTokenProjectionsPerPod,
|
|
testArg.daemonsPerNode,
|
|
)
|
|
if testArg.quotas {
|
|
name += " with quotas"
|
|
}
|
|
itArg := testArg
|
|
It(name, func() {
|
|
nodePrepPhase := testPhaseDurations.StartPhase(100, "node preparation")
|
|
defer nodePrepPhase.End()
|
|
nodePreparer := framework.NewE2ETestNodePreparer(
|
|
f.ClientSet,
|
|
[]testutils.CountToStrategy{{Count: nodeCount, Strategy: &testutils.TrivialNodePrepareStrategy{}}},
|
|
)
|
|
framework.ExpectNoError(nodePreparer.PrepareNodes())
|
|
defer nodePreparer.CleanupNodes()
|
|
|
|
podsPerNode := itArg.podsPerNode
|
|
if podsPerNode == 30 {
|
|
f.AddonResourceConstraints = func() map[string]framework.ResourceConstraint { return density30AddonResourceVerifier(nodeCount) }()
|
|
}
|
|
totalPods = (podsPerNode - itArg.daemonsPerNode) * nodeCount
|
|
fileHndl, err := os.Create(fmt.Sprintf(framework.TestContext.OutputDir+"/%s/pod_states.csv", uuid))
|
|
framework.ExpectNoError(err)
|
|
defer fileHndl.Close()
|
|
nodePrepPhase.End()
|
|
|
|
// nodeCountPerNamespace and CreateNamespaces are defined in load.go
|
|
numberOfCollections := (nodeCount + nodeCountPerNamespace - 1) / nodeCountPerNamespace
|
|
namespaces, err := CreateNamespaces(f, numberOfCollections, fmt.Sprintf("density-%v", testArg.podsPerNode), testPhaseDurations.StartPhase(200, "namespace creation"))
|
|
framework.ExpectNoError(err)
|
|
if itArg.quotas {
|
|
framework.ExpectNoError(CreateQuotas(f, namespaces, totalPods+nodeCount, testPhaseDurations.StartPhase(210, "quota creation")))
|
|
}
|
|
|
|
configs := make([]testutils.RunObjectConfig, numberOfCollections)
|
|
secretConfigs := make([]*testutils.SecretConfig, 0, numberOfCollections*itArg.secretsPerPod)
|
|
configMapConfigs := make([]*testutils.ConfigMapConfig, 0, numberOfCollections*itArg.configMapsPerPod)
|
|
// Since all RCs are created at the same time, timeout for each config
|
|
// has to assume that it will be run at the very end.
|
|
podThroughput := 20
|
|
timeout := time.Duration(totalPods/podThroughput)*time.Second + 3*time.Minute
|
|
// createClients is defined in load.go
|
|
clients, internalClients, scalesClients, err := createClients(numberOfCollections)
|
|
framework.ExpectNoError(err)
|
|
for i := 0; i < numberOfCollections; i++ {
|
|
nsName := namespaces[i].Name
|
|
secretNames := []string{}
|
|
for j := 0; j < itArg.secretsPerPod; j++ {
|
|
secretName := fmt.Sprintf("density-secret-%v-%v", i, j)
|
|
secretConfigs = append(secretConfigs, &testutils.SecretConfig{
|
|
Content: map[string]string{"foo": "bar"},
|
|
Client: clients[i],
|
|
Name: secretName,
|
|
Namespace: nsName,
|
|
LogFunc: framework.Logf,
|
|
})
|
|
secretNames = append(secretNames, secretName)
|
|
}
|
|
configMapNames := []string{}
|
|
for j := 0; j < itArg.configMapsPerPod; j++ {
