forked from kubernetes/kubernetes
/
kubectl.go
2119 lines (1874 loc) · 85.2 KB
/
kubectl.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// OWNER = sig/cli
package kubectl
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
"sort"
"strconv"
"strings"
"text/template"
"time"
"github.com/elazarl/goproxy"
"github.com/ghodss/yaml"
"k8s.io/api/core/v1"
rbacv1beta1 "k8s.io/api/rbac/v1beta1"
apierrs "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime/schema"
utilnet "k8s.io/apimachinery/pkg/util/net"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/apiserver/pkg/authentication/serviceaccount"
genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/pkg/controller"
"k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/generated"
"k8s.io/kubernetes/test/e2e/scheduling"
testutils "k8s.io/kubernetes/test/utils"
uexec "k8s.io/utils/exec"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"k8s.io/kubernetes/pkg/kubectl/polymorphichelpers"
imageutils "k8s.io/kubernetes/test/utils/image"
)
const (
updateDemoSelector = "name=update-demo"
guestbookStartupTimeout = 10 * time.Minute
guestbookResponseTimeout = 3 * time.Minute
simplePodSelector = "name=nginx"
simplePodName = "nginx"
nginxDefaultOutput = "Welcome to nginx!"
simplePodPort = 80
pausePodSelector = "name=pause"
pausePodName = "pause"
runJobTimeout = 5 * time.Minute
kubeCtlManifestPath = "test/e2e/testing-manifests/kubectl"
redisControllerFilename = "redis-master-controller.json.in"
redisServiceFilename = "redis-master-service.json"
nginxDeployment1Filename = "nginx-deployment1.yaml.in"
nginxDeployment2Filename = "nginx-deployment2.yaml.in"
nginxDeployment3Filename = "nginx-deployment3.yaml.in"
)
var (
nautilusImage = imageutils.GetE2EImage(imageutils.Nautilus)
kittenImage = imageutils.GetE2EImage(imageutils.Kitten)
redisImage = imageutils.GetE2EImage(imageutils.Redis)
nginxImage = imageutils.GetE2EImage(imageutils.Nginx)
busyboxImage = imageutils.GetE2EImage(imageutils.BusyBox)
)
var testImages = struct {
GBFrontendImage string
PauseImage string
NginxImage string
NginxNewImage string
RedisImage string
GBRedisSlaveImage string
NautilusImage string
KittenImage string
}{
imageutils.GetE2EImage(imageutils.GBFrontend),
imageutils.GetE2EImage(imageutils.Pause),
imageutils.GetE2EImage(imageutils.Nginx),
imageutils.GetE2EImage(imageutils.NginxNew),
imageutils.GetE2EImage(imageutils.Redis),
imageutils.GetE2EImage(imageutils.GBRedisSlave),
imageutils.GetE2EImage(imageutils.Nautilus),
imageutils.GetE2EImage(imageutils.Kitten),
}
var (
proxyRegexp = regexp.MustCompile("Starting to serve on 127.0.0.1:([0-9]+)")
CronJobGroupVersionResourceAlpha = schema.GroupVersionResource{Group: "batch", Version: "v2alpha1", Resource: "cronjobs"}
CronJobGroupVersionResourceBeta = schema.GroupVersionResource{Group: "batch", Version: "v1beta1", Resource: "cronjobs"}
)
// Stops everything from filePath from namespace ns and checks if everything matching selectors from the given namespace is correctly stopped.
// Aware of the kubectl example files map.
func cleanupKubectlInputs(fileContents string, ns string, selectors ...string) {
By("using delete to clean up resources")
var nsArg string
if ns != "" {
nsArg = fmt.Sprintf("--namespace=%s", ns)
}
// support backward compatibility : file paths or raw json - since we are removing file path
// dependencies from this test.
framework.RunKubectlOrDieInput(fileContents, "delete", "--grace-period=0", "--force", "-f", "-", nsArg)
framework.AssertCleanup(ns, selectors...)
}
func substituteImageName(content string) string {
contentWithImageName := new(bytes.Buffer)
tmpl, err := template.New("imagemanifest").Parse(content)
if err != nil {
framework.Failf("Failed Parse the template: %v", err)
}
err = tmpl.Execute(contentWithImageName, testImages)
if err != nil {
framework.Failf("Failed executing template: %v", err)
}
return contentWithImageName.String()
}
func readTestFileOrDie(file string) []byte {
return generated.ReadOrDie(path.Join(kubeCtlManifestPath, file))
}
func runKubectlRetryOrDie(args ...string) string {
var err error
var output string
for i := 0; i < 5; i++ {
output, err = framework.RunKubectl(args...)
if err == nil || (!strings.Contains(err.Error(), genericregistry.OptimisticLockErrorMsg) && !strings.Contains(err.Error(), "Operation cannot be fulfilled")) {
break
}
time.Sleep(time.Second)
}
// Expect no errors to be present after retries are finished
// Copied from framework #ExecOrDie
framework.Logf("stdout: %q", output)
Expect(err).NotTo(HaveOccurred())
return output
}
// duplicated setup to avoid polluting "normal" clients with alpha features which confuses the generated clients
var _ = SIGDescribe("Kubectl alpha client", func() {
defer GinkgoRecover()
f := framework.NewDefaultFramework("kubectl")
var c clientset.Interface
var ns string
BeforeEach(func() {
c = f.ClientSet
ns = f.Namespace.Name
})
framework.KubeDescribe("Kubectl run CronJob", func() {
var nsFlag string
var cjName string
BeforeEach(func() {
nsFlag = fmt.Sprintf("--namespace=%v", ns)
cjName = "e2e-test-echo-cronjob-alpha"
})
AfterEach(func() {
framework.RunKubectlOrDie("delete", "cronjobs", cjName, nsFlag)
})
It("should create a CronJob", func() {
framework.SkipIfMissingResource(f.DynamicClient, CronJobGroupVersionResourceAlpha, f.Namespace.Name)
schedule := "*/5 * * * ?"
