forked from kubernetes/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
util.sh
executable file
·3999 lines (3629 loc) · 150 KB
/
util.sh
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
#!/usr/bin/env bash
# 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.
# A library of helper functions and constant for the local config.
# Use the config file specified in $KUBE_CONFIG_FILE, or default to
# config-default.sh.
readonly GCE_MAX_LOCAL_SSD=8
KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
source "${KUBE_ROOT}/cluster/gce/${KUBE_CONFIG_FILE-"config-default.sh"}"
source "${KUBE_ROOT}/cluster/common.sh"
source "${KUBE_ROOT}/hack/lib/util.sh"
if [[ "${NODE_OS_DISTRIBUTION}" == "gci" || "${NODE_OS_DISTRIBUTION}" == "ubuntu" || "${NODE_OS_DISTRIBUTION}" == "custom" ]]; then
source "${KUBE_ROOT}/cluster/gce/${NODE_OS_DISTRIBUTION}/node-helper.sh"
else
echo "Cannot operate on cluster using node os distro: ${NODE_OS_DISTRIBUTION}" >&2
exit 1
fi
source "${KUBE_ROOT}/cluster/gce/windows/node-helper.sh"
if [[ "${MASTER_OS_DISTRIBUTION}" == "trusty" || "${MASTER_OS_DISTRIBUTION}" == "gci" || "${MASTER_OS_DISTRIBUTION}" == "ubuntu" ]]; then
source "${KUBE_ROOT}/cluster/gce/${MASTER_OS_DISTRIBUTION}/master-helper.sh"
else
echo "Cannot operate on cluster using master os distro: ${MASTER_OS_DISTRIBUTION}" >&2
exit 1
fi
if [[ ${NODE_LOCAL_SSDS:-} -ge 1 ]] && [[ ! -z ${NODE_LOCAL_SSDS_EXT:-} ]] ; then
echo -e "${color_red}Local SSD: Only one of NODE_LOCAL_SSDS and NODE_LOCAL_SSDS_EXT can be specified at once${color_norm}" >&2
exit 2
fi
if [[ "${MASTER_OS_DISTRIBUTION}" == "gci" ]]; then
DEFAULT_GCI_PROJECT=google-containers
if [[ "${GCI_VERSION}" == "cos"* ]]; then
DEFAULT_GCI_PROJECT=cos-cloud
fi
MASTER_IMAGE_PROJECT=${KUBE_GCE_MASTER_PROJECT:-${DEFAULT_GCI_PROJECT}}
# If the master image is not set, we use the latest GCI image.
# Otherwise, we respect whatever is set by the user.
MASTER_IMAGE=${KUBE_GCE_MASTER_IMAGE:-${GCI_VERSION}}
fi
# Sets node image based on the specified os distro. Currently this function only
# supports gci and debian.
#
# Requires:
# NODE_OS_DISTRIBUTION
# Sets:
# DEFAULT_GCI_PROJECT
# NODE_IMAGE
# NODE_IMAGE_PROJECT
function set-linux-node-image() {
if [[ "${NODE_OS_DISTRIBUTION}" == "gci" ]]; then
DEFAULT_GCI_PROJECT=google-containers
if [[ "${GCI_VERSION}" == "cos"* ]]; then
DEFAULT_GCI_PROJECT=cos-cloud
fi
# If the node image is not set, we use the latest GCI image.
# Otherwise, we respect whatever is set by the user.
NODE_IMAGE=${KUBE_GCE_NODE_IMAGE:-${GCI_VERSION}}
NODE_IMAGE_PROJECT=${KUBE_GCE_NODE_PROJECT:-${DEFAULT_GCI_PROJECT}}
fi
}
# Requires:
# WINDOWS_NODE_OS_DISTRIBUTION
# Sets:
# WINDOWS_NODE_IMAGE_PROJECT
# WINDOWS_NODE_IMAGE
function set-windows-node-image() {
WINDOWS_NODE_IMAGE_PROJECT="windows-cloud"
if [[ "${WINDOWS_NODE_OS_DISTRIBUTION}" == "win2019" ]]; then
WINDOWS_NODE_IMAGE="windows-server-2019-dc-core-for-containers-v20200114"
elif [[ "${WINDOWS_NODE_OS_DISTRIBUTION}" == "win1909" ]]; then
WINDOWS_NODE_IMAGE="windows-server-1909-dc-core-for-containers-v20200114"
elif [[ "${WINDOWS_NODE_OS_DISTRIBUTION}" == "win1809" ]]; then
WINDOWS_NODE_IMAGE="windows-server-1809-dc-core-for-containers-v20200114"
else
echo "Unknown WINDOWS_NODE_OS_DISTRIBUTION ${WINDOWS_NODE_OS_DISTRIBUTION}" >&2
exit 1
fi
}
set-linux-node-image
set-windows-node-image
# Verify cluster autoscaler configuration.
if [[ "${ENABLE_CLUSTER_AUTOSCALER}" == "true" ]]; then
if [[ -z $AUTOSCALER_MIN_NODES ]]; then
echo "AUTOSCALER_MIN_NODES not set."
exit 1
fi
if [[ -z $AUTOSCALER_MAX_NODES ]]; then
echo "AUTOSCALER_MAX_NODES not set."
