Dockerize your development setup

Everyone is talking about docker, containers, images, microservices but, very few
really talk about how to help developers get started in this whole new world.
This talk will give you an overview about docker, show you about basic concepts
you need to know to test the waters, point out some common pitfals,
and finally demonstrate the docker setup that cover most of your php needs
out of the box.

Transcript

1. DOCKERIZE YOUR DEVELOPMENT SETUP
   1 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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2. business owner, developer, consultant, mercenary,
   writing terrible code that performs exceptionally,
   wrangling elePHPants and Pythons, obsessed with
   process automation, interested in continuous integration
   and delivery, clean code, testing, best practices and
   distributed systems
   2 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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3. 3 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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4. 4 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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5. 5 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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6. 6 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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7. 7 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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8. 8 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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9. WHAT IS DOCKER?
   9 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
   

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10. IMAGES
    10 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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11. CONTAINERS
    11 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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12. NETWORK
    $ docker network ls
    NETWORK ID NAME DRIVER
    7fca4eb8c647 bridge bridge
    9f904ee27bf5 none null
    cf03ee007fb4 host host
    12 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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13. VOLUMES
    13 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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14. DOCKERFILE
    14 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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15. FROM alpine:3.5
    LABEL maintainer Srdjan Vranac
    ARG NGINX_PROJECT_ROOT="/application/web"
    ARG NGINX_ENTRY_POINT_FILE="app_dev.php"
    ARG NGINX_ALLOWED_FILES="app|app_dev|config"
    RUN apk add --update nginx && rm -rf /var/cache/apk/*
    ADD ./nginx.conf /etc/nginx/nginx.conf
    ADD ./application-7.1.conf \
    ./application-debug-7.1.conf \
    ./application-7.0.conf \
    ./application-debug-7.0.conf \
    ./application-5.6.conf \
    ./application-debug-5.6.conf \
    /etc/nginx/conf.d/
    RUN /bin/sed -i "s@\${PROJECT_ROOT}@$NGINX_PROJECT_ROOT@" /etc/nginx/conf.d/application*.conf \
    && /bin/sed -i "s@\${ENTRY_POINT_FILE}@$NGINX_ENTRY_POINT_FILE@" /etc/nginx/conf.d/application*.conf \
    && /bin/sed -i "s@\${ALLOWED_FILES}@$NGINX_ALLOWED_FILES@" /etc/nginx/conf.d/application*.conf
    RUN mkdir -p /var/log/nginx
    EXPOSE 8071 9071 8070 9070 8056 9056
    CMD ["nginx"]
    15 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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16. 128 LAYERED CAEK (WAS 42)
    16 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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17. EXPECTO DOCKER
    17 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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18. $ docker run docker/whalesay cowsay boo
    Unable to find image 'docker/whalesay:latest' locally
    latest: Pulling from docker/whalesay
    e9e06b06e14c: Pull complete
    a82efea989f9: Pull complete
    37bea4ee0c81: Pull complete
    07f8e8c5e660: Pull complete
    676c4a1897e6: Pull complete
    5b74edbcaa5b: Pull complete
    1722f41ddcb5: Pull complete
    99da72cfe067: Pull complete
    5d5bd9951e26: Pull complete
    fb434121fc77: Already exists
    Digest: sha256:d6ee73f978a366cf97974115abe9c4099ed59c6f75c23d03c64446bb9cd49163
    Status: Downloaded newer image for docker/whalesay:latest
    _____
    < boo >
    -----
    \
    \
    \
    ## .
    ## ## ## ==
    ## ## ## ## ===
    /""""""""""""""""___/ ===
    ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ / ===- ~~~
    \______ o __/
    \ \ __/
    \____\______/
    18 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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19. $ docker build -t docker-whale .
    Sending build context to Docker daemon 2.048 kB
