dd9de90b0a
note that we don't change the behaviour of kubectl. For example it won't scale new resources. That's the end goal. The first step is to retrofit existing code to use the generic scaler.
693 lines
26 KiB
Go
693 lines
26 KiB
Go
/*
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Copyright 2015 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 scalability
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import (
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"fmt"
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"math"
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"math/rand"
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"net"
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"net/http"
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"os"
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"strconv"
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"sync"
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"time"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/util/intstr"
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utilnet "k8s.io/apimachinery/pkg/util/net"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/discovery"
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cacheddiscovery "k8s.io/client-go/discovery/cached"
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clientset "k8s.io/client-go/kubernetes"
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restclient "k8s.io/client-go/rest"
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scaleclient "k8s.io/client-go/scale"
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"k8s.io/client-go/transport"
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"k8s.io/client-go/util/workqueue"
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"k8s.io/kubernetes/pkg/apis/batch"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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"k8s.io/kubernetes/test/e2e/framework"
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"k8s.io/kubernetes/test/e2e/framework/timer"
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testutils "k8s.io/kubernetes/test/utils"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"k8s.io/client-go/dynamic"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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)
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const (
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smallGroupSize = 5
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mediumGroupSize = 30
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bigGroupSize = 250
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smallGroupName = "load-small"
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mediumGroupName = "load-medium"
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bigGroupName = "load-big"
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// We start RCs/Services/pods/... in different namespace in this test.
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// nodeCountPerNamespace determines how many namespaces we will be using
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// depending on the number of nodes in the underlying cluster.
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nodeCountPerNamespace = 100
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// How many threads will be used to create/delete services during this test.
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serviceOperationsParallelism = 1
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svcLabelKey = "svc-label"
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)
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var randomKind = schema.GroupKind{Kind: "Random"}
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var knownKinds = []schema.GroupKind{
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api.Kind("ReplicationController"),
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extensions.Kind("Deployment"),
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// TODO: uncomment when Jobs are fixed: #38497
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//batch.Kind("Job"),
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extensions.Kind("ReplicaSet"),
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}
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// This test suite can take a long time to run, so by default it is added to
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// the ginkgo.skip list (see driver.go).
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// To run this suite you must explicitly ask for it by setting the
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// -t/--test flag or ginkgo.focus flag.
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var _ = SIGDescribe("Load capacity", func() {
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var clientset clientset.Interface
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var nodeCount int
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var ns string
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var configs []testutils.RunObjectConfig
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var secretConfigs []*testutils.SecretConfig
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var configMapConfigs []*testutils.ConfigMapConfig
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testCaseBaseName := "load"
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var testPhaseDurations *timer.TestPhaseTimer
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// Gathers metrics before teardown
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// TODO add flag that allows to skip cleanup on failure
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AfterEach(func() {
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// Verify latency metrics
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highLatencyRequests, metrics, err := framework.HighLatencyRequests(clientset, nodeCount)
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framework.ExpectNoError(err)
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if err == nil {
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summaries := make([]framework.TestDataSummary, 0, 2)
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summaries = append(summaries, metrics)
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summaries = append(summaries, testPhaseDurations)
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framework.PrintSummaries(summaries, testCaseBaseName)
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Expect(highLatencyRequests).NotTo(BeNumerically(">", 0), "There should be no high-latency requests")
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}
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})
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// We assume a default throughput of 10 pods/second throughput.
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// We may want to revisit it in the future.
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// However, this can be overriden by LOAD_TEST_THROUGHPUT env var.
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throughput := 10
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if throughputEnv := os.Getenv("LOAD_TEST_THROUGHPUT"); throughputEnv != "" {
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if newThroughput, err := strconv.Atoi(throughputEnv); err == nil {
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throughput = newThroughput
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}
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}
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// Explicitly put here, to delete namespace at the end of the test
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// (after measuring latency metrics, etc.).