|
|
configMapName := fmt.Sprintf("density-configmap-%v-%v", i, j)
|
|
configMapConfigs = append(configMapConfigs, &testutils.ConfigMapConfig{
|
|
Content: map[string]string{"foo": "bar"},
|
|
Client: clients[i],
|
|
Name: configMapName,
|
|
Namespace: nsName,
|
|
LogFunc: framework.Logf,
|
|
})
|
|
configMapNames = append(configMapNames, configMapName)
|
|
}
|
|
name := fmt.Sprintf("density%v-%v-%v", totalPods, i, uuid)
|
|
baseConfig := &testutils.RCConfig{
|
|
Client: clients[i],
|
|
InternalClient: internalClients[i],
|
|
ScalesGetter: scalesClients[i],
|
|
Image: imageutils.GetPauseImageName(),
|
|
Name: name,
|
|
Namespace: nsName,
|
|
Labels: map[string]string{"type": "densityPod"},
|
|
PollInterval: DensityPollInterval,
|
|
Timeout: timeout,
|
|
PodStatusFile: fileHndl,
|
|
Replicas: (totalPods + numberOfCollections - 1) / numberOfCollections,
|
|
CpuRequest: nodeCpuCapacity / 100,
|
|
MemRequest: nodeMemCapacity / 100,
|
|
MaxContainerFailures: &MaxContainerFailures,
|
|
Silent: true,
|
|
LogFunc: framework.Logf,
|
|
SecretNames: secretNames,
|
|
ConfigMapNames: configMapNames,
|
|
ServiceAccountTokenProjections: itArg.svcacctTokenProjectionsPerPod,
|
|
}
|
|
switch itArg.kind {
|
|
case api.Kind("ReplicationController"):
|
|
configs[i] = baseConfig
|
|
case extensions.Kind("ReplicaSet"):
|
|
configs[i] = &testutils.ReplicaSetConfig{RCConfig: *baseConfig}
|
|
case extensions.Kind("Deployment"):
|
|
configs[i] = &testutils.DeploymentConfig{RCConfig: *baseConfig}
|
|
case batch.Kind("Job"):
|
|
configs[i] = &testutils.JobConfig{RCConfig: *baseConfig}
|
|
default:
|
|
framework.Failf("Unsupported kind: %v", itArg.kind)
|
|
}
|
|
}
|
|
|
|
// Single client is running out of http2 connections in delete phase, hence we need more.
|
|
clients, internalClients, scalesClients, err = createClients(2)
|
|
framework.ExpectNoError(err)
|
|
dConfig := DensityTestConfig{
|
|
ClientSets: clients,
|
|
InternalClientsets: internalClients,
|
|
ScaleClients: scalesClients,
|
|
Configs: configs,
|
|
PodCount: totalPods,
|
|
PollInterval: DensityPollInterval,
|
|
kind: itArg.kind,
|
|
SecretConfigs: secretConfigs,
|
|
ConfigMapConfigs: configMapConfigs,
|
|
}
|
|
|
|
for i := 0; i < itArg.daemonsPerNode; i++ {
|
|
dConfig.DaemonConfigs = append(dConfig.DaemonConfigs,
|
|
&testutils.DaemonConfig{
|
|
Client: f.ClientSet,
|
|
Name: fmt.Sprintf("density-daemon-%v", i),
|
|
Namespace: f.Namespace.Name,
|
|
LogFunc: framework.Logf,
|
|
})
|
|
}
|
|
e2eStartupTime = runDensityTest(dConfig, testPhaseDurations, &scheduleThroughputs)
|
|
defer cleanupDensityTest(dConfig, testPhaseDurations)
|
|
|
|
if itArg.runLatencyTest {
|
|
// Pick latencyPodsIterations so that:
|
|
// latencyPodsIterations * nodeCount >= MinPodStartupMeasurements.
