-
Notifications
You must be signed in to change notification settings - Fork 0
/
lab-logs
8432 lines (7446 loc) · 427 KB
/
lab-logs
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
[student@workstation ~]$ lab-configure
. Enter the GitHub account name: veerabose
Verifying GitHub account name: veerabose
. Enter the Quay.io account name: veeraabose
Verifying Quay.io account name: veeraabose
. Configuring RHT_OCP4_GITHUB_USER variable: SUCCESS
. Configuring RHT_OCP4_QUAY_USER variable: SUCCESS
. To reconfigure, run: lab-configure -d
. Ensuring user 'developer' can log in to the OpenShift cluster.
Warning: Permanently added 'utility,172.25.250.253' (ECDSA) to the list of known hosts.
ERROR: Cannot currently log in as user kubeadmin.
[student@workstation ~]$ ^C
[student@workstation ~]$ ^C
[student@workstation ~]$ https://github.com/veerabose/DO180-apps.git
bash: https://github.com/veerabose/DO180-apps.git: No such file or directory
[student@workstation ~]$ git clone https://github.com/veerabose/DO180-apps.git
Cloning into 'DO180-apps'...
remote: Enumerating objects: 172, done.
remote: Total 172 (delta 0), reused 0 (delta 0), pack-reused 172
Receiving objects: 100% (172/172), 287.19 KiB | 480.00 KiB/s, done.
Resolving deltas: 100% (70/70), done.
[student@workstation ~]$ ls
Desktop DO180-apps Documents Downloads Music Pictures Public Templates Videos
[student@workstation ~]$ cd DO180-apps/
[student@workstation DO180-apps]$ git status
On branch master
Your branch is up to date with 'origin/master'.
nothing to commit, working tree clean
[student@workstation DO180-apps]$
[student@workstation DO180-apps]$ git checkout -b testbranch
Switched to a new branch testbranch
[student@workstation DO180-apps]$ git add .
[student@workstation DO180-apps]$ git commit -m "DO180"
[testbranch a2978b1] DO180
1 file changed, 1 insertion(+)
create mode 100644 TEST
[student@workstation DO180-apps]$ git push --set-upstream origin testbranch
Gtk-Message: 12:09:29.984: Failed to load module "canberra-gtk-module"
Gtk-Message: 12:09:42.026: Failed to load module "canberra-gtk-module"
remote: No anonymous write access.
fatal: Authentication failed for 'https://github.com/veerabose/DO180-apps.git/'
[student@workstation DO180-apps]$ git push --set-upstream origin testbranch
Gtk-Message: 12:10:00.358: Failed to load module "canberra-gtk-module"
Gtk-Message: 12:10:21.575: Failed to load module "canberra-gtk-module"
Enumerating objects: 4, done.
Counting objects: 100% (4/4), done.
Delta compression using up to 2 threads
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 285 bytes | 285.00 KiB/s, done.
Total 3 (delta 1), reused 0 (delta 0), pack-reused 0
remote: Resolving deltas: 100% (1/1), completed with 1 local object.
remote:
remote: Create a pull request for 'testbranch' on GitHub by visiting:
remote: https://github.com/veerabose/DO180-apps/pull/new/testbranch
remote:
To https://github.com/veerabose/DO180-apps.git
* [new branch] testbranch -> testbranch
Branch 'testbranch' set up to track remote branch 'testbranch' from 'origin'.
[student@workstation DO180-apps]$ echo "OCP4" > TEST
[student@workstation DO180-apps]$ git add .
[student@workstation DO180-apps]$ git commit -m "OCP4"
[testbranch 00edc58] OCP4
1 file changed, 1 insertion(+), 1 deletion(-)
[student@workstation DO180-apps]$ git push
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 2 threads
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 274 bytes | 274.00 KiB/s, done.
Total 3 (delta 1), reused 0 (delta 0), pack-reused 0
remote: Resolving deltas: 100% (1/1), completed with 1 local object.
To https://github.com/veerabose/DO180-apps.git
a2978b1..00edc58 testbranch -> testbranch
[student@workstation DO180-apps]$
----------------------
In this chapter, you learned:
• Containers are isolated application runtimes, created with very little overhead.
• A container image packages an application with all of its dependencies, making it easier to run
the application in different environments.
• Applications such as Podman create containers using features of the standard Linux kernel.
• Container image registries are the preferred mechanism for distributing container images to
multiple users and hosts.
• OpenShift orchestrates applications composed of multiple containers using Kubernetes.
• Kubernetes manages load balancing, high availability, and persistent storage for containerized
applications.
• OpenShift adds to Kubernetes multitenancy, security, ease of use, and continuous integration
and continuous development features.
• OpenShift routes enable external access to containerized applications in a manageable way.
---------------------------------------------
[student@workstation DO180-apps]$ lab container-create start
Setting up workstation for the Guided Exercise: Creating a MySQL database instance
· Checking podman configuration............................... SUCCESS
· Creating create_table.txt file.............................. SUCCESS
[student@workstation DO180-apps]$ podman login registry.redhat.io
Username: veeraabose
Password:
Login Succeeded!
[student@workstation DO180-apps]$
[student@workstation DO180-apps]$ podman run --name mysql-basic -e MYSQL_USER=user1 -e MYSQL_PASSWORD=mypa55 -e MYSQL_DATABASE=items -e MYSQL_ROOT_PASSWORD=r00tpa55 -d registry.redhat.io/rhel8/mysql-80:1
Trying to pull registry.redhat.io/rhel8/mysql-80:1...