exit 1
fi
fi
# These prefixes must not be prefixes of each other, so that they can be used to
# detect mutually exclusive sets of nodes.
NODE_INSTANCE_PREFIX=${NODE_INSTANCE_PREFIX:-"${INSTANCE_PREFIX}-minion"}
WINDOWS_NODE_INSTANCE_PREFIX=${WINDOWS_NODE_INSTANCE_PREFIX:-"${INSTANCE_PREFIX}-windows-node"}
NODE_TAGS="${NODE_TAG}"
ALLOCATE_NODE_CIDRS=true
PREEXISTING_NETWORK=false
PREEXISTING_NETWORK_MODE=""
KUBE_PROMPT_FOR_UPDATE=${KUBE_PROMPT_FOR_UPDATE:-"n"}
# How long (in seconds) to wait for cluster initialization.
KUBE_CLUSTER_INITIALIZATION_TIMEOUT=${KUBE_CLUSTER_INITIALIZATION_TIMEOUT:-300}
function join_csv() {
local IFS=','; echo "$*";
}
# This function returns the first string before the comma
function split_csv() {
echo "$*" | cut -d',' -f1
}
# Verify prereqs
function verify-prereqs() {
local cmd
# we use openssl to generate certs
kube::util::test_openssl_installed
# ensure a version supported by easyrsa is installed
if [ "$(openssl version | cut -d\ -f1)" == "LibreSSL" ]; then
echo "LibreSSL is not supported. Please ensure openssl points to an OpenSSL binary"
if [ "$(uname -s)" == "Darwin" ]; then
echo 'On macOS we recommend using homebrew and adding "$(brew --prefix openssl)/bin" to your PATH'
fi
exit 1
fi
# we use gcloud to create the cluster, gsutil to stage binaries and data
for cmd in gcloud gsutil; do
if ! which "${cmd}" >/dev/null; then
local resp="n"
if [[ "${KUBE_PROMPT_FOR_UPDATE}" == "y" ]]; then
echo "Can't find ${cmd} in PATH. Do you wish to install the Google Cloud SDK? [Y/n]"
read resp
fi
if [[ "${resp}" != "n" && "${resp}" != "N" ]]; then
curl https://sdk.cloud.google.com | bash
fi
if ! which "${cmd}" >/dev/null; then
echo "Can't find ${cmd} in PATH, please fix and retry. The Google Cloud " >&2
echo "SDK can be downloaded from https://cloud.google.com/sdk/." >&2
exit 1
fi
fi
done
update-or-verify-gcloud
}
# Use the gcloud defaults to find the project. If it is already set in the
# environment then go with that.
#
# Vars set:
# PROJECT
# NETWORK_PROJECT
# PROJECT_REPORTED
function detect-project() {
if [[ -z "${PROJECT-}" ]]; then
PROJECT=$(gcloud config list project --format 'value(core.project)')
fi
NETWORK_PROJECT=${NETWORK_PROJECT:-${PROJECT}}
if [[ -z "${PROJECT-}" ]]; then
echo "Could not detect Google Cloud Platform project. Set the default project using " >&2
echo "'gcloud config set project <PROJECT>'" >&2
exit 1
fi
if [[ -z "${PROJECT_REPORTED-}" ]]; then
echo "Project: ${PROJECT}" >&2
echo "Network Project: ${NETWORK_PROJECT}" >&2
echo "Zone: ${ZONE}" >&2
PROJECT_REPORTED=true
fi
}
# Use gsutil to get the md5 hash for a particular tar
function gsutil_get_tar_md5() {
# location_tar could be local or in the cloud
# local tar_location example ./_output/release-tars/kubernetes-server-linux-amd64.tar.gz
# cloud tar_location example gs://kubernetes-staging-PROJECT/kubernetes-devel/kubernetes-server-linux-amd64.tar.gz
local -r tar_location=$1
#parse the output and return the md5 hash
#the sed command at the end removes whitespace
local -r tar_md5=$(gsutil hash -h -m ${tar_location} 2>/dev/null | grep "Hash (md5):" | awk -F ':' '{print $2}' | sed 's/^[[:space:]]*//g')
echo "${tar_md5}"
}
# Copy a release tar and its accompanying hash.
function copy-to-staging() {
local -r staging_path=$1
local -r gs_url=$2
local -r tar=$3
local -r hash=$4
local -r basename_tar=$(basename ${tar})
#check whether this tar alread exists and has the same hash
#if it matches, then don't bother uploading it again
#remote_tar_md5 checks the remote location for the existing tarball and its md5
#staging_path example gs://kubernetes-staging-PROJECT/kubernetes-devel
#basename_tar example kubernetes-server-linux-amd64.tar.gz
local -r remote_tar_md5=$(gsutil_get_tar_md5 "${staging_path}/${basename_tar}")
if [[ -n ${remote_tar_md5} ]]; then
#local_tar_md5 checks the remote location for the existing tarball and its md5 hash
#tar example ./_output/release-tars/kubernetes-server-linux-amd64.tar.gz
local -r local_tar_md5=$(gsutil_get_tar_md5 "${tar}")
if [[ "${remote_tar_md5}" == "${local_tar_md5}" ]]; then
echo "+++ ${basename_tar} uploaded earlier, cloud and local file md5 match (md5 = ${local_tar_md5})"
return 0
fi
fi
echo "${hash}" > "${tar}.sha1"
gsutil -m -q -h "Cache-Control:private, max-age=0" cp "${tar}" "${tar}.sha1" "${staging_path}"
gsutil -m acl ch -g all:R "${gs_url}" "${gs_url}.sha1" >/dev/null 2>&1
echo "+++ ${basename_tar} uploaded (sha1 = ${hash})"
