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Converting Your Dev Environment to a Docker Stack - php[world]

D
Dana Luther

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.

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Converting Your Dev Environment to a Docker Stack Dana Luther https://joind.in/talk/4321c https://git.io/JeB1S @danaluther
Consolidated Work Stack PHP 7.3 FPM NGINX MySQL
Consolidated Work Stack Friend A PHP 5.6 Apache MySQL PHP 7.3 FPM NGINX MySQL
Consolidated Work Stack Friend A PHP 5.6 Apache MySQL Cause B PHP 7.1 FPM NGINX MySQL PHP 7.3 FPM NGINX MySQL
Licensed Application
Licensed Application PHP 5.6 Apache MySQL 5.3 Client A
Licensed Application PHP 5.6 Apache MySQL 5.3 Client A Client B PHP 7.1 Apache MySQL 5.4
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
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
THERE IS A BETTER WAY
THERE IS A BETTER WAY
VM PHP 7.0 FPM NGINX MySQL
VM PHP 7.0 FPM NGINX MySQL
So, how does that work??? 🤔 ? ? ? ?
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/
SIDEBAR:The Docker Hierarchy
SIDEBAR:The Docker Hierarchy Image Container Service Stack
SIDEBAR:The Docker Hierarchy Image Container Service Stack Node Swarm
> docker stack deploy … Swarm NODE 1 NODE 2 ETC. PHP 1 MySQL NGINX PHP 2
SIDEBAR:Docker Command Syntax docker (object) (action) (args)
SIDEBAR:Docker Command Syntax docker (object) (action) (args) > docker container ls
SIDEBAR:Docker Command Syntax docker (object) (action) (args) > docker container ls > docker image ls
SIDEBAR:Docker Command Syntax docker (object) (action) (args) > docker container ls > docker image ls > docker service ls
SIDEBAR:Docker Command Syntax docker (object) (action) (args) > docker container ls > docker image ls > docker service ls > docker volume ls
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
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
The swarm … Node Manager Node Worker Node Worker Node Worker
Node Manager A SWARM OF ONE > docker swarm init
Node Manager A SWARM OF ONE > docker swarm init
⚠ Common “Gotcha” Swarm init — ONE TIME ONLY * THE SWARM PERSISTS *
⚠ Common “Gotcha” Swarm init — ONE TIME ONLY * THE SWARM PERSISTS * > docker swarm leave
⚠ Common “Gotcha” Swarm init — ONE TIME ONLY * THE SWARM PERSISTS * > docker swarm leave > docker swarm leave —force
POPQUIZ!
POPQUIZ! A. What’s the difference between a container and a service?
POPQUIZ! A. What’s the difference between a container and a service? B. What’s the difference between a service and a stack?
Commonly Useful Images: mysql php nginx httpd node redis wordpress composer memcached alpine postgres busybox https://store.docker.com
Commonly Useful Images: mysql php nginx httpd node redis wordpress composer memcached alpine postgres busybox phpmyadmin/phpmyadmin https://store.docker.com
Commonly Useful Images: mysql php nginx httpd node redis wordpress composer memcached alpine postgres busybox phpmyadmin/phpmyadmin https://store.docker.com BONUS POP QUIZ!
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?
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?
Images for Automated Testing selenium/standalone-chrome-debug selenium/standalone-firefox-debug:2.53.0 acceptance.suite.yml docker-compose.yml
Images for Automated Testing selenium/standalone-chrome-debug selenium/standalone-firefox-debug:2.53.0 acceptance.suite.yml docker-compose.yml
SIDEBAR:Legacy images, containers, volumes > docker image prune > docker container prune > docker (whatever) prune
SIDEBAR:Legacy images, containers, volumes > docker image prune > docker container prune > docker (whatever) prune > docker system prune
SIDEBAR:Legacy images, containers, volumes > docker image prune > docker container prune > docker (whatever) prune > docker system prune
SIDEBAR:Legacy images, containers, volumes > docker image prune > docker container prune > docker (whatever) prune > docker system prune
SIDEBAR:Legacy images, containers, volumes > docker image prune > docker container prune > docker (whatever) prune > docker system prune
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
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
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
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
SIDEBAR:LABELS — use them everywhere! 🤔 ? ? ? ? The -f toggle -f name=phpworld_php -f label=com.envisage.desc=php
SIDEBAR:LABELS — use them everywhere! 🤔 ? ? ? ? The -f toggle -f name=phpworld_php -f label=com.envisage.desc=php
SIDEBAR:LABELS — use them everywhere! 🤔 ? ? ? ? The -f toggle -f name=phpworld_php -f label=com.envisage.desc=php
SIDEBAR:LABELS — use them everywhere! 🤔 ? ? ? ? The -f toggle -f name=phpworld_php -f label=com.envisage.desc=php
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
Volume Example for php php: volumes: - ./public_html:/var/ www/html Local path relative to the file Path location within the container
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”
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”
⚠ Common “Gotcha” * BEWARE WINDOWS PATHS * C:DockerDriveSite /C/DockerDrives/Site /host_mnt/c/DockerDrives/Site //c/DockerDrives/Site Windows LCOW Volume Path
Converting Your Dev Environment to a Docker Stack - php[world]
POPQUIZ!
POPQUIZ! A. What is the command to initialize a swarm?
POPQUIZ! A. What is the command to initialize a swarm? B. What is the command to deploy a docker stack?
> docker stack deploy -c docker-compose.yml phpworld
> docker stack deploy -c docker-compose.yml phpworld
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ?
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ? > docker service ls
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ? > docker service ls
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ? > docker service ls