Getting image source signatures
Checking if image destination supports signatures
Copying blob 36bead343ed7 done
Copying blob e556e33d0b40 done
Copying blob 1b3417e31a5e done
Copying blob 809fe483e885 done
Copying config 82eb01fb3a done
Writing manifest to image destination
Storing signatures
770f4a2f7d0092db37f1ecbee7346ba52d13eb7ef9429259a2db7f5d83b01e24
[student@workstation DO180-apps]$ podman ps --format "{{.ID}} {{.Image}} {{.Names}}"
770f4a2f7d00 registry.redhat.io/rhel8/mysql-80:1 mysql-basic
[student@workstation DO180-apps]$ podman exec -it mysql-basic /bin/bash
bash-4.4$ mysql -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| items |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
mysql> USE items;
Database changed
mysql>
mysql> CREATE TABLE Projects (id int NOT NULL,
-> name varchar(255) DEFAULT NULL,
-> code varchar(255) DEFAULT NULL,
-> PRIMARY KEY (id));
Query OK, 0 rows affected (0.06 sec)
mysql> SHOW TABLES;
+-----------------+
| Tables_in_items |
+-----------------+
| Projects |
+-----------------+
1 row in set (0.00 sec)
mysql> INSERT INTO Projects (id, name, code) VALUES (1,'DevOps','DO180');
Query OK, 1 row affected (0.02 sec)
mysql> SELECT * FROM Projects;
+----+--------+-------+
| id | name | code |
+----+--------+-------+
| 1 | DevOps | DO180 |
+----+--------+-------+
1 row in set (0.00 sec)
mysql>
mysql> exit
Bye
bash-4.4$ exit
exit
[student@workstation DO180-apps]$
[student@workstation DO180-apps]$ lab container-create finish
Completing the Guided Exercise: Creating a MySQL database instance
· Removing "mysql-basic" container............................ SUCCESS
· Removing "registry.redhat.io/rhel8/mysql-80:1" image........ SUCCESS
[student@workstation DO180-apps]$
Summary
-------------------------------------------
In this chapter, you learned:
• Podman allows users to search for and download images from local or remote registries.
• The podman run command creates and starts a container from a container image.
• Containers are executed in the background by using the -d flag, or interactively by using the -
it flag.
• Some container images require environment variables that are set using the -e option with the
podman run command.
• Red Hat Container Catalog assists in searching, exploring, and analyzing container images from
Red Hat's official container image repository.
----------------------------------------------06Oct2022--------------------------------------------
[student@workstation ~]$ lab manage-lifecycle start
Setting up workstation for the Guided Excercise: Managing a MySQL Container
· Checking podman configuration............................... SUCCESS
· Setting up labs folder...................................... SUCCESS
· Downloading starter project................................. SUCCESS
· Downloading solution project................................ SUCCESS
Setup successful. Please proceed with the exercise.
[student@workstation ~]$ podman login registry.redhat.io
Authenticating with existing credentials for registry.redhat.io
Existing credentials are valid. Already logged in to registry.redhat.io
[student@workstation ~]$ podman run --name mysql-db registry.redhat.io/rhel8/mysql-80:1
Trying to pull registry.redhat.io/rhel8/mysql-80:1...
Getting image source signatures
Checking if image destination supports signatures
Copying blob 36bead343ed7 done
Copying blob 1b3417e31a5e done
Copying blob 1770f4614fe5 done
Copying blob 809fe483e885 done
Copying config b5b0298033 done
Writing manifest to image destination
Storing signatures
=> sourcing 20-validate-variables.sh ...
You must either specify the following environment variables:
MYSQL_USER (regex: '^[a-zA-Z0-9_]+$')
MYSQL_PASSWORD (regex: '^[a-zA-Z0-9_~!@#$%^&*()-=<>,.?;:|]+$')
MYSQL_DATABASE (regex: '^[a-zA-Z0-9_]+$')
Or the following environment variable:
MYSQL_ROOT_PASSWORD (regex: '^[a-zA-Z0-9_~!@#$%^&*()-=<>,.?;:|]+$')
Or both.
Optional Settings:
MYSQL_LOWER_CASE_TABLE_NAMES (default: 0)
MYSQL_LOG_QUERIES_ENABLED (default: 0)
MYSQL_MAX_CONNECTIONS (default: 151)
MYSQL_FT_MIN_WORD_LEN (default: 4)
MYSQL_FT_MAX_WORD_LEN (default: 20)
MYSQL_AIO (default: 1)
MYSQL_KEY_BUFFER_SIZE (default: 32M or 10% of available memory)
MYSQL_MAX_ALLOWED_PACKET (default: 200M)
MYSQL_TABLE_OPEN_CACHE (default: 400)
MYSQL_SORT_BUFFER_SIZE (default: 256K)
MYSQL_READ_BUFFER_SIZE (default: 8M or 5% of available memory)
MYSQL_INNODB_BUFFER_POOL_SIZE (default: 32M or 50% of available memory)
MYSQL_INNODB_LOG_FILE_SIZE (default: 8M or 15% of available memory)
MYSQL_INNODB_LOG_BUFFER_SIZE (default: 8M or 15% of available memory)
For more information, see https://github.com/sclorg/mysql-container
[student@workstation ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[student@workstation ~]$ podman ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1004d03199c9 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 50 seconds ago Exited (1) 51 seconds ago mysql-db
[student@workstation ~]$ podman logs mysql-db
=> sourcing 20-validate-variables.sh ...
You must either specify the following environment variables:
MYSQL_USER (regex: '^[a-zA-Z0-9_]+$')
MYSQL_PASSWORD (regex: '^[a-zA-Z0-9_~!@#$%^&*()-=<>,.?;:|]+$')
MYSQL_DATABASE (regex: '^[a-zA-Z0-9_]+$')
Or the following environment variable:
MYSQL_ROOT_PASSWORD (regex: '^[a-zA-Z0-9_~!@#$%^&*()-=<>,.?;:|]+$')
Or both.