}
# Given the cluster zone, return the list of regional GCS release
# bucket suffixes for the release in preference order. GCS doesn't
# give us an API for this, so we hardcode it.
#
# Assumed vars:
# RELEASE_REGION_FALLBACK
# REGIONAL_KUBE_ADDONS
# ZONE
# Vars set:
# PREFERRED_REGION
function set-preferred-region() {
case ${ZONE} in
asia-*)
PREFERRED_REGION=("asia" "us" "eu")
;;
europe-*)
PREFERRED_REGION=("eu" "us" "asia")
;;
*)
PREFERRED_REGION=("us" "eu" "asia")
;;
esac
if [[ "${RELEASE_REGION_FALLBACK}" != "true" ]]; then
PREFERRED_REGION=( "${PREFERRED_REGION[0]}" )
fi
}
# Take the local tar files and upload them to Google Storage. They will then be
# downloaded by the master as part of the start up script for the master.
#
# Assumed vars:
# PROJECT
# SERVER_BINARY_TAR
# NODE_BINARY_TAR (optional)
# KUBE_MANIFESTS_TAR
# ZONE
# Vars set:
# SERVER_BINARY_TAR_URL
# SERVER_BINARY_TAR_HASH
# NODE_BINARY_TAR_URL
# NODE_BINARY_TAR_HASH
# KUBE_MANIFESTS_TAR_URL
# KUBE_MANIFESTS_TAR_HASH
function upload-tars() {
SERVER_BINARY_TAR_URL=
SERVER_BINARY_TAR_HASH=
NODE_BINARY_TAR_URL=
NODE_BINARY_TAR_HASH=
KUBE_MANIFESTS_TAR_URL=
KUBE_MANIFESTS_TAR_HASH=
local project_hash
if which md5 > /dev/null 2>&1; then
project_hash=$(md5 -q -s "$PROJECT")
else
project_hash=$(echo -n "$PROJECT" | md5sum | awk '{ print $1 }')
fi
# This requires 1 million projects before the probability of collision is 50%
# that's probably good enough for now :P
project_hash=${project_hash:0:10}
set-preferred-region
if [[ "${ENABLE_DOCKER_REGISTRY_CACHE:-}" == "true" ]]; then
DOCKER_REGISTRY_MIRROR_URL="https://mirror.gcr.io"
fi
SERVER_BINARY_TAR_HASH=$(sha1sum-file "${SERVER_BINARY_TAR}")
if [[ -n "${NODE_BINARY_TAR:-}" ]]; then
NODE_BINARY_TAR_HASH=$(sha1sum-file "${NODE_BINARY_TAR}")
fi
if [[ -n "${KUBE_MANIFESTS_TAR:-}" ]]; then
KUBE_MANIFESTS_TAR_HASH=$(sha1sum-file "${KUBE_MANIFESTS_TAR}")
fi
local server_binary_tar_urls=()
local node_binary_tar_urls=()
local kube_manifest_tar_urls=()
for region in "${PREFERRED_REGION[@]}"; do
suffix="-${region}"
if [[ "${suffix}" == "-us" ]]; then
suffix=""
fi
local staging_bucket="gs://kubernetes-staging-${project_hash}${suffix}"
# Ensure the buckets are created
if ! gsutil ls "${staging_bucket}" >/dev/null; then
echo "Creating ${staging_bucket}"
gsutil mb -l "${region}" "${staging_bucket}"
fi
local staging_path="${staging_bucket}/${INSTANCE_PREFIX}-devel"
echo "+++ Staging tars to Google Storage: ${staging_path}"
local server_binary_gs_url="${staging_path}/${SERVER_BINARY_TAR##*/}"
copy-to-staging "${staging_path}" "${server_binary_gs_url}" "${SERVER_BINARY_TAR}" "${SERVER_BINARY_TAR_HASH}"
if [[ -n "${NODE_BINARY_TAR:-}" ]]; then
local node_binary_gs_url="${staging_path}/${NODE_BINARY_TAR##*/}"
copy-to-staging "${staging_path}" "${node_binary_gs_url}" "${NODE_BINARY_TAR}" "${NODE_BINARY_TAR_HASH}"
fi
# Convert from gs:// URL to an https:// URL
server_binary_tar_urls+=("${server_binary_gs_url/gs:\/\//https://storage.googleapis.com/}")
if [[ -n "${NODE_BINARY_TAR:-}" ]]; then
node_binary_tar_urls+=("${node_binary_gs_url/gs:\/\//https://storage.googleapis.com/}")
fi
if [[ -n "${KUBE_MANIFESTS_TAR:-}" ]]; then
local kube_manifests_gs_url="${staging_path}/${KUBE_MANIFESTS_TAR##*/}"
copy-to-staging "${staging_path}" "${kube_manifests_gs_url}" "${KUBE_MANIFESTS_TAR}" "${KUBE_MANIFESTS_TAR_HASH}"
# Convert from gs:// URL to an https:// URL
kube_manifests_tar_urls+=("${kube_manifests_gs_url/gs:\/\//https://storage.googleapis.com/}")
fi
done
SERVER_BINARY_TAR_URL=$(join_csv "${server_binary_tar_urls[@]}")
if [[ -n "${NODE_BINARY_TAR:-}" ]]; then
NODE_BINARY_TAR_URL=$(join_csv "${node_binary_tar_urls[@]}")
fi
if [[ -n "${KUBE_MANIFESTS_TAR:-}" ]]; then
KUBE_MANIFESTS_TAR_URL=$(join_csv "${kube_manifests_tar_urls[@]}")