    Step 1 : FROM docker/whalesay:latest
    ---> 6b362a9f73eb
    Step 2 : RUN apt-get -y update && apt-get install -y fortunes
    ---> Running in 05d4eda04526
    Ign http://archive.ubuntu.com trusty InRelease
    Get:1 http://archive.ubuntu.com trusty-updates InRelease [65.9 kB]
    Get:2 http://archive.ubuntu.com trusty-security InRelease [65.9 kB]
    Hit http://archive.ubuntu.com trusty Release.gpg
    Hit http://archive.ubuntu.com trusty Release
    Get:3 http://archive.ubuntu.com trusty-updates/main Sources [480 kB]
    Get:4 http://archive.ubuntu.com trusty-updates/restricted Sources [5921 B]
    Get:5 http://archive.ubuntu.com trusty-updates/universe Sources [214 kB]
    Get:6 http://archive.ubuntu.com trusty-updates/main amd64 Packages [1160 kB]
    Get:7 http://archive.ubuntu.com trusty-updates/restricted amd64 Packages [20.4 kB]
    Get:8 http://archive.ubuntu.com trusty-updates/universe amd64 Packages [505 kB]
    Get:9 http://archive.ubuntu.com trusty-security/main Sources [157 kB]
    Get:10 http://archive.ubuntu.com trusty-security/restricted Sources [4621 B]
    Get:11 http://archive.ubuntu.com trusty-security/universe Sources [54.5 kB]
    Get:12 http://archive.ubuntu.com trusty-security/main amd64 Packages [700 kB]
    Get:13 http://archive.ubuntu.com trusty-security/restricted amd64 Packages [17.0 kB]
    Get:14 http://archive.ubuntu.com trusty-security/universe amd64 Packages [191 kB]
    Hit http://archive.ubuntu.com trusty/main Sources
    Hit http://archive.ubuntu.com trusty/restricted Sources
    Hit http://archive.ubuntu.com trusty/universe Sources
    Hit http://archive.ubuntu.com trusty/main amd64 Packages
    Hit http://archive.ubuntu.com trusty/restricted amd64 Packages
    Hit http://archive.ubuntu.com trusty/universe amd64 Packages
    Fetched 3640 kB in 11s (329 kB/s)
    19 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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20. Reading package lists...
    Reading package lists...
    Building dependency tree...
    Reading state information...
    The following extra packages will be installed:
    fortune-mod fortunes-min librecode0
    Suggested packages:
    x11-utils bsdmainutils
    The following NEW packages will be installed:
    fortune-mod fortunes fortunes-min librecode0
    0 upgraded, 4 newly installed, 0 to remove and 92 not upgraded.
    Need to get 1961 kB of archives.
    After this operation, 4817 kB of additional disk space will be used.
    Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main librecode0 amd64 3.6-21 [771 kB]
    Get:2 http://archive.ubuntu.com/ubuntu/ trusty/universe fortune-mod amd64 1:1.99.1-7 [39.5 kB]
    Get:3 http://archive.ubuntu.com/ubuntu/ trusty/universe fortunes-min all 1:1.99.1-7 [61.8 kB]
    Get:4 http://archive.ubuntu.com/ubuntu/ trusty/universe fortunes all 1:1.99.1-7 [1089 kB]
    debconf: unable to initialize frontend: Dialog
    debconf: (TERM is not set, so the dialog frontend is not usable.)
    debconf: falling back to frontend: Readline
    debconf: unable to initialize frontend: Readline
    debconf: (This frontend requires a controlling tty.)
    debconf: falling back to frontend: Teletype
    dpkg-preconfigure: unable to re-open stdin:
    Fetched 1961 kB in 19s (101 kB/s)
    Selecting previously unselected package librecode0:amd64.
    (Reading database ... 13116 files and directories currently installed.)
    Preparing to unpack .../librecode0_3.6-21_amd64.deb ...
    20 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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21. Unpacking librecode0:amd64 (3.6-21) ...
    Selecting previously unselected package fortune-mod.
    Preparing to unpack .../fortune-mod_1%3a1.99.1-7_amd64.deb ...
    Unpacking fortune-mod (1:1.99.1-7) ...
    Selecting previously unselected package fortunes-min.
    Preparing to unpack .../fortunes-min_1%3a1.99.1-7_all.deb ...
    Unpacking fortunes-min (1:1.99.1-7) ...
    Selecting previously unselected package fortunes.
    Preparing to unpack .../fortunes_1%3a1.99.1-7_all.deb ...
    Unpacking fortunes (1:1.99.1-7) ...
    Setting up librecode0:amd64 (3.6-21) ...
    Setting up fortune-mod (1:1.99.1-7) ...
    Setting up fortunes-min (1:1.99.1-7) ...
    Setting up fortunes (1:1.99.1-7) ...
    Processing triggers for libc-bin (2.19-0ubuntu6.6) ...
    ---> dfaf993d4a2e
    Removing intermediate container 05d4eda04526
    Successfully built c2c3152907b5
    21 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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22. $ docker run docker-whale
    ______________________________________
    < You will be successful in your work. >
    --------------------------------------
    \
    \
    \
    ## .
    ## ## ## ==
    ## ## ## ## ===
    /""""""""""""""""___/ ===
    ~~~ {~~ ~~~~ ~~~ ~~~~ ~~ ~ / ===- ~~~
    \______ o __/
    \ \ __/
    \____\______/
