forked from kubernetes/test-infra
-
Notifications
You must be signed in to change notification settings - Fork 0
/
extract_k8s.go
606 lines (544 loc) · 17.2 KB
/
extract_k8s.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
/*
Copyright 2017 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 main
import (
"bytes"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
"strings"
"time"
"k8s.io/test-infra/kubetest/util"
)
type extractMode int
const (
none extractMode = iota
localBazel // local bazel
local // local
gci // gci/FAMILY
gciCi // gci/FAMILY/CI_VERSION
gke // gke(deprecated), gke-default, gke-latest, gke-channel-CHANNEL_NAME
ci // ci/latest, ci/latest-1.5
rc // release/latest, release/latest-1.5
stable // release/stable, release/stable-1.5
version // v1.5.0, v1.5.0-beta.2
gcs // gs://bucket/prefix/v1.6.0-alpha.0
load // Load a --save cluster
bazel // A pre/postsubmit bazel build version, prefixed with bazel/
)
type extractStrategy struct {
mode extractMode
option string
ciVersion string
value string
}
type extractStrategies []extractStrategy
func (l *extractStrategies) String() string {
s := []string{}
for _, e := range *l {
s = append(s, e.value)
}
return strings.Join(s, ",")
}
// Converts --extract=release/stable, etc into an extractStrategy{}
func (l *extractStrategies) Set(value string) error {
var strategies = map[string]extractMode{
`^(bazel)$`: localBazel,
`^(local)`: local,
`^gke-?(default|channel-(rapid|regular|stable)|latest(-\d+.\d+(.\d+(-gke)?)?)?)?$`: gke,
`^gci/([\w-]+)$`: gci,
`^gci/([\w-]+)/(.+)$`: gciCi,
`^ci/(.+)$`: ci,
`^release/(latest.*)$`: rc,
`^release/(stable.*)$`: stable,
`^(v\d+\.\d+\.\d+[\w.\-+]*)$`: version,
`^(gs://.*)$`: gcs,
`^(bazel/.*)$`: bazel,
}
if len(*l) == 2 {
return fmt.Errorf("May only define at most 2 --extract strategies: %v %v", *l, value)
}
for search, mode := range strategies {
re := regexp.MustCompile(search)
mat := re.FindStringSubmatch(value)
if mat == nil {
continue
}
e := extractStrategy{
mode: mode,
option: mat[1],
value: value,
}
if len(mat) > 2 {
e.ciVersion = mat[2]
}
*l = append(*l, e)
return nil
}
return fmt.Errorf("Unknown extraction strategy: %v", value)
}
func (l *extractStrategies) Type() string {
return "exactStrategies"
}
// True when this kubetest invocation wants to download and extract a release.
func (l *extractStrategies) Enabled() bool {
return len(*l) > 0
}
func (e extractStrategy) name() string {
return filepath.Base(e.option)
}
func (l extractStrategies) Extract(project, zone, region string, extractSrc bool) error {
// rm -rf kubernetes*
files, err := ioutil.ReadDir(".")
if err != nil {
return err
}
for _, file := range files {
name := file.Name()
if !strings.HasPrefix(name, "kubernetes") {
continue
}
log.Printf("rm %s", name)
if err = os.RemoveAll(name); err != nil {
return err
}
}
for i, e := range l {
if i > 0 {
// TODO(fejta): new strategy so we support more than 2 --extracts
if err := os.Rename("kubernetes", "kubernetes_skew"); err != nil {
return err
}
}
if err := e.Extract(project, zone, region, extractSrc); err != nil {
return err
}
}
return nil
}
// Find get-kube.sh at PWD, in PATH or else download it.
func ensureKube() (string, error) {
// Does get-kube.sh exist in pwd?
i, err := os.Stat("./get-kube.sh")
if err == nil && !i.IsDir() && i.Mode()&0111 > 0 {
return "./get-kube.sh", nil
}
// How about in the path?
