12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943194419451946194719481949195019511952195319541955195619571958195919601961196219631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027202820292030203120322033203420352036203720382039204020412042204320442045204620472048204920502051205220532054205520562057205820592060206120622063206420652066206720682069207020712072207320742075207620772078207920802081208220832084208520862087208820892090209120922093209420952096209720982099210021012102210321042105210621072108210921102111211221132114211521162117211821192120212121222123212421252126212721282129213021312132213321342135213621372138213921402141214221432144214521462147214821492150215121522153215421552156215721582159216021612162216321642165216621672168216921702171217221732174217521762177217821792180 |
- /*
- Copyright 2016 The Kubernetes Authors.
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
- http://www.apache.org/licenses/LICENSE-2.0
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- */
- package statefulset
- import (
- "errors"
- "fmt"
- "math/rand"
- "reflect"
- "runtime"
- "sort"
- "strconv"
- "strings"
- "testing"
- "time"
- apps "k8s.io/api/apps/v1"
- v1 "k8s.io/api/core/v1"
- apierrors "k8s.io/apimachinery/pkg/api/errors"
- metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
- "k8s.io/apimachinery/pkg/labels"
- utilerrors "k8s.io/apimachinery/pkg/util/errors"
- "k8s.io/client-go/informers"
- appsinformers "k8s.io/client-go/informers/apps/v1"
- coreinformers "k8s.io/client-go/informers/core/v1"
- clientset "k8s.io/client-go/kubernetes"
- "k8s.io/client-go/kubernetes/fake"
- appslisters "k8s.io/client-go/listers/apps/v1"
- corelisters "k8s.io/client-go/listers/core/v1"
- "k8s.io/client-go/tools/cache"
- "k8s.io/client-go/tools/record"
- podutil "k8s.io/kubernetes/pkg/api/v1/pod"
- "k8s.io/kubernetes/pkg/controller"
- "k8s.io/kubernetes/pkg/controller/history"
- )
- type invariantFunc func(set *apps.StatefulSet, spc *fakeStatefulPodControl) error
- func setupController(client clientset.Interface) (*fakeStatefulPodControl, *fakeStatefulSetStatusUpdater, StatefulSetControlInterface, chan struct{}) {
- informerFactory := informers.NewSharedInformerFactory(client, controller.NoResyncPeriodFunc())
- spc := newFakeStatefulPodControl(informerFactory.Core().V1().Pods(), informerFactory.Apps().V1().StatefulSets(), informerFactory.Apps().V1().ControllerRevisions())
- ssu := newFakeStatefulSetStatusUpdater(informerFactory.Apps().V1().StatefulSets())
- recorder := record.NewFakeRecorder(10)
- ssc := NewDefaultStatefulSetControl(spc, ssu, history.NewFakeHistory(informerFactory.Apps().V1().ControllerRevisions()), recorder)
- stop := make(chan struct{})
- informerFactory.Start(stop)
- cache.WaitForCacheSync(
- stop,
- informerFactory.Apps().V1().StatefulSets().Informer().HasSynced,
- informerFactory.Core().V1().Pods().Informer().HasSynced,
- informerFactory.Apps().V1().ControllerRevisions().Informer().HasSynced,
- )
- return spc, ssu, ssc, stop
- }
- func burst(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.PodManagementPolicy = apps.ParallelPodManagement
- return set
- }
- func TestStatefulSetControl(t *testing.T) {
- simpleSetFn := func() *apps.StatefulSet { return newStatefulSet(3) }
- largeSetFn := func() *apps.StatefulSet { return newStatefulSet(5) }
- testCases := []struct {
- fn func(*testing.T, *apps.StatefulSet, invariantFunc)
- obj func() *apps.StatefulSet
- }{
- {CreatesPods, simpleSetFn},
- {ScalesUp, simpleSetFn},
- {ScalesDown, simpleSetFn},
- {ReplacesPods, largeSetFn},
- {RecreatesFailedPod, simpleSetFn},
- {CreatePodFailure, simpleSetFn},
- {UpdatePodFailure, simpleSetFn},
- {UpdateSetStatusFailure, simpleSetFn},
- {PodRecreateDeleteFailure, simpleSetFn},
- }
- for _, testCase := range testCases {
- fnName := runtime.FuncForPC(reflect.ValueOf(testCase.fn).Pointer()).Name()
- if i := strings.LastIndex(fnName, "."); i != -1 {
- fnName = fnName[i+1:]
- }
- t.Run(
- fmt.Sprintf("%s/Monotonic", fnName),
- func(t *testing.T) {
- testCase.fn(t, testCase.obj(), assertMonotonicInvariants)
- },
- )
- t.Run(
- fmt.Sprintf("%s/Burst", fnName),
- func(t *testing.T) {
- set := burst(testCase.obj())
- testCase.fn(t, set, assertBurstInvariants)
- },
- )
- }
- }
- func CreatesPods(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 3 {
- t.Error("Failed to scale statefulset to 3 replicas")
- }
- if set.Status.ReadyReplicas != 3 {
- t.Error("Failed to set ReadyReplicas correctly")
- }
- if set.Status.UpdatedReplicas != 3 {
- t.Error("Failed to set UpdatedReplicas correctly")
- }
- }
- func ScalesUp(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- *set.Spec.Replicas = 4
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to scale StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 4 {
- t.Error("Failed to scale statefulset to 4 replicas")
- }
- if set.Status.ReadyReplicas != 4 {
- t.Error("Failed to set readyReplicas correctly")
- }
- if set.Status.UpdatedReplicas != 4 {
- t.Error("Failed to set updatedReplicas correctly")
- }
- }
- func ScalesDown(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- *set.Spec.Replicas = 0
- if err := scaleDownStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to scale StatefulSet : %s", err)
- }
- if set.Status.Replicas != 0 {
- t.Error("Failed to scale statefulset to 0 replicas")
- }
- if set.Status.ReadyReplicas != 0 {
- t.Error("Failed to set readyReplicas correctly")
- }
- if set.Status.UpdatedReplicas != 0 {
- t.Error("Failed to set updatedReplicas correctly")
- }
- }
