1. Developing and Deploying
PHP with Docker
Midwest PHP 2015

2. Patrick Mizer
SpareFoot - Austin, TX
ZCE: PHP4, PHP5, ZF
We use Docker at SpareFoot:
● Containers for PHP services in dev
● CI server builds and deploys containers
● Containers in production for Solr Search and Node.js
apps

3. First, what I am NOT going to cover

4. First, what I am NOT going to cover
Docker internals
○ LXC Containers
■ Kernel namespacing (pid, mnt, net, user, ipc)
■ Control groups (blkio, cpu, devices)

5. First, what I am NOT going to cover
The Docker - CoreOS Debate
○ Rocket vs Docker
○ Whether everything running through one daemon is
a security risk
○ Whether Docker is a platform or a composable
building block

6. What I am going to cover

7. What I am going to cover
● What is Docker?
● Why you should care about Docker
● How Docker works
● Building a Docker container for a PHP
application
● Docker tools
○ Compose
○ Docker-Machine
○ Swarm
● Live demos (time permitting)

8. What is Docker?

9. What is Docker?
Docker is an open platform for developers and
sysadmins to build, ship, and run distributed
applications.
Docker enables apps to be quickly assembled
from components and eliminates the friction
between development, QA, and production
environments.

10. Oh, so it’s a Virtual Machine?

11. Oh, so it’s a Virtual Machine?

12. Physical Server
Host OS
Libs
App
Traditional server model

13. Physical Server
Host OS
Libs
App
Physical Server
Host OS
Hypervisor
Guest OS
Libs
App
Guest OS
Libs
App
Traditional server model Virtual machine model

14. Physical Server
Host OS
Hypervisor
Guest OS
Libs
App
Guest OS
Libs
App
Virtual machine model

15. Physical Server
Host OS
Hypervisor
Guest OS
Libs
App
Guest OS
Libs
App
Physical Server
Host OS
Docker Engine
Libs
App
Libs
App
Virtual machine model Docker model

16. Physical Server
Host OS
Docker Engine
Libs
App
Libs
App Docker Containers
● Smaller than VMs (no O/S)
● Isolation of VMs without overhead
The Container

17. The Container Metaphor

18. The Container Metaphor
Things to
ship
Platforms
for shipped
goods

19. The Container Metaphor
Things to
ship
Platforms
for shipped
goods

20. The Container Metaphor

21. The Container Metaphor

22. The Container Metaphor
Technologies Platforms

23. The Container Metaphor
Platforms

24. The Container Metaphor

25. The Container Metaphor

26. Got it?

27. Got it?

28. You really should!

29. Why should you care about Docker?

30. Why you should care
● Portable runtime environment for your code
○ Stable dev environment
○ Build once, run anywhere*

31. Why you should care
● Portable runtime environment for your code
○ Stable dev environment
○ Build once, run anywhere*
● Immutable build artifacts
○ Avoid dependency hell
○ Avoid “drift”

32. Why you should care
● Portable runtime environment for your code
○ Stable dev environment
○ Build once, run anywhere*
■ New technologies!
● Immutable build artifacts
○ Avoid dependency hell
○ Avoid “drift”
● Clear separation of concerns
○ Dev - Code, Dependencies, Libs
○ DevOps - Provisioning, Logging, Network

33. Stable Dev Environment
Virtual Machine
% vagrant up

34. Stable Dev Environment
Virtual Machine
% vagrant up

35. But how do you model this?
Presentation
Service
Data
[ JSON / REST API ]

36. Stable Dev Environment
Virtual Machine
% vagrant up

37. Stable Dev Environment
% vagrant up

38. Stable Dev Environment
PHP App 1
Redis Cache
Solr Search
MySQL DB
Virtual Machine
Containers
% vagrant up
PHP App 2

39. Separation of concerns

40. Developers

41. Developers
Inside the container:
● Code
● Libraries
● Package Manager
● Data

42. DevOps

43. DevOps
Outside the container:
● Logging
● Monitoring
● Network Configuration

44. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04
Production
Development
Local

45. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04

46. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04

47. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04

48. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04

49. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04

50. Immutable Build Artifacts
2.4.10
5.6.5
5.6.23
5.5.21
5.6.23
2.4.12
5.5.21
5.6.3
2.4.09
14.10
14.04

51. Immutable Build Artifacts
14.10
14.04
Production
Development
Local 2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0

52. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0

53. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0

54. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0
2.4.12
5.6.7

55. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0
2.4.12
5.6.7

56. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0
2.4.12
5.6.7
2.4.12
5.6.7

57. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0
2.4.12
5.6.7
2.4.12
5.6.7

58. Immutable Build Artifacts
14.10
14.04
2.4.12
5.6.7
2.4.10
5.5.0
2.4.10
5.5.0
2.4.12
5.6.7
2.4.12
5.6.7
OpsDev

59. Let’s build something...

60. Docker Concepts
Docker Daemon
Container 1
Container 2
Container 3
Container N
Docker CLI
docker ps
docker pull
docker run
docker kill
...
Docker Host Docker Registry
Image 1
Image 2
Image 3
Image N

61. Building our first container
% mkdir first
% cd first
% touch index.php
% touch Dockerfile

62. index.php
<?php
echo “Hello world”;
?>

63. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]

64. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]

65. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]

66. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]

67. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]

68. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]
The Docker way:
1 process per container

69. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]
I’m Lazy:
/usr/sbin/apache2ctl -D FOREGROUND

70. Build our image
% docker build -t mizer/helloworld .

71. Build our image
Docker Daemon
Docker CLI
docker build -t
mizer/helloworld
.
Docker Host Docker Registry
mizer/helloworld
ubuntu

72. The Dockerfile
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]
step 0
step 1
step 2
step 4
step 5
step 3
Each step is cached :)

73. Run our first container
% sudo docker run -p 8080:8080
--name hello_1 -d mizer/helloworld

74. Run our first container
Docker Daemon
Docker CLI
docker run -p 8080:8080
--name hello_1 -d
mizer/helloworld
Docker Host Docker Registry
mizer/helloworld
hello_1

75. Check our running containers
% docker ps

76. Check our running containers
% docker ps
CONTAINER ID IMAGE COMMAND PORTS NAMES
5f1b82bb90b8 mizer/helloworld:latest "php -S 0.0.0.0:8080 8080->8080/tcp hello_1

77. Create another
% docker run -p 8181:8080
--name hello_2 -d mizer/helloworld

78. Docker Concepts
Docker Daemon
Docker CLI
docker run -p 8181:8080
--name hello_2 -d
mizer/helloworld
Docker Host Docker Registry
mizer/helloworld
hello_1
hello_2

79. Check our running containers
% docker ps
CONTAINER ID IMAGE COMMAND PORTS NAMES
5f1b82bb90b8 mizer/helloworld:latest "php -S 0.0.0.0:8080 8080->8080/tcp hello_1
3d1b8ccb80c7 mizer/helloworld:latest "php -S 0.0.0.0:8080 8181->8080/tcp hello_2

80. Let’s remove both containers
% sudo docker rm -f hello_1 hello_2

81. Let’s remove both containers
Docker Daemon
Docker CLI
docker rm -f hello_1
hello_2
Docker Host Docker Registry
mizer/helloworld

82. … and the image
% sudo docker rmi -f mizer/helloworld

83. … and the image
Docker Daemon
Docker CLI
docker run -p 8080:8080
--name hello_2 -d
mizer/hello
Docker Host Docker Registry

84. Creating a base image
FROM ubuntu:trusty
RUN apt-get update &&
apt-get -y install php5-cli
% docker build -t mizer/php

85. Creating a base image
Docker Daemon
Docker CLI
docker build -t
mizer/php .
Docker Host Docker Registry
mizer/php

86. Using our base image
FROM mizer/php:latest
ADD . /app
WORKDIR /app
EXPOSE 8080
CMD ["php", "-S", "0.0.0.0:8080"]
% sudo docker build -t
mizer/helloworld .

87. Creating a base image
Docker Daemon
Docker CLI
docker build -t
mizer/php .
Docker Host Docker Registry
mizer/php
mizer/helloworld

88. Create the container
% sudo docker run -p 8080:8080
--name hello_1 -d mizer/helloworld

89. Create the container
Docker Daemon
Docker CLI
docker run -p 8080:8080
--name hello_1 -d
mizer/hello
Docker Host Docker Registry
mizer/php
mizer/hello
hello_1

