mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-08-06 02:34:03 +00:00
refactor runWorkloads
This commit is contained in:
YamasouA
parent
8f8c94a04d
commit
659804b765
@ -1450,6 +1450,40 @@ func stopCollectingMetrics(tCtx ktesting.TContext, collectorCtx ktesting.TContex
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return dataItems
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}
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type MetricsCollectionData struct {
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Collectors []testDataCollector
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// This needs a separate context and wait group because
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// the metrics collecting needs to be sure that the goroutines
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// are stopped.
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CollectorCtx ktesting.TContext
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CollectorWG *sync.WaitGroup
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// Disable error checking of the sampling interval length in the
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// throughput collector by default. When running benchmarks, report
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// it as test failure when samples are not taken regularly.
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ThroughputErrorMargin float64
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}
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type WorkloadState struct {
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DataItems []DataItem
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NextNodeIndex int
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// numPodsScheduledPerNamespace has all namespaces created in workload and the number of pods they (will) have.
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// All namespaces listed in numPodsScheduledPerNamespace will be cleaned up.
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NumPodsScheduledPerNamespace map[string]int
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}
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type SharedOperationData struct {
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// Additional informers needed for testing. The pod informer was
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// already created before (scheduler.NewInformerFactory) and the
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// factory was started for it (mustSetupCluster), therefore we don't
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// need to start again.
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PodInformer coreinformers.PodInformer
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MetricsData *MetricsCollectionData
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WorkloadState *WorkloadState
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TCtx ktesting.TContext
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WG sync.WaitGroup
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CancelFunc context.CancelFunc
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}
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func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFactory informers.SharedInformerFactory) []DataItem {
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b, benchmarking := tCtx.TB().(*testing.B)
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if benchmarking {
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@ -1463,9 +1497,6 @@ func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFact
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})
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}
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// Disable error checking of the sampling interval length in the
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// throughput collector by default. When running benchmarks, report
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// it as test failure when samples are not taken regularly.
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var throughputErrorMargin float64
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if benchmarking {
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// TODO: To prevent the perf-test failure, we increased the error margin, if still not enough
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@ -1473,12 +1504,6 @@ func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFact
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throughputErrorMargin = 30
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}
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// Additional informers needed for testing. The pod informer was
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// already created before (scheduler.NewInformerFactory) and the
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// factory was started for it (mustSetupCluster), therefore we don't
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// need to start again.
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podInformer := informerFactory.Core().V1().Pods()
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// Everything else started by this function gets stopped before it returns.
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tCtx = ktesting.WithCancel(tCtx)
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var wg sync.WaitGroup
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@ -1486,315 +1511,25 @@ func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFact
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defer tCtx.Cancel("workload is done")
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var dataItems []DataItem
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nextNodeIndex := 0
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// numPodsScheduledPerNamespace has all namespaces created in workload and the number of pods they (will) have.
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// All namespaces listed in numPodsScheduledPerNamespace will be cleaned up.
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numPodsScheduledPerNamespace := make(map[string]int)
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var collectors []testDataCollector
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// This needs a separate context and wait group because
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// the metrics collecting needs to be sure that the goroutines
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// are stopped.
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var collectorCtx ktesting.TContext
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var collectorWG sync.WaitGroup
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defer collectorWG.Wait()
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sharedOperationData := SharedOperationData{
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TCtx: tCtx,
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WG: wg,
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MetricsData: &MetricsCollectionData{
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CollectorWG: &sync.WaitGroup{},
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ThroughputErrorMargin: throughputErrorMargin,
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},
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WorkloadState: &WorkloadState{
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NumPodsScheduledPerNamespace: make(map[string]int),
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},
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PodInformer: informerFactory.Core().V1().Pods(),
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}
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for opIndex, op := range unrollWorkloadTemplate(tCtx, tc.WorkloadTemplate, w) {
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realOp, err := op.realOp.patchParams(w)
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if err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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select {
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case <-tCtx.Done():
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tCtx.Fatalf("op %d: %v", opIndex, context.Cause(tCtx))
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default:
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}
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switch concreteOp := realOp.(type) {
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case *createNodesOp:
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nodePreparer, err := getNodePreparer(fmt.Sprintf("node-%d-", opIndex), concreteOp, tCtx.Client())
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if err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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if err := nodePreparer.PrepareNodes(tCtx, nextNodeIndex); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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nextNodeIndex += concreteOp.Count
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case *createNamespacesOp:
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nsPreparer, err := newNamespacePreparer(tCtx, concreteOp)
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if err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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if err := nsPreparer.prepare(tCtx); err != nil {
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err2 := nsPreparer.cleanup(tCtx)
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if err2 != nil {
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err = fmt.Errorf("prepare: %v; cleanup: %v", err, err2)
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}
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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for _, n := range nsPreparer.namespaces() {
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if _, ok := numPodsScheduledPerNamespace[n]; ok {
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// this namespace has been already created.