- func ReplacesPods(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 5 {
- t.Error("Failed to scale statefulset to 5 replicas")
- }
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Error(err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- sort.Sort(ascendingOrdinal(pods))
- spc.podsIndexer.Delete(pods[0])
- spc.podsIndexer.Delete(pods[2])
- spc.podsIndexer.Delete(pods[4])
- for i := 0; i < 5; i += 2 {
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- if err = ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Failed to update StatefulSet : %s", err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if pods, err = spc.setPodRunning(set, i); err != nil {
- t.Error(err)
- }
- if err = ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Failed to update StatefulSet : %s", err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if pods, err = spc.setPodReady(set, i); err != nil {
- t.Error(err)
- }
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Failed to update StatefulSet : %s", err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if e, a := int32(5), set.Status.Replicas; e != a {
- t.Errorf("Expected to scale to %d, got %d", e, a)
- }
- }
- func RecreatesFailedPod(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset()
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Error(err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Error updating StatefulSet %s", err)
- }
- if err := invariants(set, spc); err != nil {
- t.Error(err)
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- pods[0].Status.Phase = v1.PodFailed
- spc.podsIndexer.Update(pods[0])
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Error updating StatefulSet %s", err)
- }
- if err := invariants(set, spc); err != nil {
- t.Error(err)
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- if isCreated(pods[0]) {
- t.Error("StatefulSet did not recreate failed Pod")
- }
- }
- func CreatePodFailure(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- spc.SetCreateStatefulPodError(apierrors.NewInternalError(errors.New("API server failed")), 2)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil && isOrHasInternalError(err) {
- t.Errorf("StatefulSetControl did not return InternalError found %s", err)
- }
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 3 {
- t.Error("Failed to scale StatefulSet to 3 replicas")
- }
- if set.Status.ReadyReplicas != 3 {
- t.Error("Failed to set readyReplicas correctly")
- }
- if set.Status.UpdatedReplicas != 3 {
- t.Error("Failed to updatedReplicas correctly")
- }
- }
- func UpdatePodFailure(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- spc.SetUpdateStatefulPodError(apierrors.NewInternalError(errors.New("API server failed")), 0)
- // have to have 1 successful loop first
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Fatalf("Unexpected error: %v", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 3 {
- t.Error("Failed to scale StatefulSet to 3 replicas")
- }
- if set.Status.ReadyReplicas != 3 {
- t.Error("Failed to set readyReplicas correctly")
- }
- if set.Status.UpdatedReplicas != 3 {
- t.Error("Failed to set updatedReplicas correctly")
- }
- // now mutate a pod's identity
- pods, err := spc.podsLister.List(labels.Everything())
- if err != nil {
- t.Fatalf("Error listing pods: %v", err)
- }
- if len(pods) != 3 {
- t.Fatalf("Expected 3 pods, got %d", len(pods))
- }
- sort.Sort(ascendingOrdinal(pods))
- pods[0].Name = "goo-0"
- spc.podsIndexer.Update(pods[0])
- // now it should fail
- if err := ssc.UpdateStatefulSet(set, pods); err != nil && isOrHasInternalError(err) {
- t.Errorf("StatefulSetControl did not return InternalError found %s", err)
- }
- }
- func UpdateSetStatusFailure(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, ssu, ssc, stop := setupController(client)
- defer close(stop)
- ssu.SetUpdateStatefulSetStatusError(apierrors.NewInternalError(errors.New("API server failed")), 2)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil && isOrHasInternalError(err) {
- t.Errorf("StatefulSetControl did not return InternalError found %s", err)
- }
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 3 {
- t.Error("Failed to scale StatefulSet to 3 replicas")
- }
- if set.Status.ReadyReplicas != 3 {
- t.Error("Failed to set readyReplicas to 3")
- }
- if set.Status.UpdatedReplicas != 3 {
- t.Error("Failed to set updatedReplicas to 3")
- }
- }
- func PodRecreateDeleteFailure(t *testing.T, set *apps.StatefulSet, invariants invariantFunc) {
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Error(err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Error updating StatefulSet %s", err)
- }
- if err := invariants(set, spc); err != nil {
- t.Error(err)
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- pods[0].Status.Phase = v1.PodFailed
- spc.podsIndexer.Update(pods[0])
- spc.SetDeleteStatefulPodError(apierrors.NewInternalError(errors.New("API server failed")), 0)
- if err := ssc.UpdateStatefulSet(set, pods); err != nil && isOrHasInternalError(err) {
- t.Errorf("StatefulSet failed to %s", err)
- }
- if err := invariants(set, spc); err != nil {
- t.Error(err)
- }
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- t.Errorf("Error updating StatefulSet %s", err)
- }
- if err := invariants(set, spc); err != nil {
- t.Error(err)
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Error(err)
- }
- if isCreated(pods[0]) {
- t.Error("StatefulSet did not recreate failed Pod")
- }
- }
- func TestStatefulSetControlScaleDownDeleteError(t *testing.T) {