framework.RunKubectlOrDie("run", cjName, "--restart=OnFailure", "--generator=cronjob/v2alpha1",
"--schedule="+schedule, "--image="+busyboxImage, nsFlag)
By("verifying the CronJob " + cjName + " was created")
sj, err := c.BatchV1beta1().CronJobs(ns).Get(cjName, metav1.GetOptions{})
if err != nil {
framework.Failf("Failed getting CronJob %s: %v", cjName, err)
}
if sj.Spec.Schedule != schedule {
framework.Failf("Failed creating a CronJob with correct schedule %s", schedule)
}
containers := sj.Spec.JobTemplate.Spec.Template.Spec.Containers
if checkContainersImage(containers, busyboxImage) {
framework.Failf("Failed creating CronJob %s for 1 pod with expected image %s: %#v", cjName, busyboxImage, containers)
}
if sj.Spec.JobTemplate.Spec.Template.Spec.RestartPolicy != v1.RestartPolicyOnFailure {
framework.Failf("Failed creating a CronJob with correct restart policy for --restart=OnFailure")
}
})
})
})
var _ = SIGDescribe("Kubectl client", func() {
defer GinkgoRecover()
f := framework.NewDefaultFramework("kubectl")
// Reusable cluster state function. This won't be adversely affected by lazy initialization of framework.
clusterState := func() *framework.ClusterVerification {
return f.NewClusterVerification(
f.Namespace,
framework.PodStateVerification{
Selectors: map[string]string{"app": "redis"},
ValidPhases: []v1.PodPhase{v1.PodRunning /*v1.PodPending*/},
})
}
forEachPod := func(podFunc func(p v1.Pod)) {
clusterState().ForEach(podFunc)
}
var c clientset.Interface
var ns string
BeforeEach(func() {
c = f.ClientSet
ns = f.Namespace.Name
})
// Customized Wait / ForEach wrapper for this test. These demonstrate the
// idiomatic way to wrap the ClusterVerification structs for syntactic sugar in large
// test files.
// Print debug info if atLeast Pods are not found before the timeout
waitForOrFailWithDebug := func(atLeast int) {
pods, err := clusterState().WaitFor(atLeast, framework.PodStartTimeout)
if err != nil || len(pods) < atLeast {
// TODO: Generalize integrating debug info into these tests so we always get debug info when we need it
framework.DumpAllNamespaceInfo(f.ClientSet, ns)
framework.Failf("Verified %d of %d pods , error: %v", len(pods), atLeast, err)
}
}
debugDiscovery := func() {
home := os.Getenv("HOME")
if len(home) == 0 {
framework.Logf("no $HOME envvar set")
return
}
cacheDir := filepath.Join(home, ".kube", "cache", "discovery")
err := filepath.Walk(cacheDir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
// only pay attention to $host_$port/v1/serverresources.json files
subpath := strings.TrimPrefix(path, cacheDir+string(filepath.Separator))
parts := filepath.SplitList(subpath)
if len(parts) != 3 || parts[1] != "v1" || parts[2] != "serverresources.json" {
return nil
}
framework.Logf("%s modified at %s (current time: %s)", path, info.ModTime(), time.Now())
data, readError := ioutil.ReadFile(path)
if readError != nil {
framework.Logf("%s error: %v", path, readError)
} else {
framework.Logf("%s content: %s", path, string(data))
}
return nil
})
framework.Logf("scanned %s for discovery docs: %v", home, err)
}
framework.KubeDescribe("Update Demo", func() {
var nautilus, kitten string
BeforeEach(func() {
updateDemoRoot := "test/fixtures/doc-yaml/user-guide/update-demo"
nautilus = substituteImageName(string(generated.ReadOrDie(filepath.Join(updateDemoRoot, "nautilus-rc.yaml.in"))))
kitten = substituteImageName(string(generated.ReadOrDie(filepath.Join(updateDemoRoot, "kitten-rc.yaml.in"))))
})
/*
Release : v1.9
Testname: Kubectl, replication controller
Description: Create a Pod and a container with a given image. Configure replication controller to run 2 replicas. The number of running instances of the Pod MUST equal the number of replicas set on the replication controller which is 2.
*/
framework.ConformanceIt("should create and stop a replication controller ", func() {
defer cleanupKubectlInputs(nautilus, ns, updateDemoSelector)
By("creating a replication controller")
framework.RunKubectlOrDieInput(nautilus, "create", "-f", "-", fmt.Sprintf("--namespace=%v", ns))
framework.ValidateController(c, nautilusImage, 2, "update-demo", updateDemoSelector, getUDData("nautilus.jpg", ns), ns)
})
/*
Release : v1.9
Testname: Kubectl, scale replication controller
Description: Create a Pod and a container with a given image. Configure replication controller to run 2 replicas. The number of running instances of the Pod MUST equal the number of replicas set on the replication controller which is 2. Update the replicaset to 1. Number of running instances of the Pod MUST be 1. Update the replicaset to 2. Number of running instances of the Pod MUST be 2.