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continue
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}
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numPodsScheduledPerNamespace[n] = 0
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}
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case *createPodsOp:
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var namespace string
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// define Pod's namespace automatically, and create that namespace.
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namespace = fmt.Sprintf("namespace-%d", opIndex)
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if concreteOp.Namespace != nil {
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namespace = *concreteOp.Namespace
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}
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createNamespaceIfNotPresent(tCtx, namespace, &numPodsScheduledPerNamespace)
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if concreteOp.PodTemplatePath == nil {
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concreteOp.PodTemplatePath = tc.DefaultPodTemplatePath
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}
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if concreteOp.CollectMetrics {
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if collectorCtx != nil {
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tCtx.Fatalf("op %d: Metrics collection is overlapping. Probably second collector was started before stopping a previous one", opIndex)
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}
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collectorCtx, collectors = startCollectingMetrics(tCtx, &collectorWG, podInformer, tc.MetricsCollectorConfig, throughputErrorMargin, opIndex, namespace, []string{namespace}, nil)
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defer collectorCtx.Cancel("cleaning up")
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}
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if err := createPodsRapidly(tCtx, namespace, concreteOp); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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switch {
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case concreteOp.SkipWaitToCompletion:
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// Only record those namespaces that may potentially require barriers
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// in the future.
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numPodsScheduledPerNamespace[namespace] += concreteOp.Count
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case concreteOp.SteadyState:
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if err := createPodsSteadily(tCtx, namespace, podInformer, concreteOp); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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default:
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if err := waitUntilPodsScheduledInNamespace(tCtx, podInformer, nil, namespace, concreteOp.Count); err != nil {
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tCtx.Fatalf("op %d: error in waiting for pods to get scheduled: %v", opIndex, err)
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}
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}
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if concreteOp.CollectMetrics {
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// CollectMetrics and SkipWaitToCompletion can never be true at the
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// same time, so if we're here, it means that all pods have been
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// scheduled.
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items := stopCollectingMetrics(tCtx, collectorCtx, &collectorWG, w.Threshold, *w.ThresholdMetricSelector, opIndex, collectors)
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dataItems = append(dataItems, items...)
