-
Notifications
You must be signed in to change notification settings - Fork 0
/
rkt_tests.go
1047 lines (890 loc) · 29 KB
/
rkt_tests.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 rkt 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 main
import (
"bytes"
"crypto/sha512"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
"strconv"
"strings"
"syscall"
"testing"
"time"
"golang.org/x/crypto/openpgp"
"github.com/appc/spec/schema"
"github.com/appc/spec/schema/types"
"github.com/coreos/gexpect"
shellquote "github.com/kballard/go-shellquote"
"github.com/rkt/rkt/api/v1alpha"
"github.com/rkt/rkt/common"
"github.com/rkt/rkt/tests/testutils"
taas "github.com/rkt/rkt/tests/testutils/aci-server"
"google.golang.org/grpc"
)
const (
defaultTimeLayout = "2006-01-02 15:04:05.999 -0700 MST"
baseAppName = "rkt-inspect"
)
func expectCommon(p *gexpect.ExpectSubprocess, searchString string, timeout time.Duration) error {
var err error
p.Capture()
if timeout == 0 {
err = p.Expect(searchString)
} else {
err = p.ExpectTimeout(searchString, timeout)
}
if err != nil {
return fmt.Errorf(string(p.Collect()))
}
return nil
}
func expectWithOutput(p *gexpect.ExpectSubprocess, searchString string) error {
return expectCommon(p, searchString, 0)
}
func expectRegexWithOutput(p *gexpect.ExpectSubprocess, searchPattern string) ([]string, string, error) {
return p.ExpectRegexFindWithOutput(searchPattern)
}
func expectRegexTimeoutWithOutput(p *gexpect.ExpectSubprocess, searchPattern string, timeout time.Duration) ([]string, string, error) {
return p.ExpectTimeoutRegexFindWithOutput(searchPattern, timeout)
}
func expectTimeoutWithOutput(p *gexpect.ExpectSubprocess, searchString string, timeout time.Duration) error {
return expectCommon(p, searchString, timeout)
}
func patchACI(inputFileName, newFileName string, args ...string) string {
var allArgs []string
actool := testutils.GetValueFromEnvOrPanic("ACTOOL")
tmpDir := testutils.GetValueFromEnvOrPanic("FUNCTIONAL_TMP")
imagePath, err := filepath.Abs(filepath.Join(tmpDir, newFileName))
if err != nil {
panic(fmt.Sprintf("Cannot create ACI: %v\n", err))
}
allArgs = append(allArgs, "patch-manifest")
allArgs = append(allArgs, "--no-compression")
allArgs = append(allArgs, "--overwrite")
allArgs = append(allArgs, args...)
allArgs = append(allArgs, inputFileName)
allArgs = append(allArgs, imagePath)
output, err := exec.Command(actool, allArgs...).CombinedOutput()
if err != nil {
panic(fmt.Sprintf("Cannot create ACI: %v: %s\n", err, output))
}
return imagePath
}
func patchTestACI(newFileName string, args ...string) string {
image := getInspectImagePath()
return patchACI(image, newFileName, args...)
}
func spawnOrFail(t *testing.T, cmd string) *gexpect.ExpectSubprocess {
t.Logf("Spawning command: %v\n", cmd)
child, err := gexpect.Spawn(cmd)
if err != nil {
t.Fatalf("Cannot exec rkt: %v", err)
}
return child
}
// waitOrFail waits for the child to exit, draining all its output.
// If a non-negative return value is provided, child exit status must match.
func waitOrFail(t *testing.T, child *gexpect.ExpectSubprocess, expectedStatus int) {
bufOut := []string{}
// TODO(lucab): gexpect should accept those channels from the caller
ttyIn, ttyOut := child.AsyncInteractChannels()
close(ttyIn)
// drain output till gexpect closes the channel (on EOF or error)
for line := range ttyOut {
bufOut = append(bufOut, line)
}
err := child.Wait()
status, _ := common.GetExitStatus(err)
if expectedStatus >= 0 && status != expectedStatus {
t.Fatalf("rkt terminated with unexpected status %d, expected %d\nOutput:\n%s", status, expectedStatus, bufOut)
}
}
// waitPodReady waits for the pod supervisor to get ready, busy-looping until `timeout`
// while waiting for it. It returns the pod UUID or an error on failure.