Optional Settings:
MYSQL_LOWER_CASE_TABLE_NAMES (default: 0)
MYSQL_LOG_QUERIES_ENABLED (default: 0)
MYSQL_MAX_CONNECTIONS (default: 151)
MYSQL_FT_MIN_WORD_LEN (default: 4)
MYSQL_FT_MAX_WORD_LEN (default: 20)
MYSQL_AIO (default: 1)
MYSQL_KEY_BUFFER_SIZE (default: 32M or 10% of available memory)
MYSQL_MAX_ALLOWED_PACKET (default: 200M)
MYSQL_TABLE_OPEN_CACHE (default: 400)
MYSQL_SORT_BUFFER_SIZE (default: 256K)
MYSQL_READ_BUFFER_SIZE (default: 8M or 5% of available memory)
MYSQL_INNODB_BUFFER_POOL_SIZE (default: 32M or 50% of available memory)
MYSQL_INNODB_LOG_FILE_SIZE (default: 8M or 15% of available memory)
MYSQL_INNODB_LOG_BUFFER_SIZE (default: 8M or 15% of available memory)
For more information, see https://github.com/sclorg/mysql-container
[student@workstation ~]$ podman run --name mysql -d -e MYSQL_USER=user1 -e MYSQL_PASSWORD=mypa55 -e MYSQL_DATABASE=items -e MYSQL_ROOT_PASSWORD=r00tpa55 registry.redhat.io/rhel8/mysql-80:1
2945d6aa479b1190c4bcabfa559059defe11794b398e1899acf9527aed01b0a4
[student@workstation ~]$ podman ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1004d03199c9 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 8 minutes ago Exited (1) 8 minutes ago mysql-db
2945d6aa479b registry.redhat.io/rhel8/mysql-80:1 run-mysqld 6 seconds ago Up 7 seconds ago mysql
[student@workstation ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2945d6aa479b registry.redhat.io/rhel8/mysql-80:1 run-mysqld 12 seconds ago Up 12 seconds ago mysql
[student@workstation ~]$ podman cp ~/DO180/labs/manage-lifecycle/db.sql mysql:/
[student@workstation ~]$ cat DO180/labs/manage-lifecycle/db.sql
CREATE TABLE `Projects` (id int(11) NOT NULL, `name` varchar(255) DEFAULT NULL, `code` varchar(255) DEFAULT NULL, PRIMARY KEY (id));
insert into `Projects` (`id`, `name`, `code`) values (1,'DevOps','DO180');
[student@workstation ~]$
[student@workstation ~]$ podman exec mysql /bin/bash -c 'mysql -uuser1 -pmypa55 items < /db.sql'
mysql: [Warning] Using a password on the command line interface can be insecure.
[student@workstation ~]$ podman run --name mysql-2 -it registry.redhat.io/rhel8/mysql-80:1 /bin/bash
bash-4.4$ mysql -uroot
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
bash-4.4$ exit
exit
[student@workstation ~]$ podman ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1004d03199c9 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 16 minutes ago Exited (1) 16 minutes ago mysql-db
2945d6aa479b registry.redhat.io/rhel8/mysql-80:1 run-mysqld 7 minutes ago Up 7 minutes ago mysql
913c1f90aa08 registry.redhat.io/rhel8/mysql-80:1 /bin/bash 3 minutes ago Exited (1) About a minute ago mysql-2
[student@workstation ~]$ podman exec mysql /bin/bash -c 'mysql -uuser1 -pmypa55 -e "select * from items.Projects;"'
mysql: [Warning] Using a password on the command line interface can be insecure.
id name code
1 DevOps DO180
[student@workstation ~]$ lab manage-lifecycle finish
Completing the Guided Excercise: Managing a MySQL Container
· Stopping 'mysql' container.................................. SUCCESS
· Stopping 'mysql-2' container................................ SUCCESS
· Removing 'mysql' container.................................. SUCCESS
· Removing 'mysql-2' container................................ SUCCESS
· Removing 'mysql-db' container............................... SUCCESS
· Removing 'registry.redhat.io/rhel8/mysql-80:1' image........ SUCCESS
· Removing the project directory.............................. SUCCESS
· Removing the solution directory............................. SUCCESS
[student@workstation ~]$
--------------------------------------Create MySQL Container with Persistent
Database-------------
[student@workstation ~]$ lab manage-storage start
Setting up workstation for the Guided Exercise: Persisting a MySQL Database
· Checking podman configuration............................... SUCCESS
· Check if the directory used by lab is not created........... SUCCESS
[student@workstation ~]$ mkdir -vp /home/student/local/mysql
mkdir: created directory '/home/student/local/mysql'
[student@workstation ~]$ sudo semanage fcontext -a -t container_file_t '/home/student/local/mysql(/.*)?'
ValueError: File context for /home/student/local/mysql(/.*)? already defined
[student@workstation ~]$ sudo restorecon -R /home/student/local/mysql
[student@workstation ~]$ ls -ldZ /home/student/local/mysql
drwxrwxr-x. 2 student student unconfined_u:object_r:container_file_t:s0 6 Oct 6 12:43 /home/student/local/mysql
[student@workstation ~]$ podman unshare chown 27:27 /home/student/local/mysql
[student@workstation ~]$ podman login registry.redhat.io
Username: veeraabose
Password:
Login Succeeded!
[student@workstation ~]$ podman pull registry.redhat.io/rhel8/mysql-80:1
Trying to pull registry.redhat.io/rhel8/mysql-80:1...