- invariants := assertMonotonicInvariants
- set := newStatefulSet(3)
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- *set.Spec.Replicas = 0
- spc.SetDeleteStatefulPodError(apierrors.NewInternalError(errors.New("API server failed")), 2)
- if err := scaleDownStatefulSetControl(set, ssc, spc, invariants); err != nil && isOrHasInternalError(err) {
- t.Errorf("StatefulSetControl failed to throw error on delete %s", err)
- }
- if err := scaleDownStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn down StatefulSet %s", err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- if set.Status.Replicas != 0 {
- t.Error("Failed to scale statefulset to 0 replicas")
- }
- if set.Status.ReadyReplicas != 0 {
- t.Error("Failed to set readyReplicas to 0")
- }
- if set.Status.UpdatedReplicas != 0 {
- t.Error("Failed to set updatedReplicas to 0")
- }
- }
- func TestStatefulSetControl_getSetRevisions(t *testing.T) {
- type testcase struct {
- name string
- existing []*apps.ControllerRevision
- set *apps.StatefulSet
- expectedCount int
- expectedCurrent *apps.ControllerRevision
- expectedUpdate *apps.ControllerRevision
- err bool
- }
- testFn := func(test *testcase, t *testing.T) {
- client := fake.NewSimpleClientset()
- informerFactory := informers.NewSharedInformerFactory(client, controller.NoResyncPeriodFunc())
- spc := newFakeStatefulPodControl(informerFactory.Core().V1().Pods(), informerFactory.Apps().V1().StatefulSets(), informerFactory.Apps().V1().ControllerRevisions())
- ssu := newFakeStatefulSetStatusUpdater(informerFactory.Apps().V1().StatefulSets())
- recorder := record.NewFakeRecorder(10)
- ssc := defaultStatefulSetControl{spc, ssu, history.NewFakeHistory(informerFactory.Apps().V1().ControllerRevisions()), recorder}
- stop := make(chan struct{})
- defer close(stop)
- informerFactory.Start(stop)
- cache.WaitForCacheSync(
- stop,
- informerFactory.Apps().V1().StatefulSets().Informer().HasSynced,
- informerFactory.Core().V1().Pods().Informer().HasSynced,
- informerFactory.Apps().V1().ControllerRevisions().Informer().HasSynced,
- )
- test.set.Status.CollisionCount = new(int32)
- for i := range test.existing {
- ssc.controllerHistory.CreateControllerRevision(test.set, test.existing[i], test.set.Status.CollisionCount)
- }
- revisions, err := ssc.ListRevisions(test.set)
- if err != nil {
- t.Fatal(err)
- }
- current, update, _, err := ssc.getStatefulSetRevisions(test.set, revisions)
- if err != nil {
- t.Fatalf("error getting statefulset revisions:%v", err)
- }
- revisions, err = ssc.ListRevisions(test.set)
- if err != nil {
- t.Fatal(err)
- }
- if len(revisions) != test.expectedCount {
- t.Errorf("%s: want %d revisions got %d", test.name, test.expectedCount, len(revisions))
- }
- if test.err && err == nil {
- t.Errorf("%s: expected error", test.name)
- }
- if !test.err && !history.EqualRevision(current, test.expectedCurrent) {
- t.Errorf("%s: for current want %v got %v", test.name, test.expectedCurrent, current)
- }
- if !test.err && !history.EqualRevision(update, test.expectedUpdate) {
- t.Errorf("%s: for update want %v got %v", test.name, test.expectedUpdate, update)
- }
- if !test.err && test.expectedCurrent != nil && current != nil && test.expectedCurrent.Revision != current.Revision {
- t.Errorf("%s: for current revision want %d got %d", test.name, test.expectedCurrent.Revision, current.Revision)
- }
- if !test.err && test.expectedUpdate != nil && update != nil && test.expectedUpdate.Revision != update.Revision {
- t.Errorf("%s: for update revision want %d got %d", test.name, test.expectedUpdate.Revision, update.Revision)
- }
- }
- updateRevision := func(cr *apps.ControllerRevision, revision int64) *apps.ControllerRevision {
- clone := cr.DeepCopy()
- clone.Revision = revision
- return clone
- }
- set := newStatefulSet(3)
- set.Status.CollisionCount = new(int32)
- rev0 := newRevisionOrDie(set, 1)
- set1 := set.DeepCopy()
- set1.Spec.Template.Spec.Containers[0].Image = "foo"
- set1.Status.CurrentRevision = rev0.Name
- set1.Status.CollisionCount = new(int32)
- rev1 := newRevisionOrDie(set1, 2)
- set2 := set1.DeepCopy()
- set2.Spec.Template.Labels["new"] = "label"
- set2.Status.CurrentRevision = rev0.Name
- set2.Status.CollisionCount = new(int32)
- rev2 := newRevisionOrDie(set2, 3)
- tests := []testcase{
- {
- name: "creates initial revision",
- existing: nil,
- set: set,
- expectedCount: 1,
- expectedCurrent: rev0,
- expectedUpdate: rev0,
- err: false,
- },
- {
- name: "creates revision on update",
- existing: []*apps.ControllerRevision{rev0},
- set: set1,
- expectedCount: 2,
- expectedCurrent: rev0,
- expectedUpdate: rev1,
- err: false,
- },
- {
- name: "must not recreate a new revision of same set",
- existing: []*apps.ControllerRevision{rev0, rev1},
- set: set1,
- expectedCount: 2,
- expectedCurrent: rev0,
- expectedUpdate: rev1,
- err: false,
- },
- {
- name: "must rollback to a previous revision",
- existing: []*apps.ControllerRevision{rev0, rev1, rev2},
- set: set1,
- expectedCount: 3,
- expectedCurrent: rev0,
- expectedUpdate: updateRevision(rev1, 4),
- err: false,
- },
- }
- for i := range tests {
- testFn(&tests[i], t)
- }
- }
- func TestStatefulSetControlRollingUpdate(t *testing.T) {
- type testcase struct {
- name string
- invariants func(set *apps.StatefulSet, spc *fakeStatefulPodControl) error
- initial func() *apps.StatefulSet
- update func(set *apps.StatefulSet) *apps.StatefulSet
- validate func(set *apps.StatefulSet, pods []*v1.Pod) error
- }
- testFn := func(test *testcase, t *testing.T) {
- set := test.initial()