func waitPodReady(ctx *testutils.RktRunCtx, t *testing.T, uuidFile string, timeout time.Duration) (string, error) {
var podUUID []byte
var err error
interval := 500 * time.Millisecond
elapsed := time.Duration(0)
for elapsed < timeout {
time.Sleep(interval)
elapsed += interval
podUUID, err = ioutil.ReadFile(uuidFile)
if err == nil {
break
}
}
if err != nil {
return "", fmt.Errorf("Can't read pod UUID: %v", err)
}
// wait up to one minute for the pod supervisor to be ready
cmd := strings.Fields(fmt.Sprintf("%s status --wait-ready=%s %s", ctx.Cmd(), timeout, podUUID))
statusCmd := exec.Command(cmd[0], cmd[1:]...)
t.Logf("Running command: %v\n", cmd)
output, err := statusCmd.CombinedOutput()
if err != nil {
return "", fmt.Errorf("Failed to wait for pod readiness, error %v output %v", err, string(output))
}
return string(podUUID), nil
}
// waitAppAttachable waits for an attachable application to get ready, busy-looping until `timeout`
// while waiting for it. It returns an error on failure.
func waitAppAttachable(ctx *testutils.RktRunCtx, t *testing.T, podUUID, appName string, timeout time.Duration) error {
var (
err error
output []byte
appNameFlag string
)
if appName != "" {
appNameFlag = "--app=" + appName
}
cmd := strings.Fields(fmt.Sprintf("%s attach --mode=list %s %s", ctx.Cmd(), appNameFlag, podUUID))
interval := 500 * time.Millisecond
elapsed := time.Duration(0)
for elapsed < timeout {
time.Sleep(interval)
elapsed += interval
statusCmd := exec.Command(cmd[0], cmd[1:]...)
output, err = statusCmd.CombinedOutput()
if err == nil {
break
}
}
if err != nil {
return fmt.Errorf("%s", output)
}
return nil
}
func spawnAndWaitOrFail(t *testing.T, cmd string, expectedStatus int) {
child := spawnOrFail(t, cmd)
waitOrFail(t, child, expectedStatus)
}
func getEmptyImagePath() string {
return testutils.GetValueFromEnvOrPanic("RKT_EMPTY_IMAGE")
}
func getInspectImagePath() string {
return testutils.GetValueFromEnvOrPanic("RKT_INSPECT_IMAGE")
}
func getHashOrPanic(path string) string {
hash, err := getHash(path)
if err != nil {
panic(fmt.Sprintf("Cannot get hash from file located at %v", path))
}
return hash
}
func getHash(filePath string) (string, error) {
f, err := os.Open(filePath)
if err != nil {
return "", fmt.Errorf("error opening file: %v", err)
}
hash := sha512.New()
r := io.TeeReader(f, hash)
if _, err := io.Copy(ioutil.Discard, r); err != nil {
return "", fmt.Errorf("error reading file: %v", err)
}
return hex.EncodeToString(hash.Sum(nil)), nil
}
func mustTempDir(dirName string) string {
tmpDir, err := ioutil.TempDir("", dirName)
if err != nil {
panic(fmt.Sprintf("Cannot create temp dir: %v", err))
}
return tmpDir
}
// createFileOrPanic creates an empty file within the given directory
// with a specified name. Panics if file creation fails for any reason.
func createFileOrPanic(dirName, fileName string) string {
name := filepath.Join(dirName, fileName)
file, err := os.Create(name)
if err != nil {
panic(err)
}
defer file.Close()
return name
}
func importImageAndFetchHashAsUidGid(t *testing.T, ctx *testutils.RktRunCtx, img string, fetchArgs string, uid int, gid int) (string, error) {
// Import the test image into store manually.