p, err := exec.LookPath("get-kube.sh")
if err == nil {
return p, nil
}
// Download it to a temp file
f, err := ioutil.TempFile("", "get-kube")
if err != nil {
return "", err
}
defer f.Close()
if err := httpRead("https://get.k8s.io", f); err != nil {
return "", err
}
i, err = f.Stat()
if err != nil {
return "", err
}
if err := os.Chmod(f.Name(), i.Mode()|0111); err != nil {
return "", err
}
return f.Name(), nil
}
// Download named binaries for kubernetes
func getNamedBinaries(url, version, tarball string, retry int) error {
f, err := os.Create(tarball)
if err != nil {
return err
}
defer f.Close()
full := fmt.Sprintf("%s/%s/%s", url, version, tarball)
for i := 0; i < retry; i++ {
log.Printf("downloading %v from %v", tarball, full)
if err := httpRead(full, f); err == nil {
break
}
err = fmt.Errorf("url=%s version=%s failed get %v: %v", url, version, tarball, err)
if i == retry-1 {
return err
}
log.Println(err)
sleep(time.Duration(i) * time.Second)
}
f.Close()
o, err := control.Output(exec.Command("md5sum", f.Name()))
if err != nil {
return err
}
log.Printf("md5sum: %s", o)
cwd, err := os.Getwd()
if err != nil {
return fmt.Errorf("unable to get current directory: %v", err)
}
log.Printf("Extracting tar file %v into directory %v", f.Name(), cwd)
if err = control.FinishRunning(exec.Command("tar", "-xzf", f.Name())); err != nil {
return err
}
return nil
}
var (
sleep = time.Sleep
)
// Calls KUBERNETES_RELEASE_URL=url KUBERNETES_RELEASE=version get-kube.sh.
// This will download version from the specified url subdir and extract
// the tarballs.
var getKube = func(url, version string, getSrc bool) error {
// TODO(krzyzacy): migrate rest of the get-kube.sh logic into kubetest, using getNamedBinaries
// get/extract the src tarball first since bazel needs a clean tree
if getSrc {
cwd, err := os.Getwd()
if err != nil {
return err
}
if cwd != "kubernetes" {
if err = os.Mkdir("kubernetes", 0755); err != nil {
return err
}
if err = os.Chdir("kubernetes"); err != nil {
return err
}
}
if err := os.Setenv("KUBE_GIT_VERSION", version); err != nil {
return err
}
if err := getNamedBinaries(url, version, "kubernetes-src.tar.gz", 3); err != nil {
return err
}
}
k, err := ensureKube()
if err != nil {
return err
}
if err := os.Setenv("KUBERNETES_RELEASE_URL", url); err != nil {
return err
}
if err := os.Setenv("KUBERNETES_RELEASE", version); err != nil {
return err
}
if err := os.Setenv("KUBERNETES_SKIP_CONFIRM", "y"); err != nil {
return err
}
if err := os.Setenv("KUBERNETES_SKIP_CREATE_CLUSTER", "y"); err != nil {
return err
}
if err := os.Setenv("KUBERNETES_DOWNLOAD_TESTS", "y"); err != nil {
return err
}
// kube-up in cluster/gke/util.sh depends on this
if err := os.Setenv("CLUSTER_API_VERSION", version[1:]); err != nil {
return err
}
log.Printf("U=%s R=%s get-kube.sh", url, version)
for i := 0; i < 3; i++ {
err = control.FinishRunning(exec.Command(k))
if err == nil {
break
}
err = fmt.Errorf("U=%s R=%s get-kube.sh failed: %v", url, version, err)
if i == 2 {
return err
}
log.Println(err)
sleep(time.Duration(i) * time.Second)
}
return nil
}
// wrapper for gsutil cat
var gsutilCat = func(url string) ([]byte, error) {
return control.Output(exec.Command("gsutil", "cat", url))
}
func setReleaseFromGcs(prefix, suffix string, getSrc bool) error {
url := fmt.Sprintf("https://storage.googleapis.com/%v", prefix)
release, err := gsutilCat(fmt.Sprintf("gs://%v/%v.txt", prefix, suffix))
if err != nil {
return err
}
return getKube(url, strings.TrimSpace(string(release)), getSrc)
}
var httpCat = func(url string) ([]byte, error) {
resp, err := http.Get(url)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("Unexpected HTTP status code: %d", resp.StatusCode)
}
release, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
return release, nil
}
func setReleaseFromHTTP(prefix, suffix string, getSrc bool) error {
url := fmt.Sprintf("https://storage.googleapis.com/%s", prefix)
release, err := httpCat(fmt.Sprintf("%s/%s.txt", url, suffix))
if err != nil {
return err
}
return getKube(url, strings.TrimSpace(string(release)), getSrc)
}
func setupGciVars(family string) (string, error) {
p := "container-vm-image-staging"
b, err := control.Output(exec.Command("gcloud", "compute", "images", "describe-from-family", family, fmt.Sprintf("--project=%v", p), "--format=value(name)"))
if err != nil {
return "", err
}
i := strings.TrimSpace(string(b))
