/
test-cmd.sh
executable file
·2632 lines (2322 loc) · 129 KB
/
test-cmd.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
#!/bin/bash
# Copyright 2014 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.
# This command checks that the built commands can function together for
# simple scenarios. It does not require Docker.
set -o errexit
set -o nounset
set -o pipefail
KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
source "${KUBE_ROOT}/hack/lib/init.sh"
source "${KUBE_ROOT}/hack/lib/test.sh"
# Stops the running kubectl proxy, if there is one.
function stop-proxy()
{
[[ -n "${PROXY_PORT-}" ]] && kube::log::status "Stopping proxy on port ${PROXY_PORT}"
[[ -n "${PROXY_PID-}" ]] && kill "${PROXY_PID}" 1>&2 2>/dev/null
[[ -n "${PROXY_PORT_FILE-}" ]] && rm -f ${PROXY_PORT_FILE}
PROXY_PID=
PROXY_PORT=
PROXY_PORT_FILE=
}
# Starts "kubect proxy" to test the client proxy. $1: api_prefix
function start-proxy()
{
stop-proxy
PROXY_PORT_FILE=$(mktemp proxy-port.out.XXXXX)
kube::log::status "Starting kubectl proxy on random port; output file in ${PROXY_PORT_FILE}; args: ${1-}"
if [ $# -eq 0 ]; then
kubectl proxy --port=0 --www=. 1>${PROXY_PORT_FILE} 2>&1 &
else
kubectl proxy --port=0 --www=. --api-prefix="$1" 1>${PROXY_PORT_FILE} 2>&1 &
fi
PROXY_PID=$!
PROXY_PORT=
local attempts=0
while [[ -z ${PROXY_PORT} ]]; do
if (( ${attempts} > 9 )); then
kill "${PROXY_PID}"
kube::log::error_exit "Couldn't start proxy. Failed to read port after ${attempts} tries. Got: $(cat ${PROXY_PORT_FILE})"
fi
sleep .5
kube::log::status "Attempt ${attempts} to read ${PROXY_PORT_FILE}..."
PROXY_PORT=$(sed 's/.*Starting to serve on 127.0.0.1:\([0-9]*\)$/\1/'< ${PROXY_PORT_FILE})
attempts=$((attempts+1))
done
kube::log::status "kubectl proxy running on port ${PROXY_PORT}"
# We try checking kubectl proxy 30 times with 1s delays to avoid occasional
# failures.
if [ $# -eq 0 ]; then
kube::util::wait_for_url "http://127.0.0.1:${PROXY_PORT}/healthz" "kubectl proxy"
else
kube::util::wait_for_url "http://127.0.0.1:${PROXY_PORT}/$1/healthz" "kubectl proxy --api-prefix=$1"
fi
}
function cleanup()
{
[[ -n "${APISERVER_PID-}" ]] && kill "${APISERVER_PID}" 1>&2 2>/dev/null
[[ -n "${CTLRMGR_PID-}" ]] && kill "${CTLRMGR_PID}" 1>&2 2>/dev/null
[[ -n "${KUBELET_PID-}" ]] && kill "${KUBELET_PID}" 1>&2 2>/dev/null
stop-proxy
kube::etcd::cleanup
rm -rf "${KUBE_TEMP}"
kube::log::status "Clean up complete"
}
# Executes curl against the proxy. $1 is the path to use, $2 is the desired
# return code. Prints a helpful message on failure.
function check-curl-proxy-code()
{
local status
local -r address=$1
local -r desired=$2
local -r full_address="${PROXY_HOST}:${PROXY_PORT}${address}"
status=$(curl -w "%{http_code}" --silent --output /dev/null "${full_address}")
if [ "${status}" == "${desired}" ]; then
return 0
fi
echo "For address ${full_address}, got ${status} but wanted ${desired}"
return 1
}
# TODO: Remove this function when we do the retry inside the kubectl commands. See #15333.
function kubectl-with-retry()
{
ERROR_FILE="${KUBE_TEMP}/kubectl-error"
preserve_err_file=${PRESERVE_ERR_FILE-false}
for count in {0..3}; do
kubectl "$@" 2> ${ERROR_FILE} || true
if grep -q "the object has been modified" "${ERROR_FILE}"; then
kube::log::status "retry $1, error: $(cat ${ERROR_FILE})"
rm "${ERROR_FILE}"
sleep $((2**count))
else
if [ "$preserve_err_file" != true ] ; then
rm "${ERROR_FILE}"
fi
break
fi
done
}
# Waits for the pods with the given label to match the list of names. Don't call
# this function unless you know the exact pod names, or expect no pods.
# $1: label to match
# $2: list of pod names sorted by name
# Example invocation:
# wait-for-pods-with-label "app=foo" "nginx-0nginx-1"
function wait-for-pods-with-label()
{
for i in $(seq 1 10); do
kubeout=`kubectl get po -l $1 --template '{{range.items}}{{.metadata.name}}{{end}}' --sort-by metadata.name "${kube_flags[@]}"`
if [[ $kubeout = $2 ]]; then
return
fi
echo Waiting for pods: $2, found $kubeout
sleep $i
done
kube::log::error_exit "Timeout waiting for pods with label $1"
}
kube::util::trap_add cleanup EXIT SIGINT
kube::util::ensure-temp-dir
BINS=(
cmd/kubectl
cmd/kube-apiserver
cmd/kube-controller-manager
)
make -C "${KUBE_ROOT}" WHAT="${BINS[*]}"
kube::etcd::start
ETCD_HOST=${ETCD_HOST:-127.0.0.1}
ETCD_PORT=${ETCD_PORT:-2379}
API_PORT=${API_PORT:-8080}
API_HOST=${API_HOST:-127.0.0.1}
KUBELET_PORT=${KUBELET_PORT:-10250}
KUBELET_HEALTHZ_PORT=${KUBELET_HEALTHZ_PORT:-10248}
CTLRMGR_PORT=${CTLRMGR_PORT:-10252}
PROXY_HOST=127.0.0.1 # kubectl only serves on localhost.