|
|
latencyPodsIterations := (MinPodStartupMeasurements + nodeCount - 1) / nodeCount
|
|
By(fmt.Sprintf("Scheduling additional %d Pods to measure startup latencies", latencyPodsIterations*nodeCount))
|
|
|
|
createTimes := make(map[string]metav1.Time, 0)
|
|
nodeNames := make(map[string]string, 0)
|
|
scheduleTimes := make(map[string]metav1.Time, 0)
|
|
runTimes := make(map[string]metav1.Time, 0)
|
|
watchTimes := make(map[string]metav1.Time, 0)
|
|
|
|
var mutex sync.Mutex
|
|
checkPod := func(p *v1.Pod) {
|
|
mutex.Lock()
|
|
defer mutex.Unlock()
|
|
defer GinkgoRecover()
|
|
|
|
if p.Status.Phase == v1.PodRunning {
|
|
if _, found := watchTimes[p.Name]; !found {
|
|
watchTimes[p.Name] = metav1.Now()
|
|
createTimes[p.Name] = p.CreationTimestamp
|
|
nodeNames[p.Name] = p.Spec.NodeName
|
|
var startTime metav1.Time
|
|
for _, cs := range p.Status.ContainerStatuses {
|
|
if cs.State.Running != nil {
|
|
if startTime.Before(&cs.State.Running.StartedAt) {
|
|
startTime = cs.State.Running.StartedAt
|
|
}
|
|
}
|
|
}
|
|
if startTime != metav1.NewTime(time.Time{}) {
|
|
runTimes[p.Name] = startTime
|
|
} else {
|
|
framework.Failf("Pod %v is reported to be running, but none of its containers is", p.Name)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
additionalPodsPrefix = "density-latency-pod"
|
|
stopCh := make(chan struct{})
|
|
|
|
latencyPodStores := make([]cache.Store, len(namespaces))
|
|
for i := 0; i < len(namespaces); i++ {
|
|
nsName := namespaces[i].Name
|
|
latencyPodsStore, controller := cache.NewInformer(
|
|
&cache.ListWatch{
|
|
ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
|
|
options.LabelSelector = labels.SelectorFromSet(labels.Set{"type": additionalPodsPrefix}).String()
|
|
obj, err := c.CoreV1().Pods(nsName).List(options)
|
|
return runtime.Object(obj), err
|
|
},
|
|
WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
|
|
options.LabelSelector = labels.SelectorFromSet(labels.Set{"type": additionalPodsPrefix}).String()
|
|
return c.CoreV1().Pods(nsName).Watch(options)
|
|
},
|
|
},
|
|
&v1.Pod{},
|
|
0,
|
|
cache.ResourceEventHandlerFuncs{
|
|
AddFunc: func(obj interface{}) {
|
|
p, ok := obj.(*v1.Pod)
|
|
if !ok {
|
|
framework.Logf("Failed to cast observed object to *v1.Pod.")
|
|
}
|
|
Expect(ok).To(Equal(true))
|
|
go checkPod(p)
|
|
},
|
|
UpdateFunc: func(oldObj, newObj interface{}) {
|
|
p, ok := newObj.(*v1.Pod)
|
|
if !ok {
|
|
framework.Logf("Failed to cast observed object to *v1.Pod.")
|
|
}
|
|
Expect(ok).To(Equal(true))
|
|
go checkPod(p)
|
|
},
|
|
},
|
|
)
|
|
latencyPodStores[i] = latencyPodsStore
|
|
|
|
go controller.Run(stopCh)
|
|
}
|
|
for latencyPodsIteration := 0; latencyPodsIteration < latencyPodsIterations; latencyPodsIteration++ {
|
|
podIndexOffset := latencyPodsIteration * nodeCount
|
|
framework.Logf("Creating %d latency pods in range [%d, %d]", nodeCount, podIndexOffset+1, podIndexOffset+nodeCount)
|
|
|
|
watchTimesLen := len(watchTimes)
|
|
|
|
// Create some additional pods with throughput ~5 pods/sec.
|
|
latencyPodStartupPhase := testPhaseDurations.StartPhase(800+latencyPodsIteration*10, "latency pods creation")
|
|
defer latencyPodStartupPhase.End()
|
|
var wg sync.WaitGroup
|
|
wg.Add(nodeCount)
|
|
// Explicitly set requests here.
|
|
// Thanks to it we trigger increasing priority function by scheduling
|
|
// a pod to a node, which in turn will result in spreading latency pods
|
|
// more evenly between nodes.
|
|
cpuRequest := *resource.NewMilliQuantity(nodeCpuCapacity/5, resource.DecimalSI)
|
|
memRequest := *resource.NewQuantity(nodeMemCapacity/5, resource.DecimalSI)
|
|
if podsPerNode > 30 {
|
|
// This is to make them schedulable on high-density tests
|
|
// (e.g. 100 pods/node kubemark).