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err := spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set = test.update(set)
- if err := updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := test.validate(set, pods); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- }
- tests := []testcase{
- {
- name: "monotonic image update",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale up",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale down",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(5)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 3
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale up",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale down",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(5))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 3
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- }
- for i := range tests {
- testFn(&tests[i], t)
- }
- }
- func TestStatefulSetControlOnDeleteUpdate(t *testing.T) {
- type testcase struct {
- name string
- invariants func(set *apps.StatefulSet, spc *fakeStatefulPodControl) error
- initial func() *apps.StatefulSet
- update func(set *apps.StatefulSet) *apps.StatefulSet
- validateUpdate func(set *apps.StatefulSet, pods []*v1.Pod) error
- validateRestart func(set *apps.StatefulSet, pods []*v1.Pod) error
- }
- originalImage := newStatefulSet(3).Spec.Template.Spec.Containers[0].Image
- testFn := func(test *testcase, t *testing.T) {
- set := test.initial()
- set.Spec.UpdateStrategy = apps.StatefulSetUpdateStrategy{Type: apps.OnDeleteStatefulSetStrategyType}
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err := spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set = test.update(set)
- if err := updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := test.validateUpdate(set, pods); err != nil {
- for i := range pods {
- t.Log(pods[i].Name)
- }
- t.Fatalf("%s: %s", test.name, err)
- }
- replicas := *set.Spec.Replicas
- *set.Spec.Replicas = 0
- if err := scaleDownStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- *set.Spec.Replicas = replicas
- if err := scaleUpStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := test.validateRestart(set, pods); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- }
- tests := []testcase{
- {
- name: "monotonic image update",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRestart: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale up",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if i < 3 && pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- if i >= 3 && pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRestart: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale down",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(5)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 3
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRestart: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRestart: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale up",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if i < 3 && pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- if i >= 3 && pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRestart: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale down",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(5))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 3
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRestart: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- }
- for i := range tests {
- testFn(&tests[i], t)
- }
- }
- func TestStatefulSetControlRollingUpdateWithPartition(t *testing.T) {
- type testcase struct {
- name string
- partition int32
- invariants func(set *apps.StatefulSet, spc *fakeStatefulPodControl) error
- initial func() *apps.StatefulSet
- update func(set *apps.StatefulSet) *apps.StatefulSet
- validate func(set *apps.StatefulSet, pods []*v1.Pod) error
- }
- testFn := func(test *testcase, t *testing.T) {
- set := test.initial()
- set.Spec.UpdateStrategy = apps.StatefulSetUpdateStrategy{
- Type: apps.RollingUpdateStatefulSetStrategyType,
- RollingUpdate: func() *apps.RollingUpdateStatefulSetStrategy {
- return &apps.RollingUpdateStatefulSetStrategy{Partition: &test.partition}
- }(),
- }
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err := spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set = test.update(set)
- if err := updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := test.validate(set, pods); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- }
- originalImage := newStatefulSet(3).Spec.Template.Spec.Containers[0].Image
- tests := []testcase{
- {
- name: "monotonic image update",
- invariants: assertMonotonicInvariants,
- partition: 2,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if i < 2 && pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- if i >= 2 && pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale up",
- partition: 2,
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if i < 2 && pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- if i >= 2 && pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update",
- partition: 2,
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if i < 2 && pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- if i >= 2 && pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale up",
- invariants: assertBurstInvariants,
- partition: 2,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if i < 2 && pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- if i >= 2 && pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- }