cmd := fmt.Sprintf("%s --insecure-options=image,tls fetch --pull-policy=new %s %s", ctx.Cmd(), fetchArgs, img)
// TODO(jonboulle): non-root user breaks trying to read root-written
// config directories. Should be a better way to approach this. Should
// config directories be readable by the rkt group too?
if gid != 0 {
cmd = fmt.Sprintf("%s --insecure-options=image,tls fetch --pull-policy=new %s %s", ctx.CmdNoConfig(), fetchArgs, img)
}
child, err := gexpect.Command(cmd)
if err != nil {
t.Fatalf("cannot create rkt command: %v", err)
}
if gid != 0 {
child.Cmd.SysProcAttr = &syscall.SysProcAttr{}
child.Cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
}
err = child.Start()
if err != nil {
t.Fatalf("cannot exec rkt: %v", err)
}
// Read out the image hash.
result, out, err := expectRegexWithOutput(child, "sha512-[0-9a-f]{32,64}")
if exitErr := checkExitStatus(child); exitErr != nil {
t.Logf("%v", exitErr)
return "", fmt.Errorf("fetching of %q failed", img)
}
if err != nil || len(result) != 1 {
t.Fatalf("Error: %v\nOutput: %v", err, out)
}
return result[0], nil
}
func importImageAndFetchHash(t *testing.T, ctx *testutils.RktRunCtx, fetchArgs string, img string) (string, error) {
return importImageAndFetchHashAsUidGid(t, ctx, fetchArgs, img, 0, 0)
}
func importImageAndRun(imagePath string, t *testing.T, ctx *testutils.RktRunCtx) {
cmd := fmt.Sprintf("%s --insecure-options=image run %s", ctx.Cmd(), imagePath)
spawnAndWaitOrFail(t, cmd, 0)
}
func importImageAndPrepare(imagePath string, t *testing.T, ctx *testutils.RktRunCtx) {
cmd := fmt.Sprintf("%s --insecure-options=image prepare %s", ctx.Cmd(), imagePath)
spawnAndWaitOrFail(t, cmd, 0)
}
func patchImportAndFetchHash(image string, patches []string, t *testing.T, ctx *testutils.RktRunCtx) (string, error) {
imagePath := patchTestACI(image, patches...)
defer os.Remove(imagePath)
return importImageAndFetchHash(t, ctx, "", imagePath)
}
func patchImportAndRun(image string, patches []string, t *testing.T, ctx *testutils.RktRunCtx) {
imagePath := patchTestACI(image, patches...)
defer os.Remove(imagePath)
cmd := fmt.Sprintf("%s --insecure-options=image run %s", ctx.Cmd(), imagePath)
spawnAndWaitOrFail(t, cmd, 0)
}
func patchImportAndPrepare(image string, patches []string, t *testing.T, ctx *testutils.RktRunCtx) {
imagePath := patchTestACI(image, patches...)
defer os.Remove(imagePath)
cmd := fmt.Sprintf("%s --insecure-options=image prepare %s", ctx.Cmd(), imagePath)
spawnAndWaitOrFail(t, cmd, 0)
}
func runGC(t *testing.T, ctx *testutils.RktRunCtx) {
cmd := fmt.Sprintf("%s gc --grace-period=0s", ctx.Cmd())
spawnAndWaitOrFail(t, cmd, 0)
}
func runImageGC(t *testing.T, ctx *testutils.RktRunCtx) {
cmd := fmt.Sprintf("%s image gc", ctx.Cmd())
spawnAndWaitOrFail(t, cmd, 0)
}
func removeFromCas(t *testing.T, ctx *testutils.RktRunCtx, hash string) {
cmd := fmt.Sprintf("%s image rm %s", ctx.Cmd(), hash)
spawnAndWaitOrFail(t, cmd, 0)
}
func runRktAndGetUUID(t *testing.T, rktCmd string) string {
child := spawnOrFail(t, rktCmd)
defer waitOrFail(t, child, 0)
result, out, err := expectRegexWithOutput(child, "[0-9a-f-]{36}")
if err != nil || len(result) != 1 {
t.Fatalf("Error: %v\nOutput: %v", err, out)
}
podIDStr := strings.TrimSpace(result[0])
podID, err := types.NewUUID(podIDStr)
if err != nil {
t.Fatalf("%q is not a valid UUID: %v", podIDStr, err)
}
return podID.String()
}
func runRktAsGidAndCheckOutput(t *testing.T, rktCmd, expectedLine string, expectError bool, gid int) {