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collectorCtx = nil
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}
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case *deletePodsOp:
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labelSelector := labels.ValidatedSetSelector(concreteOp.LabelSelector)
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podsToDelete, err := podInformer.Lister().Pods(concreteOp.Namespace).List(labelSelector)
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if err != nil {
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tCtx.Fatalf("op %d: error in listing pods in the namespace %s: %v", opIndex, concreteOp.Namespace, err)
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}
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deletePods := func(opIndex int) {
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if concreteOp.DeletePodsPerSecond > 0 {
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ticker := time.NewTicker(time.Second / time.Duration(concreteOp.DeletePodsPerSecond))
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defer ticker.Stop()
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for i := 0; i < len(podsToDelete); i++ {
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select {
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case <-ticker.C:
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if err := tCtx.Client().CoreV1().Pods(concreteOp.Namespace).Delete(tCtx, podsToDelete[i].Name, metav1.DeleteOptions{}); err != nil {
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if errors.Is(err, context.Canceled) {
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return
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}
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tCtx.Errorf("op %d: unable to delete pod %v: %v", opIndex, podsToDelete[i].Name, err)
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}
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case <-tCtx.Done():
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return
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}
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}
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return
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}
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listOpts := metav1.ListOptions{
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LabelSelector: labelSelector.String(),
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}
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if err := tCtx.Client().CoreV1().Pods(concreteOp.Namespace).DeleteCollection(tCtx, metav1.DeleteOptions{}, listOpts); err != nil {
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if errors.Is(err, context.Canceled) {
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return
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}
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tCtx.Errorf("op %d: unable to delete pods in namespace %v: %v", opIndex, concreteOp.Namespace, err)
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}
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}
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if concreteOp.SkipWaitToCompletion {
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wg.Add(1)
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go func(opIndex int) {
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defer wg.Done()
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deletePods(opIndex)
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}(opIndex)
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} else {
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deletePods(opIndex)
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}
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case *churnOp:
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var namespace string
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if concreteOp.Namespace != nil {
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namespace = *concreteOp.Namespace
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} else {
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namespace = fmt.Sprintf("namespace-%d", opIndex)
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}
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restMapper := restmapper.NewDeferredDiscoveryRESTMapper(cacheddiscovery.NewMemCacheClient(tCtx.Client().Discovery()))
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// Ensure the namespace exists.
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nsObj := &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}}
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if _, err := tCtx.Client().CoreV1().Namespaces().Create(tCtx, nsObj, metav1.CreateOptions{}); err != nil && !apierrors.IsAlreadyExists(err) {
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tCtx.Fatalf("op %d: unable to create namespace %v: %v", opIndex, namespace, err)
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}
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var churnFns []func(name string) string
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for i, path := range concreteOp.TemplatePaths {
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unstructuredObj, gvk, err := getUnstructuredFromFile(path)
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if err != nil {
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tCtx.Fatalf("op %d: unable to parse the %v-th template path: %v", opIndex, i, err)
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}
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// Obtain GVR.
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mapping, err := restMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
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if err != nil {
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tCtx.Fatalf("op %d: unable to find GVR for %v: %v", opIndex, gvk, err)
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}
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gvr := mapping.Resource
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// Distinguish cluster-scoped with namespaced API objects.
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var dynRes dynamic.ResourceInterface
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if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
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dynRes = tCtx.Dynamic().Resource(gvr).Namespace(namespace)
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} else {
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dynRes = tCtx.Dynamic().Resource(gvr)
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}
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churnFns = append(churnFns, func(name string) string {
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if name != "" {
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if err := dynRes.Delete(tCtx, name, metav1.DeleteOptions{}); err != nil && !errors.Is(err, context.Canceled) {
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tCtx.Errorf("op %d: unable to delete %v: %v", opIndex, name, err)
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}
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return ""
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}
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live, err := dynRes.Create(tCtx, unstructuredObj, metav1.CreateOptions{})
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if err != nil {
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return ""
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}
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return live.GetName()
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})
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}
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var interval int64 = 500
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if concreteOp.IntervalMilliseconds != 0 {
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interval = concreteOp.IntervalMilliseconds
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}
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ticker := time.NewTicker(time.Duration(interval) * time.Millisecond)
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defer ticker.Stop()
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switch concreteOp.Mode {
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case Create:
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wg.Add(1)
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go func() {
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defer wg.Done()
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count, threshold := 0, concreteOp.Number
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if threshold == 0 {
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threshold = math.MaxInt32
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}
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for count < threshold {
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select {
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case <-ticker.C:
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for i := range churnFns {
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churnFns[i]("")
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}
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count++
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case <-tCtx.Done():
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return
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}
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}
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}()
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case Recreate:
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wg.Add(1)
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go func() {
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defer wg.Done()
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retVals := make([][]string, len(churnFns))
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// For each churn function, instantiate a slice of strings with length "concreteOp.Number".
