Heard a lot about docker but not sure where to start? Frustrated maintaining development VMs? In this presentation we will go over the simplest ways to convert your development environment over to a docker stack, including support for full acceptance testing with Selenium. We’ll then go over how to modify the stack to mimic your production/pre-production environment(s) as closely as possible, and demystify working with the containers in the stack.

1. Converting Your Dev Environment
to a Docker Stack
Dana Luther
https://joind.in/talk/4321c
https://git.io/JeB1S
@danaluther

2. Consolidated Work Stack
PHP 7.3 FPM
NGINX
MySQL

3. Consolidated Work Stack
Friend A
PHP 5.6
Apache
MySQL
PHP 7.3 FPM
NGINX
MySQL

4. Consolidated Work Stack
Friend A
PHP 5.6
Apache
MySQL
Cause B
PHP 7.1 FPM
NGINX
MySQL
PHP 7.3 FPM
NGINX
MySQL

5. Licensed
Application

6. Licensed
Application
PHP 5.6
Apache
MySQL 5.3
Client A

7. Licensed
Application
PHP 5.6
Apache
MySQL 5.3
Client A
Client B
PHP 7.1
Apache
MySQL 5.4

8. Licensed
Application
Client C
PHP 5.6 FPM
NGINX
MySQL 5.2
PHP 5.6
Apache
MySQL 5.3
Client A
Client B
PHP 7.1
Apache
MySQL 5.4

9. Licensed
Application
Client D
PHP 7.1 FPM
NGINX
MySQL 5.3
Client C
PHP 5.6 FPM
NGINX
MySQL 5.2
PHP 5.6
Apache
MySQL 5.3
Client A
Client B
PHP 7.1
Apache
MySQL 5.4

10. THERE IS A
BETTER
WAY

11. THERE IS A
BETTER
WAY

12. VM
PHP 7.0 FPM
NGINX
MySQL

13. VM
PHP 7.0 FPM
NGINX
MySQL

14. So, how does that work???
🤔
?
? ?
?

15. docker-compose.yml
Docker Compose Version
Services in the Stack
Configurations,
Secrets,
Storage Volumes,
etc.
Version: “3.7”
services:
nginx:
image: nginx
command: [
'sh',
'-c',
"exec nginx -g 'daemon off;'"
]
…
php:
image: php:7.3-fpm
…
network:
web_frontend
config:
nginx.conf:
file: ./nginx/nginx.conf
volumes:
…https://docs.docker.com/compose/compose-file/

16. SIDEBAR:The Docker Hierarchy

17. SIDEBAR:The Docker Hierarchy
Image Container Service Stack

18. SIDEBAR:The Docker Hierarchy
Image Container Service Stack
Node Swarm

19. > docker stack deploy …
Swarm
NODE 1
NODE 2
ETC.
PHP 1 MySQL
NGINX PHP 2

20. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)

21. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)
> docker container ls

22. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)
> docker container ls
> docker image ls

23. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)
> docker container ls
> docker image ls
> docker service ls

24. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)
> docker container ls
> docker image ls
> docker service ls
> docker volume ls

25. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)
> docker container ls
> docker image ls
> docker service ls
> docker volume ls
image
container
stack
service
config
network
node
plugin
swarm
Objects

26. SIDEBAR:Docker Command Syntax
docker (object) (action) (args)
> docker container ls
> docker image ls
> docker service ls
> docker volume ls
image
container
stack
service
config
network
node
plugin
swarm
Objects
ls
ps
prune
inspect
create
remove / rm
Common
Actions

27. The swarm …
Node
Manager
Node
Worker
Node
Worker
Node
Worker

28. Node
Manager
A SWARM OF ONE
> docker swarm init

29. Node
Manager
A SWARM OF ONE
> docker swarm init

30. ⚠ Common “Gotcha”
Swarm init — ONE TIME ONLY
* THE SWARM PERSISTS *

31. ⚠ Common “Gotcha”
Swarm init — ONE TIME ONLY
* THE SWARM PERSISTS *
> docker swarm leave

32. ⚠ Common “Gotcha”
Swarm init — ONE TIME ONLY
* THE SWARM PERSISTS *
> docker swarm leave
> docker swarm leave —force

33. POPQUIZ!

34. POPQUIZ! A. What’s the difference
between a container and a
service?

35. POPQUIZ! A. What’s the difference
between a container and a
service?
B. What’s the difference
between a service and a
stack?