IMAGE_NGINX="gcr.io/google-containers/nginx:1.7.9"
IMAGE_DEPLOYMENT_R1="gcr.io/google-containers/nginx:test-cmd" # deployment-revision1.yaml
IMAGE_DEPLOYMENT_R2="$IMAGE_NGINX" # deployment-revision2.yaml
IMAGE_PERL="gcr.io/google-containers/perl"
# ensure ~/.kube/config isn't loaded by tests
HOME="${KUBE_TEMP}"
# Find a standard sed instance for use with edit scripts
SED=sed
if which gsed &>/dev/null; then
SED=gsed
fi
if ! ($SED --version 2>&1 | grep -q GNU); then
echo "!!! GNU sed is required. If on OS X, use 'brew install gnu-sed'."
exit 1
fi
# Check kubectl
kube::log::status "Running kubectl with no options"
"${KUBE_OUTPUT_HOSTBIN}/kubectl"
# Only run kubelet on platforms it supports
if [[ "$(go env GOHOSTOS)" == "linux" ]]; then
BINS=(
cmd/kubelet
)
make -C "${KUBE_ROOT}" WHAT="${BINS[*]}"
kube::log::status "Starting kubelet in masterless mode"
"${KUBE_OUTPUT_HOSTBIN}/kubelet" \
--really-crash-for-testing=true \
--root-dir=/tmp/kubelet.$$ \
--cert-dir="${TMPDIR:-/tmp/}" \
--docker-endpoint="fake://" \
--hostname-override="127.0.0.1" \
--address="127.0.0.1" \
--port="$KUBELET_PORT" \
--healthz-port="${KUBELET_HEALTHZ_PORT}" 1>&2 &
KUBELET_PID=$!
kube::util::wait_for_url "http://127.0.0.1:${KUBELET_HEALTHZ_PORT}/healthz" "kubelet(masterless)"
kill ${KUBELET_PID} 1>&2 2>/dev/null
kube::log::status "Starting kubelet in masterful mode"
"${KUBE_OUTPUT_HOSTBIN}/kubelet" \
--really-crash-for-testing=true \
--root-dir=/tmp/kubelet.$$ \
--cert-dir="${TMPDIR:-/tmp/}" \
--docker-endpoint="fake://" \
--hostname-override="127.0.0.1" \
--address="127.0.0.1" \
--api-servers="${API_HOST}:${API_PORT}" \
--port="$KUBELET_PORT" \
--healthz-port="${KUBELET_HEALTHZ_PORT}" 1>&2 &
KUBELET_PID=$!
kube::util::wait_for_url "http://127.0.0.1:${KUBELET_HEALTHZ_PORT}/healthz" "kubelet"
fi
# Start kube-apiserver
kube::log::status "Starting kube-apiserver"
# Admission Controllers to invoke prior to persisting objects in cluster
ADMISSION_CONTROL="NamespaceLifecycle,LimitRanger,ResourceQuota"
"${KUBE_OUTPUT_HOSTBIN}/kube-apiserver" \
--address="127.0.0.1" \
--public-address-override="127.0.0.1" \
--port="${API_PORT}" \
--admission-control="${ADMISSION_CONTROL}" \
--etcd-servers="http://${ETCD_HOST}:${ETCD_PORT}" \
--public-address-override="127.0.0.1" \
--kubelet-port=${KUBELET_PORT} \
--runtime-config=api/v1 \
--storage-media-type="${KUBE_TEST_API_STORAGE_TYPE-}" \
--cert-dir="${TMPDIR:-/tmp/}" \
--service-cluster-ip-range="10.0.0.0/24" 1>&2 &
APISERVER_PID=$!
kube::util::wait_for_url "http://127.0.0.1:${API_PORT}/healthz" "apiserver"
# Start controller manager
kube::log::status "Starting controller-manager"
"${KUBE_OUTPUT_HOSTBIN}/kube-controller-manager" \
--port="${CTLRMGR_PORT}" \
--kube-api-content-type="${KUBE_TEST_API_TYPE-}" \
--master="127.0.0.1:${API_PORT}" 1>&2 &
CTLRMGR_PID=$!
kube::util::wait_for_url "http://127.0.0.1:${CTLRMGR_PORT}/healthz" "controller-manager"
if [[ "$(go env GOHOSTOS)" == "linux" ]]; then
kube::util::wait_for_url "http://127.0.0.1:${API_PORT}/api/v1/nodes/127.0.0.1" "apiserver(nodes)"
else
# create a fake node
kubectl create -f - -s "http://127.0.0.1:${API_PORT}" << __EOF__
{
"kind": "Node",
"apiVersion": "v1",
"metadata": {
"name": "127.0.0.1"
},
"status": {
"capacity": {
"memory": "1Gi"
}
}
}
__EOF__
fi
# Expose kubectl directly for readability
PATH="${KUBE_OUTPUT_HOSTBIN}":$PATH
kube::log::status "Checking kubectl version"