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for i := range retVals {
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retVals[i] = make([]string, concreteOp.Number)
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}
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count := 0
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for {
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select {
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case <-ticker.C:
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for i := range churnFns {
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retVals[i][count%concreteOp.Number] = churnFns[i](retVals[i][count%concreteOp.Number])
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}
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count++
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case <-tCtx.Done():
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return
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}
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}
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}()
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}
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case *barrierOp:
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for _, namespace := range concreteOp.Namespaces {
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if _, ok := numPodsScheduledPerNamespace[namespace]; !ok {
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tCtx.Fatalf("op %d: unknown namespace %s", opIndex, namespace)
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}
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}
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switch concreteOp.StageRequirement {
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case Attempted:
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if err := waitUntilPodsAttempted(tCtx, podInformer, concreteOp.LabelSelector, concreteOp.Namespaces, numPodsScheduledPerNamespace); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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case Scheduled:
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// Default should be treated like "Scheduled", so handling both in the same way.
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fallthrough
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default:
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if err := waitUntilPodsScheduled(tCtx, podInformer, concreteOp.LabelSelector, concreteOp.Namespaces, numPodsScheduledPerNamespace); err != nil {
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tCtx.Fatalf("op %d: %v", opIndex, err)
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}
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// At the end of the barrier, we can be sure that there are no pods
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// pending scheduling in the namespaces that we just blocked on.
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if len(concreteOp.Namespaces) == 0 {
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numPodsScheduledPerNamespace = make(map[string]int)
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} else {
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for _, namespace := range concreteOp.Namespaces {
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delete(numPodsScheduledPerNamespace, namespace)
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}
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}
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}
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case *sleepOp:
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select {
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case <-tCtx.Done():
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case <-time.After(concreteOp.Duration.Duration):
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}
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case *startCollectingMetricsOp:
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if collectorCtx != nil {
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tCtx.Fatalf("op %d: Metrics collection is overlapping. Probably second collector was started before stopping a previous one", opIndex)
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}
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collectorCtx, collectors = startCollectingMetrics(tCtx, &collectorWG, podInformer, tc.MetricsCollectorConfig, throughputErrorMargin, opIndex, concreteOp.Name, concreteOp.Namespaces, concreteOp.LabelSelector)
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defer collectorCtx.Cancel("cleaning up")
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case *stopCollectingMetricsOp:
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items := stopCollectingMetrics(tCtx, collectorCtx, &collectorWG, w.Threshold, *w.ThresholdMetricSelector, opIndex, collectors)
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dataItems = append(dataItems, items...)
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collectorCtx = nil
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default:
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runable, ok := concreteOp.(runnableOp)
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if !ok {
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tCtx.Fatalf("op %d: invalid op %v", opIndex, concreteOp)
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}
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for _, namespace := range runable.requiredNamespaces() {
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createNamespaceIfNotPresent(tCtx, namespace, &numPodsScheduledPerNamespace)
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}
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runable.run(tCtx)
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}
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runOperation(tc, opIndex, op, w, &sharedOperationData)
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}
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// check unused params and inform users
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@ -1808,6 +1543,336 @@ func runWorkload(tCtx ktesting.TContext, tc *testCase, w *workload, informerFact
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return dataItems
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}
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func runCreateNodesOp(opIndex int, concreteOp *createNodesOp, sharedOperationData *SharedOperationData) {
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nodePreparer, err := getNodePreparer(fmt.Sprintf("node-%d-", opIndex), concreteOp, sharedOperationData.TCtx.Client())
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if err != nil {
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sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
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}
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if err := nodePreparer.PrepareNodes(sharedOperationData.TCtx, sharedOperationData.WorkloadState.NextNodeIndex); err != nil {
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sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
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}
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sharedOperationData.WorkloadState.NextNodeIndex += concreteOp.Count
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}
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func runCreateNamespacesOp(opIndex int, concreteOp *createNamespacesOp, sharedOperationData *SharedOperationData) {
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nsPreparer, err := newNamespacePreparer(sharedOperationData.TCtx, concreteOp)
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if err != nil {
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sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
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}
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if err := nsPreparer.prepare(sharedOperationData.TCtx); err != nil {
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err2 := nsPreparer.cleanup(sharedOperationData.TCtx)
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if err2 != nil {
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err = fmt.Errorf("prepare: %v; cleanup: %v", err, err2)
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}
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sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
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}
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for _, n := range nsPreparer.namespaces() {
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if _, ok := sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace[n]; ok {
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// this namespace has been already created.