36. Commonly Useful Images:
mysql
php
nginx
httpd
node
redis
wordpress
composer
memcached
alpine
postgres
busybox
https://store.docker.com

37. Commonly Useful Images:
mysql
php
nginx
httpd
node
redis
wordpress
composer
memcached
alpine
postgres
busybox
phpmyadmin/phpmyadmin
https://store.docker.com

38. Commonly Useful Images:
mysql
php
nginx
httpd
node
redis
wordpress
composer
memcached
alpine
postgres
busybox
phpmyadmin/phpmyadmin
https://store.docker.com
BONUS POP QUIZ!

39. Commonly Useful Images:
mysql
php
nginx
httpd
node
redis
wordpress
composer
memcached
alpine
postgres
busybox
phpmyadmin/phpmyadmin
https://store.docker.com
BONUS POP QUIZ!
How do you pull an image manually?

40. Commonly Useful Images:
mysql
php
nginx
httpd
node
redis
wordpress
composer
memcached
alpine
postgres
busybox
phpmyadmin/phpmyadmin
https://store.docker.com
> docker image pull mysql:latest
BONUS POP QUIZ!
How do you pull an image manually?

41. Images for Automated Testing
selenium/standalone-chrome-debug
selenium/standalone-firefox-debug:2.53.0
acceptance.suite.yml
docker-compose.yml

42. Images for Automated Testing
selenium/standalone-chrome-debug
selenium/standalone-firefox-debug:2.53.0
acceptance.suite.yml
docker-compose.yml

43. SIDEBAR:Legacy images, containers, volumes
> docker image prune
> docker container prune
> docker (whatever) prune

44. SIDEBAR:Legacy images, containers, volumes
> docker image prune
> docker container prune
> docker (whatever) prune
> docker system prune

45. SIDEBAR:Legacy images, containers, volumes
> docker image prune
> docker container prune
> docker (whatever) prune
> docker system prune

46. SIDEBAR:Legacy images, containers, volumes
> docker image prune
> docker container prune
> docker (whatever) prune
> docker system prune

47. SIDEBAR:Legacy images, containers, volumes
> docker image prune
> docker container prune
> docker (whatever) prune
> docker system prune

48. version: “3.7”
services:
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
db:
image: mysql
ports:
- “3306:3306”
networks:
- web
secrets:
- db_pwd
deploy:
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints: [ node.role == manager ]
environment:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_pwd
php:
image: php:7.3-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.3-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
PHP 7.3 FPM
NGINX
MySQL

49. php:
image: php:7.3-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.3-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
version: “3.7”
services:
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
db:
image: mysql
ports:
- “3306:3306”
networks:
- web
secrets:
- db_pwd
deploy:
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints: [ node.role == manager ]
environment:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_pwd
PHP 7.0 FPM
NGINX
MySQL

50. php:
image: php:7.3-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.3-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
PHP 7.0 FPM
NGINX
MySQL

51. php:
image: php:7.3-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.3-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
PHP 7.0 FPM
NGINX
MySQL

52. SIDEBAR:LABELS — use them everywhere!
🤔
?
? ?
? The -f toggle
-f name=phpworld_php
-f label=com.envisage.desc=php

53. SIDEBAR:LABELS — use them everywhere!
🤔
?
? ?
? The -f toggle
-f name=phpworld_php
-f label=com.envisage.desc=php

54. SIDEBAR:LABELS — use them everywhere!
🤔
?
? ?
? The -f toggle
-f name=phpworld_php
-f label=com.envisage.desc=php

55. SIDEBAR:LABELS — use them everywhere!
🤔
?
? ?
? The -f toggle
-f name=phpworld_php
-f label=com.envisage.desc=php

56. version: “3.7”
services:
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
db:
image: mysql
ports:
- “3306:3306”
networks:
- web
secrets:
- db_pwd
deploy:
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints: [ node.role == manager ]
environment:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_pwd
php:
image: php:7.0-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.0-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
PHP 7.0 FPM
NGINX
MySQL

57. Volume Example for php
php:
volumes:
- ./public_html:/var/ www/html
Local path relative
to the file
Path location within
the container

58. Using named storage volumes
Volumes:
pub_html:
external: true
…
php:
volumes:
- pub_html:/var/ www/html
Volume name
Path location
within the container
> docker volume create pub_html
—opt type=none
—opt o=bind
—opt device=/Volumes/E/site/
—label “com.envisage.desc=Site”

59. Using named storage volumes
> docker volume create pub_html
—opt type=none
—opt o=bind
—opt device=/Volumes/E/site/
—label “com.envisage.desc=Site”

60. ⚠ Common “Gotcha”
* BEWARE WINDOWS PATHS *
C:DockerDriveSite
/C/DockerDrives/Site
/host_mnt/c/DockerDrives/Site
//c/DockerDrives/Site
Windows
LCOW
Volume
Path

62. POPQUIZ!

63. POPQUIZ! A. What is the command to
initialize a swarm?

64. POPQUIZ! A. What is the command to
initialize a swarm?
B. What is the command to
deploy a docker stack?

65. > docker stack deploy -c docker-compose.yml phpworld

66. > docker stack deploy -c docker-compose.yml phpworld

67. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?

68. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?
> docker service ls

69. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?
> docker service ls

70. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?
> docker service ls

71. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?
> docker service ls

72. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?
> docker service ls
> docker stack ps phpworld

73. > docker stack deploy -c docker-compose.yml phpworld
🤔
?
? ?
?
> docker service ls
> docker stack ps phpworld

74. > docker service logs phpworld_db

75. > docker service logs phpworld_db

76. > docker service logs phpworld_db

77. > docker service logs phpworld_db

80. Want to see it in action?
> docker service logs phpworld_nginx -f

81. Want to see it in action?
> docker service logs phpworld_nginx -f

82. ⚠ Common “Gotcha”
localhost:3306 db:3306

83. ⚠ Common “Gotcha”
localhost:3306 db:3306
upstream fastcgi {
server 127.0.0.1:9000
}
upstream fastcgi {
server php:9000
}

84. Ok, great! But … ¯_(ツ)_/¯
My production server
has lots of configurations
that have been customized…
php/conf.d/*
my.cnf
nginx.conf
nginx/conf.d/*

85. version: “3.7”
services:
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
db:
image: mysql
ports:
- “3306:3306”
networks:
- web
secrets:
- db_pwd
deploy:
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints: [ node.role == manager ]
environment:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_pwd
php:
image: php:7.3-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.3-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
PHP 7.0 FPM
NGINX
MySQL

86. version: “3.7”
services:
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
db:
image: mysql
ports:
- “3306:3306”
networks:
- web
secrets:
- db_pwd
deploy:
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints: [ node.role == manager ]
environment:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_pwd
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.d
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.de
command: [‘bin/sh’, ‘-c’, “sleep
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
PHP 7.0 FPM
NGINX
MySQL

87. Config: mysite

88. Config: mysite
> docker config inspect phpworld_mysite

89. version: “3.4”
services:
nginx:
image: nginx
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “Nginx Service”
volumes:
- ./public_html:/var/ www/html
configs:
- source: mysite
target: /etc/nginx/conf.d/mysite.conf
ports:
- “80:80”
- “443:443”
depends_on:
- php
- db
labels:
com.envisageinternational.desc: “Nginx Container”
command: [‘sh’,'-c',"exec nginx -g 'daemon off;’”]
db:
image: mysql
ports:
- “3306:3306”
networks:
- web
secrets:
- db_pwd
deploy:
replicas: 1
restart_policy:
condition: on-failure
placement:
constraints: [ node.role == manager ]
environment:
- MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db_pwd
php:
image: php:7.3-fpm
networks:
- web
depends_on:
- db
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-FPM Service”
ports:
- “9000:9000”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-FPM Container”
php-cli:
image: php:7.3-cli
networks:
- web
deploy:
replicas: 1
restart_policy:
condition: on-failure
labels:
com.envisageinternational.desc: “PHP-CLI Service”
volumes:
- ./public_html:/var/ www/html
labels:
com.envisageinternational.desc: “PHP-CLI Container”
command: [‘bin/sh’, ‘-c’, “sleep infinity”]
networks:
web:
configs:
mysite:
file: ./mysite.conf
secrets:
db_pwd:
file: ./root_db_password.txt
PHP 7.0 FPM
NGINX
MySQL

90. Secret: db_pwd

91. Secret: db_pwd
> docker secret inspect phpworld_db_pwd

92. ⚠ Common “Gotcha”
> docker config ls

93. ⚠ Common “Gotcha”
> docker config ls

94. ⚠ Common “Gotcha”
> docker config create mysite.2 ./mysite.conf
> docker config ls

95. ⚠ Common “Gotcha”
> docker config create mysite.2 ./mysite.conf
> docker config ls

96. ⚠ Common “Gotcha”
> docker config create mysite.2 ./mysite.conf
> docker config ls

97. ⚠ Common “Gotcha”
> docker config create mysite.2 ./mysite.conf
> docker config ls