nobodyUid, _ := testutils.GetUnprivilegedUidGid()
runRktAsUidGidAndCheckOutput(t, rktCmd, expectedLine, false, expectError, nobodyUid, gid)
}
func runRktAsGidAndCheckREOutput(t *testing.T, rktCmd, expectedLine string, expectError bool, gid int) {
nobodyUid, _ := testutils.GetUnprivilegedUidGid()
runRktAsUidGidAndCheckOutput(t, rktCmd, expectedLine, true, expectError, nobodyUid, gid)
}
func runRktAsUidGidAndCheckOutput(t *testing.T, rktCmd, expectedLine string, lineIsRegex, expectError bool, uid, gid int) {
child, err := gexpect.Command(rktCmd)
if err != nil {
t.Fatalf("cannot exec rkt: %v", err)
}
if gid != 0 {
child.Cmd.SysProcAttr = &syscall.SysProcAttr{}
child.Cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
}
err = child.Start()
if err != nil {
t.Fatalf("cannot start rkt: %v", err)
}
expectedStatus := 0
if expectError {
expectedStatus = 254
}
defer waitOrFail(t, child, expectedStatus)
if expectedLine != "" {
if lineIsRegex == true {
_, _, err := expectRegexWithOutput(child, expectedLine)
if err != nil {
t.Fatalf("didn't receive expected regex %q in output: %v", expectedLine, err)
}
} else {
err = expectWithOutput(child, expectedLine)
if err != nil {
t.Fatalf("didn't receive expected output %q: %v", expectedLine, err)
}
}
}
}
func runRkt(t *testing.T, rktCmd string, uid, gid int) (string, int) {
child, err := gexpect.Command(rktCmd)
if err != nil {
t.Fatalf("cannot exec rkt: %v", err)
}
if gid != 0 {
child.Cmd.SysProcAttr = &syscall.SysProcAttr{}
child.Cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
}
err = child.Start()
if err != nil {
t.Fatalf("cannot start rkt: %v", err)
}
_, linesChan := child.AsyncInteractChannels()
var buf bytes.Buffer
for line := range linesChan {
buf.WriteString(line + "\n") // reappend newline
}
status, _ := common.GetExitStatus(child.Wait())
return buf.String(), status
}
func startRktAsGidAndCheckOutput(t *testing.T, rktCmd, expectedLine string, gid int) *gexpect.ExpectSubprocess {
child, err := gexpect.Command(rktCmd)
if err != nil {
t.Fatalf("cannot exec rkt: %v", err)
}
if gid != 0 {
child.Cmd.SysProcAttr = &syscall.SysProcAttr{}
nobodyUid, _ := testutils.GetUnprivilegedUidGid()
child.Cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(nobodyUid), Gid: uint32(gid)}
}
if err := child.Start(); err != nil {
t.Fatalf("cannot exec rkt: %v", err)
}
if expectedLine != "" {
if err := expectWithOutput(child, expectedLine); err != nil {
t.Fatalf("didn't receive expected output %q: %v", expectedLine, err)
}
}
return child
}
func startRktAsUidGidAndCheckOutput(t *testing.T, rktCmd, expectedLine string, expectError bool, uid, gid int) *gexpect.ExpectSubprocess {
child, err := gexpect.Command(rktCmd)
if err != nil {
t.Fatalf("cannot exec rkt: %v", err)
}
if gid != 0 {
child.Cmd.SysProcAttr = &syscall.SysProcAttr{}
child.Cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
}
err = child.Start()
if err != nil {
t.Fatalf("cannot start rkt: %v", err)
}
if expectedLine != "" {
if err := expectWithOutput(child, expectedLine); err != nil {
t.Fatalf("didn't receive expected output %q: %v", expectedLine, err)
}
}
return child
}
func runRktAndCheckRegexOutput(t *testing.T, rktCmd, match string) error {
re, err := regexp.Compile(match)
if err != nil {
t.Fatalf("error compiling regex %q: %v", match, err)
}
args, err := shellquote.Split(rktCmd)
if err != nil {
t.Fatalf("error splitting cmd %q: %v", rktCmd, err)
}
path, err := exec.LookPath(args[0])
cmd := exec.Command(path, args[1:]...)