g := "gci"
m := map[string]string{
"KUBE_GCE_MASTER_PROJECT": p,
"KUBE_GCE_MASTER_IMAGE": i,
"KUBE_MASTER_OS_DISTRIBUTION": g,
"KUBE_GCE_NODE_PROJECT": p,
"KUBE_GCE_NODE_IMAGE": i,
"KUBE_NODE_OS_DISTRIBUTION": g,
"BUILD_METADATA_GCE_MASTER_IMAGE": i,
"BUILD_METADATA_GCE_NODE_IMAGE": i,
"KUBE_OS_DISTRIBUTION": g,
}
if family == "gci-canary-test" {
var b bytes.Buffer
if err := httpRead("https://api.github.com/repos/docker/docker/releases", &b); err != nil {
return "", err
}
var v []map[string]interface{}
if err := json.NewDecoder(&b).Decode(&v); err != nil {
return "", err
}
// We want 1.13.0
m["KUBE_GCI_DOCKER_VERSION"] = v[0]["name"].(string)[1:]
}
for k, v := range m {
log.Printf("export %s=%s", k, v)
if err := os.Setenv(k, v); err != nil {
return "", err
}
}
return i, nil
}
func setReleaseFromGci(image string, getSrc bool) error {
b, err := gsutilCat(fmt.Sprintf("gs://container-vm-image-staging/k8s-version-map/%s", image))
if err != nil {
return err
}
r := fmt.Sprintf("v%s", b)
return getKube("https://storage.googleapis.com/kubernetes-release/release", strings.TrimSpace(r), getSrc)
}
func (e extractStrategy) Extract(project, zone, region string, extractSrc bool) error {
switch e.mode {
case localBazel:
vFile := util.K8s("kubernetes", "bazel-bin", "version")
vByte, err := ioutil.ReadFile(vFile)
if err != nil {
return err
}
version := strings.TrimSpace(string(vByte))
log.Printf("extracting version %v\n", version)
root := util.K8s("kubernetes", "bazel-bin", "build")
src := filepath.Join(root, "release-tars")
dst := filepath.Join(root, version)
log.Printf("copying files from %v to %v\n", src, dst)
if err := os.Rename(src, dst); err != nil {
return err
}
return getKube(fmt.Sprintf("file://%s", root), version, extractSrc)
case local:
url := util.K8s("kubernetes", "_output", "gcs-stage")
files, err := ioutil.ReadDir(url)
if err != nil {
return err
}
var release string
for _, file := range files {
r := file.Name()
if strings.HasPrefix(r, "v") {
release = r
break
}
}
if len(release) == 0 {
return fmt.Errorf("No releases found in %v", url)
}
return getKube(fmt.Sprintf("file://%s", url), release, extractSrc)
case gci, gciCi:
if i, err := setupGciVars(e.option); err != nil {
return err
} else if e.ciVersion != "" {
return setReleaseFromGcs("kubernetes-release-dev/ci", e.ciVersion, extractSrc)
} else {
return setReleaseFromGci(i, extractSrc)
}
case gke:
// TODO(fejta): prod v staging v test
if project == "" {
return fmt.Errorf("--gcp-project unset")
}
if e.value == "gke" {
log.Print("*** --extract=gke is deprecated, migrate to --extract=gke-default ***")
}
if strings.HasPrefix(e.option, "latest") {
// get latest supported master version
releasePrefix := ""
if strings.HasPrefix(e.option, "latest-") {
releasePrefix = strings.TrimPrefix(e.option, "latest-")
}
version, err := getLatestGKEVersion(project, zone, region, releasePrefix)
if err != nil {
return fmt.Errorf("failed to get latest gke version: %s", err)
}
return getKube("https://storage.googleapis.com/gke-release-staging/kubernetes/release", version, extractSrc)
}
if strings.HasPrefix(e.option, "channel") {
// get latest supported master version
version, err := getChannelGKEVersion(project, zone, region, e.ciVersion)
if err != nil {
return fmt.Errorf("failed to get gke version from channel %s: %s", e.ciVersion, err)
}
return getKube("https://storage.googleapis.com/gke-release-staging/kubernetes/release", version, extractSrc)
}
// TODO(krzyzacy): clean up gke-default logic
if zone == "" {
return fmt.Errorf("--gcp-zone unset")
}
// get default cluster version for default extract strategy
ci, err := control.Output(exec.Command("gcloud", "container", "get-server-config", fmt.Sprintf("--project=%v", project), fmt.Sprintf("--zone=%v", zone), "--format=value(defaultClusterVersion)"))
if err != nil {
return err
}
re := regexp.MustCompile(`(\d+\.\d+)(\..+)?$`) // 1.11.7-beta.0 -> 1.11
mat := re.FindStringSubmatch(strings.TrimSpace(string(ci)))
if mat == nil {
return fmt.Errorf("failed to parse version from %s", ci)
}
// When JENKINS_USE_SERVER_VERSION=y, we launch the default version as determined
// by GKE, but pull the latest version of that branch for tests. e.g. if the default
// version is 1.5.3, we would pull test binaries at ci/latest-1.5.txt, but launch
// the default (1.5.3). We have to unset CLUSTER_API_VERSION here to allow GKE to
// launch the default.