kubectl version
# TODO: we need to note down the current default namespace and set back to this
# namespace after the tests are done.
kubectl config view
CONTEXT="test"
kubectl config set-context "${CONTEXT}"
kubectl config use-context "${CONTEXT}"
i=0
create_and_use_new_namespace() {
i=$(($i+1))
kubectl create namespace "namespace${i}"
kubectl config set-context "${CONTEXT}" --namespace="namespace${i}"
}
runTests() {
version="$1"
echo "Testing api version: $1"
if [[ -z "${version}" ]]; then
kube_flags=(
-s "http://127.0.0.1:${API_PORT}"
)
if [[ -z "${ALLOW_SKEW:-}" ]]; then
kube_flags+=("--match-server-version")
fi
[ "$(kubectl get nodes -o go-template='{{ .apiVersion }}' "${kube_flags[@]}")" == "v1" ]
else
kube_flags=(
-s "http://127.0.0.1:${API_PORT}"
)
if [[ -z "${ALLOW_SKEW:-}" ]]; then
kube_flags+=("--match-server-version")
fi
[ "$(kubectl get nodes -o go-template='{{ .apiVersion }}' "${kube_flags[@]}")" == "${version}" ]
fi
id_field=".metadata.name"
labels_field=".metadata.labels"
annotations_field=".metadata.annotations"
service_selector_field=".spec.selector"
rc_replicas_field=".spec.replicas"
rc_status_replicas_field=".status.replicas"
rc_container_image_field=".spec.template.spec.containers"
rs_replicas_field=".spec.replicas"
port_field="(index .spec.ports 0).port"
port_name="(index .spec.ports 0).name"
second_port_field="(index .spec.ports 1).port"
second_port_name="(index .spec.ports 1).name"
image_field="(index .spec.containers 0).image"
hpa_min_field=".spec.minReplicas"
hpa_max_field=".spec.maxReplicas"
hpa_cpu_field=".spec.targetCPUUtilizationPercentage"
petset_replicas_field=".spec.replicas"
job_parallelism_field=".spec.parallelism"
deployment_replicas=".spec.replicas"
secret_data=".data"
secret_type=".type"
deployment_image_field="(index .spec.template.spec.containers 0).image"
deployment_second_image_field="(index .spec.template.spec.containers 1).image"
change_cause_annotation='.*kubernetes.io/change-cause.*'
# Passing no arguments to create is an error
! kubectl create
#######################
# kubectl config set #
#######################
kube::log::status "Testing kubectl(${version}:config set)"
kubectl config set-cluster test-cluster --server="https://does-not-work"
# Get the api cert and add a comment to avoid flag parsing problems
cert_data=$(echo "#Comment" && cat "${TMPDIR:-/tmp}/apiserver.crt")
kubectl config set clusters.test-cluster.certificate-authority-data "$cert_data" --set-raw-bytes
r_writen=$(kubectl config view --raw -o jsonpath='{.clusters[?(@.name == "test-cluster")].cluster.certificate-authority-data}')
encoded=$(echo -n "$cert_data" | base64)
kubectl config set clusters.test-cluster.certificate-authority-data "$encoded"
e_writen=$(kubectl config view --raw -o jsonpath='{.clusters[?(@.name == "test-cluster")].cluster.certificate-authority-data}')
test "$e_writen" == "$r_writen"
#######################
# kubectl local proxy #
#######################
# Make sure the UI can be proxied
start-proxy
check-curl-proxy-code /ui 301
check-curl-proxy-code /metrics 200
check-curl-proxy-code /api/ui 404
if [[ -n "${version}" ]]; then
check-curl-proxy-code /api/${version}/namespaces 200
fi
check-curl-proxy-code /static/ 200
stop-proxy
# Make sure the in-development api is accessible by default
start-proxy
check-curl-proxy-code /apis 200
check-curl-proxy-code /apis/extensions/ 200
stop-proxy
# Custom paths let you see everything.
start-proxy /custom
check-curl-proxy-code /custom/ui 301
check-curl-proxy-code /custom/metrics 200
if [[ -n "${version}" ]]; then
check-curl-proxy-code /custom/api/${version}/namespaces 200
fi
stop-proxy
#########################
# RESTMapper evaluation #
#########################
kube::log::status "Testing RESTMapper"
RESTMAPPER_ERROR_FILE="${KUBE_TEMP}/restmapper-error"
### Non-existent resource type should give a recognizeable error
# Pre-condition: None
# Command
kubectl get "${kube_flags[@]}" unknownresourcetype 2>${RESTMAPPER_ERROR_FILE} || true
if grep -q "the server doesn't have a resource type" "${RESTMAPPER_ERROR_FILE}"; then
kube::log::status "\"kubectl get unknownresourcetype\" returns error as expected: $(cat ${RESTMAPPER_ERROR_FILE})"
else
kube::log::status "\"kubectl get unknownresourcetype\" returns unexpected error or non-error: $(cat ${RESTMAPPER_ERROR_FILE})"
exit 1
fi
rm "${RESTMAPPER_ERROR_FILE}"
# Post-condition: None
kubectl get "${kube_flags[@]}" --raw /version
###########################
# POD creation / deletion #
###########################
kube::log::status "Testing kubectl(${version}:pods)"
### Create POD valid-pod from JSON
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create "${kube_flags[@]}" -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml
# Post-condition: valid-pod POD is created
kubectl get "${kube_flags[@]}" pods -o json
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
kube::test::get_object_assert 'pod valid-pod' "{{$id_field}}" 'valid-pod'
kube::test::get_object_assert 'pod/valid-pod' "{{$id_field}}" 'valid-pod'
kube::test::get_object_assert 'pods/valid-pod' "{{$id_field}}" 'valid-pod'
# Repeat above test using jsonpath template
kube::test::get_object_jsonpath_assert pods "{.items[*]$id_field}" 'valid-pod'
kube::test::get_object_jsonpath_assert 'pod valid-pod' "{$id_field}" 'valid-pod'
kube::test::get_object_jsonpath_assert 'pod/valid-pod' "{$id_field}" 'valid-pod'
kube::test::get_object_jsonpath_assert 'pods/valid-pod' "{$id_field}" 'valid-pod'
# Describe command should print detailed information
kube::test::describe_object_assert pods 'valid-pod' "Name:" "Image:" "Node:" "Labels:" "Status:" "Controllers"
# Describe command should print events information by default
kube::test::describe_object_events_assert pods 'valid-pod'
# Describe command should not print events information when show-events=false
kube::test::describe_object_events_assert pods 'valid-pod' false
# Describe command should print events information when show-events=true
kube::test::describe_object_events_assert pods 'valid-pod' true
# Describe command (resource only) should print detailed information
kube::test::describe_resource_assert pods "Name:" "Image:" "Node:" "Labels:" "Status:" "Controllers"
