1. From Docker to
Production
Chris Tankersley
@dragonmantank
SunshinePHP 2017
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3. Subliminal Advertisement
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10. Considerations
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11. How does your app handle storage?
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12. What does your build process look like?
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13. How well does your app handle scaling?
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14. Does it make sense?
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15. The Build Process
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16. Start Small
• Build your application
• Run composer
• Run npm/bower
• Build JS/CSS
• Use the compiled output to build an image with docker build
• Push full image to private registry
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17. docker build
• Additional options to look at
• -f, --file – Specify a different filename for the Dockerfile
• --no-cache – Don’t use a cached layer
• --pull – Always pull a new version of the image
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18. Sample usage
docker build
--no-cache
–f docker/php/phpserver.dockerfile
–t prod_php /opt/builds/20161010
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19. phpserver.dockerfile
FROM php:fpm
RUN docker-php-ext-install pdo pdo_mysql
COPY ./ /var/www
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20. Docker Compose
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21. Very Good for Small Deployments
• Can be used to augment your dev environment
• Works well with Docker Machine
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22. Create a machine
docker-machine create --driver digitalocean
--digital-ocean-access-token [token]
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24. Switch to the remote node
• Run docker-machine env sunshinephp2017
& "C:Program
FilesDockerDockerResourcesbindocker-
machine.exe" env sunshinephp2017 | Invoke-Expression
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25. Set up docker-compose
• Docker Compose allows multiple config files with -f
• Have a base docker-compose.yml for Production
• Add a secondary one for Development
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26. version: '2'
volumes:
mysqldata:
driver: local
services:
nginx:
build:
context: ./
dockerfile: ./nginx.dockerfile
ports:
- 80:80
- 443:443
phpserver:
build:
context: ./
dockerfile: ./phpserver.dockerfile
working_dir: /var/www/public
mysqlserver:
image: mysql
environment:
[redacted]
volumes:
- mysqldata:/var/lib/mysql
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docker-compose.yml

27. version: '2'
volumes:
mysqldata:
driver: local
services:
nginx:
image: nginx
volumes:
- ./output_dev:/var/www/public:ro
- ./app/nginx/default.conf:/etc/nginx/conf.d/default.conf
- ./ssl:/etc/nginx/ssl/
phpserver:
build:
context: ./
dockerfile: ./phpserver.dockerfile
working_dir: /var/www/public
volumes:
- ./app:/var/www/
- ./vendor:/var/www/vendor
mysqlserver:
image: mysql
environment:
[redacted]
volumes:
- mysqldata:/var/lib/mysql
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docker-compose.dev.yml

28. When doing development
docker-compose
–f docker-compose.yml
–f docker-compose.dev.yml
up -d
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29. When doing a deployment
docker-compose up -d
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30. Other Alternative – Variable Substitution
• Docker Compose allows variable substitution inside the file
• Wrap variables in ${}
• image: ${DEPLOY_VERSION}_php
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31. When doing a deployment
docker build –f […] –t 20161010_php /opt/builds/20161010
DEPLOY_VERSION=20161010 docker-compose up -d
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32. Docker Swarm
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33. What is Swarm?
• Docker-supplied clustering
• Define a series of services that can be deployed
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34. Setup
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Manager
Node 2Node 1

35. Register a node as a Manager
docker swarm init --advertise-addr 172.16.0.245
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36. Add nodes
docker swarm join --token [token] 172.16.0.245:2377
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37. docker-compose.yml
version: '3'
services:
phpserver:
image: php:apache
ports:
- 80:80
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38. Deploy the stack
$ docker stack deploy -c docker-compose.yml myapp
Creating network myapp_default
Creating service myapp_phpserver
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39. docker-compose.yml
version: '3'
services:
phpserver:
image: nginx
ports:
- 80:80
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40. Deploy the stack
$ docker stack deploy -c docker-compose.yml myapp
Updating service myapp_phpserver (id: sy8qtegme06g8wqgl0w9707fr)
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41. docker-compose.yml
version: '3'
services:
phpserver:
image: nginx
ports:
- 80:80
deploy:
replicas: 5
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42. docker-compose.yml
version: '3'
services:
phpserver:
image: nginx
ports:
- 80:80
deploy:
replicas: 5
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43. docker stack ps myapp
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE
ERROR PORTS
72mud5othsjf myapp_phpserver.1 nginx:latest node2 Running Running 8 minutes ago
wsf3m32u9vcr _ myapp_phpserver.1 php:apache manager1 Shutdown Shutdown 11 minutes ago
xf3wyh289bec myapp_phpserver.2 nginx:latest node1 Running Preparing 20 seconds ago
fehf1vdx4m0r myapp_phpserver.3 nginx:latest manager1 Running Preparing 20 seconds ago
pwnq65e6w7ew myapp_phpserver.4 nginx:latest manager1 Running Preparing 20 seconds ago
roxtanjughq8 myapp_phpserver.5 nginx:latest node2 Running Running 20 seconds ago
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44. Rancher
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45. Rancher and RancherOS
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46. Manages your Containers
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47. Manages your Hosts
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48. Allows you to monitor containers
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49. Allows you to manage your applications
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50. Allows you to deploy your applications
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51. Allows you to deploy your applications
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52. Supports Docker Compose
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53. Blue-Green Deployments
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Router
App v1 App v2

54. Blue-Green Deployments
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Router
App v3 App v2

55. Blue-Green Deployments
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Router
App v3 App v2

56. Add rancher/server to the master
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docker run -d
--restart=always
-p 8080:8080
–name=rancher
rancher/server

57. Add rancher/agent to nodes
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docker run -d
--privileged
-v /var/run/docker.sock:/var/run/docker.sock
rancher/agent:v0.7.9
http://192.168.99.100:8080/v1/scripts/[hash]

58. All Done!
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59. Deploying with Rancher CLI
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60. What is it?
• Rancher has an API!
• Small executable that interacts with Rancher API
• Kind of like a custom docker-compose
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61. Get an API Key
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62. Get an API Key
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63. Download Rancher CLI
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64. Export Stack Config
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65. Two Config Files
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66. docker-compose.yml
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67. Deploy Script
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ACCESS_KEY="C4F407CE1D8C59EB53BE"
SECRET="daNENHR241Jzm5Z9iw6VsujD9hWfjHWrDzkKmKiA"
RANCHER_URL="http://192.168.99.100:8080"
./rancher-compose --secret-key=${SECRET} --access-key=${ACCESS_KEY} --url=${RANCHER_URL} --
file=docker-compose.yml --rancher-file=rancher-compose.yml -p phptest up --upgrade -d

68. Edit and Deploy
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69. Edit and Deploy
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70. Finish Upgrade
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71. Thank You!
• Software Engineer for InQuest
• Author of “Docker for Developers”
• https://leanpub.com/dockerfordevs
• Co-Host of “Jerks Talk Games”
• http://jerkstalkgames
• http://ctankersley.com
• chris@ctankersley.com
• @dragonmantank
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