Welcome

Daniel LeBlanc

CEO at ctrlweb

@danidou

https://ca.linkedin.com/in/dleblanc78

daniel@ctrlweb.ca

Job Offers

Job Seekers

invite.yuldev.ca

Glossary

Docker Engine

Creates and runs Docker containers.

But why?

Hacking like a pro on your machine

thinking: "Docker is for n00bz!"

Here are a few good
reasons to use Docker:

1. Gives you consistency between environments
2. Speeds up environment setup & deployments
3. Allows you to share your projects, environment included
4. Allows you to build portable and scalable solutions
5. Gives you environment versioning
6. ... and much, much more!

Recipe time!

Recipe #1

A micro PaaS server

autodock:
  image: prologic/autodock
  restart: always
  ports:
    - "1338:1338/udp"
    - "1338:1338/tcp"
  volumes:
    - /var/run/docker.sock:/var/run/docker.sock

autodocklogger:
  image: prologic/autodock-logger
  restart: always
  links:
    - autodock

autodockhipache:
  image: prologic/autodock-hipache
  restart: always
  links:
    - autodock
    - hipache:redis

hipache:
  image: tutum/hipache
  restart: always
  ports:
    - 80:80
    - 443:443

Step 1: Create a Docker Compose file

$ docker-compose up -d

Step 2: Run it

Recipe #2

A working Django application

Step 1: Create a Dockerfile

FROM python:3.3

ENV PYTHONBUFFERED 1
ENV APPLICATION_ROOT /code

RUN mkdir -p $APPLICATION_ROOT
WORKDIR $APPLICATION_ROOT
ADD requirements.txt $APPLICATION_ROOT/
RUN pip install -r requirements.txt
ADD . $APPLICATION_ROOT/

Dockerfile

Step 2: Create a requirements file

Django
psycopg2

requirements.txt

Step 3: Create a Docker Compose file

app:
  build: .
  expose:
    - "80"
  links:
    - db
  volumes:
    - .:/code
  command: python3 manage.py runserver 0.0.0.0:80
  environment:
    VIRTUALHOST: montreal-django.local
db:
  image: postgres

docker-compose.yml

Step 4: Setup a Django project

$ docker-compose run app django-admin.py startproject tutorial .
Starting dockertutorial_db_1...

Step 5: Configure your DB

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'postgres',
        'USER': 'postgres',
        'HOST': 'db',
        'PORT': 5432,
    }
}

Step 6: Run it

$ docker-compose up -d
Starting dockertutorial_db_1...
Starting dockertutorial_app_1...

montreal-django.local