Added Docker Compose support for production (#183)

* Added Docker Compose support for production

* Added rate limiting to nginx

README.md

@@ -138,6 +138,42 @@ Run the container on host port 8000
 docker run -d -p 8000:8000 pokeapi
 ```
 
+
+## Docker Compose
+
+There is also a multi-container setup, managed by [Docker Compose](https://docs.docker.com/compose/). This setup allow you to deploy a production-like environment, with separate containers for each services.
+
+Create data volumes for Redis and Postgres
+```
+docker volume create --name=redis_data
+docker volume create --name=pg_data
+```
+
+Start the process using
+```
+docker-compose up
+```
+You can specify the ```-d``` switch to start in detached mode.   
+This will bind port 80 and 443. Unfortunately, unlike the ```docker``` command, there is no command line arguments to specify ports. If you want to change them, edit the ```docker-compose.yml``` file.
+
+After that, start the migration process
+```
+docker-compose exec app python manage.py migrate
+```
+
+And then, import the data using the shell
+```
+docker-compose exec app python manage.py shell
+```
+
+You can use the ```build_all()``` method, or individuals data building functions (See _V2 Database setup_)
+```
+from data.v2.build import build_all
+build_all()
+```
+
+For the moment, this setup doesn't allow you to use the ```scale``` command.
+
 ## Contributing
 
 All contributions are welcome: bug fixes, data contributions, recommendations.

Resources/docker/app/Dockerfile

@@ -0,0 +1,16 @@
+FROM python:2.7
+
+ENV PYTHONUNBUFFERED 1
+ENV DJANGO_SETTINGS_MODULE 'config.docker-compose'
+ENV PYTHONHASHSEED 'random'
+
+RUN mkdir /code
+WORKDIR /code
+VOLUME /code
+
+ADD requirements.txt /code/
+RUN pip install --no-cache-dir -r requirements.txt
+ADD . /code/
+
+CMD gunicorn config.wsgi:application -c gunicorn.py.ini
+EXPOSE 8000

Resources/docker/web/Dockerfile

@@ -0,0 +1,2 @@
+FROM nginx:alpine
+COPY ./nginx/nginx.conf /etc/nginx/nginx.conf

Resources/nginx/nginx.conf

@@ -0,0 +1,68 @@
+worker_processes  1;
+
+events {
+    worker_connections  1024;
+    accept_mutex off;
+    use epoll;
+}
+
+http {
+    include       mime.types;
+    default_type  application/octet-stream;
+
+    sendfile        on;
+    tcp_nopush      on;
+    tcp_nodelay     on;
+
+    keepalive_timeout 5;
+
+    upstream pokeapi_upstream {
+        # 'app' is the Django container name in Docker
+        # DO NOT EDIT IT ALONE or it'll break docker-compose
+        server app:8000 fail_timeout=0;
+    }
+
+    limit_req_zone $binary_remote_addr zone=api:10m rate=2r/s;
+
+    server {
+        listen 80 deferred;
+        server_name _;
+
+        client_body_timeout 5s;
+        client_header_timeout 5s;
+
+        root /code;
+
+        location /media/ {
+            root /code;
+            autoindex off;
+        }
+
+        location /static/ {
+            alias /code/assets/;
+            autoindex off;
+        }
+
+        location /api/ {
+            limit_req zone=api burst=10;
+
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header Host $http_host;
+
+            proxy_redirect off;
+
+            proxy_pass http://pokeapi_upstream;
+        }
+
+        location / {
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header Host $http_host;
+
+            proxy_redirect off;
+
+            proxy_pass http://pokeapi_upstream;
+        }
+    }
+}

config/docker-compose.py

@@ -0,0 +1,27 @@
+# Docker settings
+from .settings import *  # NOQA
+
+DATABASES = {
+        'default': {
+            'ENGINE': 'django.db.backends.postgresql_psycopg2',
+            'NAME': 'pokeapi',
+            'USER': 'ash',
+            'PASSWORD': 'pokemon',
+            'HOST': 'db',
+            'PORT': 5432,
+        }
+}
+
+
+CACHES = {
+    "default": {
+        "BACKEND": "django_redis.cache.RedisCache",
+        "LOCATION": "redis://cache:6379/1",
+        "OPTIONS": {
+            "CLIENT_CLASS": "django_redis.client.DefaultClient",
+        }
+    }
+}
+
+DEBUG = False
+TASTYPIE_FULL_DEBUG = False

docker-compose.yml

@@ -0,0 +1,43 @@
+version: '2'
+services:
+  cache:
+    image: redis:alpine
+    volumes:
+      - redis_data:/data
+
+  db:
+    image: postgres
+    environment:
+      POSTGRES_PASSWORD: 'pokemon'
+      POSTGRES_USER: 'ash'
+      POSTGRES_DB: 'pokeapi'
+    volumes:
+      - pg_data:/var/lib/postgresql/data
+
+  app:
+    build:
+      context: .
+      dockerfile: ./Resources/docker/app/Dockerfile
+    volumes:
+      - /code
+    links:
+      - db
+      - cache
+
+  web:
+    build: 
+      context: ./Resources
+      dockerfile: ./docker/web/Dockerfile
+    ports:
+      - "80:80"
+      - "443:443"
+    volumes_from:
+      - app:ro
+    links:
+      - app
+
+volumes:
+  pg_data:
+    external: true
+  redis_data:
+    external: true

gunicorn.py.ini

@@ -0,0 +1,4 @@
+from multiprocessing import cpu_count
+
+bind = '0.0.0.0:8000'
+workers = cpu_count() * 2 + 1

requirements.txt

@@ -13,7 +13,7 @@ django-tastypie==0.12.1
 django-markdown-deux==1.0.5
 djangorestframework>=3.1.0
 drf-ujson==1.2.0
-gunicorn==0.17.0
+gunicorn==19.4.5
 markdown2==2.3.0
 mimeparse==0.1.3
 pilkit==1.1.12