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continue
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}
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sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace[n] = 0
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}
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}
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func runCreatePodsOp(tc *testCase, w *workload, opIndex int, concreteOp *createPodsOp, sharedOperationData *SharedOperationData) {
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var namespace string
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// define Pod's namespace automatically, and create that namespace.
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namespace = fmt.Sprintf("namespace-%d", opIndex)
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if concreteOp.Namespace != nil {
|
||||
namespace = *concreteOp.Namespace
|
||||
}
|
||||
createNamespaceIfNotPresent(sharedOperationData.TCtx, namespace, &sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace)
|
||||
if concreteOp.PodTemplatePath == nil {
|
||||
concreteOp.PodTemplatePath = tc.DefaultPodTemplatePath
|
||||
}
|
||||
|
||||
if concreteOp.CollectMetrics {
|
||||
if sharedOperationData.MetricsData.CollectorCtx != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: Metrics collection is overlapping. Probably second collector was started before stopping a previous one", opIndex)
|
||||
}
|
||||
sharedOperationData.MetricsData.CollectorCtx, sharedOperationData.MetricsData.Collectors = startCollectingMetrics(sharedOperationData.TCtx, sharedOperationData.MetricsData.CollectorWG, sharedOperationData.PodInformer, tc.MetricsCollectorConfig, sharedOperationData.MetricsData.ThroughputErrorMargin, opIndex, namespace, []string{namespace}, nil)
|
||||
defer sharedOperationData.MetricsData.CollectorCtx.Cancel("cleaning up")
|
||||
}
|
||||
if err := createPodsRapidly(sharedOperationData.TCtx, namespace, concreteOp); err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
|
||||
}
|
||||
switch {
|
||||
case concreteOp.SkipWaitToCompletion:
|
||||
// Only record those namespaces that may potentially require barriers
|
||||
// in the future.
|
||||
sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace[namespace] += concreteOp.Count
|
||||
case concreteOp.SteadyState:
|
||||
if err := createPodsSteadily(sharedOperationData.TCtx, namespace, sharedOperationData.PodInformer, concreteOp); err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
|
||||
}
|
||||
default:
|
||||
if err := waitUntilPodsScheduledInNamespace(sharedOperationData.TCtx, sharedOperationData.PodInformer, nil, namespace, concreteOp.Count); err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: error in waiting for pods to get scheduled: %v", opIndex, err)
|
||||
}
|
||||
}
|
||||
if concreteOp.CollectMetrics {
|
||||
// CollectMetrics and SkipWaitToCompletion can never be true at the
|
||||
// same time, so if we're here, it means that all pods have been
|
||||
// scheduled.
|
||||
items := stopCollectingMetrics(sharedOperationData.TCtx, sharedOperationData.MetricsData.CollectorCtx, sharedOperationData.MetricsData.CollectorWG, w.Threshold, *w.ThresholdMetricSelector, opIndex, sharedOperationData.MetricsData.Collectors)
|
||||
sharedOperationData.WorkloadState.DataItems = append(sharedOperationData.WorkloadState.DataItems, items...)