out, err := cmd.CombinedOutput()
result := re.MatchString(string(out))
if !result {
t.Fatalf("%q regex must be found\nOutput: %q", match, string(out))
}
return err
}
func runRktAndCheckOutput(t *testing.T, rktCmd, expectedLine string, expectError bool) {
runRktAsGidAndCheckOutput(t, rktCmd, expectedLine, expectError, 0)
}
func runRktAndCheckREOutput(t *testing.T, rktCmd, expectedLine string, expectError bool) {
runRktAsGidAndCheckREOutput(t, rktCmd, expectedLine, expectError, 0)
}
func startRktAndCheckOutput(t *testing.T, rktCmd, expectedLine string) *gexpect.ExpectSubprocess {
return startRktAsGidAndCheckOutput(t, rktCmd, expectedLine, 0)
}
func checkAppStatus(t *testing.T, ctx *testutils.RktRunCtx, multiApps bool, appName, expected string) {
cmd := fmt.Sprintf(`/bin/sh -c "`+
`UUID=$(%s list --full|grep '%s'|awk '{print $1}') ;`+
`echo -n 'status=' ;`+
`%s status $UUID|grep '^app-%s.*=[0-9]*$'|cut -d= -f2"`,
ctx.Cmd(), appName, ctx.Cmd(), appName)
if multiApps {
cmd = fmt.Sprintf(`/bin/sh -c "`+
`UUID=$(%s list --full|grep '^[a-f0-9]'|awk '{print $1}') ;`+
`echo -n 'status=' ;`+
`%s status $UUID|grep '^app-%s.*=[0-9]*$'|cut -d= -f2"`,
ctx.Cmd(), ctx.Cmd(), appName)
}
t.Logf("Get status for app %s\n", appName)
child := spawnOrFail(t, cmd)
defer waitOrFail(t, child, 0)
if err := expectWithOutput(child, expected); err != nil {
// For debugging purposes, print the full output of
// "rkt list" and "rkt status"
cmd := fmt.Sprintf(`%s list --full ;`+
`UUID=$(%s list --full|grep '^[a-f0-9]'|awk '{print $1}') ;`+
`%s status $UUID`,
ctx.Cmd(), ctx.Cmd(), ctx.Cmd())
out, err2 := exec.Command("/bin/sh", "-c", cmd).CombinedOutput()
if err2 != nil {
t.Logf("Could not run rkt status: %v. %s", err2, out)
} else {
t.Logf("%s\n", out)
}
t.Fatalf("Failed to get the status for app %s: expected: %s. %v",
appName, expected, err)
}
}
type imageInfo struct {
id string
name string
version string
importTime int64
size int64
manifest []byte
}
type appInfo struct {
name string
exitCode int
image *imageInfo
// TODO(yifan): Add app state.
}
type networkInfo struct {
name string
ipv4 string
}
type podInfo struct {
id string
pid int
state string
apps map[string]*appInfo
networks map[string]*networkInfo
manifest *schema.PodManifest
createdAt int64
startedAt int64
}
type imagePatch struct {
name string
patches []string
}
// parsePodInfo parses the 'rkt status $UUID' result into podInfo struct.