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options := framework.FrameworkOptions{
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ClientQPS: float32(math.Max(50.0, float64(2*throughput))),
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ClientBurst: int(math.Max(100.0, float64(4*throughput))),
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}
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f := framework.NewFramework(testCaseBaseName, options, nil)
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f.NamespaceDeletionTimeout = time.Hour
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BeforeEach(func() {
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testPhaseDurations = timer.NewTestPhaseTimer()
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clientset = f.ClientSet
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ns = f.Namespace.Name
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nodes := framework.GetReadySchedulableNodesOrDie(clientset)
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nodeCount = len(nodes.Items)
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Expect(nodeCount).NotTo(BeZero())
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// Terminating a namespace (deleting the remaining objects from it - which
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// generally means events) can affect the current run. Thus we wait for all
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// terminating namespace to be finally deleted before starting this test.
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err := framework.CheckTestingNSDeletedExcept(clientset, ns)
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framework.ExpectNoError(err)
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framework.ExpectNoError(framework.ResetMetrics(clientset))
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})
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type Load struct {
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podsPerNode int
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image string
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command []string
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// What kind of resource we want to create
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kind schema.GroupKind
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services bool
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secretsPerPod int
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configMapsPerPod int
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daemonsPerNode int
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}
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loadTests := []Load{
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// The container will consume 1 cpu and 512mb of memory.
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{podsPerNode: 3, image: "jess/stress", command: []string{"stress", "-c", "1", "-m", "2"}, kind: api.Kind("ReplicationController")},
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: api.Kind("ReplicationController")},
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// Tests for other resource types
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: extensions.Kind("Deployment")},
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: batch.Kind("Job")},
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// Test scheduling when daemons are preset
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: api.Kind("ReplicationController"), daemonsPerNode: 2},
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// Test with secrets
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: extensions.Kind("Deployment"), secretsPerPod: 2},
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// Test with configmaps
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: extensions.Kind("Deployment"), configMapsPerPod: 2},
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// Special test case which randomizes created resources
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{podsPerNode: 30, image: framework.ServeHostnameImage, kind: randomKind},
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}
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for _, testArg := range loadTests {
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feature := "ManualPerformance"
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if testArg.podsPerNode == 30 && testArg.kind == api.Kind("ReplicationController") && testArg.daemonsPerNode == 0 && testArg.secretsPerPod == 0 && testArg.configMapsPerPod == 0 {
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feature = "Performance"
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}
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name := fmt.Sprintf("[Feature:%s] should be able to handle %v pods per node %v with %v secrets, %v configmaps and %v daemons",
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feature,
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testArg.podsPerNode,
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testArg.kind,
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testArg.secretsPerPod,
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testArg.configMapsPerPod,
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testArg.daemonsPerNode,
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)
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itArg := testArg
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itArg.services = os.Getenv("CREATE_SERVICES") != "false"
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It(name, func() {
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// Create a number of namespaces.
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namespaceCount := (nodeCount + nodeCountPerNamespace - 1) / nodeCountPerNamespace
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namespaces, err := CreateNamespaces(f, namespaceCount, fmt.Sprintf("load-%v-nodepods", itArg.podsPerNode), testPhaseDurations.StartPhase(110, "namespace creation"))
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framework.ExpectNoError(err)
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totalPods := (itArg.podsPerNode - itArg.daemonsPerNode) * nodeCount
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configs, secretConfigs, configMapConfigs = generateConfigs(totalPods, itArg.image, itArg.command, namespaces, itArg.kind, itArg.secretsPerPod, itArg.configMapsPerPod)
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serviceCreationPhase := testPhaseDurations.StartPhase(120, "services creation")
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defer serviceCreationPhase.End()
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if itArg.services {
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framework.Logf("Creating services")
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services := generateServicesForConfigs(configs)
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createService := func(i int) {
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defer GinkgoRecover()
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_, err := clientset.CoreV1().Services(services[i].Namespace).Create(services[i])
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framework.ExpectNoError(err)
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}
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workqueue.Parallelize(serviceOperationsParallelism, len(services), createService)
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framework.Logf("%v Services created.", len(services))
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defer func(services []*v1.Service) {
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serviceCleanupPhase := testPhaseDurations.StartPhase(800, "services deletion")
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defer serviceCleanupPhase.End()
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framework.Logf("Starting to delete services...")
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deleteService := func(i int) {
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defer GinkgoRecover()
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err := clientset.CoreV1().Services(services[i].Namespace).Delete(services[i].Name, nil)
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framework.ExpectNoError(err)
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}
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workqueue.Parallelize(serviceOperationsParallelism, len(services), deleteService)
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framework.Logf("Services deleted")
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}(services)
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} else {
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framework.Logf("Skipping service creation")
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}
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serviceCreationPhase.End()
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// Create all secrets.