*/
framework.ConformanceIt("should scale a replication controller ", func() {
defer cleanupKubectlInputs(nautilus, ns, updateDemoSelector)
By("creating a replication controller")
framework.RunKubectlOrDieInput(nautilus, "create", "-f", "-", fmt.Sprintf("--namespace=%v", ns))
framework.ValidateController(c, nautilusImage, 2, "update-demo", updateDemoSelector, getUDData("nautilus.jpg", ns), ns)
By("scaling down the replication controller")
debugDiscovery()
framework.RunKubectlOrDie("scale", "rc", "update-demo-nautilus", "--replicas=1", "--timeout=5m", fmt.Sprintf("--namespace=%v", ns))
framework.ValidateController(c, nautilusImage, 1, "update-demo", updateDemoSelector, getUDData("nautilus.jpg", ns), ns)
By("scaling up the replication controller")
debugDiscovery()
framework.RunKubectlOrDie("scale", "rc", "update-demo-nautilus", "--replicas=2", "--timeout=5m", fmt.Sprintf("--namespace=%v", ns))
framework.ValidateController(c, nautilusImage, 2, "update-demo", updateDemoSelector, getUDData("nautilus.jpg", ns), ns)
})
/*
Release : v1.9
Testname: Kubectl, rolling update replication controller
Description: Create a Pod and a container with a given image. Configure replication controller to run 2 replicas. The number of running instances of the Pod MUST equal the number of replicas set on the replication controller which is 2. Run a rolling update to run a different version of the container. All running instances SHOULD now be running the newer version of the container as part of the rolling update.
*/
framework.ConformanceIt("should do a rolling update of a replication controller ", func() {
By("creating the initial replication controller")
framework.RunKubectlOrDieInput(string(nautilus[:]), "create", "-f", "-", fmt.Sprintf("--namespace=%v", ns))
framework.ValidateController(c, nautilusImage, 2, "update-demo", updateDemoSelector, getUDData("nautilus.jpg", ns), ns)
By("rolling-update to new replication controller")
debugDiscovery()
framework.RunKubectlOrDieInput(string(kitten[:]), "rolling-update", "update-demo-nautilus", "--update-period=1s", "-f", "-", fmt.Sprintf("--namespace=%v", ns))
framework.ValidateController(c, kittenImage, 2, "update-demo", updateDemoSelector, getUDData("kitten.jpg", ns), ns)
// Everything will hopefully be cleaned up when the namespace is deleted.
})
})
framework.KubeDescribe("Guestbook application", func() {
forEachGBFile := func(run func(s string)) {
guestbookRoot := "test/e2e/testing-manifests/guestbook"
for _, gbAppFile := range []string{
"redis-slave-service.yaml",
"redis-master-service.yaml",
"frontend-service.yaml",
"frontend-deployment.yaml.in",
"redis-master-deployment.yaml.in",
"redis-slave-deployment.yaml.in",
} {
contents := substituteImageName(string(generated.ReadOrDie(filepath.Join(guestbookRoot, gbAppFile))))
run(contents)
}
}
/*
Release : v1.9
Testname: Kubectl, guestbook application
Description: Create Guestbook application that contains redis server, 2 instances of redis slave, frontend application, frontend service and redis master service and redis slave service. Using frontend service, the test will write an entry into the guestbook application which will store the entry into the backend redis database. Application flow MUST work as expected and the data written MUST be available to read.
*/
framework.ConformanceIt("should create and stop a working application ", func() {
defer forEachGBFile(func(contents string) {
cleanupKubectlInputs(contents, ns)
})
By("creating all guestbook components")
forEachGBFile(func(contents string) {
framework.Logf(contents)
framework.RunKubectlOrDieInput(contents, "create", "-f", "-", fmt.Sprintf("--namespace=%v", ns))
})
By("validating guestbook app")
validateGuestbookApp(c, ns)
})
})
framework.KubeDescribe("Simple pod", func() {
podYaml := substituteImageName(string(readTestFileOrDie("pod-with-readiness-probe.yaml.in")))
BeforeEach(func() {
By(fmt.Sprintf("creating the pod from %v", podYaml))
framework.RunKubectlOrDieInput(podYaml, "create", "-f", "-", fmt.Sprintf("--namespace=%v", ns))
Expect(framework.CheckPodsRunningReady(c, ns, []string{simplePodName}, framework.PodStartTimeout)).To(BeTrue())
})
AfterEach(func() {
cleanupKubectlInputs(podYaml, ns, simplePodSelector)
})
It("should support exec", func() {
By("executing a command in the container")
execOutput := framework.RunKubectlOrDie("exec", fmt.Sprintf("--namespace=%v", ns), simplePodName, "echo", "running", "in", "container")
if e, a := "running in container", strings.TrimSpace(execOutput); e != a {
framework.Failf("Unexpected kubectl exec output. Wanted %q, got %q", e, a)
}
By("executing a very long command in the container")
veryLongData := make([]rune, 20000)
for i := 0; i < len(veryLongData); i++ {
veryLongData[i] = 'a'
}
execOutput = framework.RunKubectlOrDie("exec", fmt.Sprintf("--namespace=%v", ns), simplePodName, "echo", string(veryLongData))
Expect(string(veryLongData)).To(Equal(strings.TrimSpace(execOutput)), "Unexpected kubectl exec output")
By("executing a command in the container with noninteractive stdin")
execOutput = framework.NewKubectlCommand("exec", fmt.Sprintf("--namespace=%v", ns), "-i", simplePodName, "cat").
WithStdinData("abcd1234").
ExecOrDie()
if e, a := "abcd1234", execOutput; e != a {
framework.Failf("Unexpected kubectl exec output. Wanted %q, got %q", e, a)
}
// pretend that we're a user in an interactive shell
r, closer, err := newBlockingReader("echo hi\nexit\n")
if err != nil {
framework.Failf("Error creating blocking reader: %v", err)
}
// NOTE this is solely for test cleanup!
defer closer.Close()
By("executing a command in the container with pseudo-interactive stdin")
execOutput = framework.NewKubectlCommand("exec", fmt.Sprintf("--namespace=%v", ns), "-i", simplePodName, "sh").