- for i := range tests {
- testFn(&tests[i], t)
- }
- }
- func TestStatefulSetHonorRevisionHistoryLimit(t *testing.T) {
- invariants := assertMonotonicInvariants
- set := newStatefulSet(3)
- client := fake.NewSimpleClientset(set)
- spc, ssu, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, invariants); err != nil {
- t.Errorf("Failed to turn up StatefulSet : %s", err)
- }
- var err error
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- for i := 0; i < int(*set.Spec.RevisionHistoryLimit)+5; i++ {
- set.Spec.Template.Spec.Containers[0].Image = fmt.Sprintf("foo-%d", i)
- ssu.SetUpdateStatefulSetStatusError(apierrors.NewInternalError(errors.New("API server failed")), 2)
- updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants)
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("Error getting updated StatefulSet: %v", err)
- }
- revisions, err := ssc.ListRevisions(set)
- if err != nil {
- t.Fatalf("Error listing revisions: %v", err)
- }
- // the extra 2 revisions are `currentRevision` and `updateRevision`
- // They're considered as `live`, and truncateHistory only cleans up non-live revisions
- if len(revisions) > int(*set.Spec.RevisionHistoryLimit)+2 {
- t.Fatalf("%s: %d greater than limit %d", "", len(revisions), *set.Spec.RevisionHistoryLimit)
- }
- }
- }
- func TestStatefulSetControlLimitsHistory(t *testing.T) {
- type testcase struct {
- name string
- invariants func(set *apps.StatefulSet, spc *fakeStatefulPodControl) error
- initial func() *apps.StatefulSet
- }
- testFn := func(test *testcase, t *testing.T) {
- set := test.initial()
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err := spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- for i := 0; i < 10; i++ {
- set.Spec.Template.Spec.Containers[0].Image = fmt.Sprintf("foo-%d", i)
- if err := updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- err = ssc.UpdateStatefulSet(set, pods)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- revisions, err := ssc.ListRevisions(set)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if len(revisions) > int(*set.Spec.RevisionHistoryLimit)+2 {
- t.Fatalf("%s: %d greater than limit %d", test.name, len(revisions), *set.Spec.RevisionHistoryLimit)
- }
- }
- }
- tests := []testcase{
- {
- name: "monotonic update",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- },
- {
- name: "burst update",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- },
- }
- for i := range tests {
- testFn(&tests[i], t)
- }
- }
- func TestStatefulSetControlRollback(t *testing.T) {
- type testcase struct {
- name string
- invariants func(set *apps.StatefulSet, spc *fakeStatefulPodControl) error
- initial func() *apps.StatefulSet
- update func(set *apps.StatefulSet) *apps.StatefulSet
- validateUpdate func(set *apps.StatefulSet, pods []*v1.Pod) error
- validateRollback func(set *apps.StatefulSet, pods []*v1.Pod) error
- }
- originalImage := newStatefulSet(3).Spec.Template.Spec.Containers[0].Image
- testFn := func(test *testcase, t *testing.T) {
- set := test.initial()
- client := fake.NewSimpleClientset(set)
- spc, _, ssc, stop := setupController(client)
- defer close(stop)
- if err := scaleUpStatefulSetControl(set, ssc, spc, test.invariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err := spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set = test.update(set)
- if err := updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := test.validateUpdate(set, pods); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- revisions, err := ssc.ListRevisions(set)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- history.SortControllerRevisions(revisions)
- set, err = ApplyRevision(set, revisions[0])
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := updateStatefulSetControl(set, ssc, spc, assertUpdateInvariants); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- if err := test.validateRollback(set, pods); err != nil {
- t.Fatalf("%s: %s", test.name, err)
- }
- }
- tests := []testcase{
- {
- name: "monotonic image update",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRollback: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale up",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(3)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRollback: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "monotonic image update and scale down",
- invariants: assertMonotonicInvariants,
- initial: func() *apps.StatefulSet {
- return newStatefulSet(5)
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 3
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRollback: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRollback: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale up",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(3))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 5
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRollback: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- {
- name: "burst image update and scale down",
- invariants: assertBurstInvariants,
- initial: func() *apps.StatefulSet {
- return burst(newStatefulSet(5))
- },
- update: func(set *apps.StatefulSet) *apps.StatefulSet {
- *set.Spec.Replicas = 3
- set.Spec.Template.Spec.Containers[0].Image = "foo"
- return set
- },
- validateUpdate: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != "foo" {
- return fmt.Errorf("want pod %s image foo found %s", pods[i].Name, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- validateRollback: func(set *apps.StatefulSet, pods []*v1.Pod) error {