# Describe command should print events information by default
kube::test::describe_resource_events_assert pods
# Describe command should not print events information when show-events=false
kube::test::describe_resource_events_assert pods false
# Describe command should print events information when show-events=true
kube::test::describe_resource_events_assert pods true
### Validate Export ###
kube::test::get_object_assert 'pods/valid-pod' "{{.metadata.namespace}} {{.metadata.name}}" '<no value> valid-pod' "--export=true"
### Dump current valid-pod POD
output_pod=$(kubectl get pod valid-pod -o yaml --output-version=v1 "${kube_flags[@]}")
### Delete POD valid-pod by id
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
kubectl delete pod valid-pod "${kube_flags[@]}" --grace-period=0
# Post-condition: valid-pod POD doesn't exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
### Delete POD valid-pod by id with --now
# Pre-condition: valid-pod POD exists
kubectl create "${kube_flags[@]}" -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
kubectl delete pod valid-pod "${kube_flags[@]}" --now
# Post-condition: valid-pod POD doesn't exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
### Create POD valid-pod from dumped YAML
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
echo "${output_pod}" | $SED '/namespace:/d' | kubectl create -f - "${kube_flags[@]}"
# Post-condition: valid-pod POD is created
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
### Delete POD valid-pod from JSON
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
kubectl delete -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}" --grace-period=0
# Post-condition: valid-pod POD doesn't exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
### Create POD valid-pod from JSON
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}"
# Post-condition: valid-pod POD is created
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
### Delete POD valid-pod with label
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert "pods -l'name in (valid-pod)'" '{{range.items}}{{$id_field}}:{{end}}' 'valid-pod:'
# Command
kubectl delete pods -l'name in (valid-pod)' "${kube_flags[@]}" --grace-period=0
# Post-condition: valid-pod POD doesn't exist
kube::test::get_object_assert "pods -l'name in (valid-pod)'" '{{range.items}}{{$id_field}}:{{end}}' ''
### Create POD valid-pod from YAML
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}"
# Post-condition: valid-pod POD is created
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
### Delete PODs with no parameter mustn't kill everything
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
! kubectl delete pods "${kube_flags[@]}"
# Post-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
### Delete PODs with --all and a label selector is not permitted
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
! kubectl delete --all pods -l'name in (valid-pod)' "${kube_flags[@]}"
# Post-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
### Delete all PODs
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
kubectl delete --all pods "${kube_flags[@]}" --grace-period=0 # --all remove all the pods
# Post-condition: no POD exists
kube::test::get_object_assert "pods -l'name in (valid-pod)'" '{{range.items}}{{$id_field}}:{{end}}' ''
# Detailed tests for describe pod output
### Create a new namespace
# Pre-condition: the test-secrets namespace does not exist
kube::test::get_object_assert 'namespaces' '{{range.items}}{{ if eq $id_field \"test-kubectl-describe-pod\" }}found{{end}}{{end}}:' ':'
# Command
kubectl create namespace test-kubectl-describe-pod
# Post-condition: namespace 'test-secrets' is created.
kube::test::get_object_assert 'namespaces/test-kubectl-describe-pod' "{{$id_field}}" 'test-kubectl-describe-pod'
### Create a generic secret
# Pre-condition: no SECRET exists
kube::test::get_object_assert 'secrets --namespace=test-kubectl-describe-pod' "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create secret generic test-secret --from-literal=key-1=value1 --type=test-type --namespace=test-kubectl-describe-pod
# Post-condition: secret exists and has expected values
kube::test::get_object_assert 'secret/test-secret --namespace=test-kubectl-describe-pod' "{{$id_field}}" 'test-secret'
kube::test::get_object_assert 'secret/test-secret --namespace=test-kubectl-describe-pod' "{{$secret_type}}" 'test-type'
### Create a generic configmap
# Pre-condition: no CONFIGMAP exists
kube::test::get_object_assert 'configmaps --namespace=test-kubectl-describe-pod' "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create configmap test-configmap --from-literal=key-2=value2 --namespace=test-kubectl-describe-pod
# Post-condition: configmap exists and has expected values
kube::test::get_object_assert 'configmap/test-configmap --namespace=test-kubectl-describe-pod' "{{$id_field}}" 'test-configmap'
# Create a pod that consumes secret, configmap, and downward API keys as envs
kube::test::get_object_assert 'pods --namespace=test-kubectl-describe-pod' "{{range.items}}{{$id_field}}:{{end}}" ''
kubectl create -f hack/testdata/pod-with-api-env.yaml --namespace=test-kubectl-describe-pod
kube::test::describe_object_assert 'pods --namespace=test-kubectl-describe-pod' 'env-test-pod' "TEST_CMD_1" "<set to the key 'key-1' in secret 'test-secret'>" "TEST_CMD_2" "<set to the key 'key-2' of config map 'test-configmap'>" "TEST_CMD_3" "env-test-pod (v1:metadata.name)"
# Describe command (resource only) should print detailed information about environment variables
kube::test::describe_resource_assert 'pods --namespace=test-kubectl-describe-pod' "TEST_CMD_1" "<set to the key 'key-1' in secret 'test-secret'>" "TEST_CMD_2" "<set to the key 'key-2' of config map 'test-configmap'>" "TEST_CMD_3" "env-test-pod (v1:metadata.name)"
# Clean-up
kubectl delete pod env-test-pod --namespace=test-kubectl-describe-pod
kubectl delete secret test-secret --namespace=test-kubectl-describe-pod
kubectl delete configmap test-configmap --namespace=test-kubectl-describe-pod
kubectl delete namespace test-kubectl-describe-pod