fi
}
# Detect Linux and Windows nodes created in the instance group.
#
# Assumed vars:
# NODE_INSTANCE_PREFIX
# WINDOWS_NODE_INSTANCE_PREFIX
# Vars set:
# NODE_NAMES
# INSTANCE_GROUPS
# WINDOWS_NODE_NAMES
# WINDOWS_INSTANCE_GROUPS
function detect-node-names() {
detect-project
INSTANCE_GROUPS=()
INSTANCE_GROUPS+=($(gcloud compute instance-groups managed list \
--project "${PROJECT}" \
--filter "name ~ '${NODE_INSTANCE_PREFIX}-.+' AND zone:(${ZONE})" \
--format='value(name)' || true))
WINDOWS_INSTANCE_GROUPS=()
WINDOWS_INSTANCE_GROUPS+=($(gcloud compute instance-groups managed list \
--project "${PROJECT}" \
--filter "name ~ '${WINDOWS_NODE_INSTANCE_PREFIX}-.+' AND zone:(${ZONE})" \
--format='value(name)' || true))
NODE_NAMES=()
if [[ -n "${INSTANCE_GROUPS[@]:-}" ]]; then
for group in "${INSTANCE_GROUPS[@]}"; do
NODE_NAMES+=($(gcloud compute instance-groups managed list-instances \
"${group}" --zone "${ZONE}" --project "${PROJECT}" \
--format='value(instance)'))
done
fi
# Add heapster node name to the list too (if it exists).
if [[ -n "${HEAPSTER_MACHINE_TYPE:-}" ]]; then
NODE_NAMES+=("${NODE_INSTANCE_PREFIX}-heapster")
fi
WINDOWS_NODE_NAMES=()
if [[ -n "${WINDOWS_INSTANCE_GROUPS[@]:-}" ]]; then
for group in "${WINDOWS_INSTANCE_GROUPS[@]}"; do
WINDOWS_NODE_NAMES+=($(gcloud compute instance-groups managed \
list-instances "${group}" --zone "${ZONE}" --project "${PROJECT}" \
--format='value(instance)'))
done
fi
echo "INSTANCE_GROUPS=${INSTANCE_GROUPS[*]:-}" >&2
echo "NODE_NAMES=${NODE_NAMES[*]:-}" >&2
}
# Detect the information about the minions
#
# Assumed vars:
# ZONE
# Vars set:
# NODE_NAMES
# KUBE_NODE_IP_ADDRESSES (array)
function detect-nodes() {
detect-project
detect-node-names
KUBE_NODE_IP_ADDRESSES=()
for (( i=0; i<${#NODE_NAMES[@]}; i++)); do
local node_ip=$(gcloud compute instances describe --project "${PROJECT}" --zone "${ZONE}" \
"${NODE_NAMES[$i]}" --format='value(networkInterfaces[0].accessConfigs[0].natIP)')
if [[ -z "${node_ip-}" ]] ; then
echo "Did not find ${NODE_NAMES[$i]}" >&2
else
echo "Found ${NODE_NAMES[$i]} at ${node_ip}"
KUBE_NODE_IP_ADDRESSES+=("${node_ip}")
fi
done
if [[ -z "${KUBE_NODE_IP_ADDRESSES-}" ]]; then
echo "Could not detect Kubernetes minion nodes. Make sure you've launched a cluster with 'kube-up.sh'" >&2
exit 1
fi
}
# Detect the IP for the master
#
# Assumed vars:
# MASTER_NAME
# ZONE
# REGION
# Vars set:
# KUBE_MASTER
# KUBE_MASTER_IP
function detect-master() {
detect-project
KUBE_MASTER=${MASTER_NAME}
echo "Trying to find master named '${MASTER_NAME}'" >&2
if [[ -z "${KUBE_MASTER_IP-}" ]]; then
local master_address_name="${MASTER_NAME}-ip"
echo "Looking for address '${master_address_name}'" >&2
if ! KUBE_MASTER_IP=$(gcloud compute addresses describe "${master_address_name}" \
--project "${PROJECT}" --region "${REGION}" -q --format='value(address)') || \
[[ -z "${KUBE_MASTER_IP-}" ]]; then
echo "Could not detect Kubernetes master node. Make sure you've launched a cluster with 'kube-up.sh'" >&2
exit 1
fi
fi
if [[ -z "${KUBE_MASTER_INTERNAL_IP-}" ]] && [[ ${GCE_PRIVATE_CLUSTER:-} == "true" ]]; then
local master_address_name="${MASTER_NAME}-internal-ip"
echo "Looking for address '${master_address_name}'" >&2
if ! KUBE_MASTER_INTERNAL_IP=$(gcloud compute addresses describe "${master_address_name}" \
--project "${PROJECT}" --region "${REGION}" -q --format='value(address)') || \
[[ -z "${KUBE_MASTER_INTERNAL_IP-}" ]]; then
echo "Could not detect Kubernetes master node. Make sure you've launched a cluster with 'kube-up.sh'" >&2
exit 1
fi
fi
echo "Using master: $KUBE_MASTER (external IP: $KUBE_MASTER_IP; internal IP: ${KUBE_MASTER_INTERNAL_IP:-(not set)})" >&2