Getting image source signatures
Checking if image destination supports signatures
Copying blob 36bead343ed7 done
Copying blob 809fe483e885 done
Copying blob 1770f4614fe5 done
Copying blob 1b3417e31a5e done
Copying config b5b0298033 done
Writing manifest to image destination
Storing signatures
b5b0298033611d0c00b66d8664f60997908e9b8ec0e131a5a124783879951bf2
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
registry.redhat.io/rhel8/mysql-80 1 b5b029803361 2 days ago 624 MB
[student@workstation ~]$ podman run --name persist-db -d -v /home/student/local/mysql:/var/lib/mysql/data -e MYSQL_USER=user1 -e MYSQL_PASSWORD=mypa55 -e MYSQL_DATABASE=items -e MYSQL_ROOT_PASSWORD=r00tpa55 registry.redhat.io/rhel8/mysql-80:1
8d709d45239b043b104a4c137de4bdfaf5470ab7c4755cfc73d7073eb841491f
[student@workstation ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8d709d45239b registry.redhat.io/rhel8/mysql-80:1 run-mysqld 8 seconds ago Up 8 seconds ago persist-db
[student@workstation ~]$ podman ps --format="{{.ID}} {{.Names}} {{.Status}}"
8d709d45239b persist-db Up 38 seconds ago
[student@workstation ~]$ ls -ld /home/student/local/mysql/items
drwxr-x---. 2 100026 100026 6 Oct 6 12:49 /home/student/local/mysql/items
[student@workstation ~]$ date
Thu Oct 6 12:50:38 EDT 2022
[student@workstation ~]$ lab manage-storage finish
Completing the Guided Exercise: Persisting a MySQL Database
· Stopping 'persist-db' container............................. SUCCESS
· Removing 'persist-db' container............................. SUCCESS
· Removing the 'registry.redhat.io/rhel8/mysql-80:1' image.... SUCCESS
· Removing the /home/student/local/mysql directory............ SUCCESS
· Removing the fcontext for /home/student/local/mysql......... SUCCESS
[student@workstation ~]$
----------------------------------------GE--Loading the Database------------------------
[student@workstation ~]$ lab manage-networking start
Setting up workstation for the Guided Exercise: Loading the Database
· Checking podman configuration............................... SUCCESS
· Creating a host directory for the database container:
· Adding fcontext policy for /home/student/local/mysql...... SUCCESS
· Creating the /home/student/local/mysql directory.......... SUCCESS
· Apply fcontext policy to /home/student/local/mysql........ SUCCESS
· Change owner of the /home/student/local/mysql to the mysql SUCCESS
· Downloading starter project................................. SUCCESS
· Downloading solution project................................ SUCCESS
Setup successful. Please proceed with the exercise.
[student@workstation ~]$ podman login registry.redhat.io
Authenticating with existing credentials for registry.redhat.io
Existing credentials are valid. Already logged in to registry.redhat.io
[student@workstation ~]$ podman run --name mysqldb-port -d -v /home/student/local/mysql:/var/lib/mysql/data -p 13306:3306 -e MYSQL_USER=user1 -e MYSQL_PASSWORD=mypa55 -e MYSQL_DATABASE=items -e MYSQL_ROOT_PASSWORD=r00tpa55 registry.redhat.io/rhel8/mysql-80:1
Trying to pull registry.redhat.io/rhel8/mysql-80:1...
Getting image source signatures
Checking if image destination supports signatures
Copying blob 809fe483e885 done
Copying blob 36bead343ed7 done
Copying blob 1770f4614fe5 done
Copying blob 1b3417e31a5e done
Copying config b5b0298033 done
Writing manifest to image destination
Storing signatures
3c57290e0e84e99143d43483353dd46fea2837ba7247172fe179ef795bab4bf1
[student@workstation ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3c57290e0e84 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 29 seconds ago Up 29 seconds ago 0.0.0.0:13306->3306/tcp mysqldb-port
[student@workstation ~]$ 0.0.0.0:13306->3306/tcp mysqldb-port
bash: 3306/tcp: No such file or directory
[student@workstation ~]$ podman ps --format="{{.ID}} {{.Names}} {{.Ports}}"
3c57290e0e84 mysqldb-port 0.0.0.0:13306->3306/tcp
[student@workstation ~]$ mysql -uuser1 -h 127.0.0.1 -pmypa55 -P13306 items < /home/student/DO180/labs/manage-networking/db.sql
mysql: [Warning] Using a password on the command line interface can be insecure.
[student@workstation ~]$ podman exec -it mysqldb-port mysql -uroot items -e "SELECT * FROM Item"
+----+-------------------+------+
| id | description | done |
+----+-------------------+------+
| 1 | Pick up newspaper | 0 |
| 2 | Buy groceries | 1 |
+----+-------------------+------+
[student@workstation ~]$ cat /home/student/DO180/labs/manage-networking/db.sql
CREATE TABLE `Item` (`id` BIGINT not null auto_increment primary key, `description` VARCHAR(100), `done` INT);
INSERT INTO `Item` (`id`,`description`,`done`) VALUES (1,'Pick up newspaper', 0);
INSERT INTO `Item` (`id`,`description`,`done`) VALUES (2,'Buy groceries', 1);
[student@workstation ~]$ mysql -uuser1 -h 127.0.0.1 -pmypa55 -P13306 items -e "SELECT * FROM Item"
mysql: [Warning] Using a password on the command line interface can be insecure.
+----+-------------------+------+
| id | description | done |
+----+-------------------+------+
| 1 | Pick up newspaper | 0 |
| 2 | Buy groceries | 1 |
+----+-------------------+------+
[student@workstation ~]$ podman exec -it mysqldb-port /bin/bash
bash-4.4$ mysql -uroot items -e "SELECT * FROM Item"
+----+-------------------+------+
| id | description | done |
+----+-------------------+------+
| 1 | Pick up newspaper | 0 |
| 2 | Buy groceries | 1 |
+----+-------------------+------+
bash-4.4$ exit
exit
[student@workstation ~]$ lab manage-networking finish
Completing the Guided Exercise: Loading the Database
· Stopping the 'mysqldb-port' container....................... SUCCESS
· Removing the 'mysqldb-port' container....................... SUCCESS
· Removing the 'registry.redhat.io/rhel8/mysql-80:1' image.... SUCCESS
· Removing the /home/student/local/mysql directory............ SUCCESS
· Removing the fcontext for /home/student/local/mysql......... SUCCESS
-------------------------------------------LAB: Managing Containers -----------------------------------------
[student@workstation ~]$ lab manage-review start
Setting up workstation for the Lab: Managing Containers
· Checking podman configuration............................... SUCCESS
· Check that /home/student/local/mysql does not exist......... SUCCESS
· Downloading starter project................................. SUCCESS
· Downloading solution project................................ SUCCESS
Setup successful. Please proceed with the exercise.
[student@workstation ~]$ mkdir -vp /home/student/local/mysql
mkdir: created directory '/home/student/local/mysql'
[student@workstation ~]$ sudo semanage fcontext -a -t container_file_t '/home/student/local/mysql(/.*)?'