// For example, the 'result' can be:
// state=running
// networks=default:ip4=172.16.28.103
// pid=14352
// exited=false
// created=2016-04-01 19:12:03.447 -0700 PDT
// started=2016-04-01 19:12:04.279 -0700 PDT
func parsePodInfoOutput(t *testing.T, result string, p *podInfo) {
lines := strings.Split(strings.TrimSuffix(result, "\n"), "\n")
for _, line := range lines {
tuples := strings.SplitN(line, "=", 2)
if len(tuples) != 2 {
t.Logf("Unexpected line: %v", line)
continue
}
switch tuples[0] {
case "state":
p.state = tuples[1]
case "networks":
if tuples[1] == "" {
break
}
networks := strings.Split(tuples[1], ",")
for _, n := range networks {
fields := strings.Split(n, ":")
if len(fields) != 2 {
t.Fatalf("Unexpected network info format: %v", n)
}
ip4 := strings.Split(fields[1], "=")
if len(ip4) != 2 {
t.Fatalf("Unexpected network info format: %v", n)
}
networkName := fields[0]
p.networks[networkName] = &networkInfo{
name: networkName,
ipv4: ip4[1],
}
}
case "pid":
pid, err := strconv.Atoi(tuples[1])
if err != nil {
t.Fatalf("Cannot parse the pod's pid %q: %v", tuples[1], err)
}
p.pid = pid
case "created":
createdAt, err := time.Parse(defaultTimeLayout, tuples[1])
if err != nil {
t.Fatalf("Cannot parse the pod's creation time %q: %v", tuples[1], err)
}
p.createdAt = createdAt.UnixNano()
case "started":
startedAt, err := time.Parse(defaultTimeLayout, tuples[1])
if err != nil {
t.Fatalf("Cannot parse the pod's start time %q: %v", tuples[1], err)
}
p.startedAt = startedAt.UnixNano()
}
if strings.HasPrefix(tuples[0], "app-") {
exitCode, err := strconv.Atoi(tuples[1])
if err != nil {
t.Fatalf("cannot parse exit code from %q : %v", tuples[1], err)
}
appName := strings.TrimPrefix(tuples[0], "app-")
for _, app := range p.apps {
if app.name == appName {
app.exitCode = exitCode
break
}
}
}
}
if p.state == "" {
t.Fatalf("Unexpected empty state for pod")
}
if p.createdAt <= 0 {
t.Fatalf("Unexpected createdAt <= 0 for pod")
}
}
func getPodDir(t *testing.T, ctx *testutils.RktRunCtx, podID string) string {
podsDir := path.Join(ctx.DataDir(), "pods")
dirs, err := ioutil.ReadDir(podsDir)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
for _, dir := range dirs {
podDir := path.Join(podsDir, dir.Name(), podID)
if _, err := os.Stat(podDir); err == nil {
return podDir
}
}
t.Fatalf("Failed to find pod directory for pod %q", podID)
return ""
}
// getPodInfo returns the pod info for the given pod ID.
func getPodInfo(t *testing.T, ctx *testutils.RktRunCtx, podID string) *podInfo {
p := &podInfo{
id: podID,
pid: -1,
apps: make(map[string]*appInfo),
networks: make(map[string]*networkInfo),
}
// Read pod manifest.
output, err := exec.Command("/bin/bash", "-c", fmt.Sprintf("%s cat-manifest %s", ctx.Cmd(), podID)).CombinedOutput()
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
// Trim the last '\n' character.
mfst := bytes.TrimSpace(output)
// Fill app infos.
if err := json.Unmarshal(mfst, &p.manifest); err != nil {
t.Fatalf("Unexpected error: %v", err)
}
for _, app := range p.manifest.Apps {
appName := app.Name.String()
p.apps[appName] = &appInfo{
name: appName,
// TODO(yifan): Get the image's name.
image: &imageInfo{id: app.Image.ID.String()},
}
}
// Fill other infos.
output, _ = exec.Command("/bin/bash", "-c", fmt.Sprintf("%s status %s", ctx.Cmd(), podID)).CombinedOutput()
parsePodInfoOutput(t, string(output), p)
return p
}
// parseImageInfoOutput parses the 'rkt image list' result into imageInfo struct.