}
function load-or-gen-kube-bearertoken() {
if [[ ! -z "${KUBE_CONTEXT:-}" ]]; then
get-kubeconfig-bearertoken
fi
if [[ -z "${KUBE_BEARER_TOKEN:-}" ]]; then
gen-kube-bearertoken
fi
}
# Figure out which binary use on the server and assure it is available.
# If KUBE_VERSION is specified use binaries specified by it, otherwise
# use local dev binaries.
#
# Assumed vars:
# KUBE_VERSION
# KUBE_RELEASE_VERSION_REGEX
# KUBE_CI_VERSION_REGEX
# Vars set:
# KUBE_TAR_HASH
# SERVER_BINARY_TAR_URL
# SERVER_BINARY_TAR_HASH
function tars_from_version() {
local sha1sum=""
if which sha1sum >/dev/null 2>&1; then
sha1sum="sha1sum"
else
sha1sum="shasum -a1"
fi
if [[ -z "${KUBE_VERSION-}" ]]; then
find-release-tars
upload-tars
elif [[ ${KUBE_VERSION} =~ ${KUBE_RELEASE_VERSION_REGEX} ]]; then
SERVER_BINARY_TAR_URL="https://storage.googleapis.com/kubernetes-release/release/${KUBE_VERSION}/kubernetes-server-linux-amd64.tar.gz"
# TODO: Clean this up.
KUBE_MANIFESTS_TAR_URL="${SERVER_BINARY_TAR_URL/server-linux-amd64/manifests}"
KUBE_MANIFESTS_TAR_HASH=$(curl ${KUBE_MANIFESTS_TAR_URL} --silent --show-error | ${sha1sum} | awk '{print $1}')
elif [[ ${KUBE_VERSION} =~ ${KUBE_CI_VERSION_REGEX} ]]; then
SERVER_BINARY_TAR_URL="https://storage.googleapis.com/kubernetes-release-dev/ci/${KUBE_VERSION}/kubernetes-server-linux-amd64.tar.gz"
# TODO: Clean this up.
KUBE_MANIFESTS_TAR_URL="${SERVER_BINARY_TAR_URL/server-linux-amd64/manifests}"
KUBE_MANIFESTS_TAR_HASH=$(curl ${KUBE_MANIFESTS_TAR_URL} --silent --show-error | ${sha1sum} | awk '{print $1}')
else
echo "Version doesn't match regexp" >&2
exit 1
fi
if ! SERVER_BINARY_TAR_HASH=$(curl -Ss --fail "${SERVER_BINARY_TAR_URL}.sha1"); then
echo "Failure trying to curl release .sha1"
fi
if ! curl -Ss --head "${SERVER_BINARY_TAR_URL}" >&/dev/null; then
echo "Can't find release at ${SERVER_BINARY_TAR_URL}" >&2
exit 1
fi
}
# Reads kube-env metadata from master
#
# Assumed vars:
# KUBE_MASTER
# PROJECT
# ZONE
function get-master-env() {
# TODO(zmerlynn): Make this more reliable with retries.
gcloud compute --project ${PROJECT} ssh --zone ${ZONE} ${KUBE_MASTER} --command \
"curl --fail --silent -H 'Metadata-Flavor: Google' \
'http://metadata/computeMetadata/v1/instance/attributes/kube-env'" 2>/dev/null
gcloud compute --project ${PROJECT} ssh --zone ${ZONE} ${KUBE_MASTER} --command \
"curl --fail --silent -H 'Metadata-Flavor: Google' \
'http://metadata/computeMetadata/v1/instance/attributes/kube-master-certs'" 2>/dev/null
}
# Quote something appropriate for a yaml string.
#
# TODO(zmerlynn): Note that this function doesn't so much "quote" as
# "strip out quotes", and we really should be using a YAML library for
# this, but PyYAML isn't shipped by default, and *rant rant rant ... SIGH*
function yaml-quote {
echo "'$(echo "${@:-}" | sed -e "s/'/''/g")'"
}
# Writes the cluster location into a temporary file.
# Assumed vars
# ZONE
function write-cluster-location {
cat >"${KUBE_TEMP}/cluster-location.txt" << EOF
${ZONE}
EOF
}
# Writes the cluster name into a temporary file.
# Assumed vars
# CLUSTER_NAME
function write-cluster-name {
cat >"${KUBE_TEMP}/cluster-name.txt" << EOF
${CLUSTER_NAME}
EOF
}
function write-master-env {
# If the user requested that the master be part of the cluster, set the
# environment variable to program the master kubelet to register itself.
if [[ "${REGISTER_MASTER_KUBELET:-}" == "true" && -z "${KUBELET_APISERVER:-}" ]]; then
KUBELET_APISERVER="${MASTER_NAME}"
fi
if [[ -z "${KUBERNETES_MASTER_NAME:-}" ]]; then
KUBERNETES_MASTER_NAME="${MASTER_NAME}"
fi
construct-linux-kubelet-flags "master"
build-linux-kube-env true "${KUBE_TEMP}/master-kube-env.yaml"
build-kubelet-config true "linux" "${KUBE_TEMP}/master-kubelet-config.yaml"
build-kube-master-certs "${KUBE_TEMP}/kube-master-certs.yaml"
}
function write-linux-node-env {
if [[ -z "${KUBERNETES_MASTER_NAME:-}" ]]; then
KUBERNETES_MASTER_NAME="${MASTER_NAME}"
fi
construct-linux-kubelet-flags "heapster"
build-linux-kube-env false "${KUBE_TEMP}/heapster-kube-env.yaml"
construct-linux-kubelet-flags "node"
build-linux-kube-env false "${KUBE_TEMP}/node-kube-env.yaml"
build-kubelet-config false "linux" "${KUBE_TEMP}/node-kubelet-config.yaml"
}
function write-windows-node-env {
construct-windows-kubelet-flags
construct-windows-kubeproxy-flags
build-windows-kube-env "${KUBE_TEMP}/windows-node-kube-env.yaml"
build-kubelet-config false "windows" "${KUBE_TEMP}/windows-node-kubelet-config.yaml"
}
function build-linux-node-labels {
local node_type=$1
local node_labels=""
if [[ "${KUBE_PROXY_DAEMONSET:-}" == "true" && "${node_type}" != "master" ]]; then