98. ⚠ Common “Gotcha”
> docker config create mysite.2 ./mysite.conf
> docker config ls
> docker service update --config-rm phpworld_mysite
--config-add source=mysite.2,target=/etc/nginx/conf.d/default.conf
phpworld_nginx

99. ⚠ Common “Gotcha”
> docker config create mysite.2 ./mysite.conf
> docker config ls
> docker service update --config-rm phpworld_mysite
--config-add source=mysite.2,target=/etc/nginx/conf.d/default.conf
phpworld_nginx

101. > docker service rollback phpworld_nginx

102. > docker service rollback phpworld_nginx

103. Done with the project for now?
> docker stack rm phpworld

104. Done with the project for now?
> docker stack rm phpworld

105. Done with the project for now?
> docker stack rm phpworld

106. Done with the project for now?
> docker stack rm phpworld

107. POPQUIZ!

108. POPQUIZ! A. How do you check the
replication status of services?

109. POPQUIZ! A. How do you check the
replication status of services?
B. How do you check for error
messages on the stack?

110. POPQUIZ! A. How do you check the
replication status of services?
B. How do you check for error
messages on the stack?
BONUS POINT

111. POPQUIZ! A. How do you check the
replication status of services?
B. How do you check for error
messages on the stack?
BONUS POINT
How do you avoid truncating the error message?

112. POPQUIZ! A. How do you check the
replication status of services?
B. How do you check for error
messages on the stack?
> docker stack ps vm --no-trunc
BONUS POINT
How do you avoid truncating the error message?

113. Same project … multiple production
targets?
docker-compose.yml
docker-compose-clientA.yml
docker-compose-clientB.yml

114. Same project … multiple production
targets?
docker-compose.yml
docker-compose-clientA.yml
docker-compose-clientB.yml

115. Same project … multiple production
targets?
docker-compose.yml
docker-compose-clientA.yml
docker-compose-clientB.yml

116. Same project … multiple production
targets?
docker-compose.yml
docker-compose-clientA.yml
docker-compose-clientB.yml

117. POPQUIZ!

118. POPQUIZ! A. How do you filter a list of
docker objects (services,
containers, images, etc)

119. SIDEBAR:The $( ) magic with -q -l -f
-q Quiet (ID only)
-l Last Updated Only (1 result)
-f Filter (you remember this)

120. SIDEBAR:The $( ) magic with -q -l -f
-q Quiet (ID only)
-l Last Updated Only (1 result)
-f Filter (you remember this)
> docker container ls -q -l

121. SIDEBAR:The $( ) magic with -q -l -f
-q Quiet (ID only)
-l Last Updated Only (1 result)
-f Filter (you remember this)
> docker container ls -q -l

122. SIDEBAR:The $( ) magic with -q -l -f
-q Quiet (ID only)
-l Last Updated Only (1 result)
-f Filter (you remember this)
> docker container ls -q -l
> docker container exec -it $(docker ps -lq -f name=phpworld_nginx) bash

123. SIDEBAR:The $( ) magic with -q -l -f
-q Quiet (ID only)
-l Last Updated Only (1 result)
-f Filter (you remember this)
> docker container ls -q -l
> docker container exec -it $(docker ps -lq -f name=phpworld_nginx) bash

124. Don’t love the command prompt?

125. 🤔
?
? ??
Don’t love the command prompt?

128. POPQUIZ!

129. POPQUIZ!A. What is the command to
deploy a stack?

130. POPQUIZ!A. What is the command to
deploy a stack?

134. SIDEBAR:Multi-stage builds

136. > docker image build -f images/Dockerfile-bundled
--target=phpworld_php
-t dhluther/php:phpworld-demo .
> docker image build -f images/Dockerfile-bundled
--target=phpworld_nginx
-t dhluther/nginx:phpworld-demo .

141. POPQUIZ!

142. POPQUIZ!A. Command line equivalent?

143. POPQUIZ!A. Command line equivalent?
> docker service ls -f name=phpworld

146. POPQUIZ!

147. POPQUIZ!A. Command line equivalent?

148. POPQUIZ!A. Command line equivalent?
> docker container ls

150. > docker container exec -it
$(docker ps -lq -f name=phpworld_php)
bash

154. > docker service update
--config-add source=mysite.2,target=/etc/nginx/conf.d/default.conf
phpworld_nginx
Command line equivalent?

156. > docker node ls

158. Questions??
https://joind.in/talk/4321c
🤔
?
? ?
?
@danaluther
https://www.linkedin.com/in/danaluther
dluther@envisageinternational.com
https://git.io/JeB1S