### Create two PODs
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}"
kubectl create -f examples/storage/redis/redis-proxy.yaml "${kube_flags[@]}"
# Post-condition: valid-pod and redis-proxy PODs are created
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'redis-proxy:valid-pod:'
### Delete multiple PODs at once
# Pre-condition: valid-pod and redis-proxy PODs exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'redis-proxy:valid-pod:'
# Command
kubectl delete pods valid-pod redis-proxy "${kube_flags[@]}" --grace-period=0 # delete multiple pods at once
# Post-condition: no POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
### Create valid-pod POD
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}"
# Post-condition: valid-pod POD is created
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
### Label the valid-pod POD
# Pre-condition: valid-pod is not labelled
kube::test::get_object_assert 'pod valid-pod' "{{range$labels_field}}{{.}}:{{end}}" 'valid-pod:'
# Command
kubectl label pods valid-pod new-name=new-valid-pod "${kube_flags[@]}"
# Post-condition: valid-pod is labelled
kube::test::get_object_assert 'pod valid-pod' "{{range$labels_field}}{{.}}:{{end}}" 'valid-pod:new-valid-pod:'
### Record label change
# Pre-condition: valid-pod does not have record annotation
kube::test::get_object_assert 'pod valid-pod' "{{range.items}}{{$annotations_field}}:{{end}}" ''
# Command
kubectl label pods valid-pod record-change=true --record=true "${kube_flags[@]}"
# Post-condition: valid-pod has record annotation
kube::test::get_object_assert 'pod valid-pod' "{{range$annotations_field}}{{.}}:{{end}}" ".*--record=true.*"
### Do not record label change
# Command
kubectl label pods valid-pod no-record-change=true --record=false "${kube_flags[@]}"
# Post-condition: valid-pod's record annotation still contains command with --record=true
kube::test::get_object_assert 'pod valid-pod' "{{range$annotations_field}}{{.}}:{{end}}" ".*--record=true.*"
### Record label change with unspecified flag and previous change already recorded
# Command
kubectl label pods valid-pod new-record-change=true "${kube_flags[@]}"
# Post-condition: valid-pod's record annotation contains new change
kube::test::get_object_assert 'pod valid-pod' "{{range$annotations_field}}{{.}}:{{end}}" ".*new-record-change=true.*"
### Delete POD by label
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
kubectl delete pods -lnew-name=new-valid-pod --grace-period=0 "${kube_flags[@]}"
# Post-condition: valid-pod POD doesn't exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
### Create pod-with-precision POD
# Pre-condition: no POD is running
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f hack/testdata/pod-with-precision.json "${kube_flags[@]}"
# Post-condition: valid-pod POD is running
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'pod-with-precision:'
## Patch preserves precision
# Command
kubectl patch "${kube_flags[@]}" pod pod-with-precision -p='{"metadata":{"annotations":{"patchkey": "patchvalue"}}}'
# Post-condition: pod-with-precision POD has patched annotation
kube::test::get_object_assert 'pod pod-with-precision' "{{${annotations_field}.patchkey}}" 'patchvalue'
# Command
kubectl label pods pod-with-precision labelkey=labelvalue "${kube_flags[@]}"
# Post-condition: pod-with-precision POD has label
kube::test::get_object_assert 'pod pod-with-precision' "{{${labels_field}.labelkey}}" 'labelvalue'
# Command
kubectl annotate pods pod-with-precision annotatekey=annotatevalue "${kube_flags[@]}"
# Post-condition: pod-with-precision POD has annotation
kube::test::get_object_assert 'pod pod-with-precision' "{{${annotations_field}.annotatekey}}" 'annotatevalue'
# Cleanup
kubectl delete pod pod-with-precision "${kube_flags[@]}"
### Create valid-pod POD
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml "${kube_flags[@]}"
# Post-condition: valid-pod POD is created
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
## Patch can modify a local object
kubectl patch --local -f pkg/api/validation/testdata/v1/validPod.yaml --patch='{"spec": {"restartPolicy":"Never"}}' -o jsonpath='{.spec.restartPolicy}' | grep -q "Never"
## Patch pod can change image
# Command
kubectl patch "${kube_flags[@]}" pod valid-pod --record -p='{"spec":{"containers":[{"name": "kubernetes-serve-hostname", "image": "nginx"}]}}'
# Post-condition: valid-pod POD has image nginx
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'nginx:'
# Post-condition: valid-pod has the record annotation
kube::test::get_object_assert pods "{{range.items}}{{$annotations_field}}:{{end}}" "${change_cause_annotation}"
# prove that patch can use different types
kubectl patch "${kube_flags[@]}" pod valid-pod --type="json" -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"nginx2"}]'
# Post-condition: valid-pod POD has image nginx
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'nginx2:'
# prove that patch can use different types
kubectl patch "${kube_flags[@]}" pod valid-pod --type="json" -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"nginx"}]'
# Post-condition: valid-pod POD has image nginx
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'nginx:'
# prove that yaml input works too
YAML_PATCH=$'spec:\n containers:\n - name: kubernetes-serve-hostname\n image: changed-with-yaml\n'
kubectl patch "${kube_flags[@]}" pod valid-pod -p="${YAML_PATCH}"
# Post-condition: valid-pod POD has image nginx
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'changed-with-yaml:'
## Patch pod from JSON can change image
# Command
kubectl patch "${kube_flags[@]}" -f test/fixtures/doc-yaml/admin/limitrange/valid-pod.yaml -p='{"spec":{"containers":[{"name": "kubernetes-serve-hostname", "image": "gcr.io/google_containers/pause-amd64:3.0"}]}}'
# Post-condition: valid-pod POD has image gcr.io/google_containers/pause-amd64:3.0
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'gcr.io/google_containers/pause-amd64:3.0:'
## If resourceVersion is specified in the patch, it will be treated as a precondition, i.e., if the resourceVersion is different from that is stored in the server, the Patch should be rejected
ERROR_FILE="${KUBE_TEMP}/conflict-error"