90. Community images
% docker search php

91. Community images
% docker search php
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
php While designed for web development, the PH... 148 [OK]
tutum/apache-php Apache+PHP base image - listens in port 80... 59 [OK]
maxexcloo/nginx-php Docker framework container with Nginx and ... 30 [OK]
eboraas/apache-php PHP5 on Apache (with SSL support), built o... 17 [OK]
richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable ... 10 [OK]
php-zendserver Zend Server - the integrated PHP applicati... 10 [OK]
clue/phpvirtualbox phpVirtualBox is a modern web interface de... 9 [OK]
jdeathe/centos-ssh-apache-php CentOS-6 6.5 x86_64 / Apache / PHP / PHP m... 8 [OK]
jprjr/php-fpm Arch Linux-based image with PHP-FPM instal... 8 [OK]
darh/php-essentials Provides a container full of php-cli tools... 7 [OK]
million12/nginx-php Nginx + PHP-FPM, CentOS-7 based. 5 [OK]
reinblau/php-apache2 Apache2 Server for PHP Projects 4 [OK]
eriksencosta/php-dev Docker image with latest supported PHP ver... 4 [OK]
alreece45/phusion-nginx-php nginx and php-fpm with configurable docume... 3 [OK]
million12/php-app-ssh million12/php-app, extended with SSHD and ... 2 [OK]
simpledrupalcloud/php 1 [OK]
yoshz/apache-php-dev A docker image with Apache, PHP 5.5, drush... 1 [OK]
azukiapp/php-apache Base docker image to run PHP applications ... 1 [OK]

92. A modern architecture

93. A modern architecture
Presentation
Service
Data
[ JSON / REST API ]

94. A modern architecture
Docker Daemon
Docker CLI
Docker Host Docker Registry
mizer/php
mizer/web
web_1
service_1
data_1
mizer/service
mizer/data
mizer/mysql
mizer/data

95. Got it?


96. Docker Orchestration
● Compose
● Machine
● Swarm

97. South Africa

98. Fig Docker Compose
Compose is a tool for defining and running
complex applications with Docker. With
Compose, you define a multi-container
application in a single file, then spin your
application up in a single command which does
everything that needs to be done to get it
running.

99. docker-compose.yml
webapp1:
build: webapp/.
command: php -S 0.0.0.0:8000 -t /code
ports:
- "8000:8000"
environment:
- DSN=mysql:host=mysql;dbname=test
- USERNAME=test
- PASSWORD=foo
links:
- mysql

100. Docker Compose
% docker-compose up

101. Docker-compose
Docker Daemon
Docker CLI
Docker Host Docker Registry
mizer/php
mizer/web
web_1
service_1
data_1
mizer/service
mizer/data
mizer/mysql
mizer/data
docker-compose.yml
% docker-compose up

102. Docker Machine
Docker Machine takes you from zero-to-Docker in
seconds with a single command.
Before Docker Machine, a developer would need to log in
to the host and follow installation and configuration
instructions specifically for that host and its OS. With
Docker Machine, whether provisioning the Docker daemon
on a new laptop, on virtual machines in the data center, or
on a public cloud instance, the same, single command.

103. Swarm
Docker CLI
Docker Daemon
Container 1
Container 2
Container 3
Docker Host
Docker Daemon
Container 1
Container 2
Container 3
Docker Host
Docker Daemon
Container 1
Container 2
Container 3
Docker Host
Docker-machine

104. Docker Swarm
Docker Swarm is native clustering for Docker. It turns a
pool of Docker hosts into a single, virtual host.
Swarm serves the standard Docker API, so any tool which
already communicates with a Docker daemon can use
Swarm to transparently scale to multiple hosts: Dokku,
Compose, Krane, Flynn, Deis, DockerUI, Shipyard, Drone,
Jenkins... and, of course, the Docker client itself.

105. “Cows not pets”

106. “Cows not pets”
Pets
● Pets have names
● They are unique, loving, hand
raised and cared for
● When they are sick, they are
taken to the vet.

107. “Cows not pets”
Pets
● Pets have names
● They are unique, loving, hand
raised and cared for
● When they are sick, they are
taken to the vet.
Cows
● Cows have numbers
● They are not unique, they are a
commodity.
● When they are sick....?

108. “Cows not pets”
Pets
● Pets have names
● They are unique, loving, hand
raised and cared for
● When they are sick, they are
taken to the vet.
Cows
● Cows have numbers
● They are not unique, they are a
commodity.
● When they are sick....?

109. Swarm
Docker CLI
Docker Daemon
Container 1
Container 2
Container 3
Docker Host
Docker Daemon
Container 1
Container 2
Container 3
Docker Host
Docker Daemon
Container 1
Container 2
Container 3
Docker Host
Swarm

110. Live demo...

111. Thank you!
patrick@sparefoot.com
Github: https://github.com/maximizer
● I put all of the examples in
docker-midwestphp15
https://joind.in/13076