- sort.Sort(ascendingOrdinal(pods))
- for i := range pods {
- if pods[i].Spec.Containers[0].Image != originalImage {
- return fmt.Errorf("want pod %s image %s found %s", pods[i].Name, originalImage, pods[i].Spec.Containers[0].Image)
- }
- }
- return nil
- },
- },
- }
- for i := range tests {
- testFn(&tests[i], t)
- }
- }
- type requestTracker struct {
- requests int
- err error
- after int
- }
- func (rt *requestTracker) errorReady() bool {
- return rt.err != nil && rt.requests >= rt.after
- }
- func (rt *requestTracker) inc() {
- rt.requests++
- }
- func (rt *requestTracker) reset() {
- rt.err = nil
- rt.after = 0
- }
- type fakeStatefulPodControl struct {
- podsLister corelisters.PodLister
- claimsLister corelisters.PersistentVolumeClaimLister
- setsLister appslisters.StatefulSetLister
- podsIndexer cache.Indexer
- claimsIndexer cache.Indexer
- setsIndexer cache.Indexer
- revisionsIndexer cache.Indexer
- createPodTracker requestTracker
- updatePodTracker requestTracker
- deletePodTracker requestTracker
- }
- func newFakeStatefulPodControl(podInformer coreinformers.PodInformer, setInformer appsinformers.StatefulSetInformer, revisionInformer appsinformers.ControllerRevisionInformer) *fakeStatefulPodControl {
- claimsIndexer := cache.NewIndexer(controller.KeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
- return &fakeStatefulPodControl{
- podInformer.Lister(),
- corelisters.NewPersistentVolumeClaimLister(claimsIndexer),
- setInformer.Lister(),
- podInformer.Informer().GetIndexer(),
- claimsIndexer,
- setInformer.Informer().GetIndexer(),
- revisionInformer.Informer().GetIndexer(),
- requestTracker{0, nil, 0},
- requestTracker{0, nil, 0},
- requestTracker{0, nil, 0}}
- }
- func (spc *fakeStatefulPodControl) SetCreateStatefulPodError(err error, after int) {
- spc.createPodTracker.err = err
- spc.createPodTracker.after = after
- }
- func (spc *fakeStatefulPodControl) SetUpdateStatefulPodError(err error, after int) {
- spc.updatePodTracker.err = err
- spc.updatePodTracker.after = after
- }
- func (spc *fakeStatefulPodControl) SetDeleteStatefulPodError(err error, after int) {
- spc.deletePodTracker.err = err
- spc.deletePodTracker.after = after
- }
- func (spc *fakeStatefulPodControl) setPodPending(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return nil, err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return nil, err
- }
- if 0 > ordinal || ordinal >= len(pods) {
- return nil, fmt.Errorf("ordinal %d out of range [0,%d)", ordinal, len(pods))
- }
- sort.Sort(ascendingOrdinal(pods))
- pod := pods[ordinal].DeepCopy()
- pod.Status.Phase = v1.PodPending
- fakeResourceVersion(pod)
- spc.podsIndexer.Update(pod)
- return spc.podsLister.Pods(set.Namespace).List(selector)
- }
- func (spc *fakeStatefulPodControl) setPodRunning(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return nil, err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return nil, err
- }
- if 0 > ordinal || ordinal >= len(pods) {
- return nil, fmt.Errorf("ordinal %d out of range [0,%d)", ordinal, len(pods))
- }
- sort.Sort(ascendingOrdinal(pods))
- pod := pods[ordinal].DeepCopy()
- pod.Status.Phase = v1.PodRunning
- fakeResourceVersion(pod)
- spc.podsIndexer.Update(pod)
- return spc.podsLister.Pods(set.Namespace).List(selector)
- }
- func (spc *fakeStatefulPodControl) setPodReady(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return nil, err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return nil, err
- }
- if 0 > ordinal || ordinal >= len(pods) {
- return nil, fmt.Errorf("ordinal %d out of range [0,%d)", ordinal, len(pods))
- }
- sort.Sort(ascendingOrdinal(pods))
- pod := pods[ordinal].DeepCopy()
- condition := v1.PodCondition{Type: v1.PodReady, Status: v1.ConditionTrue}
- podutil.UpdatePodCondition(&pod.Status, &condition)
- fakeResourceVersion(pod)
- spc.podsIndexer.Update(pod)
- return spc.podsLister.Pods(set.Namespace).List(selector)
- }
- func (spc *fakeStatefulPodControl) addTerminatingPod(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
- pod := newStatefulSetPod(set, ordinal)
- pod.Status.Phase = v1.PodRunning
- deleted := metav1.NewTime(time.Now())
- pod.DeletionTimestamp = &deleted
- condition := v1.PodCondition{Type: v1.PodReady, Status: v1.ConditionTrue}
- fakeResourceVersion(pod)
- podutil.UpdatePodCondition(&pod.Status, &condition)
- spc.podsIndexer.Update(pod)
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return nil, err
- }
- return spc.podsLister.Pods(set.Namespace).List(selector)
- }
- func (spc *fakeStatefulPodControl) setPodTerminated(set *apps.StatefulSet, ordinal int) ([]*v1.Pod, error) {
- pod := newStatefulSetPod(set, ordinal)
- deleted := metav1.NewTime(time.Now())
- pod.DeletionTimestamp = &deleted
- fakeResourceVersion(pod)
- spc.podsIndexer.Update(pod)
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return nil, err
- }
- return spc.podsLister.Pods(set.Namespace).List(selector)
- }
- func (spc *fakeStatefulPodControl) CreateStatefulPod(set *apps.StatefulSet, pod *v1.Pod) error {
- defer spc.createPodTracker.inc()
- if spc.createPodTracker.errorReady() {
- defer spc.createPodTracker.reset()
- return spc.createPodTracker.err
- }
- for _, claim := range getPersistentVolumeClaims(set, pod) {
- spc.claimsIndexer.Update(&claim)
- }
- spc.podsIndexer.Update(pod)
- return nil
- }
- func (spc *fakeStatefulPodControl) UpdateStatefulPod(set *apps.StatefulSet, pod *v1.Pod) error {
- defer spc.updatePodTracker.inc()
- if spc.updatePodTracker.errorReady() {
- defer spc.updatePodTracker.reset()