|
||||
sharedOperationData.MetricsData.CollectorCtx = nil
|
||||
}
|
||||
}
|
||||
|
||||
func runDeletePodsOp(opIndex int, concreteOp *deletePodsOp, sharedOperationData *SharedOperationData) {
|
||||
labelSelector := labels.ValidatedSetSelector(concreteOp.LabelSelector)
|
||||
|
||||
podsToDelete, err := sharedOperationData.PodInformer.Lister().Pods(concreteOp.Namespace).List(labelSelector)
|
||||
if err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: error in listing pods in the namespace %s: %v", opIndex, concreteOp.Namespace, err)
|
||||
}
|
||||
|
||||
deletePods := func(opIndex int) {
|
||||
if concreteOp.DeletePodsPerSecond > 0 {
|
||||
ticker := time.NewTicker(time.Second / time.Duration(concreteOp.DeletePodsPerSecond))
|
||||
defer ticker.Stop()
|
||||
|
||||
for i := 0; i < len(podsToDelete); i++ {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
if err := sharedOperationData.TCtx.Client().CoreV1().Pods(concreteOp.Namespace).Delete(sharedOperationData.TCtx, podsToDelete[i].Name, metav1.DeleteOptions{}); err != nil {
|
||||
if errors.Is(err, context.Canceled) {
|
||||
return
|
||||
}
|
||||
sharedOperationData.TCtx.Errorf("op %d: unable to delete pod %v: %v", opIndex, podsToDelete[i].Name, err)
|
||||
}
|
||||
case <-sharedOperationData.TCtx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
listOpts := metav1.ListOptions{
|
||||
LabelSelector: labelSelector.String(),
|
||||
}
|
||||
if err := sharedOperationData.TCtx.Client().CoreV1().Pods(concreteOp.Namespace).DeleteCollection(sharedOperationData.TCtx, metav1.DeleteOptions{}, listOpts); err != nil {
|
||||
if errors.Is(err, context.Canceled) {
|
||||
return
|
||||
}
|
||||
sharedOperationData.TCtx.Errorf("op %d: unable to delete pods in namespace %v: %v", opIndex, concreteOp.Namespace, err)
|
||||
}
|
||||
}
|
||||
|
||||
if concreteOp.SkipWaitToCompletion {
|
||||
sharedOperationData.WG.Add(1)
|
||||
go func(opIndex int) {
|
||||
defer sharedOperationData.WG.Done()
|
||||
deletePods(opIndex)
|
||||
}(opIndex)
|
||||
} else {
|
||||
deletePods(opIndex)
|
||||
}
|
||||
}
|
||||
|
||||
func runChurnOp(opIndex int, concreteOp *churnOp, sharedOperationData *SharedOperationData) {
|
||||
var namespace string
|
||||
if concreteOp.Namespace != nil {
|
||||
namespace = *concreteOp.Namespace
|
||||
} else {
|
||||
namespace = fmt.Sprintf("namespace-%d", opIndex)
|
||||
}
|
||||
restMapper := restmapper.NewDeferredDiscoveryRESTMapper(cacheddiscovery.NewMemCacheClient(sharedOperationData.TCtx.Client().Discovery()))
|
||||
// Ensure the namespace exists.
|
||||
nsObj := &v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}}
|
||||
if _, err := sharedOperationData.TCtx.Client().CoreV1().Namespaces().Create(sharedOperationData.TCtx, nsObj, metav1.CreateOptions{}); err != nil && !apierrors.IsAlreadyExists(err) {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: unable to create namespace %v: %v", opIndex, namespace, err)
|
||||
}
|
||||
|
||||
var churnFns []func(name string) string
|
||||
|
||||
for i, path := range concreteOp.TemplatePaths {
|
||||
unstructuredObj, gvk, err := getUnstructuredFromFile(path)
|
||||
if err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: unable to parse the %v-th template path: %v", opIndex, i, err)
|
||||
}
|
||||
// Obtain GVR.
|
||||
mapping, err := restMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
|
||||
if err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: unable to find GVR for %v: %v", opIndex, gvk, err)
|
||||
}
|
||||
gvr := mapping.Resource
|
||||
// Distinguish cluster-scoped with namespaced API objects.