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secretsCreationPhase := testPhaseDurations.StartPhase(130, "secrets creation")
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defer secretsCreationPhase.End()
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for i := range secretConfigs {
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secretConfigs[i].Run()
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defer secretConfigs[i].Stop()
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}
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secretsCreationPhase.End()
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// Create all configmaps.
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configMapsCreationPhase := testPhaseDurations.StartPhase(140, "configmaps creation")
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defer configMapsCreationPhase.End()
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for i := range configMapConfigs {
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configMapConfigs[i].Run()
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defer configMapConfigs[i].Stop()
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}
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configMapsCreationPhase.End()
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// StartDaemon if needed
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daemonSetCreationPhase := testPhaseDurations.StartPhase(150, "daemonsets creation")
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defer daemonSetCreationPhase.End()
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for i := 0; i < itArg.daemonsPerNode; i++ {
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daemonName := fmt.Sprintf("load-daemon-%v", i)
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daemonConfig := &testutils.DaemonConfig{
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Client: f.ClientSet,
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Name: daemonName,
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Namespace: f.Namespace.Name,
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LogFunc: framework.Logf,
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}
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daemonConfig.Run()
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defer func(config *testutils.DaemonConfig) {
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framework.ExpectNoError(framework.DeleteResourceAndPods(
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f.ClientSet,
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f.InternalClientset,
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extensions.Kind("DaemonSet"),
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config.Namespace,
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config.Name,
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))
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}(daemonConfig)
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}
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daemonSetCreationPhase.End()
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// Simulate lifetime of RC:
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// * create with initial size
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// * scale RC to a random size and list all pods
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// * scale RC to a random size and list all pods
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// * delete it
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//
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// This will generate ~5 creations/deletions per second assuming:
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// - X small RCs each 5 pods [ 5 * X = totalPods / 2 ]
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// - Y medium RCs each 30 pods [ 30 * Y = totalPods / 4 ]
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// - Z big RCs each 250 pods [ 250 * Z = totalPods / 4]
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// We would like to spread creating replication controllers over time
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// to make it possible to create/schedule them in the meantime.
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// Currently we assume <throughput> pods/second average throughput.
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// We may want to revisit it in the future.
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framework.Logf("Starting to create %v objects...", itArg.kind)
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creatingTime := time.Duration(totalPods/throughput) * time.Second
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createAllResources(configs, creatingTime, testPhaseDurations.StartPhase(200, "load pods creation"))
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By("============================================================================")
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// We would like to spread scaling replication controllers over time
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// to make it possible to create/schedule & delete them in the meantime.
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// Currently we assume that <throughput> pods/second average throughput.
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// The expected number of created/deleted pods is less than totalPods/3.
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scalingTime := time.Duration(totalPods/(3*throughput)) * time.Second
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framework.Logf("Starting to scale %v objects first time...", itArg.kind)
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scaleAllResources(configs, scalingTime, testPhaseDurations.StartPhase(300, "scaling first time"))
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By("============================================================================")
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framework.Logf("Starting to scale %v objects second time...", itArg.kind)
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scaleAllResources(configs, scalingTime, testPhaseDurations.StartPhase(400, "scaling second time"))
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By("============================================================================")
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// Cleanup all created replication controllers.
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// Currently we assume <throughput> pods/second average deletion throughput.
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// We may want to revisit it in the future.
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deletingTime := time.Duration(totalPods/throughput) * time.Second
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framework.Logf("Starting to delete %v objects...", itArg.kind)
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deleteAllResources(configs, deletingTime, testPhaseDurations.StartPhase(500, "load pods deletion"))
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})
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}
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})
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func createClients(numberOfClients int) ([]clientset.Interface, []internalclientset.Interface, []scaleclient.ScalesGetter, error) {
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clients := make([]clientset.Interface, numberOfClients)
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internalClients := make([]internalclientset.Interface, numberOfClients)
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scalesClients := make([]scaleclient.ScalesGetter, numberOfClients)
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for i := 0; i < numberOfClients; i++ {
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config, err := framework.LoadConfig()
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Expect(err).NotTo(HaveOccurred())
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config.QPS = 100
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config.Burst = 200
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if framework.TestContext.KubeAPIContentType != "" {
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config.ContentType = framework.TestContext.KubeAPIContentType
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}
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// For the purpose of this test, we want to force that clients
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// do not share underlying transport (which is a default behavior
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// in Kubernetes). Thus, we are explicitly creating transport for
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// each client here.