[student@workstation ~]$ sudo restorecon -R /home/student/local/mysql
[student@workstation ~]$ podman unshare chown -Rv 27:27 /home/student/local/mysql
changed ownership of '/home/student/local/mysql' from root:root to 27:27
[student@workstation ~]$ podman login registry.redhat.io
Authenticating with existing credentials for registry.redhat.io
Existing credentials are valid. Already logged in to registry.redhat.io
[student@workstation ~]$ podman run --name mysql-1 -p 13306:3306 -d -v /home/student/local/mysql:/var/lib/mysql/data -e MYSQL_USER=user1 -e MYSQL_PASSWORD=mypa55 -e MYSQL_DATABASE=items -e MYSQL_ROOT_PASSWORD=r00tpa55 registry.redhat.io/rhel8/mysql-80:1
Trying to pull registry.redhat.io/rhel8/mysql-80:1...
Getting image source signatures
Checking if image destination supports signatures
Copying blob 1b3417e31a5e done
Copying blob 36bead343ed7 done
Copying blob 809fe483e885 done
Copying blob 1770f4614fe5 done
Copying config b5b0298033 done
Writing manifest to image destination
Storing signatures
de4c7277c799b456434e155757da10f5d42ccb9e5bff629791edc9da842496a1
[student@workstation ~]$ podman ps --format="{{.ID}} {{.Names}}"
de4c7277c799 mysql-1
[student@workstation ~]$ mysql -uuser1 -h 127.0.0.1 -pmypa55 -P13306 items < /home/student/DO180/labs/manage-review/db.sql
mysql: [Warning] Using a password on the command line interface can be insecure.
[student@workstation ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
de4c7277c799 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 2 minutes ago Up 2 minutes ago 0.0.0.0:13306->3306/tcp mysql-1
[student@workstation ~]$ mysql -uuser1 -h 127.0.0.1 -pmypa55 -P13306 items -e "SELECT * FROM Item"
mysql: [Warning] Using a password on the command line interface can be insecure.
+----+-------------------+------+
| id | description | done |
+----+-------------------+------+
| 1 | Pick up newspaper | 0 |
| 2 | Buy groceries | 1 |
+----+-------------------+------+
[student@workstation ~]$ podman stop mysql-1
mysql-1
[student@workstation ~]$ podman ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
de4c7277c799 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 3 minutes ago Exited (0) 6 seconds ago 0.0.0.0:13306->3306/tcp mysql-1
[student@workstation ~]$ podman run --name mysql-2 -p 13306:3306 -d -v /home/student/local/mysql:/var/lib/mysql/data -e MYSQL_USER=user1 -e MYSQL_PASSWORD=mypa55 -e MYSQL_DATABASE=items -e MYSQL_ROOT_PASSWORD=r00tpa55 registry.redhat.io/rhel8/mysql-80:1
481659683cd858b8d285dacec55cc132ea6e056d736a997669596862c930a142
[student@workstation ~]$ podman ps --format="{{.ID}} {{.Names}}"
481659683cd8 mysql-2
[student@workstation ~]$ podman ps -a > /tmp/my-containers
[student@workstation ~]$ cat /tmp/my-containers
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
de4c7277c799 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 6 minutes ago Exited (0) 2 minutes ago 0.0.0.0:13306->3306/tcp mysql-1
481659683cd8 registry.redhat.io/rhel8/mysql-80:1 run-mysqld 40 seconds ago Up 40 seconds ago 0.0.0.0:13306->3306/tcp mysql-2
[student@workstation ~]$ podman exec -it mysql-2 /bin/bash
bash-4.4$ mysql -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| items |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
mysql> USE items;
Database changed
mysql> SHOW TABLES;
+-----------------+
| Tables_in_items |
+-----------------+
| Item |
+-----------------+
1 row in set (0.00 sec)
mysql> SELECT * FROM Item;
+----+-------------------+------+
| id | description | done |
+----+-------------------+------+
| 1 | Pick up newspaper | 0 |
| 2 | Buy groceries | 1 |
+----+-------------------+------+
2 rows in set (0.00 sec)
mysql> exit
Bye
bash-4.4$ exit
exit
[student@workstation ~]$ mysql -uuser1 -h workstation.lab.example.com -pmypa55 -P13306 items
mysql: [Warning] Using a password on the command line interface can be insecure.
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> INSERT INTO Item (description, done) VALUES ('Finished lab', 1);
Query OK, 1 row affected (0.02 sec)
mysql> SELECT * from Item;
+----+-------------------+------+
| id | description | done |
+----+-------------------+------+
| 1 | Pick up newspaper | 0 |
| 2 | Buy groceries | 1 |
| 3 | Finished lab | 1 |
+----+-------------------+------+
3 rows in set (0.01 sec)
mysql> exit
Bye
[student@workstation ~]$ podman rm mysql-1
de4c7277c799b456434e155757da10f5d42ccb9e5bff629791edc9da842496a1
[student@workstation ~]$ lab manage-review grade
Grading the student's work for the Lab: Managing Containers
· Checking if the /home/student/local/mysql folder exists..... PASS
· Checking if owner was changed............................... PASS
· Checking if the container mysql-1 was created............... PASS
· Checking if the mysql-2 container is running................ PASS
· Checking tables for the 'Finished lab' row.................. PASS
[student@workstation ~]$ lab manage-review finish
Completing the Lab: Managing Containers
· Removing the /home/student/local/mysql folder............... SUCCESS
· Removing the fcontext for /home/student/local/mysql......... SUCCESS
· Stopping mysql-1 container.................................. SUCCESS
· Removing mysql-1 container.................................. SUCCESS
· Stopping mysql-2 container.................................. SUCCESS
· Removing mysql-2 container.................................. SUCCESS
· Removing MySQL container image.............................. SUCCESS
· Removing temporary file..................................... SUCCESS
· Removing the project directory.............................. SUCCESS
· Removing the solution directory............................. SUCCESS
[student@workstation ~]$
Summary
-----------
In this chapter, you learned:
• Podman has subcommands to: create a new container (run), delete a container (rm), list
containers (ps), stop a container (stop), and start a process in a container (exec).