|
||||
var dynRes dynamic.ResourceInterface
|
||||
if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
|
||||
dynRes = sharedOperationData.TCtx.Dynamic().Resource(gvr).Namespace(namespace)
|
||||
} else {
|
||||
dynRes = sharedOperationData.TCtx.Dynamic().Resource(gvr)
|
||||
}
|
||||
|
||||
churnFns = append(churnFns, func(name string) string {
|
||||
if name != "" {
|
||||
if err := dynRes.Delete(sharedOperationData.TCtx, name, metav1.DeleteOptions{}); err != nil && !errors.Is(err, context.Canceled) {
|
||||
sharedOperationData.TCtx.Errorf("op %d: unable to delete %v: %v", opIndex, name, err)
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
live, err := dynRes.Create(sharedOperationData.TCtx, unstructuredObj, metav1.CreateOptions{})
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
return live.GetName()
|
||||
})
|
||||
}
|
||||
|
||||
var interval int64 = 500
|
||||
if concreteOp.IntervalMilliseconds != 0 {
|
||||
interval = concreteOp.IntervalMilliseconds
|
||||
}
|
||||
ticker := time.NewTicker(time.Duration(interval) * time.Millisecond)
|
||||
defer ticker.Stop()
|
||||
|
||||
switch concreteOp.Mode {
|
||||
case Create:
|
||||
sharedOperationData.WG.Add(1)
|
||||
go func() {
|
||||
defer sharedOperationData.WG.Done()
|
||||
count, threshold := 0, concreteOp.Number
|
||||
if threshold == 0 {
|
||||
threshold = math.MaxInt32
|
||||
}
|
||||
for count < threshold {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
for i := range churnFns {
|
||||
churnFns[i]("")
|
||||
}
|
||||
count++
|
||||
case <-sharedOperationData.TCtx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
}()
|
||||
case Recreate:
|
||||
sharedOperationData.WG.Add(1)
|
||||
go func() {
|
||||
defer sharedOperationData.WG.Done()
|
||||
retVals := make([][]string, len(churnFns))
|
||||
// For each churn function, instantiate a slice of strings with length "concreteOp.Number".
|
||||
for i := range retVals {
|
||||
retVals[i] = make([]string, concreteOp.Number)
|
||||
}
|
||||
|
||||
count := 0
|
||||
for {
|
||||
select {
|
||||
case <-ticker.C:
|
||||
for i := range churnFns {
|
||||
retVals[i][count%concreteOp.Number] = churnFns[i](retVals[i][count%concreteOp.Number])
|
||||
}
|
||||
count++
|
||||
case <-sharedOperationData.TCtx.Done():
|
||||
return
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
}
|
||||
|
||||
func runBarrierOp(opIndex int, concreteOp *barrierOp, sharedOperationData *SharedOperationData) {
|
||||
for _, namespace := range concreteOp.Namespaces {
|
||||
if _, ok := sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace[namespace]; !ok {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: unknown namespace %s", opIndex, namespace)
|
||||
}
|
||||
}
|
||||
switch concreteOp.StageRequirement {
|
||||
case Attempted:
|
||||
if err := waitUntilPodsAttempted(sharedOperationData.TCtx, sharedOperationData.PodInformer, concreteOp.LabelSelector, concreteOp.Namespaces, sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace); err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
|
||||
}
|
||||
case Scheduled:
|
||||
// Default should be treated like "Scheduled", so handling both in the same way.
|
||||
fallthrough
|
||||
default:
|
||||
if err := waitUntilPodsScheduled(sharedOperationData.TCtx, sharedOperationData.PodInformer, concreteOp.LabelSelector, concreteOp.Namespaces, sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace); err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
|
||||
}
|
||||
// At the end of the barrier, we can be sure that there are no pods
|
||||
// pending scheduling in the namespaces that we just blocked on.