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transportConfig, err := config.TransportConfig()
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if err != nil {
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return nil, nil, nil, err
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}
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tlsConfig, err := transport.TLSConfigFor(transportConfig)
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if err != nil {
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return nil, nil, nil, err
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}
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config.Transport = utilnet.SetTransportDefaults(&http.Transport{
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Proxy: http.ProxyFromEnvironment,
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TLSHandshakeTimeout: 10 * time.Second,
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TLSClientConfig: tlsConfig,
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MaxIdleConnsPerHost: 100,
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Dial: (&net.Dialer{
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Timeout: 30 * time.Second,
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KeepAlive: 30 * time.Second,
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}).Dial,
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})
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// Overwrite TLS-related fields from config to avoid collision with
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// Transport field.
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config.TLSClientConfig = restclient.TLSClientConfig{}
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c, err := clientset.NewForConfig(config)
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if err != nil {
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return nil, nil, nil, err
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}
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clients[i] = c
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internalClient, err := internalclientset.NewForConfig(config)
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if err != nil {
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return nil, nil, nil, err
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}
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internalClients[i] = internalClient
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// create scale client, if GroupVersion or NegotiatedSerializer are not set
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// assign default values - these fields are mandatory (required by RESTClientFor).
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if config.GroupVersion == nil {
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config.GroupVersion = &schema.GroupVersion{}
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}
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if config.NegotiatedSerializer == nil {
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config.NegotiatedSerializer = legacyscheme.Codecs
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}
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restClient, err := restclient.RESTClientFor(config)
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if err != nil {
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return nil, nil, nil, err
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}
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discoClient, err := discovery.NewDiscoveryClientForConfig(config)
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if err != nil {
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return nil, nil, nil, err
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}
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cachedDiscoClient := cacheddiscovery.NewMemCacheClient(discoClient)
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restMapper := discovery.NewDeferredDiscoveryRESTMapper(cachedDiscoClient, meta.InterfacesForUnstructured)
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resolver := scaleclient.NewDiscoveryScaleKindResolver(cachedDiscoClient)
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scalesClients[i] = scaleclient.New(restClient, restMapper, dynamic.LegacyAPIPathResolverFunc, resolver)
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}
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return clients, internalClients, scalesClients, nil
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}
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func computePodCounts(total int) (int, int, int) {
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// Small RCs owns ~0.5 of total number of pods, medium and big RCs ~0.25 each.
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// For example for 3000 pods (100 nodes, 30 pods per node) there are:
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// - 300 small RCs each 5 pods
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// - 25 medium RCs each 30 pods
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// - 3 big RCs each 250 pods
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bigGroupCount := total / 4 / bigGroupSize
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total -= bigGroupCount * bigGroupSize
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mediumGroupCount := total / 3 / mediumGroupSize
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total -= mediumGroupCount * mediumGroupSize
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smallGroupCount := total / smallGroupSize
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return smallGroupCount, mediumGroupCount, bigGroupCount
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}
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func generateConfigs(
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totalPods int,
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image string,
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command []string,
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nss []*v1.Namespace,
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kind schema.GroupKind,
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secretsPerPod int,
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configMapsPerPod int,
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) ([]testutils.RunObjectConfig, []*testutils.SecretConfig, []*testutils.ConfigMapConfig) {
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configs := make([]testutils.RunObjectConfig, 0)
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secretConfigs := make([]*testutils.SecretConfig, 0)
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configMapConfigs := make([]*testutils.ConfigMapConfig, 0)
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smallGroupCount, mediumGroupCount, bigGroupCount := computePodCounts(totalPods)
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newConfigs, newSecretConfigs, newConfigMapConfigs := GenerateConfigsForGroup(nss, smallGroupName, smallGroupSize, smallGroupCount, image, command, kind, secretsPerPod, configMapsPerPod)
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configs = append(configs, newConfigs...)
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secretConfigs = append(secretConfigs, newSecretConfigs...)