- return spc.updatePodTracker.err
- }
- if !identityMatches(set, pod) {
- updateIdentity(set, pod)
- }
- if !storageMatches(set, pod) {
- updateStorage(set, pod)
- for _, claim := range getPersistentVolumeClaims(set, pod) {
- spc.claimsIndexer.Update(&claim)
- }
- }
- spc.podsIndexer.Update(pod)
- return nil
- }
- func (spc *fakeStatefulPodControl) DeleteStatefulPod(set *apps.StatefulSet, pod *v1.Pod) error {
- defer spc.deletePodTracker.inc()
- if spc.deletePodTracker.errorReady() {
- defer spc.deletePodTracker.reset()
- return spc.deletePodTracker.err
- }
- if key, err := controller.KeyFunc(pod); err != nil {
- return err
- } else if obj, found, err := spc.podsIndexer.GetByKey(key); err != nil {
- return err
- } else if found {
- spc.podsIndexer.Delete(obj)
- }
- return nil
- }
- var _ StatefulPodControlInterface = &fakeStatefulPodControl{}
- type fakeStatefulSetStatusUpdater struct {
- setsLister appslisters.StatefulSetLister
- setsIndexer cache.Indexer
- updateStatusTracker requestTracker
- }
- func newFakeStatefulSetStatusUpdater(setInformer appsinformers.StatefulSetInformer) *fakeStatefulSetStatusUpdater {
- return &fakeStatefulSetStatusUpdater{
- setInformer.Lister(),
- setInformer.Informer().GetIndexer(),
- requestTracker{0, nil, 0},
- }
- }
- func (ssu *fakeStatefulSetStatusUpdater) UpdateStatefulSetStatus(set *apps.StatefulSet, status *apps.StatefulSetStatus) error {
- defer ssu.updateStatusTracker.inc()
- if ssu.updateStatusTracker.errorReady() {
- defer ssu.updateStatusTracker.reset()
- return ssu.updateStatusTracker.err
- }
- set.Status = *status
- ssu.setsIndexer.Update(set)
- return nil
- }
- func (ssu *fakeStatefulSetStatusUpdater) SetUpdateStatefulSetStatusError(err error, after int) {
- ssu.updateStatusTracker.err = err
- ssu.updateStatusTracker.after = after
- }
- var _ StatefulSetStatusUpdaterInterface = &fakeStatefulSetStatusUpdater{}
- func assertMonotonicInvariants(set *apps.StatefulSet, spc *fakeStatefulPodControl) error {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- for ord := 0; ord < len(pods); ord++ {
- if ord > 0 && isRunningAndReady(pods[ord]) && !isRunningAndReady(pods[ord-1]) {
- return fmt.Errorf("successor %s is Running and Ready while %s is not", pods[ord].Name, pods[ord-1].Name)
- }
- if getOrdinal(pods[ord]) != ord {
- return fmt.Errorf("pods %s deployed in the wrong order %d", pods[ord].Name, ord)
- }
- if !storageMatches(set, pods[ord]) {
- return fmt.Errorf("pods %s does not match the storage specification of StatefulSet %s ", pods[ord].Name, set.Name)
- }
- for _, claim := range getPersistentVolumeClaims(set, pods[ord]) {
- claim, err := spc.claimsLister.PersistentVolumeClaims(set.Namespace).Get(claim.Name)
- if err != nil {
- return err
- }
- if claim == nil {
- return fmt.Errorf("claim %s for Pod %s was not created", claim.Name, pods[ord].Name)
- }
- }
- if !identityMatches(set, pods[ord]) {
- return fmt.Errorf("pods %s does not match the identity specification of StatefulSet %s ", pods[ord].Name, set.Name)
- }
- }
- return nil
- }
- func assertBurstInvariants(set *apps.StatefulSet, spc *fakeStatefulPodControl) error {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- for ord := 0; ord < len(pods); ord++ {
- if !storageMatches(set, pods[ord]) {
- return fmt.Errorf("pods %s does not match the storage specification of StatefulSet %s ", pods[ord].Name, set.Name)
- }
- for _, claim := range getPersistentVolumeClaims(set, pods[ord]) {
- claim, err := spc.claimsLister.PersistentVolumeClaims(set.Namespace).Get(claim.Name)
- if err != nil {
- return err
- }
- if claim == nil {
- return fmt.Errorf("claim %s for Pod %s was not created", claim.Name, pods[ord].Name)
- }
- }
- if !identityMatches(set, pods[ord]) {
- return fmt.Errorf("pods %s does not match the identity specification of StatefulSet %s ",
- pods[ord].Name,
- set.Name)
- }
- }
- return nil
- }
- func assertUpdateInvariants(set *apps.StatefulSet, spc *fakeStatefulPodControl) error {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- for ord := 0; ord < len(pods); ord++ {
- if !storageMatches(set, pods[ord]) {
- return fmt.Errorf("pod %s does not match the storage specification of StatefulSet %s ", pods[ord].Name, set.Name)
- }
- for _, claim := range getPersistentVolumeClaims(set, pods[ord]) {
- claim, err := spc.claimsLister.PersistentVolumeClaims(set.Namespace).Get(claim.Name)
- if err != nil {
- return err
- }
- if claim == nil {
- return fmt.Errorf("claim %s for Pod %s was not created", claim.Name, pods[ord].Name)
- }
- }
- if !identityMatches(set, pods[ord]) {
- return fmt.Errorf("pod %s does not match the identity specification of StatefulSet %s ", pods[ord].Name, set.Name)
- }
- }
- if set.Spec.UpdateStrategy.Type == apps.OnDeleteStatefulSetStrategyType {
- return nil
- }
- if set.Spec.UpdateStrategy.Type == apps.RollingUpdateStatefulSetStrategyType {
- for i := 0; i < int(set.Status.CurrentReplicas) && i < len(pods); i++ {
- if want, got := set.Status.CurrentRevision, getPodRevision(pods[i]); want != got {
- return fmt.Errorf("pod %s want current revision %s got %s", pods[i].Name, want, got)
- }
- }
- for i, j := len(pods)-1, 0; j < int(set.Status.UpdatedReplicas); i, j = i-1, j+1 {
- if want, got := set.Status.UpdateRevision, getPodRevision(pods[i]); want != got {
- return fmt.Errorf("pod %s want update revision %s got %s", pods[i].Name, want, got)
- }
- }
- }
- return nil
- }
- func fakeResourceVersion(object interface{}) {
- obj, isObj := object.(metav1.Object)
- if !isObj {
- return
- }