## If the resourceVersion is the same as the one stored in the server, the patch will be applied.
# Command
# Needs to retry because other party may change the resource.
for count in {0..3}; do
resourceVersion=$(kubectl get "${kube_flags[@]}" pod valid-pod -o go-template='{{ .metadata.resourceVersion }}')
kubectl patch "${kube_flags[@]}" pod valid-pod -p='{"spec":{"containers":[{"name": "kubernetes-serve-hostname", "image": "nginx"}]},"metadata":{"resourceVersion":"'$resourceVersion'"}}' 2> "${ERROR_FILE}" || true
if grep -q "the object has been modified" "${ERROR_FILE}"; then
kube::log::status "retry $1, error: $(cat ${ERROR_FILE})"
rm "${ERROR_FILE}"
sleep $((2**count))
else
rm "${ERROR_FILE}"
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'nginx:'
break
fi
done
## If the resourceVersion is the different from the one stored in the server, the patch will be rejected.
resourceVersion=$(kubectl get "${kube_flags[@]}" pod valid-pod -o go-template='{{ .metadata.resourceVersion }}')
((resourceVersion+=100))
# Command
kubectl patch "${kube_flags[@]}" pod valid-pod -p='{"spec":{"containers":[{"name": "kubernetes-serve-hostname", "image": "nginx"}]},"metadata":{"resourceVersion":"'$resourceVersion'"}}' 2> "${ERROR_FILE}" || true
# Post-condition: should get an error reporting the conflict
if grep -q "please apply your changes to the latest version and try again" "${ERROR_FILE}"; then
kube::log::status "\"kubectl patch with resourceVersion $resourceVersion\" returns error as expected: $(cat ${ERROR_FILE})"
else
kube::log::status "\"kubectl patch with resourceVersion $resourceVersion\" returns unexpected error or non-error: $(cat ${ERROR_FILE})"
exit 1
fi
rm "${ERROR_FILE}"
## --force replace pod can change other field, e.g., spec.container.name
# Command
kubectl get "${kube_flags[@]}" pod valid-pod -o json | $SED 's/"kubernetes-serve-hostname"/"replaced-k8s-serve-hostname"/g' > /tmp/tmp-valid-pod.json
kubectl replace "${kube_flags[@]}" --force -f /tmp/tmp-valid-pod.json
# Post-condition: spec.container.name = "replaced-k8s-serve-hostname"
kube::test::get_object_assert 'pod valid-pod' "{{(index .spec.containers 0).name}}" 'replaced-k8s-serve-hostname'
## check replace --grace-period requires --force
output_message=$(! kubectl replace "${kube_flags[@]}" --grace-period=1 -f /tmp/tmp-valid-pod.json 2>&1)
kube::test::if_has_string "${output_message}" '\-\-grace-period must have \-\-force specified'
## check replace --timeout requires --force
output_message=$(! kubectl replace "${kube_flags[@]}" --timeout=1s -f /tmp/tmp-valid-pod.json 2>&1)
kube::test::if_has_string "${output_message}" '\-\-timeout must have \-\-force specified'
#cleaning
rm /tmp/tmp-valid-pod.json
## replace of a cluster scoped resource can succeed
# Pre-condition: a node exists
kubectl create -f - "${kube_flags[@]}" << __EOF__
{
"kind": "Node",
"apiVersion": "v1",
"metadata": {
"name": "node-${version}-test"
}
}
__EOF__
kubectl replace -f - "${kube_flags[@]}" << __EOF__
{
"kind": "Node",
"apiVersion": "v1",
"metadata": {
"name": "node-${version}-test",
"annotations": {"a":"b"}
}
}
__EOF__
# Post-condition: the node command succeeds
kube::test::get_object_assert "node node-${version}-test" "{{.metadata.annotations.a}}" 'b'
kubectl delete node node-${version}-test "${kube_flags[@]}"
## kubectl edit can update the image field of a POD. tmp-editor.sh is a fake editor
echo -e "#!/bin/bash\n$SED -i \"s/nginx/gcr.io\/google_containers\/serve_hostname/g\" \$1" > /tmp/tmp-editor.sh
chmod +x /tmp/tmp-editor.sh
# Pre-condition: valid-pod POD has image nginx
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'nginx:'
EDITOR=/tmp/tmp-editor.sh kubectl edit "${kube_flags[@]}" pods/valid-pod
# Post-condition: valid-pod POD has image gcr.io/google_containers/serve_hostname
kube::test::get_object_assert pods "{{range.items}}{{$image_field}}:{{end}}" 'gcr.io/google_containers/serve_hostname:'
# cleaning
rm /tmp/tmp-editor.sh
## kubectl edit should work on Windows
[ "$(EDITOR=cat kubectl edit pod/valid-pod 2>&1 | grep 'Edit cancelled')" ]
[ "$(EDITOR=cat kubectl edit pod/valid-pod | grep 'name: valid-pod')" ]
[ "$(EDITOR=cat kubectl edit --windows-line-endings pod/valid-pod | file - | grep CRLF)" ]
[ ! "$(EDITOR=cat kubectl edit --windows-line-endings=false pod/valid-pod | file - | grep CRLF)" ]
### Overwriting an existing label is not permitted
# Pre-condition: name is valid-pod
kube::test::get_object_assert 'pod valid-pod' "{{${labels_field}.name}}" 'valid-pod'
# Command
! kubectl label pods valid-pod name=valid-pod-super-sayan "${kube_flags[@]}"
# Post-condition: name is still valid-pod
kube::test::get_object_assert 'pod valid-pod' "{{${labels_field}.name}}" 'valid-pod'
### --overwrite must be used to overwrite existing label, can be applied to all resources
# Pre-condition: name is valid-pod
kube::test::get_object_assert 'pod valid-pod' "{{${labels_field}.name}}" 'valid-pod'
# Command
kubectl label --overwrite pods --all name=valid-pod-super-sayan "${kube_flags[@]}"
