Docker 4 WordPress

This was a talk about using Docker for local WordPress development given in Zrenjanin, Serbia on April 28, 2017.

Transcript

1. View Slide

2. THE THEORY OF EVERYTHING
   AND VERY BRIEFLY ABOUT DOCKER IN 

   WORDPRESS DEVELOPMENT
   Mladen Đurić
   @macmladen
   2
   5. MeetUp Zrenjanin 2017
   

   View Slide

3. Mladen Đurić
   @MacMladen
   3
   5. MeetUp Zrenjanin 2017
   

   View Slide

4. DOCKER 4 WORDPRESS
   IN DEVELOPMENT & PRODUCTION
   Mladen Đurić
   @macmladen
   4
   5. MeetUp Zrenjanin 2017
   

   View Slide

5. MLADEN ĐURIĆ
   a.k.a MacMladen
   • in IT since the time of mainframes,
   8th year in UNIX epoch (that’s 1978).
   • started with Z80 assembly, went over
   6502 to 8086 (1978-1990)
   • somewhere in between, there was an
   episode with BASIC but really enjoyed
   hard core C
   • was knee deep in DTP 1990-2000
   • gone to Mac in 1995 and never looked
   back
   • 2005 started playing with web
   technologies with WPMU but figured
   out it is not flexible enough
   • 2007 landed on Drupal
   5
   5. MeetUp Zrenjanin 2017
   

   View Slide

6. WPMU ?!
   Mladen Đurić
   @macmladen
   6
   5. MeetUp Zrenjanin 2017
   

   View Slide

7. TIMETABLE:
   1. The Problem ~5 min
   2. The Virtualization ~5 min
   3. The Docker ~10 min
   4. The Solution ~10 min
   5. The Practice ~10 min
   6. The Orchestration ~10 min
   7. Q & A: 10 min or more
   7
   5. MeetUp Zrenjanin 2017
   

   View Slide

8. 8
   5. MeetUp Zrenjanin 2017
   

   View Slide

9. 9
   WHEN IN ROME,

   DO AS THE ROMANS DO
   ‘I no longer craziest developer. Lol.’
   5. MeetUp Zrenjanin 2017
   

   View Slide

10. Chapter 1.
    THE PROBLEM
    10
    5. MeetUp Zrenjanin 2017
    

    View Slide

11. …JUST ONE?!
    1. System setup - for development
    2. Project setup - matching production
    3. Quick fix of the old one - matching what was
    4. Project setup - for a colleague
    5. Project weirdos - matching production
    6. Project requirements - one is 5.3 other 5.6, and 7.1…
    7. System upgrade - what the !#$%&%$ happened to ___
    8. Testing - would that work under…
    9. Archiving - I know what I did last summer but before that..!?
    11
    5. MeetUp Zrenjanin 2017
    

    View Slide

12. Chapter 2.
    THE VIRTUALIZATION
    12
    5. MeetUp Zrenjanin 2017
    

    View Slide

13. TYPES OF
    VIRTUALIZATION
    13
    1. Full virtualization
    almost as a physical machine
    2. Hypervisor
    runs different OSes
    3. Isolation
    runs OSes on same kernel
    5. MeetUp Zrenjanin 2017
    

    View Slide

14. FULL VIRTUALIZATION
    14
    5. MeetUp Zrenjanin 2017
    

    View Slide

15. HYPERVISOR
    15
    5. MeetUp Zrenjanin 2017
    

    View Slide

16. FULL / HYPERVISOR
    16
    5. MeetUp Zrenjanin 2017
    

    View Slide

17. CONTAINERIZATION
    17
    5. MeetUp Zrenjanin 2017
    

    View Slide

18. CONTAINERIZATION
    18
    5. MeetUp Zrenjanin 2017
    

    View Slide

19. Chapter 3.
    THE DOCKER
    19
    5. MeetUp Zrenjanin 2017
    

    View Slide

20. INSTALLATION
    20
    5. MeetUp Zrenjanin 2017
    

    View Slide

21. INSTALLATION
    21
    Docker Engine is supported on Cloud, Linux. Windows and Mac OS have native
    docker application.
    wget -qO- https://get.docker.com/ | sh docker –version
    Docker is treated like other services.
    sudo service docker status

    sudo service docker start
    Test the installation using this code
    sudo docker run ubuntu:14.04 /bin/echo 'Hello world'
    5. MeetUp Zrenjanin 2017
    

    View Slide

22. https://hub.docker.com/
    22
    5. MeetUp Zrenjanin 2017
    

    View Slide

23. docker
    23
    sudo docker run -d -p 8080:80 --name apache --link
    mysql:mysql -v /var/www/html:/var/www/html jessecascio/
    local:apache
    # verify the two containers are running, and link exists
    sudo docker ps
    sudo docker inspect -f "{{ .HostConfig.Links }}" apache
    5. MeetUp Zrenjanin 2017
    

    View Slide

24. docker-compose
    24
    version: '2'

    

    services:

    db:

    image: mysql:5.7

    volumes:

    - db_data:/var/lib/mysql

    restart: always

    environment:

    MYSQL_ROOT_PASSWORD: wordpress

    MYSQL_DATABASE: wordpress

    MYSQL_USER: wordpress

    MYSQL_PASSWORD: wordpress

    

    wordpress:

    depends_on:

    - db

    image: wordpress:latest

    ports:

    - "8000:80"

    restart: always

    environment:

    WORDPRESS_DB_HOST: db:3306

    WORDPRESS_DB_PASSWORD: wordpress

    volumes:

    db_data:
    The official docker-compose.yml for WordPress looks like this:
    5. MeetUp Zrenjanin 2017
    

    View Slide

25. docker and docker-compose commands
    25
    docker controls individual containers by name or ID while docker-compose controls a group of
    containers, usually called application or stack.
    Usual Docker commands:
    docker ps -a — lists all docker containers, running, paused and stopped.
    docker inspect mcidev_nginx_1 — lists all details about the container by name or ID
    docker stats --no-stream — shows resource usage, omit --no-stream to have live stats
    docker-compose up -d — while in directory structure containing docker-compose.yml, creates
    and starts application.
    docker-compose pull — fetch latest version of containers.
    docker-compose stop — stops application
    docker-compose start — starts application
    docker-compose restart — restarts application
    docker-compose down — remove containers (instance of contaners images)
    5. MeetUp Zrenjanin 2017
    

    View Slide

26. Dockerfile
    26
    The Apache Dockerfile can look like this.
    FROM ubuntu:14.04
    RUN apt-get update
    RUN apt-get install -y apache2
    RUN apt-get install -y php5 php5-common php5-cli php5-mysql
    php5-curl
    EXPOSE 80
    CMD ["/usr/sbin/apache2ctl", "-D", "FOREGROUND"]
    5. MeetUp Zrenjanin 2017
    

    View Slide

27. Chapter 4.
    THE SOLUTION
    27
    5. MeetUp Zrenjanin 2017
    

    View Slide

28. Chapter 5.
    THE PRACTICE
    28
    5. MeetUp Zrenjanin 2017
    

    View Slide

29. Chapter 6.
    THE ORCHESTRATION
    29
    5. MeetUp Zrenjanin 2017
    

    View Slide

30. 30
    Mladen Đurić
    @macmladen
    Q & A
    DOCKER4WORDPRESS
    5. MeetUp Zrenjanin 2017
    

    View Slide

31. THANKS!
    DOCKER4WORDPRESS
    Mladen Đurić
    @macmladen
    31
    5. MeetUp Zrenjanin 2017
    

    View Slide