|
|
cpuRequest = *resource.NewMilliQuantity(0, resource.DecimalSI)
|
|
memRequest = *resource.NewQuantity(0, resource.DecimalSI)
|
|
}
|
|
rcNameToNsMap := map[string]string{}
|
|
for i := 1; i <= nodeCount; i++ {
|
|
name := additionalPodsPrefix + "-" + strconv.Itoa(podIndexOffset+i)
|
|
nsName := namespaces[i%len(namespaces)].Name
|
|
rcNameToNsMap[name] = nsName
|
|
go createRunningPodFromRC(&wg, c, name, nsName, imageutils.GetPauseImageName(), additionalPodsPrefix, cpuRequest, memRequest)
|
|
time.Sleep(200 * time.Millisecond)
|
|
}
|
|
wg.Wait()
|
|
latencyPodStartupPhase.End()
|
|
|
|
latencyMeasurementPhase := testPhaseDurations.StartPhase(801+latencyPodsIteration*10, "pod startup latencies measurement")
|
|
defer latencyMeasurementPhase.End()
|
|
By("Waiting for all Pods begin observed by the watch...")
|
|
waitTimeout := 10 * time.Minute
|
|
for start := time.Now(); len(watchTimes) < watchTimesLen+nodeCount; time.Sleep(10 * time.Second) {
|
|
if time.Since(start) < waitTimeout {
|
|
framework.Failf("Timeout reached waiting for all Pods being observed by the watch.")
|
|
}
|
|
}
|
|
|
|
nodeToLatencyPods := make(map[string]int)
|
|
for i := range latencyPodStores {
|
|
for _, item := range latencyPodStores[i].List() {
|
|
pod := item.(*v1.Pod)
|
|
nodeToLatencyPods[pod.Spec.NodeName]++
|
|
}
|
|
for node, count := range nodeToLatencyPods {
|
|
if count > 1 {
|
|
framework.Logf("%d latency pods scheduled on %s", count, node)
|
|
}
|
|
}
|
|
}
|
|
latencyMeasurementPhase.End()
|
|
|
|
By("Removing additional replication controllers")
|
|
podDeletionPhase := testPhaseDurations.StartPhase(802+latencyPodsIteration*10, "latency pods deletion")
|
|
defer podDeletionPhase.End()
|
|
deleteRC := func(i int) {
|
|
defer GinkgoRecover()
|
|
name := additionalPodsPrefix + "-" + strconv.Itoa(podIndexOffset+i+1)
|
|
framework.ExpectNoError(framework.DeleteRCAndWaitForGC(c, rcNameToNsMap[name], name))
|
|
}
|
|
workqueue.ParallelizeUntil(context.TODO(), 25, nodeCount, deleteRC)
|
|
podDeletionPhase.End()
|
|
}
|
|
close(stopCh)
|
|
|
|
for i := 0; i < len(namespaces); i++ {
|
|
nsName := namespaces[i].Name
|
|
selector := fields.Set{
|
|
"involvedObject.kind": "Pod",
|
|
"involvedObject.namespace": nsName,
|
|
"source": v1.DefaultSchedulerName,
|
|
}.AsSelector().String()
|
|
options := metav1.ListOptions{FieldSelector: selector}
|
|
schedEvents, err := c.CoreV1().Events(nsName).List(options)
|
|
framework.ExpectNoError(err)
|
|
for k := range createTimes {
|
|
for _, event := range schedEvents.Items {
|
|
if event.InvolvedObject.Name == k {
|
|
scheduleTimes[k] = event.FirstTimestamp
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
scheduleLag := make([]framework.PodLatencyData, 0)
|
|
startupLag := make([]framework.PodLatencyData, 0)
|
|
watchLag := make([]framework.PodLatencyData, 0)
|
|
schedToWatchLag := make([]framework.PodLatencyData, 0)
|
|
e2eLag := make([]framework.PodLatencyData, 0)
|
|
|
|
for name, create := range createTimes {
|
|
sched, ok := scheduleTimes[name]
|
|
if !ok {
|
|
framework.Logf("Failed to find schedule time for %v", name)
|
|
missingMeasurements++
|
|
}
|
|
run, ok := runTimes[name]
|
|
if !ok {
|
|
framework.Logf("Failed to find run time for %v", name)
|
|
missingMeasurements++
|
|
}
|
|
watch, ok := watchTimes[name]
|
|
if !ok {
|
|
framework.Logf("Failed to find watch time for %v", name)
|
|
missingMeasurements++
|
|
}
|
|
node, ok := nodeNames[name]
|
|
if !ok {
|
|
framework.Logf("Failed to find node for %v", name)
|
|
missingMeasurements++