• Default container storage is ephemeral, meaning its contents are not present after the container
is removed.
• Containers can use a folder from the host file system to work with persistent data.
• Podman mounts volumes in a container with the -v option in the podman run command.
• The podman exec command starts an additional process inside a running container.
• Podman maps local ports to container ports by using the -p option in the run subcommand.
-----------------------Chapter 4 -----------------------------------------------
[student@workstation ~]$ lab image-operations start
Setting up workstation for the GE: Creating a Custom Apache Container Image
· Checking podman configuration............................... SUCCESS
[student@workstation ~]$ podman login quay.io
Username: veeraabose
Password:
Login Succeeded!
[student@workstation ~]$ podman run -d --name official-httpd -p 8180:80 quay.io/redhattraining/httpd-parent
Trying to pull quay.io/redhattraining/httpd-parent:latest...
Getting image source signatures
Copying blob a3ed95caeb02 done
Copying blob a3ed95caeb02 done
Copying blob a3ed95caeb02 done
Copying blob 787f47dbeaac done
Copying blob 6a5240d60dc4 done
Copying blob 08b8c9fdec44 done
Copying blob a3ed95caeb02 skipped: already exists
Copying blob a3ed95caeb02 skipped: already exists
Copying blob a3ed95caeb02 skipped: already exists
Copying blob 408208567b9a done
Writing manifest to image destination
Storing signatures
43effcd465811d1388d84ced5f0be49f6d771e13ba624564b16e065865252fb1
[student@workstation ~]$ podman exec -it official-httpd /bin/bash
bash-4.4# cat /var/www/html/index.html
Hello from the httpd-parent container!
bash-4.4# echo "DO180 Page" > /var/www/html/do180.html
bash-4.4# exit
exit
[student@workstation ~]$ curl 127.0.0.1:8180/do180.html
DO180 Page
[student@workstation ~]$ podman diff official-httpd
C /root
A /root/.bash_history
C /run/httpd
A /run/httpd/cgisock.1
A /run/httpd/httpd.pid
C /tmp
C /var
C /var/log
C /var/log/httpd
A /var/log/httpd/access_log
A /var/log/httpd/error_log
C /var/www
C /var/www/html
A /var/www/html/do180.html
[student@workstation ~]$ podman stop official-httpd
official-httpd
[student@workstation ~]$ podman commit -a 'veera' official-httpd do180-custom-httpd
Getting image source signatures
Copying blob 24d85c895b6b skipped: already exists
Copying blob c613b100be16 skipped: already exists
Copying blob 574bcc187eda skipped: already exists
Copying blob 7f9108fde4a1 skipped: already exists
Copying blob bad01b4b4478 done
Copying config 779652b5b0 done
Writing manifest to image destination
Storing signatures
779652b5b0978db3e5b76df85b864d72cfc3c524cbecbc43de7d3af4f74ffb6d
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
localhost/do180-custom-httpd latest 779652b5b097 43 seconds ago 236 MB
quay.io/redhattraining/httpd-parent latest 4346d3cace25 3 years ago 236 MB
[student@workstation ~]$ podman ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
43effcd46581 quay.io/redhattraining/httpd-parent:latest /bin/sh -c /usr/s... 6 minutes ago Exited (0) 2 minutes ago 0.0.0.0:8180->80/tcp official-httpd
[student@workstation ~]$ source /usr/local/etc/ocp4.config
[student@workstation ~]$ cat !$
cat /usr/local/etc/ocp4.config
RHT_OCP4_MASTER_API=https://api.ocp4.example.com:6443
RHT_OCP4_WILDCARD_DOMAIN=apps.ocp4.example.com
RHT_OCP4_NEXUS_SERVER=nexus-common.apps.ocp4.example.com
RHT_OCP4_DEV_USER=developer
RHT_OCP4_DEV_PASSWORD=developer
RHT_OCP4_GITHUB_USER=veerabose
RHT_OCP4_QUAY_USER=veeraabose
RHT_OCP4_USER_PASSWD=redhat
[student@workstation ~]$ podman push quay.io/${RHT_OCP4_QUAY_USER}/do180-custom-httpd:v1.0
Error: quay.io/veeraabose/do180-custom-httpd:v1.0: image not known
[student@workstation ~]$ podman tag do180-custom-httpd quay.io/${RHT_OCP4_QUAY_USER}/do180-custom-httpd:v1.0
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
localhost/do180-custom-httpd latest 779652b5b097 5 minutes ago 236 MB
quay.io/veeraabose/do180-custom-httpd v1.0 779652b5b097 5 minutes ago 236 MB
quay.io/redhattraining/httpd-parent latest 4346d3cace25 3 years ago 236 MB
[student@workstation ~]$ podman push quay.io/${RHT_OCP4_QUAY_USER}/do180-custom-httpd:v1.0
Getting image source signatures
Copying blob bad01b4b4478 done
Copying blob 24d85c895b6b skipped: already exists
Copying blob c613b100be16 skipped: already exists
Copying blob 574bcc187eda skipped: already exists
Copying blob 7f9108fde4a1 skipped: already exists
Copying config 779652b5b0 done
Writing manifest to image destination
Storing signatures
[student@workstation ~]$ podman pull -q quay.io/${RHT_OCP4_QUAY_USER}/do180-custom-httpd:v1.0
779652b5b0978db3e5b76df85b864d72cfc3c524cbecbc43de7d3af4f74ffb6d
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
quay.io/veeraabose/do180-custom-httpd v1.0 779652b5b097 9 minutes ago 236 MB
localhost/do180-custom-httpd latest 779652b5b097 9 minutes ago 236 MB
quay.io/redhattraining/httpd-parent latest 4346d3cace25 3 years ago 236 MB
[student@workstation ~]$ podman run -d --name test-httpd -p 8280:80 ${RHT_OCP4_QUAY_USER}/do180-custom-httpd:v1.0
ef3916ac3ff7889fa60b1ceb5f9e290e959006f2ade53372017e79443813da31
[student@workstation ~]$ curl http://localhost:8280/do180.html
DO180 Page
[student@workstation ~]$ lab image-operations finish
Completing the GE: Creating a Custom Apache Container Image
· Stopping official-httpd container........................... SUCCESS
· Removing official-httpd container........................... SUCCESS
· Stopping test-httpd container............................... SUCCESS
· Removing test-httpd container............................... SUCCESS
· Removing redhattraining/httpd-parent image.................. SUCCESS
· Removing quay.io/veeraabose/do180-custom-httpd image........ SUCCESS
· Removing localhost/do180-custom-httpd image................. SUCCESS
[student@workstation ~]$
-----------------Ch4 - Lab ----------------------------------------------------------
[student@workstation ~]$ lab image-review start
Setting up workstation for the Lab: Managing Images
· Checking podman configuration............................... SUCCESS
[student@workstation ~]$ podman pull quay.io/redhattraining/nginx:1.17
Trying to pull quay.io/redhattraining/nginx:1.17...