    22 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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23. THINGS GET OUT OF HAND QUICKLY
    (COMMAND SAUSAGE FEST)
    docker run --rm -it --link web_service_container wernight/ngrok ngrok http web_service_container:80
    docker run -d -v ~/nginxlogs:/var/log/nginx -p 5000:80 -i nginx
    23 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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24. THERE HAS TO BE A BETTER WAY
    24 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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25. DOCKER COMPOSE
    25 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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26. ANATOMY OF A COMPOSE FILE
    version: '2'
    services:
    web:
    build: .
    ports:
    - "5000:5000"
    volumes:
    - .:/code
    - logvolume01:/var/log
    links:
    - redis
    redis:
    image: redis
    volumes:
    logvolume01: {}
    26 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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27. .ENV
    version: '2'
    services:
    mysql:
    image: mysql
    volumes:
    - "${DATA_PATH}/mysql/db:/var/lib/mysql"
    environment:
    MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
    MYSQL_DATABASE: ${MYSQL_DATABASE}
    MYSQL_USER: ${MYSQL_USER}
    MYSQL_PASSWORD: ${MYSQL_PASSWORD}
    ports:
    - 3306:3306
    27 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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28. ROOTING OUT THE LUNACY
    28 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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29. /etc/subuid:
    vranac:1000:1
    vranac:100000:65536
    /etc/subgid:
    vranac:1000:1
    vranac:100000:65536
    29 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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30. /proc/[PID]/uid_map:
    0 1000 1
    1 100000 65535
    30 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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31. /etc/docker/daemon.json:
    {
    "userns-remap": "vranac"
    }
    31 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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32. WOES OF A MAC
    32 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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33. PERFORMANCE
    33 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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34. DEMO TIME
    34 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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35. DOCKER-SYNC.IO
    35 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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36. DEMO TIME
    36 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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37. Networking
    docker0 Link encap:Ethernet HWaddr 02:42:43:64:dc:98
    inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0 <-- This is what you want
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:0
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
    37 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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38. I want to connect from a container to a service on the host
    The Mac has a changing IP address (or none if you have no network access).
    Our current recommendation is to attach an unused IP to the lo0 interface on the Mac;
    for example: sudo ifconfig lo0 alias 10.200.10.1/24, and make sure that your service is
    listening on this address or 0.0.0.0 (ie not 127.0.0.1). Then containers can connect to this address.
    38 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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39. sudo ifconfig lo0 alias 10.254.254.254 255.255.255.0
    39 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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40. 40 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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41. OUR DOCKER DEVELOPMENT SETUP
    41 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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42. WHAT'S IN THE BOX
    - nginx server
    - php-fpm 5.6, 7.0, 7.1 and debug versions
    - php cli 5.6, 7.0, 7.1
    - node
    - mailhog
    - redis
    - RabbitMq
    Optional:
    - ELK
    - Ngrok
    - Selenium standalone with firefox and chrome
    42 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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43. DEMO TIME
    43 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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44. THE END
    HTTPS://GITHUB.COM/CODE4HIRE/DOCKER-DEV-SETUP
    44 — Srdjan Vranac, Code4Hire, PHPSrbija 2017
    

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