# Add kube-proxy daemonset label to node to avoid situation during cluster
# upgrade/downgrade when there are two instances of kube-proxy running on a node.
node_labels="node.kubernetes.io/kube-proxy-ds-ready=true"
fi
if [[ -n "${NODE_LABELS:-}" ]]; then
node_labels="${node_labels:+${node_labels},}${NODE_LABELS}"
fi
if [[ -n "${NON_MASTER_NODE_LABELS:-}" && "${node_type}" != "master" ]]; then
node_labels="${node_labels:+${node_labels},}${NON_MASTER_NODE_LABELS}"
fi
if [[ -n "${MASTER_NODE_LABELS:-}" && "${node_type}" == "master" ]]; then
node_labels="${node_labels:+${node_labels},}${MASTER_NODE_LABELS}"
fi
echo $node_labels
}
function build-windows-node-labels {
local node_labels=""
if [[ -n "${WINDOWS_NODE_LABELS:-}" ]]; then
node_labels="${node_labels:+${node_labels},}${WINDOWS_NODE_LABELS}"
fi
if [[ -n "${WINDOWS_NON_MASTER_NODE_LABELS:-}" ]]; then
node_labels="${node_labels:+${node_labels},}${WINDOWS_NON_MASTER_NODE_LABELS}"
fi
echo $node_labels
}
# yaml-map-string-stringarray converts the encoded structure to yaml format, and echoes the result
# under the provided name. If the encoded structure is empty, echoes nothing.
# 1: name to be output in yaml
# 2: encoded map-string-string (which may contain duplicate keys - resulting in map-string-stringarray)
# 3: key-value separator (defaults to ':')
# 4: item separator (defaults to ',')
function yaml-map-string-stringarray {
declare -r name="${1}"
declare -r encoded="${2}"
declare -r kv_sep="${3:-:}"
declare -r item_sep="${4:-,}"
declare -a pairs # indexed array
declare -A map # associative array
IFS="${item_sep}" read -ra pairs <<<"${encoded}" # split on item_sep
for pair in "${pairs[@]}"; do
declare key
declare value
IFS="${kv_sep}" read -r key value <<<"${pair}" # split on kv_sep
map[$key]="${map[$key]+${map[$key]}${item_sep}}${value}" # append values from duplicate keys
done
# only output if there is a non-empty map
if [[ ${#map[@]} -gt 0 ]]; then
echo "${name}:"
for k in "${!map[@]}"; do
echo " ${k}:"
declare -a values
IFS="${item_sep}" read -ra values <<<"${map[$k]}"
for val in "${values[@]}"; do
# declare across two lines so errexit can catch failures
declare v
v=$(yaml-quote "${val}")
echo " - ${v}"
done
done
fi
}
# yaml-map-string-string converts the encoded structure to yaml format, and echoes the result
# under the provided name. If the encoded structure is empty, echoes nothing.
# 1: name to be output in yaml
# 2: encoded map-string-string (no duplicate keys)
# 3: bool, whether to yaml-quote the value string in the output (defaults to true)
# 4: key-value separator (defaults to ':')
# 5: item separator (defaults to ',')
function yaml-map-string-string {
declare -r name="${1}"
declare -r encoded="${2}"
declare -r quote_val_string="${3:-true}"
declare -r kv_sep="${4:-:}"
declare -r item_sep="${5:-,}"
declare -a pairs # indexed array
declare -A map # associative array
IFS="${item_sep}" read -ra pairs <<<"${encoded}" # split on item_sep # TODO(mtaufen): try quoting this too
for pair in "${pairs[@]}"; do
declare key
declare value
IFS="${kv_sep}" read -r key value <<<"${pair}" # split on kv_sep
map[$key]="${value}" # add to associative array
done
# only output if there is a non-empty map
if [[ ${#map[@]} -gt 0 ]]; then
echo "${name}:"
for k in "${!map[@]}"; do
if [[ "${quote_val_string}" == "true" ]]; then
# declare across two lines so errexit can catch failures
declare v
v=$(yaml-quote "${map[$k]}")
echo " ${k}: ${v}"
else
echo " ${k}: ${map[$k]}"
fi
done
fi
}
# Returns kubelet flags used on both Linux and Windows nodes.
function construct-common-kubelet-flags {
local flags="${KUBELET_TEST_LOG_LEVEL:-"--v=2"} ${KUBELET_TEST_ARGS:-}"
flags+=" --cloud-provider=gce"
# TODO(mtaufen): ROTATE_CERTIFICATES seems unused; delete it?
if [[ -n "${ROTATE_CERTIFICATES:-}" ]]; then
flags+=" --rotate-certificates=true"
fi
if [[ -n "${MAX_PODS_PER_NODE:-}" ]]; then
flags+=" --max-pods=${MAX_PODS_PER_NODE}"