# Post-condition: name is valid-pod-super-sayan
kube::test::get_object_assert 'pod valid-pod' "{{${labels_field}.name}}" 'valid-pod-super-sayan'
### Delete POD by label
# Pre-condition: valid-pod POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'valid-pod:'
# Command
kubectl delete pods -l'name in (valid-pod-super-sayan)' --grace-period=0 "${kube_flags[@]}"
# Post-condition: valid-pod POD doesn't exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
### Create two PODs from 1 yaml file
# Pre-condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command
kubectl create -f test/fixtures/doc-yaml/user-guide/multi-pod.yaml "${kube_flags[@]}"
# Post-condition: valid-pod and redis-proxy PODs exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'redis-master:redis-proxy:'
### Delete two PODs from 1 yaml file
# Pre-condition: redis-master and redis-proxy PODs exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" 'redis-master:redis-proxy:'
# Command
kubectl delete -f test/fixtures/doc-yaml/user-guide/multi-pod.yaml "${kube_flags[@]}"
# Post-condition: no PODs exist
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
## kubectl apply should update configuration annotations only if apply is already called
## 1. kubectl create doesn't set the annotation
# Pre-Condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command: create a pod "test-pod"
kubectl create -f hack/testdata/pod.yaml "${kube_flags[@]}"
# Post-Condition: pod "test-pod" is created
kube::test::get_object_assert 'pods test-pod' "{{${labels_field}.name}}" 'test-pod-label'
# Post-Condition: pod "test-pod" doesn't have configuration annotation
! [[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
## 2. kubectl replace doesn't set the annotation
kubectl get pods test-pod -o yaml "${kube_flags[@]}" | $SED 's/test-pod-label/test-pod-replaced/g' > "${KUBE_TEMP}"/test-pod-replace.yaml
# Command: replace the pod "test-pod"
kubectl replace -f "${KUBE_TEMP}"/test-pod-replace.yaml "${kube_flags[@]}"
# Post-Condition: pod "test-pod" is replaced
kube::test::get_object_assert 'pods test-pod' "{{${labels_field}.name}}" 'test-pod-replaced'
# Post-Condition: pod "test-pod" doesn't have configuration annotation
! [[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
## 3. kubectl apply does set the annotation
# Command: apply the pod "test-pod"
kubectl apply -f hack/testdata/pod-apply.yaml "${kube_flags[@]}"
# Post-Condition: pod "test-pod" is applied
kube::test::get_object_assert 'pods test-pod' "{{${labels_field}.name}}" 'test-pod-applied'
# Post-Condition: pod "test-pod" has configuration annotation
[[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration > "${KUBE_TEMP}"/annotation-configuration
## 4. kubectl replace updates an existing annotation
kubectl get pods test-pod -o yaml "${kube_flags[@]}" | $SED 's/test-pod-applied/test-pod-replaced/g' > "${KUBE_TEMP}"/test-pod-replace.yaml
# Command: replace the pod "test-pod"
kubectl replace -f "${KUBE_TEMP}"/test-pod-replace.yaml "${kube_flags[@]}"
# Post-Condition: pod "test-pod" is replaced
kube::test::get_object_assert 'pods test-pod' "{{${labels_field}.name}}" 'test-pod-replaced'
# Post-Condition: pod "test-pod" has configuration annotation, and it's updated (different from the annotation when it's applied)
[[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration > "${KUBE_TEMP}"/annotation-configuration-replaced
! [[ $(diff -q "${KUBE_TEMP}"/annotation-configuration "${KUBE_TEMP}"/annotation-configuration-replaced > /dev/null) ]]
# Clean up
rm "${KUBE_TEMP}"/test-pod-replace.yaml "${KUBE_TEMP}"/annotation-configuration "${KUBE_TEMP}"/annotation-configuration-replaced
kubectl delete pods test-pod "${kube_flags[@]}"
## Configuration annotations should be set when --save-config is enabled
## 1. kubectl create --save-config should generate configuration annotation
# Pre-Condition: no POD exists
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command: create a pod "test-pod"
kubectl create -f hack/testdata/pod.yaml --save-config "${kube_flags[@]}"
# Post-Condition: pod "test-pod" has configuration annotation
[[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Clean up
kubectl delete -f hack/testdata/pod.yaml "${kube_flags[@]}"
## 2. kubectl edit --save-config should generate configuration annotation
# Pre-Condition: no POD exists, then create pod "test-pod", which shouldn't have configuration annotation
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
kubectl create -f hack/testdata/pod.yaml "${kube_flags[@]}"
! [[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Command: edit the pod "test-pod"
temp_editor="${KUBE_TEMP}/tmp-editor.sh"
echo -e "#!/bin/bash\n$SED -i \"s/test-pod-label/test-pod-label-edited/g\" \$@" > "${temp_editor}"
chmod +x "${temp_editor}"
EDITOR=${temp_editor} kubectl edit pod test-pod --save-config "${kube_flags[@]}"
# Post-Condition: pod "test-pod" has configuration annotation
[[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Clean up