Getting image source signatures
Copying blob b00ee4473ca6 skipped: already exists
Copying blob d1a81ca518e2 skipped: already exists
Copying blob c78335199707 skipped: already exists
Copying config 9beeba249f done
Writing manifest to image destination
Storing signatures
9beeba249f3ee158d3e495a6ac25c5667ae2de8a43ac2a8bfd2bf687a58c06c9
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
quay.io/redhattraining/nginx 1.17 9beeba249f3e 2 years ago 131 MB
[student@workstation ~]$ podman run --name official-nginx -d -p 8080:80 quay.io/redhattraining/nginx:1.17
Error: error creating container storage: the container name "official-nginx" is already in use by "38bb58ad3f8734d4fcaac03d5620d7ae567db6fc1f76de378f94f8ce68498dd1". You have to remove that container to be able to reuse that name.: that name is already in use
[student@workstation ~]$ podman rm -f official-nginx
38bb58ad3f8734d4fcaac03d5620d7ae567db6fc1f76de378f94f8ce68498dd1
[student@workstation ~]$ podman run --name official-nginx -d -p 8080:80 quay.io/redhattraining/nginx:1.17
24acad6eb003f0885651d33b353021d3453e2a6debb034b92f08e29a55264718
[student@workstation ~]$ podman exec -it official-nginx /bin/bash
root@24acad6eb003:/# cat /usr/share/nginx/html/index.html
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="http://nginx.org/">nginx.org</a>.<br/>
Commercial support is available at
<a href="http://nginx.com/">nginx.com</a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
root@24acad6eb003:/# echo 'DO180' > /usr/share/nginx/html/index.html
root@24acad6eb003:/# cat /usr/share/nginx/html/index.html
DO180
root@24acad6eb003:/# exit
exit
[student@workstation ~]$ curl 127.0.0.1:8080
DO180
[student@workstation ~]$ podman stop official-nginx
official-nginx
[student@workstation ~]$ podman commit -a 'veera' official-nginx do180/mynginx:v1.0-SNAPSHOT
Getting image source signatures
Copying blob ffc9b21953f4 skipped: already exists
Copying blob 2f4accd375d9 skipped: already exists
Copying blob 6c7de695ede3 skipped: already exists
Copying blob fefe293d37ac done
Copying config b6710f5af7 done
Writing manifest to image destination
Storing signatures
b6710f5af796b1d886012872824d28b3e07891dae7c72113d7592a26bb0866b1
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
localhost/do180/mynginx v1.0-SNAPSHOT b6710f5af796 28 seconds ago 131 MB
quay.io/redhattraining/nginx 1.17 9beeba249f3e 2 years ago 131 MB
[student@workstation ~]$ podman run --name official-nginx-dev -d -p 8080:80 do180/mynginx:v1.0-SNAPSHOT
b1b288b3eeec628bc5ea8155e059380c08b6e6dcfac0e2dc063fde9748e73526
[student@workstation ~]$ podman ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b1b288b3eeec localhost/do180/mynginx:v1.0-SNAPSHOT nginx -g daemon o... 7 seconds ago Up 8 seconds ago 0.0.0.0:8080->80/tcp official-nginx-dev
[student@workstation ~]$ podman exec -it official-nginx-dev /bin/bash
root@b1b288b3eeec:/# cat /usr/share/nginx/html/index.html
DO180
root@b1b288b3eeec:/# echo 'DO180 Page' > /usr/share/nginx/html/index.html
root@b1b288b3eeec:/# exit
exit
[student@workstation ~]$ podman stop official-nginx-dev
official-nginx-dev
[student@workstation ~]$ podman commit -a 'veera' official-nginx-dev do180/mynginx:v1.0
Getting image source signatures
Copying blob ffc9b21953f4 skipped: already exists
Copying blob 2f4accd375d9 skipped: already exists
Copying blob 6c7de695ede3 skipped: already exists
Copying blob fefe293d37ac skipped: already exists
Copying blob aaf4fa91f1ff done
Copying config 9f4c6deb97 done
Writing manifest to image destination
Storing signatures
9f4c6deb9792a13f121da1a44a259612d635090fd3835070fdee8a0a1e4588a5
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
localhost/do180/mynginx v1.0 9f4c6deb9792 26 seconds ago 131 MB
localhost/do180/mynginx v1.0-SNAPSHOT b6710f5af796 7 minutes ago 131 MB
quay.io/redhattraining/nginx 1.17 9beeba249f3e 2 years ago 131 MB
[student@workstation ~]$ podman ps -a --format="{{.ID}} {{.Names}} {{.Status}}"
24acad6eb003 official-nginx Exited (0) 9 minutes ago
b1b288b3eeec official-nginx-dev Exited (0) About a minute ago
[student@workstation ~]$ podman rm official-nginx-dev
b1b288b3eeec628bc5ea8155e059380c08b6e6dcfac0e2dc063fde9748e73526
[student@workstation ~]$ podman ps -a --format="{{.ID}} {{.Names}} {{.Status}}"
24acad6eb003 official-nginx Exited (0) 9 minutes ago
[student@workstation ~]$ podman rmi do180/mynginx:v1.0-SNAPSHOT
Untagged: localhost/do180/mynginx:v1.0-SNAPSHOT
[student@workstation ~]$ podman images
REPOSITORY TAG IMAGE ID CREATED SIZE
localhost/do180/mynginx v1.0 9f4c6deb9792 2 minutes ago 131 MB
quay.io/redhattraining/nginx 1.17 9beeba249f3e 2 years ago 131 MB
[student@workstation ~]$ podman run -d --name my-nginx -p 8280:80 do180/mynginx:v1.0
66246ea705e0b8cb1f42199ea302f0b8f081c9446b18a4a51195d7c4a2fed8fa
[student@workstation ~]$ curl 127.0.0.1:8280