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configMapConfigs = append(configMapConfigs, newConfigMapConfigs...)
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newConfigs, newSecretConfigs, newConfigMapConfigs = GenerateConfigsForGroup(nss, mediumGroupName, mediumGroupSize, mediumGroupCount, image, command, kind, secretsPerPod, configMapsPerPod)
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configs = append(configs, newConfigs...)
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secretConfigs = append(secretConfigs, newSecretConfigs...)
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configMapConfigs = append(configMapConfigs, newConfigMapConfigs...)
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newConfigs, newSecretConfigs, newConfigMapConfigs = GenerateConfigsForGroup(nss, bigGroupName, bigGroupSize, bigGroupCount, image, command, kind, secretsPerPod, configMapsPerPod)
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configs = append(configs, newConfigs...)
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secretConfigs = append(secretConfigs, newSecretConfigs...)
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configMapConfigs = append(configMapConfigs, newConfigMapConfigs...)
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// Create a number of clients to better simulate real usecase
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// where not everyone is using exactly the same client.
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rcsPerClient := 20
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clients, internalClients, scalesClients, err := createClients((len(configs) + rcsPerClient - 1) / rcsPerClient)
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framework.ExpectNoError(err)
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for i := 0; i < len(configs); i++ {
|
|
configs[i].SetClient(clients[i%len(clients)])
|
|
configs[i].SetInternalClient(internalClients[i%len(internalClients)])
|
|
configs[i].SetScalesClient(scalesClients[i%len(clients)])
|
|
}
|
|
for i := 0; i < len(secretConfigs); i++ {
|
|
secretConfigs[i].Client = clients[i%len(clients)]
|
|
}
|
|
for i := 0; i < len(configMapConfigs); i++ {
|
|
configMapConfigs[i].Client = clients[i%len(clients)]
|
|
}
|
|
|
|
return configs, secretConfigs, configMapConfigs
|
|
}
|
|
|
|
func GenerateConfigsForGroup(
|
|
nss []*v1.Namespace,
|
|
groupName string,
|
|
size, count int,
|
|
image string,
|
|
command []string,
|
|
kind schema.GroupKind,
|
|
secretsPerPod int,
|
|
configMapsPerPod int,
|
|
) ([]testutils.RunObjectConfig, []*testutils.SecretConfig, []*testutils.ConfigMapConfig) {
|
|
configs := make([]testutils.RunObjectConfig, 0, count)
|
|
secretConfigs := make([]*testutils.SecretConfig, 0, count*secretsPerPod)
|
|
configMapConfigs := make([]*testutils.ConfigMapConfig, 0, count*configMapsPerPod)
|
|
savedKind := kind
|
|
for i := 1; i <= count; i++ {
|
|
kind = savedKind
|
|
namespace := nss[i%len(nss)].Name
|
|
secretNames := make([]string, 0, secretsPerPod)
|
|
configMapNames := make([]string, 0, configMapsPerPod)
|
|
|
|
for j := 0; j < secretsPerPod; j++ {
|
|
secretName := fmt.Sprintf("%v-%v-secret-%v", groupName, i, j)
|
|
secretConfigs = append(secretConfigs, &testutils.SecretConfig{
|
|
Content: map[string]string{"foo": "bar"},
|
|
Client: nil, // this will be overwritten later
|
|
Name: secretName,
|
|
Namespace: namespace,
|
|
LogFunc: framework.Logf,
|
|
})
|
|
secretNames = append(secretNames, secretName)
|
|
}
|
|
|
|
for j := 0; j < configMapsPerPod; j++ {
|
|
configMapName := fmt.Sprintf("%v-%v-configmap-%v", groupName, i, j)
|
|
configMapConfigs = append(configMapConfigs, &testutils.ConfigMapConfig{
|
|
Content: map[string]string{"foo": "bar"},
|
|
Client: nil, // this will be overwritten later
|
|
Name: configMapName,
|
|
Namespace: namespace,
|
|
LogFunc: framework.Logf,
|
|
})
|
|
configMapNames = append(configMapNames, configMapName)
|
|
}
|
|
|
|
baseConfig := &testutils.RCConfig{
|
|
Client: nil, // this will be overwritten later
|
|
InternalClient: nil, // this will be overwritten later
|
|
Name: groupName + "-" + strconv.Itoa(i),
|
|
Namespace: namespace,
|
|
Timeout: 10 * time.Minute,
|
|
Image: image,
|
|
Command: command,
|
|
Replicas: size,
|
|
CpuRequest: 10, // 0.01 core
|
|
MemRequest: 26214400, // 25MB
|
|
SecretNames: secretNames,
|
|
ConfigMapNames: configMapNames,
|
|
// Define a label to group every 2 RCs into one service.
