add docker-compose deployment

Author: Jefwillems

.env.example

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+DEBUG=0
+SECRET_KEY="seeeecret"
+DJANGO_SETTINGS_MODULE="qr_service.settings.production"

Dockerfile

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+FROM python:3.7
+
+RUN mkdir /app
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .

docker-compose.yml

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+version: '3'
+services:
+  web:
+    build: .
+    container_name: qr_service
+    volumes:
+      - .:/app
+    expose:
+      - 8000
+    env_file:
+      - .env
+    command: bash -c "gunicorn --workers=3 qr_service.wsgi -b 0.0.0.0:8000"
+  nginx:
+    restart: always
+    build: ./nginx/
+    volumes:
+      - ./nginx/:/etc/nginx/conf.d
+      - ./logs/:/app/logs
+    ports:
+      - 1337:80
+    depends_on:
+      - web
+    links:
+      - web

nginx/Dockerfile

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+FROM nginx
+
+RUN rm /etc/nginx/conf.d/default.conf
+COPY qr_service.conf /etc/nginx/conf.d

nginx/qr_service.conf

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+upstream qr_service {
+    server web:8000;
+}
+
+server {
+
+    listen 80;
+
+    location / {
+        proxy_pass http://qr_service;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header Host $host;
+        proxy_redirect off;
+    }
+
+}