|
|
}
|
|
|
|
scheduleLag = append(scheduleLag, framework.PodLatencyData{Name: name, Node: node, Latency: sched.Time.Sub(create.Time)})
|
|
startupLag = append(startupLag, framework.PodLatencyData{Name: name, Node: node, Latency: run.Time.Sub(sched.Time)})
|
|
watchLag = append(watchLag, framework.PodLatencyData{Name: name, Node: node, Latency: watch.Time.Sub(run.Time)})
|
|
schedToWatchLag = append(schedToWatchLag, framework.PodLatencyData{Name: name, Node: node, Latency: watch.Time.Sub(sched.Time)})
|
|
e2eLag = append(e2eLag, framework.PodLatencyData{Name: name, Node: node, Latency: watch.Time.Sub(create.Time)})
|
|
}
|
|
|
|
sort.Sort(framework.LatencySlice(scheduleLag))
|
|
sort.Sort(framework.LatencySlice(startupLag))
|
|
sort.Sort(framework.LatencySlice(watchLag))
|
|
sort.Sort(framework.LatencySlice(schedToWatchLag))
|
|
sort.Sort(framework.LatencySlice(e2eLag))
|
|
|
|
framework.PrintLatencies(scheduleLag, "worst create-to-schedule latencies")
|
|
framework.PrintLatencies(startupLag, "worst schedule-to-run latencies")
|
|
framework.PrintLatencies(watchLag, "worst run-to-watch latencies")
|
|
framework.PrintLatencies(schedToWatchLag, "worst schedule-to-watch latencies")
|
|
framework.PrintLatencies(e2eLag, "worst e2e latencies")
|
|
|
|
// Capture latency metrics related to pod-startup.
|
|
podStartupLatency := &framework.PodStartupLatency{
|
|
CreateToScheduleLatency: framework.ExtractLatencyMetrics(scheduleLag),
|
|
ScheduleToRunLatency: framework.ExtractLatencyMetrics(startupLag),
|
|
RunToWatchLatency: framework.ExtractLatencyMetrics(watchLag),
|
|
ScheduleToWatchLatency: framework.ExtractLatencyMetrics(schedToWatchLag),
|
|
E2ELatency: framework.ExtractLatencyMetrics(e2eLag),
|
|
}
|
|
f.TestSummaries = append(f.TestSummaries, podStartupLatency)
|
|
|
|
// Test whether e2e pod startup time is acceptable.
|
|
podStartupLatencyThreshold := framework.LatencyMetric{
|
|
Perc50: PodStartupLatencyThreshold,
|
|
Perc90: PodStartupLatencyThreshold,
|
|
Perc99: PodStartupLatencyThreshold,
|
|
}
|
|
framework.ExpectNoError(framework.VerifyLatencyWithinThreshold(podStartupLatencyThreshold, podStartupLatency.E2ELatency, "pod startup"))
|
|
|
|
framework.LogSuspiciousLatency(startupLag, e2eLag, nodeCount, c)
|
|
}
|
|
})
|
|
}
|
|
})
|
|
|
|
func createRunningPodFromRC(wg *sync.WaitGroup, c clientset.Interface, name, ns, image, podType string, cpuRequest, memRequest resource.Quantity) {
|
|
defer GinkgoRecover()
|
|
defer wg.Done()
|
|
labels := map[string]string{
|
|
"type": podType,
|
|
"name": name,
|
|
}
|
|
rc := &v1.ReplicationController{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: name,
|
|
Labels: labels,
|
|
},
|
|
Spec: v1.ReplicationControllerSpec{
|
|
Replicas: func(i int) *int32 { x := int32(i); return &x }(1),
|
|
Selector: labels,
|
|
Template: &v1.PodTemplateSpec{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Labels: labels,
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{
|
|
Name: name,
|
|
Image: image,
|
|
Resources: v1.ResourceRequirements{
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceCPU: cpuRequest,
|
|
v1.ResourceMemory: memRequest,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
DNSPolicy: v1.DNSDefault,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
framework.ExpectNoError(testutils.CreateRCWithRetries(c, ns, rc))
|
|
framework.ExpectNoError(framework.WaitForControlledPodsRunning(c, ns, name, api.Kind("ReplicationController")))
|
|
framework.Logf("Found pod '%s' running", name)
|
|
}
|