|
|
Labels: map[string]string{svcLabelKey: groupName + "-" + strconv.Itoa((i+1)/2)},
|
|
}
|
|
|
|
if kind == randomKind {
|
|
kind = knownKinds[rand.Int()%len(knownKinds)]
|
|
}
|
|
|
|
var config testutils.RunObjectConfig
|
|
switch kind {
|
|
case api.Kind("ReplicationController"):
|
|
config = baseConfig
|
|
case extensions.Kind("ReplicaSet"):
|
|
config = &testutils.ReplicaSetConfig{RCConfig: *baseConfig}
|
|
case extensions.Kind("Deployment"):
|
|
config = &testutils.DeploymentConfig{RCConfig: *baseConfig}
|
|
case batch.Kind("Job"):
|
|
config = &testutils.JobConfig{RCConfig: *baseConfig}
|
|
default:
|
|
framework.Failf("Unsupported kind for config creation: %v", kind)
|
|
}
|
|
configs = append(configs, config)
|
|
}
|
|
return configs, secretConfigs, configMapConfigs
|
|
}
|
|
|
|
func generateServicesForConfigs(configs []testutils.RunObjectConfig) []*v1.Service {
|
|
services := make([]*v1.Service, 0)
|
|
currentSvcLabel := ""
|
|
for _, config := range configs {
|
|
svcLabel, found := config.GetLabelValue(svcLabelKey)
|
|
if !found || svcLabel == currentSvcLabel {
|
|
continue
|
|
}
|
|
currentSvcLabel = svcLabel
|
|
serviceName := config.GetName() + "-svc"
|
|
labels := map[string]string{
|
|
"name": config.GetName(),
|
|
svcLabelKey: currentSvcLabel,
|
|
}
|
|
service := &v1.Service{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: serviceName,
|
|
Namespace: config.GetNamespace(),
|
|
},
|
|
Spec: v1.ServiceSpec{
|
|
Selector: labels,
|
|
Ports: []v1.ServicePort{{
|
|
Port: 80,
|
|
TargetPort: intstr.FromInt(80),
|
|
}},
|
|
},
|
|
}
|
|
services = append(services, service)
|
|
}
|
|
return services
|
|
}
|
|
|
|
func sleepUpTo(d time.Duration) {
|
|
if d.Nanoseconds() > 0 {
|
|
time.Sleep(time.Duration(rand.Int63n(d.Nanoseconds())))
|
|
}
|
|
}
|
|
|
|
func retryWithExponentialBackOff(initialDuration time.Duration, fn wait.ConditionFunc) error {
|
|
backoff := wait.Backoff{
|
|
Duration: initialDuration,
|
|
Factor: 3,
|
|
Jitter: 0,
|
|
Steps: 6,
|
|
}
|
|
return wait.ExponentialBackoff(backoff, fn)
|
|
}
|
|
|
|
func createAllResources(configs []testutils.RunObjectConfig, creatingTime time.Duration, testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
var wg sync.WaitGroup
|
|
wg.Add(len(configs))
|
|
for _, config := range configs {
|
|
go createResource(&wg, config, creatingTime)
|
|
}
|
|
wg.Wait()
|
|
}
|
|
|
|
func createResource(wg *sync.WaitGroup, config testutils.RunObjectConfig, creatingTime time.Duration) {
|
|
defer GinkgoRecover()
|
|
defer wg.Done()
|
|
|
|
sleepUpTo(creatingTime)
|
|
framework.ExpectNoError(config.Run(), fmt.Sprintf("creating %v %s", config.GetKind(), config.GetName()))
|
|
}
|
|
|
|
func scaleAllResources(configs []testutils.RunObjectConfig, scalingTime time.Duration, testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
var wg sync.WaitGroup
|
|
wg.Add(len(configs))
|
|
for _, config := range configs {
|
|
go scaleResource(&wg, config, scalingTime)
|
|
}
|
|
wg.Wait()
|
|
}
|
|
|
|
// Scales RC to a random size within [0.5*size, 1.5*size] and lists all the pods afterwards.