// For example, the 'result' can be:
// 'sha512-e9b77714dbbfda12cb9e136318b103a6f0ce082004d09d0224a620d2bbf38133 nginx:latest 2015-10-16 17:42:57.741 -0700 PDT true'
func parseImageInfoOutput(t *testing.T, result string) *imageInfo {
fields := regexp.MustCompile("\t+").Split(result, -1)
nameVersion := strings.Split(fields[1], ":")
if len(nameVersion) != 2 {
t.Fatalf("Failed to parse name version string: %q", fields[1])
}
importTime, err := time.Parse(defaultTimeLayout, fields[3])
if err != nil {
t.Fatalf("Failed to parse time string: %q", fields[3])
}
size, err := strconv.Atoi(fields[2])
if err != nil {
t.Fatalf("Failed to parse image size string: %q", fields[2])
}
return &imageInfo{
id: fields[0],
name: nameVersion[0],
version: nameVersion[1],
importTime: importTime.Unix(),
size: int64(size),
}
}
// getImageInfo returns the image info for the given image ID.
func getImageInfo(t *testing.T, ctx *testutils.RktRunCtx, imageID string) *imageInfo {
output, err := exec.Command("/bin/bash", "-c", fmt.Sprintf("%s image list --full | grep %s", ctx.Cmd(), imageID)).CombinedOutput()
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
imgInfo := parseImageInfoOutput(t, string(output))
// Get manifest
output, err = exec.Command("/bin/bash", "-c",
fmt.Sprintf("%s image cat-manifest --pretty-print=false %s", ctx.Cmd(), imageID)).CombinedOutput()
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
imgInfo.manifest = bytes.TrimSuffix(output, []byte{'\n'})
return imgInfo
}
func newAPIClientOrFail(t *testing.T, address string) (v1alpha.PublicAPIClient, *grpc.ClientConn) {
conn, err := grpc.Dial(address, grpc.WithInsecure())
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
c := v1alpha.NewPublicAPIClient(conn)
return c, conn
}
func runServer(t *testing.T, setup *taas.ServerSetup) *taas.Server {
server := taas.NewServer(setup)
go serverHandler(t, server)
return server
}
func serverHandler(t *testing.T, server *taas.Server) {
for {
select {
case msg, ok := <-server.Msg:
if ok {
t.Logf("server: %v", msg)
} else {
return
}
}
}
}
func runSignImage(t *testing.T, imagePath string, keyIndex int) string {
// keys stored in tests/secring.gpg.
keyFingerprint := ""
switch keyIndex {
case 1:
keyFingerprint = "D9DCEF41"
case 2:
keyFingerprint = "585091E3"
default:
panic("unknown key")
}
secringFile, err := os.Open("./secring.gpg")
if err != nil {
t.Fatalf("Cannot open secring.gpg file: %v", err)
}
defer secringFile.Close()
entityList, err := openpgp.ReadKeyRing(secringFile)
if err != nil {
t.Fatalf("Failed to read secring.gpg file: %v", err)
}
var signingEntity *openpgp.Entity
for _, entity := range entityList {
if entity.PrivateKey.KeyIdShortString() == keyFingerprint {
signingEntity = entity
}
}
imageFile, err := os.Open(imagePath)
if err != nil {
t.Fatalf("Cannot open image file %s: %v", imagePath, err)
}
defer imageFile.Close()
ascPath := fmt.Sprintf("%s.asc", imagePath)
ascFile, err := os.Create(ascPath)
if err != nil {
t.Fatalf("Cannot create asc file %s: %v", ascPath, err)
}
defer ascFile.Close()
err = openpgp.ArmoredDetachSign(ascFile, signingEntity, imageFile, nil)
if err != nil {
t.Fatalf("Cannot create armored detached signature: %v", err)
}
return ascPath
}
func runRktTrust(t *testing.T, ctx *testutils.RktRunCtx, prefix string, keyIndex int) {
var cmd string
keyFile := fmt.Sprintf("key%d.gpg", keyIndex)
if prefix == "" {
cmd = fmt.Sprintf(`%s trust --root %s`, ctx.Cmd(), keyFile)
} else {
cmd = fmt.Sprintf(`%s trust --prefix %s %s`, ctx.Cmd(), prefix, keyFile)
}
child := spawnOrFail(t, cmd)
defer waitOrFail(t, child, 0)
expected := "Are you sure you want to trust this key"
if err := expectWithOutput(child, expected); err != nil {
t.Fatalf("Expected but didn't find %q in %v", expected, err)
}
if err := child.SendLine("yes"); err != nil {
t.Fatalf("Cannot confirm rkt trust: %s", err)
}
if prefix == "" {
expected = "Added root key at"
} else {
expected = fmt.Sprintf(`Added key for prefix "%s" at`, prefix)
}
if err := expectWithOutput(child, expected); err != nil {
t.Fatalf("Expected but didn't find %q in %v", expected, err)
}
}
func generatePodManifestFile(t *testing.T, manifest *schema.PodManifest) string {
tmpDir := testutils.GetValueFromEnvOrPanic("FUNCTIONAL_TMP")
f, err := ioutil.TempFile(tmpDir, "rkt-test-manifest-")
if err != nil {
t.Fatalf("Cannot create tmp pod manifest: %v", err)
}
data, err := json.Marshal(manifest)
if err != nil {
t.Fatalf("Cannot marshal pod manifest: %v", err)
}
if err := ioutil.WriteFile(f.Name(), data, 0600); err != nil {
t.Fatalf("Cannot write pod manifest file: %v", err)
}
return f.Name()
}
func checkUserNS() error {
// CentOS 7 pretends to support user namespaces, but does not.