DO180 Page
[student@workstation ~]$ lab image-review grade
Grading the student's work for the Lab: Managing Images
· Nginx container image is pulled............................. PASS
· Container official-nginx is created......................... PASS
· Container official-nginx is stopped......................... PASS
· Tag do180/mynginx:v1.0-SNAPSHOT is removed.................. PASS
· Tag do180/mynginx:v1.0 is created........................... PASS
· Container my-nginx is created and running................... PASS
· index.html is available with the custom content............. PASS
[student@workstation ~]$ lab image-review finish
Completing the Lab: Managing Images
· Stopping official-nginx-dev container....................... SUCCESS
· Removing official-nginx-dev container....................... SUCCESS
· Stopping official-nginx container........................... SUCCESS
· Removing official-nginx container........................... SUCCESS
· Removing do180/mynginx:v1.0 image........................... SUCCESS
· Removing quay.io/redhattraining/nginx:1.17 image............ SUCCESS
[student@workstation ~]$
Summary
In this chapter, you learned:
.• The Red Hat Container Catalog provides tested and certified images at registry.redhat.io.
• Podman can interact with remote container registries to search, pull, and push container images.
• Image tags are a mechanism to support multiple releases of a container image.
• Podman provides commands to manage container images both in local storage and as
compressed files.
• Use the podman commit command to create an image from a container.
-----------------CH5--Guided Exercise--------.Creating a Basic Apache Container Image-------------
[student@workstation ~]$ lab dockerfile-create start
Setting up workstation for the Guided Exercise: Building a basic Apache Container Image
· Checking podman configuration............................... SUCCESS
· Downloading starter project................................. SUCCESS
· Downloading solution project................................ SUCCESS
Setup successful. Please proceed with the exercise.
[student@workstation ~]$ vim ~/DO180/labs/dockerfile-create/Containerfile
[student@workstation ~]$ cat !$
cat ~/DO180/labs/dockerfile-create/Containerfile
FROM ubi8/ubi:8.5
MAINTAINER Your Name veera
LABEL description="A custom Apache container based on UBI 8"
RUN yum install -y httpd && yum clean all
RUN echo "Hello from Containerfile" > /var/www/html/index.html
EXPOSE 80
CMD ["httpd", "-D", "FOREGROUND"]
[student@workstation ~]$ cd ~/DO180/labs/dockerfile-create
[student@workstation dockerfile-create]$ ls
Containerfile
[student@workstation dockerfile-create]$ podman build --layers=false -t do180/apache .
STEP 1/7: FROM ubi8/ubi:8.5
Resolved "ubi8/ubi" as an alias (/etc/containers/registries.conf.d/001-rhel-shortnames.conf)
Trying to pull registry.access.redhat.com/ubi8/ubi:8.5...
Getting image source signatures
Checking if image destination supports signatures
Copying blob 19b323993c37 done
Copying blob b3c5b1f89131 done
Copying config 202c1768b1 done
Writing manifest to image destination
Storing signatures
STEP 2/7: MAINTAINER Your Name veera
STEP 3/7: LABEL description="A custom Apache container based on UBI 8"
STEP 4/7: RUN yum install -y httpd && yum clean all
Updating Subscription Management repositories.
Unable to read consumer identity
Subscription Manager is operating in container mode.
This system is not registered with an entitlement server. You can use subscription-manager to register.
Red Hat Universal Base Image 8 (RPMs) - BaseOS 446 kB/s | 803 kB 00:01
Red Hat Universal Base Image 8 (RPMs) - AppStre 2.6 MB/s | 3.0 MB 00:01
Red Hat Universal Base Image 8 (RPMs) - CodeRea 17 kB/s | 20 kB 00:01
Last metadata expiration check: 0:00:01 ago on Sun Oct 9 17:40:09 2022.
Dependencies resolved.
==============================================================================================
Package Arch Version Repository Size
==============================================================================================
Installing:
httpd x86_64 2.4.37-47.module+el8.6.0+15654+427eba2e.2 ubi-8-appstream 1.4 M
Installing dependencies:
apr x86_64 1.6.3-12.el8 ubi-8-appstream 130 k
apr-util x86_64 1.6.1-6.el8 ubi-8-appstream 105 k
httpd-filesystem noarch 2.4.37-47.module+el8.6.0+15654+427eba2e.2 ubi-8-appstream 41 k
httpd-tools x86_64 2.4.37-47.module+el8.6.0+15654+427eba2e.2 ubi-8-appstream 108 k
mailcap noarch 2.1.48-3.el8 ubi-8-baseos 39 k
mod_http2 x86_64 1.15.7-5.module+el8.6.0+13996+01710940 ubi-8-appstream 155 k
redhat-logos-httpd noarch 84.5-1.el8 ubi-8-baseos 29 k
Installing weak dependencies:
apr-util-bdb x86_64 1.6.1-6.el8 ubi-8-appstream 25 k
apr-util-openssl x86_64 1.6.1-6.el8 ubi-8-appstream 27 k
Enabling module streams:
httpd 2.4