kubectl delete -f hack/testdata/pod.yaml "${kube_flags[@]}"
## 3. kubectl replace --save-config should generate configuration annotation
# Pre-Condition: no POD exists, then create pod "test-pod", which shouldn't have configuration annotation
create_and_use_new_namespace
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
kubectl create -f hack/testdata/pod.yaml "${kube_flags[@]}"
! [[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Command: replace the pod "test-pod"
kubectl replace -f hack/testdata/pod.yaml --save-config "${kube_flags[@]}"
# Post-Condition: pod "test-pod" has configuration annotation
[[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Clean up
kubectl delete -f hack/testdata/pod.yaml "${kube_flags[@]}"
## 4. kubectl run --save-config should generate configuration annotation
# Pre-Condition: no RC exists
kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" ''
# Command: create the rc "nginx" with image nginx
kubectl run nginx "--image=$IMAGE_NGINX" --save-config --generator=run/v1 "${kube_flags[@]}"
# Post-Condition: rc "nginx" has configuration annotation
[[ "$(kubectl get rc nginx -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
## 5. kubectl expose --save-config should generate configuration annotation
# Pre-Condition: no service exists
kube::test::get_object_assert svc "{{range.items}}{{$id_field}}:{{end}}" ''
# Command: expose the rc "nginx"
kubectl expose rc nginx --save-config --port=80 --target-port=8000 "${kube_flags[@]}"
# Post-Condition: service "nginx" has configuration annotation
[[ "$(kubectl get svc nginx -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Clean up
kubectl delete rc,svc nginx
## 6. kubectl autoscale --save-config should generate configuration annotation
# Pre-Condition: no RC exists, then create the rc "frontend", which shouldn't have configuration annotation
kube::test::get_object_assert rc "{{range.items}}{{$id_field}}:{{end}}" ''
kubectl create -f hack/testdata/frontend-controller.yaml "${kube_flags[@]}"
! [[ "$(kubectl get rc frontend -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Command: autoscale rc "frontend"
kubectl autoscale -f hack/testdata/frontend-controller.yaml --save-config "${kube_flags[@]}" --max=2
# Post-Condition: hpa "frontend" has configuration annotation
[[ "$(kubectl get hpa.v1beta1.extensions frontend -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Ensure we can interact with HPA objects in lists through both the extensions/v1beta1 and autoscaling/v1 APIs
output_message=$(kubectl get hpa -o=jsonpath='{.items[0].apiVersion}' 2>&1 "${kube_flags[@]}")
kube::test::if_has_string "${output_message}" 'autoscaling/v1'
output_message=$(kubectl get hpa.extensions -o=jsonpath='{.items[0].apiVersion}' 2>&1 "${kube_flags[@]}")
kube::test::if_has_string "${output_message}" 'extensions/v1beta1'
output_message=$(kubectl get hpa.autoscaling -o=jsonpath='{.items[0].apiVersion}' 2>&1 "${kube_flags[@]}")
kube::test::if_has_string "${output_message}" 'autoscaling/v1'
# tests kubectl group prefix matching
output_message=$(kubectl get hpa.autoscal -o=jsonpath='{.items[0].apiVersion}' 2>&1 "${kube_flags[@]}")
kube::test::if_has_string "${output_message}" 'autoscaling/v1'
# Clean up
# Note that we should delete hpa first, otherwise it may fight with the rc reaper.
kubectl delete hpa frontend "${kube_flags[@]}"
kubectl delete rc frontend "${kube_flags[@]}"
## kubectl create should not panic on empty string lists in a template
ERROR_FILE="${KUBE_TEMP}/validation-error"
kubectl create -f hack/testdata/invalid-rc-with-empty-args.yaml "${kube_flags[@]}" 2> "${ERROR_FILE}" || true
# Post-condition: should get an error reporting the empty string
if grep -q "unexpected nil value for field" "${ERROR_FILE}"; then
kube::log::status "\"kubectl create with empty string list returns error as expected: $(cat ${ERROR_FILE})"
else
kube::log::status "\"kubectl create with empty string list returns unexpected error or non-error: $(cat ${ERROR_FILE})"
exit 1
fi
rm "${ERROR_FILE}"
## kubectl apply should create the resource that doesn't exist yet
# Pre-Condition: no POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# Command: apply a pod "test-pod" (doesn't exist) should create this pod
kubectl apply -f hack/testdata/pod.yaml "${kube_flags[@]}"
# Post-Condition: pod "test-pod" is created
kube::test::get_object_assert 'pods test-pod' "{{${labels_field}.name}}" 'test-pod-label'
# Post-Condition: pod "test-pod" has configuration annotation
[[ "$(kubectl get pods test-pod -o yaml "${kube_flags[@]}" | grep kubectl.kubernetes.io/last-applied-configuration)" ]]
# Clean up
kubectl delete pods test-pod "${kube_flags[@]}"
## kubectl apply -f with label selector should only apply matching objects
# Pre-Condition: no POD exists
kube::test::get_object_assert pods "{{range.items}}{{$id_field}}:{{end}}" ''
# apply
kubectl apply -l unique-label=bingbang -f hack/testdata/filter "${kube_flags[@]}"