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ? > docker service ls
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ? > docker service ls > docker stack ps phpworld
> docker stack deploy -c docker-compose.yml phpworld 🤔 ? ? ? ? > docker service ls > docker stack ps phpworld
> docker service logs phpworld_db
> docker service logs phpworld_db
> docker service logs phpworld_db
> docker service logs phpworld_db
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
Want to see it in action? > docker service logs phpworld_nginx -f
Want to see it in action? > docker service logs phpworld_nginx -f
⚠ Common “Gotcha” localhost:3306 db:3306
⚠ Common “Gotcha” localhost:3306 db:3306 upstream fastcgi { server 127.0.0.1:9000 } upstream fastcgi { server php:9000 }
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/*
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
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
Config: mysite
Config: mysite > docker config inspect phpworld_mysite
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
Secret: db_pwd
Secret: db_pwd > docker secret inspect phpworld_db_pwd
⚠ Common “Gotcha” > docker config ls
⚠ Common “Gotcha” > docker config ls
⚠ Common “Gotcha” > docker config create mysite.2 ./mysite.conf > docker config ls
⚠ Common “Gotcha” > docker config create mysite.2 ./mysite.conf > docker config ls
⚠ Common “Gotcha” > docker config create mysite.2 ./mysite.conf > docker config ls
⚠ Common “Gotcha” > docker config create mysite.2 ./mysite.conf > docker config ls
⚠ 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
⚠ 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
Converting Your Dev Environment to a Docker Stack - php[world]
> docker service rollback phpworld_nginx
> docker service rollback phpworld_nginx
Done with the project for now? > docker stack rm phpworld
Done with the project for now? > docker stack rm phpworld
Done with the project for now? > docker stack rm phpworld
Done with the project for now? > docker stack rm phpworld
POPQUIZ!
POPQUIZ! A. How do you check the replication status of services?
POPQUIZ! A. How do you check the replication status of services? B. How do you check for error messages on the stack?
POPQUIZ! A. How do you check the replication status of services? B. How do you check for error messages on the stack? BONUS POINT
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?
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?
Same project … multiple production targets? docker-compose.yml docker-compose-clientA.yml docker-compose-clientB.yml
Same project … multiple production targets? docker-compose.yml docker-compose-clientA.yml docker-compose-clientB.yml
Same project … multiple production targets? docker-compose.yml docker-compose-clientA.yml docker-compose-clientB.yml
Same project … multiple production targets? docker-compose.yml docker-compose-clientA.yml docker-compose-clientB.yml
POPQUIZ!
POPQUIZ! A. How do you filter a list of docker objects (services, containers, images, etc)
SIDEBAR:The $( ) magic with -q -l -f -q Quiet (ID only) -l Last Updated Only (1 result) -f Filter (you remember this)
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
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
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
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
Don’t love the command prompt?
🤔 ? ? ?? Don’t love the command prompt?
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
POPQUIZ!
POPQUIZ!A. What is the command to deploy a stack?
POPQUIZ!A. What is the command to deploy a stack?
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
SIDEBAR:Multi-stage builds
Converting Your Dev Environment to a Docker Stack - php[world]
> 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 .
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
POPQUIZ!
POPQUIZ!A. Command line equivalent?
POPQUIZ!A. Command line equivalent? > docker service ls -f name=phpworld
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
POPQUIZ!
POPQUIZ!A. Command line equivalent?
POPQUIZ!A. Command line equivalent? > docker container ls
Converting Your Dev Environment to a Docker Stack - php[world]
> docker container exec -it $(docker ps -lq -f name=phpworld_php) bash
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
Converting Your Dev Environment to a Docker Stack - php[world]
> docker service update --config-add source=mysite.2,target=/etc/nginx/conf.d/default.conf phpworld_nginx Command line equivalent?
Converting Your Dev Environment to a Docker Stack - php[world]
> docker node ls
Converting Your Dev Environment to a Docker Stack - php[world]
Questions?? https://joind.in/talk/4321c 🤔 ? ? ? ? @danaluther https://www.linkedin.com/in/danaluther dluther@envisageinternational.com https://git.io/JeB1S
Converting Your Dev Environment to a Docker Stack - php[world]
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Converting Your Dev Environment to a Docker Stack - php[world]

  • 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
  • 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
  • 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/
  • 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
  • 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
  • 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?
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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?
  • 129. POPQUIZ!A. What is the command to deploy a stack?
  • 130. POPQUIZ!A. What is the command to deploy a stack?
  • 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 .
  • 142. POPQUIZ!A. Command line equivalent?
  • 143. POPQUIZ!A. Command line equivalent? > docker service ls -f name=phpworld
  • 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?