|
|
// Scaling happens always based on original size, not the current size.
|
|
func scaleResource(wg *sync.WaitGroup, config testutils.RunObjectConfig, scalingTime time.Duration) {
|
|
defer GinkgoRecover()
|
|
defer wg.Done()
|
|
|
|
sleepUpTo(scalingTime)
|
|
newSize := uint(rand.Intn(config.GetReplicas()) + config.GetReplicas()/2)
|
|
framework.ExpectNoError(framework.ScaleResource(
|
|
config.GetClient(),
|
|
config.GetInternalClient(),
|
|
config.GetScalesGetter(),
|
|
config.GetNamespace(),
|
|
config.GetName(),
|
|
newSize,
|
|
true,
|
|
config.GetKind(),
|
|
config.GetGroupResource(),
|
|
),
|
|
fmt.Sprintf("scaling %v %v", config.GetKind(), config.GetName()))
|
|
|
|
selector := labels.SelectorFromSet(labels.Set(map[string]string{"name": config.GetName()}))
|
|
options := metav1.ListOptions{
|
|
LabelSelector: selector.String(),
|
|
ResourceVersion: "0",
|
|
}
|
|
listResourcePodsFunc := func() (bool, error) {
|
|
_, err := config.GetClient().CoreV1().Pods(config.GetNamespace()).List(options)
|
|
if err == nil {
|
|
return true, nil
|
|
}
|
|
framework.Logf("Failed to list pods from %v %v due to: %v", config.GetKind(), config.GetName(), err)
|
|
if framework.IsRetryableAPIError(err) {
|
|
return false, nil
|
|
}
|
|
return false, fmt.Errorf("Failed to list pods from %v %v with non-retriable error: %v", config.GetKind(), config.GetName(), err)
|
|
}
|
|
err := retryWithExponentialBackOff(100*time.Millisecond, listResourcePodsFunc)
|
|
framework.ExpectNoError(err)
|
|
}
|
|
|
|
func deleteAllResources(configs []testutils.RunObjectConfig, deletingTime time.Duration, testPhase *timer.Phase) {
|
|
defer testPhase.End()
|
|
var wg sync.WaitGroup
|
|
wg.Add(len(configs))
|
|
for _, config := range configs {
|
|
go deleteResource(&wg, config, deletingTime)
|
|
}
|
|
wg.Wait()
|
|
}
|
|
|
|
func deleteResource(wg *sync.WaitGroup, config testutils.RunObjectConfig, deletingTime time.Duration) {
|
|
defer GinkgoRecover()
|
|
defer wg.Done()
|
|
|
|
sleepUpTo(deletingTime)
|
|
if framework.TestContext.GarbageCollectorEnabled && config.GetKind() != extensions.Kind("Deployment") {
|
|
framework.ExpectNoError(framework.DeleteResourceAndWaitForGC(
|
|
config.GetClient(), config.GetKind(), config.GetNamespace(), config.GetName()),
|
|
fmt.Sprintf("deleting %v %s", config.GetKind(), config.GetName()))
|
|
} else {
|
|
framework.ExpectNoError(framework.DeleteResourceAndPods(
|
|
config.GetClient(), config.GetInternalClient(), config.GetKind(), config.GetNamespace(), config.GetName()),
|
|
fmt.Sprintf("deleting %v %s", config.GetKind(), config.GetName()))
|
|
}
|
|
}
|
|
|
|
func CreateNamespaces(f *framework.Framework, namespaceCount int, namePrefix string, testPhase *timer.Phase) ([]*v1.Namespace, error) {
|
|
defer testPhase.End()
|
|
namespaces := []*v1.Namespace{}
|
|
for i := 1; i <= namespaceCount; i++ {
|
|
namespace, err := f.CreateNamespace(fmt.Sprintf("%v-%d", namePrefix, i), nil)
|
|
if err != nil {
|
|
return []*v1.Namespace{}, err
|
|
}
|
|
namespaces = append(namespaces, namespace)
|
|
}
|
|
return namespaces, nil
|
|
}
|