// See https://bugzilla.redhat.com/show_bug.cgi?id=1168776#c5
// Check if it really works
return exec.Command("/bin/bash", "-c", "unshare -U true").Run()
}
func authDir(confDir string) string {
return filepath.Join(confDir, "auth.d")
}
func pathsDir(confDir string) string {
return filepath.Join(confDir, "paths.d")
}
func stage1Dir(confDir string) string {
return filepath.Join(confDir, "stage1.d")
}
func writeConfig(t *testing.T, dir, filename, contents string) {
if err := os.MkdirAll(dir, 0755); err != nil {
t.Fatalf("Failed to create config directory %q: %v", dir, err)
}
path := filepath.Join(dir, filename)
os.Remove(path)
if err := ioutil.WriteFile(path, []byte(contents), 0644); err != nil {
t.Fatalf("Failed to write file %q: %v", path, err)
}
}
func verifyHostFile(t *testing.T, tmpdir, filename string, i int, expectedResult string) {
filePath := path.Join(tmpdir, filename)
defer os.Remove(filePath)
// Verify the file is written to host.
if strings.Contains(expectedResult, "host:") {
data, err := ioutil.ReadFile(filePath)
if err != nil {
t.Fatalf("%d: Cannot read the host file: %v", i, err)
}
if string(data) != expectedResult {
t.Fatalf("%d: Expecting %q in the host file, but saw %q", i, expectedResult, data)
}
}
}
func executeFuncsReverse(funcs []func()) {
n := len(funcs)
for i := n - 1; i >= 0; i-- {
funcs[i]()
}
}
func unmountPod(t *testing.T, ctx *testutils.RktRunCtx, uuid string, rmNetns bool) {
podDir := filepath.Join(ctx.DataDir(), "pods", "run", uuid)
stage1MntPath := filepath.Join(podDir, "stage1", "rootfs")
stage2MntPath := filepath.Join(stage1MntPath, "opt", "stage2", "rkt-inspect", "rootfs")
netnsPath := filepath.Join(podDir, "netns")
podNetNSPathBytes, err := ioutil.ReadFile(netnsPath)
// There may be no netns, e.g. kvm or --net=host
if err != nil {
if !os.IsNotExist(err) {
t.Fatalf(`cannot read "netns" stage1: %v`, err)
} else {
rmNetns = false
}
}
if err := syscall.Unmount(stage2MntPath, 0); err != nil {
t.Fatalf("cannot umount stage2: %v", err)
}
if err := syscall.Unmount(stage1MntPath, 0); err != nil {
t.Fatalf("cannot umount stage1: %v", err)
}
if rmNetns {
podNetNSPath := string(podNetNSPathBytes)
if err := syscall.Unmount(podNetNSPath, 0); err != nil {
t.Fatalf("cannot umount pod netns: %v", err)
}
_ = os.RemoveAll(podNetNSPath)
}
}