- if version := obj.GetResourceVersion(); version == "" {
- obj.SetResourceVersion("1")
- } else if intValue, err := strconv.ParseInt(version, 10, 32); err == nil {
- obj.SetResourceVersion(strconv.FormatInt(intValue+1, 10))
- }
- }
- func scaleUpStatefulSetControl(set *apps.StatefulSet,
- ssc StatefulSetControlInterface,
- spc *fakeStatefulPodControl,
- invariants invariantFunc) error {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return err
- }
- for set.Status.ReadyReplicas < *set.Spec.Replicas {
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- // ensure all pods are valid (have a phase)
- initialized := false
- for ord, pod := range pods {
- if pod.Status.Phase == "" {
- if pods, err = spc.setPodPending(set, ord); err != nil {
- return err
- }
- break
- }
- }
- if initialized {
- continue
- }
- // select one of the pods and move it forward in status
- if len(pods) > 0 {
- ord := int(rand.Int63n(int64(len(pods))))
- pod := pods[ord]
- switch pod.Status.Phase {
- case v1.PodPending:
- if pods, err = spc.setPodRunning(set, ord); err != nil {
- return err
- }
- case v1.PodRunning:
- if pods, err = spc.setPodReady(set, ord); err != nil {
- return err
- }
- default:
- continue
- }
- }
- // run the controller once and check invariants
- if err = ssc.UpdateStatefulSet(set, pods); err != nil {
- return err
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- return err
- }
- if err := invariants(set, spc); err != nil {
- return err
- }
- }
- return invariants(set, spc)
- }
- func scaleDownStatefulSetControl(set *apps.StatefulSet, ssc StatefulSetControlInterface, spc *fakeStatefulPodControl, invariants invariantFunc) error {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return err
- }
- for set.Status.Replicas > *set.Spec.Replicas {
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- if ordinal := len(pods) - 1; ordinal >= 0 {
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- return err
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- return err
- }
- if pods, err = spc.addTerminatingPod(set, ordinal); err != nil {
- return err
- }
- if err = ssc.UpdateStatefulSet(set, pods); err != nil {
- return err
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- return err
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- if len(pods) > 0 {
- spc.podsIndexer.Delete(pods[len(pods)-1])
- }
- }
- if err := ssc.UpdateStatefulSet(set, pods); err != nil {
- return err
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- return err
- }
- if err := invariants(set, spc); err != nil {
- return err
- }
- }
- return invariants(set, spc)
- }
- func updateComplete(set *apps.StatefulSet, pods []*v1.Pod) bool {
- sort.Sort(ascendingOrdinal(pods))
- if len(pods) != int(*set.Spec.Replicas) {
- return false
- }
- if set.Status.ReadyReplicas != *set.Spec.Replicas {
- return false
- }
- switch set.Spec.UpdateStrategy.Type {
- case apps.OnDeleteStatefulSetStrategyType:
- return true
- case apps.RollingUpdateStatefulSetStrategyType:
- if set.Spec.UpdateStrategy.RollingUpdate == nil || *set.Spec.UpdateStrategy.RollingUpdate.Partition <= 0 {
- if set.Status.CurrentReplicas < *set.Spec.Replicas {
- return false
- }
- for i := range pods {
- if getPodRevision(pods[i]) != set.Status.CurrentRevision {
- return false
- }
- }
- } else {
- partition := int(*set.Spec.UpdateStrategy.RollingUpdate.Partition)
- if len(pods) < partition {
- return false
- }
- for i := partition; i < len(pods); i++ {
- if getPodRevision(pods[i]) != set.Status.UpdateRevision {
- return false
- }
- }
- }
- }
- return true
- }
- func updateStatefulSetControl(set *apps.StatefulSet,
- ssc StatefulSetControlInterface,
- spc *fakeStatefulPodControl,
- invariants invariantFunc) error {
- selector, err := metav1.LabelSelectorAsSelector(set.Spec.Selector)
- if err != nil {
- return err
- }
- pods, err := spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- if err = ssc.UpdateStatefulSet(set, pods); err != nil {
- return err
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- return err
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- for !updateComplete(set, pods) {
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- sort.Sort(ascendingOrdinal(pods))
- initialized := false
- for ord, pod := range pods {
- if pod.Status.Phase == "" {
- if pods, err = spc.setPodPending(set, ord); err != nil {
- return err
- }
- break
- }
- }
- if initialized {
- continue
- }
- if len(pods) > 0 {
- ord := int(rand.Int63n(int64(len(pods))))
- pod := pods[ord]
- switch pod.Status.Phase {
- case v1.PodPending:
- if pods, err = spc.setPodRunning(set, ord); err != nil {
- return err
- }
- case v1.PodRunning:
- if pods, err = spc.setPodReady(set, ord); err != nil {
- return err
- }
- default:
- continue
- }
- }
- if err = ssc.UpdateStatefulSet(set, pods); err != nil {
- return err
- }
- set, err = spc.setsLister.StatefulSets(set.Namespace).Get(set.Name)
- if err != nil {
- return err
- }
- if err := invariants(set, spc); err != nil {
- return err
- }
- pods, err = spc.podsLister.Pods(set.Namespace).List(selector)
- if err != nil {
- return err
- }
- }
- return invariants(set, spc)
- }
- func newRevisionOrDie(set *apps.StatefulSet, revision int64) *apps.ControllerRevision {
- rev, err := newRevision(set, revision, set.Status.CollisionCount)
- if err != nil {
- panic(err)
- }
- return rev
- }
- func isOrHasInternalError(err error) bool {
- agg, ok := err.(utilerrors.Aggregate)
- return !ok && !apierrors.IsInternalError(err) || ok && len(agg.Errors()) > 0 && !apierrors.IsInternalError(agg.Errors()[0])
- }
|