WithStdinReader(r).
ExecOrDie()
if e, a := "hi", strings.TrimSpace(execOutput); e != a {
framework.Failf("Unexpected kubectl exec output. Wanted %q, got %q", e, a)
}
})
It("should support exec through an HTTP proxy", func() {
// Fail if the variable isn't set
if framework.TestContext.Host == "" {
framework.Failf("--host variable must be set to the full URI to the api server on e2e run.")
}
By("Starting goproxy")
testSrv, proxyLogs := startLocalProxy()
defer testSrv.Close()
proxyAddr := testSrv.URL
for _, proxyVar := range []string{"https_proxy", "HTTPS_PROXY"} {
proxyLogs.Reset()
By("Running kubectl via an HTTP proxy using " + proxyVar)
output := framework.NewKubectlCommand(fmt.Sprintf("--namespace=%s", ns), "exec", "nginx", "echo", "running", "in", "container").
WithEnv(append(os.Environ(), fmt.Sprintf("%s=%s", proxyVar, proxyAddr))).
ExecOrDie()
// Verify we got the normal output captured by the exec server
expectedExecOutput := "running in container\n"
if output != expectedExecOutput {
framework.Failf("Unexpected kubectl exec output. Wanted %q, got %q", expectedExecOutput, output)
}
// Verify the proxy server logs saw the connection
expectedProxyLog := fmt.Sprintf("Accepting CONNECT to %s", strings.TrimRight(strings.TrimLeft(framework.TestContext.Host, "https://"), "/api"))
proxyLog := proxyLogs.String()
if !strings.Contains(proxyLog, expectedProxyLog) {
framework.Failf("Missing expected log result on proxy server for %s. Expected: %q, got %q", proxyVar, expectedProxyLog, proxyLog)
}
}
})
It("should support exec through kubectl proxy", func() {
// Fail if the variable isn't set
if framework.TestContext.Host == "" {
framework.Failf("--host variable must be set to the full URI to the api server on e2e run.")
}
By("Starting kubectl proxy")
port, proxyCmd, err := startProxyServer()
framework.ExpectNoError(err)
defer framework.TryKill(proxyCmd)
//proxyLogs.Reset()
host := fmt.Sprintf("--server=http://127.0.0.1:%d", port)
By("Running kubectl via kubectl proxy using " + host)
output := framework.NewKubectlCommand(
host, fmt.Sprintf("--namespace=%s", ns),
"exec", "nginx", "echo", "running", "in", "container",
).ExecOrDie()
// Verify we got the normal output captured by the exec server
expectedExecOutput := "running in container\n"
if output != expectedExecOutput {
framework.Failf("Unexpected kubectl exec output. Wanted %q, got %q", expectedExecOutput, output)
}
})
It("should return command exit codes", func() {
nsFlag := fmt.Sprintf("--namespace=%v", ns)
By("execing into a container with a successful command")
_, err := framework.NewKubectlCommand(nsFlag, "exec", "nginx", "--", "/bin/sh", "-c", "exit 0").Exec()
framework.ExpectNoError(err)
By("execing into a container with a failing command")
_, err = framework.NewKubectlCommand(nsFlag, "exec", "nginx", "--", "/bin/sh", "-c", "exit 42").Exec()
ee, ok := err.(uexec.ExitError)
Expect(ok).To(Equal(true))
Expect(ee.ExitStatus()).To(Equal(42))
By("running a successful command")
_, err = framework.NewKubectlCommand(nsFlag, "run", "-i", "--image="+busyboxImage, "--restart=Never", "success", "--", "/bin/sh", "-c", "exit 0").Exec()
framework.ExpectNoError(err)
By("running a failing command")
_, err = framework.NewKubectlCommand(nsFlag, "run", "-i", "--image="+busyboxImage, "--restart=Never", "failure-1", "--", "/bin/sh", "-c", "exit 42").Exec()
ee, ok = err.(uexec.ExitError)
Expect(ok).To(Equal(true))
Expect(ee.ExitStatus()).To(Equal(42))
By("running a failing command without --restart=Never")
_, err = framework.NewKubectlCommand(nsFlag, "run", "-i", "--image="+busyboxImage, "--restart=OnFailure", "failure-2", "--", "/bin/sh", "-c", "cat && exit 42").
WithStdinData("abcd1234").
Exec()
framework.ExpectNoError(err)
By("running a failing command without --restart=Never, but with --rm")
_, err = framework.NewKubectlCommand(nsFlag, "run", "-i", "--image="+busyboxImage, "--restart=OnFailure", "--rm", "failure-3", "--", "/bin/sh", "-c", "cat && exit 42").
WithStdinData("abcd1234").
Exec()
framework.ExpectNoError(err)
framework.WaitForPodToDisappear(f.ClientSet, ns, "failure-3", labels.Everything(), 2*time.Second, wait.ForeverTestTimeout)
By("running a failing command with --leave-stdin-open")
_, err = framework.NewKubectlCommand(nsFlag, "run", "-i", "--image="+busyboxImage, "--restart=Never", "failure-4", "--leave-stdin-open", "--", "/bin/sh", "-c", "exit 42").
WithStdinData("abcd1234").
Exec()
framework.ExpectNoError(err)
})
It("should support inline execution and attach", func() {
nsFlag := fmt.Sprintf("--namespace=%v", ns)
By("executing a command with run and attach with stdin")
runOutput := framework.NewKubectlCommand(nsFlag, "run", "run-test", "--image="+busyboxImage, "--restart=OnFailure", "--attach=true", "--stdin", "--", "sh", "-c", "cat && echo 'stdin closed'").