fi
echo $flags
}
# Sets KUBELET_ARGS with the kubelet flags for Linux nodes.
# $1: if 'true', we're rendering flags for a master, else a node
function construct-linux-kubelet-flags {
local node_type="$1"
local flags="$(construct-common-kubelet-flags)"
# Keep in sync with CONTAINERIZED_MOUNTER_HOME in configure-helper.sh
flags+=" --experimental-mounter-path=/home/kubernetes/containerized_mounter/mounter"
flags+=" --experimental-check-node-capabilities-before-mount=true"
# Keep in sync with the mkdir command in configure-helper.sh (until the TODO is resolved)
flags+=" --cert-dir=/var/lib/kubelet/pki/"
# Configure the directory that the Kubelet should use to store dynamic config checkpoints
flags+=" --dynamic-config-dir=/var/lib/kubelet/dynamic-config"
if [[ "${node_type}" == "master" ]]; then
flags+=" ${MASTER_KUBELET_TEST_ARGS:-}"
if [[ "${REGISTER_MASTER_KUBELET:-false}" == "true" ]]; then
#TODO(mikedanese): allow static pods to start before creating a client
#flags+=" --bootstrap-kubeconfig=/var/lib/kubelet/bootstrap-kubeconfig"
#flags+=" --kubeconfig=/var/lib/kubelet/kubeconfig"
flags+=" --register-with-taints=node-role.kubernetes.io/master=:NoSchedule"
flags+=" --kubeconfig=/var/lib/kubelet/bootstrap-kubeconfig"
flags+=" --register-schedulable=false"
fi
if [[ "${MASTER_OS_DISTRIBUTION}" == "ubuntu" ]]; then
# Configure the file path for host dns configuration
# as ubuntu uses systemd-resolved
flags+=" --resolv-conf=/run/systemd/resolve/resolv.conf"
fi
else # For nodes
flags+=" ${NODE_KUBELET_TEST_ARGS:-}"
flags+=" --bootstrap-kubeconfig=/var/lib/kubelet/bootstrap-kubeconfig"
flags+=" --kubeconfig=/var/lib/kubelet/kubeconfig"
if [[ "${node_type}" == "heapster" ]]; then
flags+=" ${HEAPSTER_KUBELET_TEST_ARGS:-}"
fi
if [[ "${NODE_OS_DISTRIBUTION}" == "ubuntu" ]]; then
# Configure the file path for host dns configuration
# as ubuntu uses systemd-resolved
flags+=" --resolv-conf=/run/systemd/resolve/resolv.conf"
fi
fi
# Network plugin
if [[ -n "${NETWORK_PROVIDER:-}" || -n "${NETWORK_POLICY_PROVIDER:-}" ]]; then
flags+=" --cni-bin-dir=/home/kubernetes/bin"
if [[ "${NETWORK_POLICY_PROVIDER:-}" == "calico" || "${ENABLE_NETD:-}" == "true" ]]; then
# Calico uses CNI always.
# Note that network policy won't work for master node.
if [[ "${node_type}" == "master" ]]; then
flags+=" --network-plugin=${NETWORK_PROVIDER}"
else
flags+=" --network-plugin=cni"
fi
else
# Otherwise use the configured value.
flags+=" --network-plugin=${NETWORK_PROVIDER}"
fi
fi
if [[ -n "${NON_MASQUERADE_CIDR:-}" ]]; then
flags+=" --non-masquerade-cidr=${NON_MASQUERADE_CIDR}"
fi
flags+=" --volume-plugin-dir=${VOLUME_PLUGIN_DIR}"
local node_labels="$(build-linux-node-labels ${node_type})"
if [[ -n "${node_labels:-}" ]]; then
flags+=" --node-labels=${node_labels}"
fi
if [[ -n "${NODE_TAINTS:-}" ]]; then
flags+=" --register-with-taints=${NODE_TAINTS}"
fi
if [[ "${CONTAINER_RUNTIME:-}" != "docker" ]]; then
flags+=" --container-runtime=remote"
if [[ "${CONTAINER_RUNTIME}" == "containerd" ]]; then
CONTAINER_RUNTIME_ENDPOINT=${KUBE_CONTAINER_RUNTIME_ENDPOINT:-unix:///run/containerd/containerd.sock}
flags+=" --runtime-cgroups=/system.slice/containerd.service"
fi
fi
if [[ -n "${CONTAINER_RUNTIME_ENDPOINT:-}" ]]; then
flags+=" --container-runtime-endpoint=${CONTAINER_RUNTIME_ENDPOINT}"
fi
KUBELET_ARGS="${flags}"
}
# Sets KUBELET_ARGS with the kubelet flags for Windows nodes.
# Note that to configure flags with explicit empty string values, we can't escape
# double-quotes, because they still break sc.exe after expansion in the
# binPath parameter, and single-quotes get parsed as characters instead of
# string delimiters.
function construct-windows-kubelet-flags {
local flags="$(construct-common-kubelet-flags)"
# Note: NODE_KUBELET_TEST_ARGS is empty in typical kube-up runs.
flags+=" ${NODE_KUBELET_TEST_ARGS:-}"
local node_labels="$(build-windows-node-labels)"
if [[ -n "${node_labels:-}" ]]; then
flags+=" --node-labels=${node_labels}"
fi
# Concatenate common and windows-only node taints and apply them.
local node_taints="${NODE_TAINTS:-}"
if [[ -n "${node_taints}" && -n "${WINDOWS_NODE_TAINTS:-}" ]]; then
node_taints+=":${WINDOWS_NODE_TAINTS}"
else
node_taints="${WINDOWS_NODE_TAINTS:-}"
fi
if [[ -n "${node_taints}" ]]; then
flags+=" --register-with-taints=${node_taints}"