|
||||
if len(concreteOp.Namespaces) == 0 {
|
||||
sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace = make(map[string]int)
|
||||
} else {
|
||||
for _, namespace := range concreteOp.Namespaces {
|
||||
delete(sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace, namespace)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func runSleepOp(concreteOp *sleepOp, sharedOperationData *SharedOperationData) {
|
||||
select {
|
||||
case <-sharedOperationData.TCtx.Done():
|
||||
case <-time.After(concreteOp.Duration.Duration):
|
||||
}
|
||||
}
|
||||
|
||||
func runStartCollectingMetricsOp(opIndex int, tc *testCase, concreteOp *startCollectingMetricsOp, sharedOperationData *SharedOperationData) {
|
||||
if sharedOperationData.MetricsData.CollectorCtx != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: Metrics collection is overlapping. Probably second collector was started before stopping a previous one", opIndex)
|
||||
}
|
||||
sharedOperationData.MetricsData.CollectorCtx, sharedOperationData.MetricsData.Collectors = startCollectingMetrics(sharedOperationData.TCtx, sharedOperationData.MetricsData.CollectorWG, sharedOperationData.PodInformer, tc.MetricsCollectorConfig, sharedOperationData.MetricsData.ThroughputErrorMargin, opIndex, concreteOp.Name, concreteOp.Namespaces, concreteOp.LabelSelector)
|
||||
|
||||
defer sharedOperationData.MetricsData.CollectorCtx.Cancel("cleaning up")
|
||||
}
|
||||
|
||||
func runStopCollectingMetricsOp(opIndex int, w *workload, sharedOperationData *SharedOperationData) {
|
||||
items := stopCollectingMetrics(sharedOperationData.TCtx, sharedOperationData.MetricsData.CollectorCtx, sharedOperationData.MetricsData.CollectorWG, w.Threshold, *w.ThresholdMetricSelector, opIndex, sharedOperationData.MetricsData.Collectors)
|
||||
sharedOperationData.WorkloadState.DataItems = append(sharedOperationData.WorkloadState.DataItems, items...)
|
||||
sharedOperationData.MetricsData.CollectorCtx = nil
|
||||
}
|
||||
|
||||
func runDefault(opIndex int, concreteOp realOp, sharedOperationData *SharedOperationData) {
|
||||
runable, ok := concreteOp.(runnableOp)
|
||||
if !ok {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: invalid op %v", opIndex, concreteOp)
|
||||
}
|
||||
for _, namespace := range runable.requiredNamespaces() {
|
||||
createNamespaceIfNotPresent(sharedOperationData.TCtx, namespace, &sharedOperationData.WorkloadState.NumPodsScheduledPerNamespace)
|
||||
}
|
||||
runable.run(sharedOperationData.TCtx)
|
||||
}
|
||||
|
||||
func runOperation(tc *testCase, opIndex int, op op, w *workload, sharedOperationData *SharedOperationData) {
|
||||
realOp, err := op.realOp.patchParams(w)
|
||||
if err != nil {
|
||||
sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, err)
|
||||
}
|
||||
select {
|
||||
case <-sharedOperationData.TCtx.Done():
|
||||
sharedOperationData.TCtx.Fatalf("op %d: %v", opIndex, context.Cause(sharedOperationData.TCtx))
|
||||
default:
|
||||
}
|
||||
switch concreteOp := realOp.(type) {
|
||||
case *createNodesOp:
|
||||
runCreateNodesOp(opIndex, concreteOp, sharedOperationData)
|
||||
case *createNamespacesOp:
|
||||
runCreateNamespacesOp(opIndex, concreteOp, sharedOperationData)
|
||||
case *createPodsOp:
|
||||
runCreatePodsOp(tc, w, opIndex, concreteOp, sharedOperationData)
|
||||
case *deletePodsOp:
|
||||
runDeletePodsOp(opIndex, concreteOp, sharedOperationData)
|
||||
case *churnOp:
|
||||
runChurnOp(opIndex, concreteOp, sharedOperationData)
|
||||
case *barrierOp:
|
||||
runBarrierOp(opIndex, concreteOp, sharedOperationData)
|
||||
case *sleepOp:
|
||||
runSleepOp(concreteOp, sharedOperationData)
|
||||
case *startCollectingMetricsOp:
|
||||
runStartCollectingMetricsOp(opIndex, tc, concreteOp, sharedOperationData)
|
||||
case *stopCollectingMetricsOp:
|
||||
runStopCollectingMetricsOp(opIndex, w, sharedOperationData)
|
||||
default:
|
||||
runDefault(opIndex, concreteOp, sharedOperationData)
|
||||
}
|
||||
}
|
||||
|
||||
func createNamespaceIfNotPresent(tCtx ktesting.TContext, namespace string, podsPerNamespace *map[string]int) {
|
||||
if _, ok := (*podsPerNamespace)[namespace]; !ok {
|
||||
// The namespace has not created yet.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user