WithStdinData("abcd1234").
ExecOrDie()
Expect(runOutput).To(ContainSubstring("abcd1234"))
Expect(runOutput).To(ContainSubstring("stdin closed"))
Expect(c.BatchV1().Jobs(ns).Delete("run-test", nil)).To(BeNil())
By("executing a command with run and attach without stdin")
runOutput = framework.NewKubectlCommand(fmt.Sprintf("--namespace=%v", ns), "run", "run-test-2", "--image="+busyboxImage, "--restart=OnFailure", "--attach=true", "--leave-stdin-open=true", "--", "sh", "-c", "cat && echo 'stdin closed'").
WithStdinData("abcd1234").
ExecOrDie()
Expect(runOutput).ToNot(ContainSubstring("abcd1234"))
Expect(runOutput).To(ContainSubstring("stdin closed"))
Expect(c.BatchV1().Jobs(ns).Delete("run-test-2", nil)).To(BeNil())
By("executing a command with run and attach with stdin with open stdin should remain running")
runOutput = framework.NewKubectlCommand(nsFlag, "run", "run-test-3", "--image="+busyboxImage, "--restart=OnFailure", "--attach=true", "--leave-stdin-open=true", "--stdin", "--", "sh", "-c", "cat && echo 'stdin closed'").
WithStdinData("abcd1234\n").
ExecOrDie()
Expect(runOutput).ToNot(ContainSubstring("stdin closed"))
g := func(pods []*v1.Pod) sort.Interface { return sort.Reverse(controller.ActivePods(pods)) }
runTestPod, _, err := polymorphichelpers.GetFirstPod(f.ClientSet.CoreV1(), ns, "run=run-test-3", 1*time.Minute, g)
if err != nil {
os.Exit(1)
}
if !framework.CheckPodsRunningReady(c, ns, []string{runTestPod.Name}, time.Minute) {
framework.Failf("Pod %q of Job %q should still be running", runTestPod.Name, "run-test-3")
}
// NOTE: we cannot guarantee our output showed up in the container logs before stdin was closed, so we have
// to loop test.
err = wait.PollImmediate(time.Second, time.Minute, func() (bool, error) {
if !framework.CheckPodsRunningReady(c, ns, []string{runTestPod.Name}, 1*time.Second) {
framework.Failf("Pod %q of Job %q should still be running", runTestPod.Name, "run-test-3")
}
logOutput := framework.RunKubectlOrDie(nsFlag, "logs", runTestPod.Name)
Expect(logOutput).ToNot(ContainSubstring("stdin closed"))
return strings.Contains(logOutput, "abcd1234"), nil
})
if err != nil {
os.Exit(1)
}
Expect(err).To(BeNil())
Expect(c.BatchV1().Jobs(ns).Delete("run-test-3", nil)).To(BeNil())
})
It("should support port-forward", func() {
By("forwarding the container port to a local port")
cmd := runPortForward(ns, simplePodName, simplePodPort)
defer cmd.Stop()
By("curling local port output")
localAddr := fmt.Sprintf("http://localhost:%d", cmd.port)
body, err := curl(localAddr)
framework.Logf("got: %s", body)
if err != nil {
framework.Failf("Failed http.Get of forwarded port (%s): %v", localAddr, err)
}
if !strings.Contains(body, nginxDefaultOutput) {
framework.Failf("Container port output missing expected value. Wanted:'%s', got: %s", nginxDefaultOutput, body)
}
})
It("should handle in-cluster config", func() {
By("adding rbac permissions")
// grant the view permission widely to allow inspection of the `invalid` namespace and the default namespace
framework.BindClusterRole(f.ClientSet.RbacV1beta1(), "view", f.Namespace.Name,
rbacv1beta1.Subject{Kind: rbacv1beta1.ServiceAccountKind, Namespace: f.Namespace.Name, Name: "default"})
err := framework.WaitForAuthorizationUpdate(f.ClientSet.AuthorizationV1beta1(),
serviceaccount.MakeUsername(f.Namespace.Name, "default"),
f.Namespace.Name, "list", schema.GroupResource{Resource: "pods"}, true)
framework.ExpectNoError(err)
By("overriding icc with values provided by flags")
kubectlPath := framework.TestContext.KubectlPath
// we need the actual kubectl binary, not the script wrapper
kubectlPathNormalizer := exec.Command("which", kubectlPath)
if strings.HasSuffix(kubectlPath, "kubectl.sh") {
kubectlPathNormalizer = exec.Command(kubectlPath, "path")
}
kubectlPathNormalized, err := kubectlPathNormalizer.Output()
framework.ExpectNoError(err)
kubectlPath = strings.TrimSpace(string(kubectlPathNormalized))
inClusterHost := strings.TrimSpace(framework.RunHostCmdOrDie(ns, simplePodName, "printenv KUBERNETES_SERVICE_HOST"))
inClusterPort := strings.TrimSpace(framework.RunHostCmdOrDie(ns, simplePodName, "printenv KUBERNETES_SERVICE_PORT"))
framework.Logf("copying %s to the %s pod", kubectlPath, simplePodName)
framework.RunKubectlOrDie("cp", kubectlPath, ns+"/"+simplePodName+":/tmp/")
// Build a kubeconfig file that will make use of the injected ca and token,
// but point at the DNS host and the default namespace
tmpDir, err := ioutil.TempDir("", "icc-override")
overrideKubeconfigName := "icc-override.kubeconfig"
framework.ExpectNoError(err)
defer func() { os.Remove(tmpDir) }()
framework.ExpectNoError(ioutil.WriteFile(filepath.Join(tmpDir, overrideKubeconfigName), []byte(`
kind: Config
apiVersion: v1
clusters:
- cluster:
api-version: v1
server: https://kubernetes.default.svc:443
certificate-authority: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
name: kubeconfig-cluster
contexts:
- context:
cluster: kubeconfig-cluster
namespace: default
user: kubeconfig-user
name: kubeconfig-context
current-context: kubeconfig-context
users:
- name: kubeconfig-user
user:
tokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
`), os.FileMode(0755)))
framework.Logf("copying override kubeconfig to the %s pod", simplePodName)
framework.RunKubectlOrDie("cp", filepath.Join(tmpDir, overrideKubeconfigName), ns+"/"+simplePodName+":/tmp/")
framework.ExpectNoError(ioutil.WriteFile(filepath.Join(tmpDir, "invalid-configmap-with-namespace.yaml"), []byte(`
kind: ConfigMap
apiVersion: v1
metadata:
name: "configmap with namespace and invalid name"
namespace: configmap-namespace
`), os.FileMode(0755)))
framework.ExpectNoError(ioutil.WriteFile(filepath.Join(tmpDir, "invalid-configmap-without-namespace.yaml"), []byte(`
kind: ConfigMap
apiVersion: v1
metadata:
name: "configmap without namespace and invalid name"
`), os.FileMode(0755)))
framework.Logf("copying configmap manifests to the %s pod", simplePodName)
framework.RunKubectlOrDie("cp", filepath.Join(tmpDir, "invalid-configmap-with-namespace.yaml"), ns+"/"+simplePodName+":/tmp/")
framework.RunKubectlOrDie("cp", filepath.Join(tmpDir, "invalid-configmap-without-namespace.yaml"), ns+"/"+simplePodName+":/tmp/")
By("getting pods with in-cluster configs")
execOutput := framework.RunHostCmdOrDie(ns, simplePodName, "/tmp/kubectl get pods --v=7 2>&1")
Expect(execOutput).To(MatchRegexp("nginx +1/1 +Running"))
Expect(execOutput).To(ContainSubstring("Using in-cluster namespace"))
Expect(execOutput).To(ContainSubstring("Using in-cluster configuration"))
By("creating an object containing a namespace with in-cluster config")
_, err = framework.RunHostCmd(ns, simplePodName, "/tmp/kubectl create -f /tmp/invalid-configmap-with-namespace.yaml --v=7 2>&1")
Expect(err).To(ContainSubstring("Using in-cluster namespace"))
Expect(err).To(ContainSubstring("Using in-cluster configuration"))
Expect(err).To(ContainSubstring(fmt.Sprintf("POST https://%s:%s/api/v1/namespaces/configmap-namespace/configmaps", inClusterHost, inClusterPort)))
By("creating an object not containing a namespace with in-cluster config")
_, err = framework.RunHostCmd(ns, simplePodName, "/tmp/kubectl create -f /tmp/invalid-configmap-without-namespace.yaml --v=7 2>&1")
Expect(err).To(ContainSubstring("Using in-cluster namespace"))
Expect(err).To(ContainSubstring("Using in-cluster configuration"))
Expect(err).To(ContainSubstring(fmt.Sprintf("POST https://%s:%s/api/v1/namespaces/%s/configmaps", inClusterHost, inClusterPort, f.Namespace.Name)))
By("trying to use kubectl with invalid token")
_, err = framework.RunHostCmd(ns, simplePodName, "/tmp/kubectl get pods --token=invalid --v=7 2>&1")
framework.Logf("got err %v", err)
Expect(err).To(HaveOccurred())
Expect(err).To(ContainSubstring("Using in-cluster namespace"))
Expect(err).To(ContainSubstring("Using in-cluster configuration"))
Expect(err).To(ContainSubstring("Authorization: Bearer invalid"))
Expect(err).To(ContainSubstring("Response Status: 401 Unauthorized"))
By("trying to use kubectl with invalid server")
_, err = framework.RunHostCmd(ns, simplePodName, "/tmp/kubectl get pods --server=invalid --v=6 2>&1")
framework.Logf("got err %v", err)
Expect(err).To(HaveOccurred())
Expect(err).To(ContainSubstring("Unable to connect to the server"))
Expect(err).To(ContainSubstring("GET http://invalid/api"))
By("trying to use kubectl with invalid namespace")
execOutput = framework.RunHostCmdOrDie(ns, simplePodName, "/tmp/kubectl get pods --namespace=invalid --v=6 2>&1")
Expect(execOutput).To(ContainSubstring("No resources found"))
Expect(execOutput).ToNot(ContainSubstring("Using in-cluster namespace"))
Expect(execOutput).To(ContainSubstring("Using in-cluster configuration"))
Expect(execOutput).To(MatchRegexp(fmt.Sprintf("GET http[s]?://%s:%s/api/v1/namespaces/invalid/pods", inClusterHost, inClusterPort)))
By("trying to use kubectl with kubeconfig")
execOutput = framework.RunHostCmdOrDie(ns, simplePodName, "/tmp/kubectl get pods --kubeconfig=/tmp/"+overrideKubeconfigName+" --v=6 2>&1")
Expect(execOutput).ToNot(ContainSubstring("Using in-cluster namespace"))
Expect(execOutput).ToNot(ContainSubstring("Using in-cluster configuration"))
Expect(execOutput).To(ContainSubstring("GET https://kubernetes.default.svc:443/api/v1/namespaces/default/pods"))
})
})
framework.KubeDescribe("Kubectl api-versions", func() {
/*
Release : v1.9
Testname: Kubectl, check version v1
Description: Run kubectl to get api versions, output MUST contain returned versions with ‘v1’ listed.