// TODO(fejta): clean up this logic. Setting/unsetting the same env var is gross.
defer os.Unsetenv("CLUSTER_API_VERSION")
return setReleaseFromGcs("kubernetes-release-dev/ci", "latest-"+mat[1], extractSrc)
case ci:
if strings.HasPrefix(e.option, "gke-") {
return setReleaseFromGcs("gke-release-staging/kubernetes/release", e.option, extractSrc)
}
return setReleaseFromHTTP("kubernetes-release-dev/ci", e.option, extractSrc)
case rc, stable:
return setReleaseFromHTTP("kubernetes-release/release", e.option, extractSrc)
case version:
var url string
release := e.option
re := regexp.MustCompile(`(v\d+\.\d+\.\d+-gke.\d+)$`) // v1.8.0-gke.0
if re.FindStringSubmatch(release) != nil {
url = "https://storage.googleapis.com/gke-release-staging/kubernetes/release"
} else if strings.Contains(release, "+") {
url = "https://storage.googleapis.com/kubernetes-release-dev/ci"
} else {
url = "https://storage.googleapis.com/kubernetes-release/release"
}
return getKube(url, release, extractSrc)
case gcs:
// strip gs://foo/bar(.txt) -> foo/bar(.txt)
withoutGS := e.option[5:]
if strings.HasSuffix(e.option, ".txt") {
// foo/bar.txt -> bar
suffix := strings.TrimSuffix(path.Base(withoutGS), filepath.Ext(withoutGS))
return setReleaseFromGcs(path.Dir(withoutGS), suffix, extractSrc)
}
url := "https://storage.googleapis.com" + "/" + path.Dir(withoutGS)
return getKube(url, path.Base(withoutGS), extractSrc)
case load:
return loadState(e.option, extractSrc)
case bazel:
return getKube("", e.option, extractSrc)
}
return fmt.Errorf("Unrecognized extraction: %v(%v)", e.mode, e.value)
}
func loadKubeconfig(save string) error {
cURL, err := util.JoinURL(save, "kube-config")
if err != nil {
return fmt.Errorf("bad load url %s: %v", save, err)
}
if err := os.MkdirAll(util.Home(".kube"), 0775); err != nil {
return err
}
return control.FinishRunning(exec.Command("gsutil", "cp", cURL, util.Home(".kube", "config")))
}
func loadState(save string, getSrc bool) error {
log.Printf("Restore state from %s", save)
uURL, err := util.JoinURL(save, "release-url.txt")
if err != nil {
return fmt.Errorf("bad load url %s: %v", save, err)
}
rURL, err := util.JoinURL(save, "release.txt")
if err != nil {
return fmt.Errorf("bad load url %s: %v", save, err)
}
if err := loadKubeconfig(save); err != nil {
return fmt.Errorf("failed loading kubeconfig: %v", err)
}
url, err := gsutilCat(uURL)
if err != nil {
return err
}
release, err := gsutilCat(rURL)
if err != nil {
return err
}
return getKube(string(url), string(release), getSrc)
}
func saveState(save string) error {
url := os.Getenv("KUBERNETES_RELEASE_URL") // TODO(fejta): pass this in to saveState
version := os.Getenv("KUBERNETES_RELEASE")
log.Printf("Save U=%s R=%s to %s", url, version, save)
cURL, err := util.JoinURL(save, "kube-config")
if err != nil {
return fmt.Errorf("bad save url %s: %v", save, err)
}
uURL, err := util.JoinURL(save, "release-url.txt")
if err != nil {
return fmt.Errorf("bad save url %s: %v", save, err)
}
rURL, err := util.JoinURL(save, "release.txt")
if err != nil {
return fmt.Errorf("bad save url %s: %v", save, err)
}
if err := control.FinishRunning(exec.Command("gsutil", "cp", util.Home(".kube", "config"), cURL)); err != nil {
return fmt.Errorf("failed to save .kube/config to %s: %v", cURL, err)
}
if cmd, err := control.InputCommand(url, "gsutil", "cp", "-", uURL); err != nil {
return fmt.Errorf("failed to write url %s to %s: %v", url, uURL, err)
} else if err = control.FinishRunning(cmd); err != nil {
return fmt.Errorf("failed to upload url %s to %s: %v", url, uURL, err)
}
if cmd, err := control.InputCommand(version, "gsutil", "cp", "-", rURL); err != nil {
return fmt.Errorf("failed to write release %s to %s: %v", version, rURL, err)
} else if err = control.FinishRunning(cmd); err != nil {
return fmt.Errorf("failed to upload release %s to %s: %v", version, rURL, err)
}
return nil
}