fi
# Many of these flags were adapted from
# https://github.com/Microsoft/SDN/blob/master/Kubernetes/windows/start-kubelet.ps1.
flags+=" --config=${WINDOWS_KUBELET_CONFIG_FILE}"
flags+=" --kubeconfig=${WINDOWS_KUBECONFIG_FILE}"
# The directory where the TLS certs are located.
flags+=" --cert-dir=${WINDOWS_PKI_DIR}"
flags+=" --network-plugin=cni"
flags+=" --cni-bin-dir=${WINDOWS_CNI_DIR}"
flags+=" --cni-conf-dir=${WINDOWS_CNI_CONFIG_DIR}"
flags+=" --pod-manifest-path=${WINDOWS_MANIFESTS_DIR}"
# Windows images are large and we don't have gcr mirrors yet. Allow longer
# pull progress deadline.
flags+=" --image-pull-progress-deadline=5m"
flags+=" --enable-debugging-handlers=true"
# Configure kubelet to run as a windows service.
flags+=" --windows-service=true"
# TODO(mtaufen): Configure logging for kubelet running as a service. I haven't
# been able to figure out how to direct stdout/stderr into log files when
# configuring it to run via sc.exe, so we just manually override logging
# config here.
flags+=" --log-file=${WINDOWS_LOGS_DIR}\kubelet.log"
# klog sets this to true internally, so need to override to false so we
# actually log to the file
flags+=" --logtostderr=false"
# Configure the file path for host dns configuration
flags+=" --resolv-conf=${WINDOWS_CNI_DIR}\hostdns.conf"
# Both --cgroups-per-qos and --enforce-node-allocatable should be disabled on
# windows; the latter requires the former to be enabled to work.
flags+=" --cgroups-per-qos=false --enforce-node-allocatable="
# Turn off kernel memory cgroup notification.
flags+=" --experimental-kernel-memcg-notification=false"
# TODO(#78628): Re-enable KubeletPodResources when the issue is fixed.
# Force disable KubeletPodResources feature on Windows until #78628 is fixed.
flags+=" --feature-gates=KubeletPodResources=false"
if [[ "${CONTAINER_RUNTIME:-}" != "docker" ]]; then
flags+=" --container-runtime=remote"
if [[ "${CONTAINER_RUNTIME}" == "containerd" ]]; then
CONTAINER_RUNTIME_ENDPOINT=${KUBE_CONTAINER_RUNTIME_ENDPOINT:-npipe:////./pipe/containerd-containerd}
flags+=" --container-runtime-endpoint=${CONTAINER_RUNTIME_ENDPOINT}"
fi
fi
KUBELET_ARGS="${flags}"
}
function construct-windows-kubeproxy-flags {
local flags=""
# Use the same log level as the Kubelet during tests.
flags+=" ${KUBELET_TEST_LOG_LEVEL:-"--v=2"}"
# Windows uses kernelspace proxymode
flags+=" --proxy-mode=kernelspace"
# Configure kube-proxy to run as a windows service.
flags+=" --windows-service=true"
# TODO(mtaufen): Configure logging for kube-proxy running as a service.
# I haven't been able to figure out how to direct stdout/stderr into log
# files when configuring it to run via sc.exe, so we just manually
# override logging config here.
flags+=" --log-file=${WINDOWS_LOGS_DIR}\kube-proxy.log"
# klog sets this to true internally, so need to override to false
# so we actually log to the file
flags+=" --logtostderr=false"
# Configure flags with explicit empty string values. We can't escape
# double-quotes, because they still break sc.exe after expansion in the
# binPath parameter, and single-quotes get parsed as characters instead
# of string delimiters.
KUBEPROXY_ARGS="${flags}"
}
# $1: if 'true', we're rendering config for a master, else a node
function build-kubelet-config {
local master="$1"
local os="$2"
local file="$3"
rm -f "${file}"
{
print-common-kubelet-config
if [[ "${master}" == "true" ]]; then
print-master-kubelet-config
else
print-common-node-kubelet-config
if [[ "${os}" == "linux" ]]; then
print-linux-node-kubelet-config
elif [[ "${os}" == "windows" ]]; then
print-windows-node-kubelet-config
else
echo "Unknown OS ${os}" >&2
exit 1
fi
fi
} > "${file}"
}
# cat the Kubelet config yaml in common between masters, linux nodes, and
# windows nodes
function print-common-kubelet-config {
declare quoted_dns_server_ip
declare quoted_dns_domain
quoted_dns_server_ip=$(yaml-quote "${DNS_SERVER_IP}")
quoted_dns_domain=$(yaml-quote "${DNS_DOMAIN}")
cat <<EOF
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
cgroupRoot: /
clusterDNS:
- ${quoted_dns_server_ip}
clusterDomain: ${quoted_dns_domain}
readOnlyPort: 10255
EOF
# Note: ENABLE_MANIFEST_URL is used by GKE.
# TODO(mtaufen): remove this since it's not used in kubernetes/kubernetes nor
# kubernetes/test-infra.
if [[ "${ENABLE_MANIFEST_URL:-}" == "true" ]]; then
declare quoted_manifest_url
quoted_manifest_url=$(yaml-quote "${MANIFEST_URL}")
cat <<EOF
staticPodURL: ${quoted_manifest_url}
EOF
yaml-map-string-stringarray 'staticPodURLHeader' "${MANIFEST_URL_HEADER}"
fi
if [[ -n "${EVICTION_HARD:-}" ]]; then
yaml-map-string-string 'evictionHard' "${EVICTION_HARD}" true '<'
fi
if [[ -n "${FEATURE_GATES:-}" ]]; then
yaml-map-string-string 'featureGates' "${FEATURE_GATES}" false '='