*/
framework.ConformanceIt("should check if v1 is in available api versions ", func() {
By("validating api versions")
output := framework.RunKubectlOrDie("api-versions")
if !strings.Contains(output, "v1") {
framework.Failf("No v1 in kubectl api-versions")
}
})
})
framework.KubeDescribe("Kubectl apply", func() {
It("should apply a new configuration to an existing RC", func() {
controllerJson := substituteImageName(string(readTestFileOrDie(redisControllerFilename)))
nsFlag := fmt.Sprintf("--namespace=%v", ns)
By("creating Redis RC")
framework.RunKubectlOrDieInput(controllerJson, "create", "-f", "-", nsFlag)
By("applying a modified configuration")
stdin := modifyReplicationControllerConfiguration(controllerJson)
framework.NewKubectlCommand("apply", "-f", "-", nsFlag).
WithStdinReader(stdin).
ExecOrDie()
By("checking the result")
forEachReplicationController(c, ns, "app", "redis", validateReplicationControllerConfiguration)
})
It("should reuse port when apply to an existing SVC", func() {
serviceJson := readTestFileOrDie(redisServiceFilename)
nsFlag := fmt.Sprintf("--namespace=%v", ns)
By("creating Redis SVC")
framework.RunKubectlOrDieInput(string(serviceJson[:]), "create", "-f", "-", nsFlag)
By("getting the original port")
originalNodePort := framework.RunKubectlOrDie("get", "service", "redis-master", nsFlag, "-o", "jsonpath={.spec.ports[0].port}")
By("applying the same configuration")
framework.RunKubectlOrDieInput(string(serviceJson[:]), "apply", "-f", "-", nsFlag)
By("getting the port after applying configuration")
currentNodePort := framework.RunKubectlOrDie("get", "service", "redis-master", nsFlag, "-o", "jsonpath={.spec.ports[0].port}")
By("checking the result")
if originalNodePort != currentNodePort {
framework.Failf("port should keep the same")
}
})
It("apply set/view last-applied", func() {
deployment1Yaml := substituteImageName(string(readTestFileOrDie(nginxDeployment1Filename)))
deployment2Yaml := substituteImageName(string(readTestFileOrDie(nginxDeployment2Filename)))
deployment3Yaml := substituteImageName(string(readTestFileOrDie(nginxDeployment3Filename)))
nsFlag := fmt.Sprintf("--namespace=%v", ns)
By("deployment replicas number is 2")
framework.RunKubectlOrDieInput(deployment1Yaml, "apply", "-f", "-", nsFlag)
By("check the last-applied matches expectations annotations")
output := framework.RunKubectlOrDieInput(deployment1Yaml, "apply", "view-last-applied", "-f", "-", nsFlag, "-o", "json")
requiredString := "\"replicas\": 2"
if !strings.Contains(output, requiredString) {
framework.Failf("Missing %s in kubectl view-last-applied", requiredString)
}
By("apply file doesn't have replicas")
framework.RunKubectlOrDieInput(deployment2Yaml, "apply", "set-last-applied", "-f", "-", nsFlag)
By("check last-applied has been updated, annotations doesn't replicas")
output = framework.RunKubectlOrDieInput(deployment1Yaml, "apply", "view-last-applied", "-f", "-", nsFlag, "-o", "json")
requiredString = "\"replicas\": 2"
if strings.Contains(output, requiredString) {
framework.Failf("Missing %s in kubectl view-last-applied", requiredString)
}
By("scale set replicas to 3")
nginxDeploy := "nginx-deployment"
debugDiscovery()
framework.RunKubectlOrDie("scale", "deployment", nginxDeploy, "--replicas=3", nsFlag)
By("apply file doesn't have replicas but image changed")
framework.RunKubectlOrDieInput(deployment3Yaml, "apply", "-f", "-", nsFlag)
By("verify replicas still is 3 and image has been updated")
output = framework.RunKubectlOrDieInput(deployment3Yaml, "get", "-f", "-", nsFlag, "-o", "json")
requiredItems := []string{"\"replicas\": 3", imageutils.GetE2EImage(imageutils.Nginx)}
for _, item := range requiredItems {
if !strings.Contains(output, item) {
framework.Failf("Missing %s in kubectl apply", item)
}
}
})
})
framework.KubeDescribe("Kubectl cluster-info", func() {
/*
Release : v1.9
Testname: Kubectl, cluster info
Description: Call kubectl to get cluster-info, output MUST contain cluster-info returned and Kubernetes Master SHOULD be running.
*/
framework.ConformanceIt("should check if Kubernetes master services is included in cluster-info ", func() {
By("validating cluster-info")
output := framework.RunKubectlOrDie("cluster-info")
// Can't check exact strings due to terminal control commands (colors)
requiredItems := []string{"Kubernetes master", "is running at"}
for _, item := range requiredItems {
if !strings.Contains(output, item) {
framework.Failf("Missing %s in kubectl cluster-info", item)
}
}
})
})
framework.KubeDescribe("Kubectl describe", func() {
/*
Release : v1.9
Testname: Kubectl, describe pod or rc
Description: Deploy a redis controller and a redis service. Kubectl describe pods SHOULD return the name, namespace, labels, state and other information as expected. Kubectl describe on rc, service, node and namespace SHOULD also return proper information.
*/
framework.ConformanceIt("should check if kubectl describe prints relevant information for rc and pods ", func() {
kv, err := framework.KubectlVersion()
Expect(err).NotTo(HaveOccurred())
framework.SkipUnlessServerVersionGTE(kv, c.Discovery())
controllerJson := substituteImageName(string(readTestFileOrDie(redisControllerFilename)))
serviceJson := readTestFileOrDie(redisServiceFilename)
nsFlag := fmt.Sprintf("--namespace=%v", ns)
framework.RunKubectlOrDieInput(controllerJson, "create", "-f", "-", nsFlag)
framework.RunKubectlOrDieInput(string(serviceJson[:]), "create", "-f", "-", nsFlag)
By("Waiting for Redis master to start.")
waitForOrFailWithDebug(1)
// Pod
forEachPod(func(pod v1.Pod) {
output := framework.RunKubectlOrDie("describe", "pod", pod.Name, nsFlag)
requiredStrings := [][]string{
{"Name:", "redis-master-"},
{"Namespace:", ns},
{"Node:"},
{"Labels:", "app=redis"},
{"role=master"},
{"Annotations:"},
{"Status:", "Running"},
{"IP:"},
{"Controlled By:", "ReplicationController/redis-master"},
{"Image:", redisImage},
{"State:", "Running"},
{"QoS Class:", "BestEffort"},
}
checkOutput(output, requiredStrings)
})
// Rc
requiredStrings := [][]string{
{"Name:", "redis-master"},
{"Namespace:", ns},
{"Selector:", "app=redis,role=master"},
{"Labels:", "app=redis"},
{"role=master"},
{"Annotations:"},
{"Replicas:", "1 current", "1 desired"},
{"Pods Status:", "1 Running", "0 Waiting", "0 Succeeded", "0 Failed"},
{"Pod Template:"},
{"Image:", redisImage},
{"Events:"}}
checkKubectlOutputWithRetry(requiredStrings, "describe", "rc", "redis-master", nsFlag)
// Service
output := framework.RunKubectlOrDie("describe", "service", "redis-master", nsFlag)
requiredStrings = [][]string{
{"Name:", "redis-master"},
{"Namespace:", ns},
{"Labels:", "app=redis"},
{"role=master"},
{"Annotations:"},
{"Selector:", "app=redis", "role=master"},
{"Type:", "ClusterIP"},
{"IP:"},
{"Port:", "<unset>", "6379/TCP"},
{"Endpoints:"},
{"Session Affinity:", "None"}}
checkOutput(output, requiredStrings)
// Node
// It should be OK to list unschedulable Nodes here.
nodes, err := c.CoreV1().Nodes().List(metav1.ListOptions{})
Expect(err).NotTo(HaveOccurred())
node := nodes.Items[0]
output = framework.RunKubectlOrDie("describe", "node", node.Name)
requiredStrings = [][]string{
{"Name:", node.Name},
{"Labels:"},
{"Annotations:"},
{"CreationTimestamp:"},
{"Conditions:"},
{"Type", "Status", "LastHeartbeatTime", "LastTransitionTime", "Reason", "Message"},
{"Addresses:"},
{"Capacity:"},
{"Version:"},
{"Kernel Version:"},
{"OS Image:"},
{"Container Runtime Version:"},
{"Kubelet Version:"},
{"Kube-Proxy Version:"},
{"Pods:"}}
checkOutput(output, requiredStrings)
// Namespace
output = framework.RunKubectlOrDie("describe", "namespace", ns)
requiredStrings = [][]string{
{"Name:", ns},
{"Labels:"},
{"Annotations:"},
{"Status:", "Active"}}
checkOutput(output, requiredStrings)
// Quota and limitrange are skipped for now.
})
})
framework.KubeDescribe("Kubectl expose", func() {
/*
Release : v1.9
Testname: Kubectl, create service, replication controller
Description: Create a Pod running redis master listening to port 6379. Using kubectl expose the redis master replication controllers at port 1234. Validate that the replication controller is listening on port 1234 and the target port is set to 6379, port that redis master is listening. Using kubectl expose the redis master as a service at port 2345. The service MUST be listening on port 2345 and the target port is set to 6379, port that redis master is listening.
*/
framework.ConformanceIt("should create services for rc ", func() {
controllerJson := substituteImageName(string(readTestFileOrDie(redisControllerFilename)))
nsFlag := fmt.Sprintf("--namespace=%v", ns)
redisPort := 6379
By("creating Redis RC")
framework.Logf("namespace %v", ns)
framework.RunKubectlOrDieInput(controllerJson, "create", "-f", "-", nsFlag)
// It may take a while for the pods to get registered in some cases, wait to be sure.
By("Waiting for Redis master to start.")
waitForOrFailWithDebug(1)
forEachPod(func(pod v1.Pod) {
framework.Logf("wait on redis-master startup in %v ", ns)
framework.LookForStringInLog(ns, pod.Name, "redis-master", "The server is now ready to accept connections", framework.PodStartTimeout)
})
validateService := func(name string, servicePort int, timeout time.Duration) {
err := wait.Poll(framework.Poll, timeout, func() (bool, error) {
endpoints, err := c.CoreV1().Endpoints(ns).Get(name, metav1.GetOptions{})
if err != nil {
// log the real error
framework.Logf("Get endpoints failed (interval %v): %v", framework.Poll, err)
// if the error is API not found or could not find default credentials or TLS handshake timeout, try again
if apierrs.IsNotFound(err) ||
apierrs.IsUnauthorized(err) ||
apierrs.IsServerTimeout(err) {
err = nil
}
return false, err
}
uidToPort := framework.GetContainerPortsByPodUID(endpoints)
if len(uidToPort) == 0 {
framework.Logf("No endpoint found, retrying")
return false, nil
}
if len(uidToPort) > 1 {