Merge pull request #51 from RandomProgramm3r/develop

feat: Dockerize application for development
This commit introduces a complete Docker and Docker Compose setup, enabling developers to build, run, and test the application in a consistent, isolated environment. It also prepares the application for containerized deployments.

Changes include:
 - **Dockerfile**: A multi-stage build process is implemented. It separates build-time dependencies from the final runtime image, creating a smaller and more secure production artifact. `gunicorn` is used as the application server.
 - **docker-compose.yml**: Defines the `app` and `redis` services, linking them together.
- **settings.py**:
     - Configured to connect to the Redis service for Django's caching backend. 
     - Added settings for the Anti-fraud service URLs. 
     - All new configurations (Redis URL, Anti-fraud URLs) are driven by environment variables for flexibility and security, with sensible defaults for local development.
 - **requirements/prod.txt**: Added `django-redis` and `requests`.
 - **.dockerignore**: Updated to exclude unnecessary files from the Docker build context, ensuring faster and smaller builds.

Author: RandomProgramm3r

.dockerignore

@@ -1,17 +1,29 @@
-.dockerignore
-Dockerfile
-README.md
+# Virtual Environments
+venv/
+env/
+.venv/
+.env/
 
+# Python cache
+__pycache__/
 *.pyc
-*.pyo
-*.pyd
-__pycache__
 
-env/
-.venv/
-.env
-.env.example
-.venv/
+# Tooling cache & reports
+.ruff_cache/
+.coverage
+.coverage.*
+
+# Version Control
+.git/
+.gitignore
+
+# IDE and editor directories
+.vscode/
+.idea/
+
+# Requirements files not needed in production
+requirements/dev.txt
 
-.git
-.gitignore
+# Log files
+*.log
+*.log.*

Dockerfile

@@ -7,10 +7,12 @@ ENV PYTHONBUFFERED=1 \
 
 WORKDIR /usr/src/app
 
-COPY . .
+COPY requirements/prod.txt ./requirements.txt
 
 RUN pip install --upgrade pip && \
-    pip install -r requirements/prod.txt
+    pip install --no-cache-dir -r requirements.txt
+
+COPY . .
 
 CMD ["sh", "-c", "cd /usr/src/app/promo_code && python manage.py migrate --noinput && gunicorn promo_code.wsgi:application --bind ${SERVER_ADDRESS}"]
 

docker-compose.yml

@@ -0,0 +1,58 @@
+services:
+  web:
+    build: .
+    container_name: promo_code
+    ports:
+      - 8000:8080
+    volumes:
+      - .:/usr/src/app
+    depends_on:
+      db:
+        condition: service_healthy
+        restart: true
+      redis:
+        condition: service_started
+      antifraud:
+        condition: service_started
+
+    env_file:
+      - .env
+  db:
+    image: postgres:17
+    container_name: postgres_db
+    volumes:
+      - postgres_db:/var/lib/postgresql/data/
+    environment:
+      POSTGRES_DB: ${POSTGRES_DATABASE}
+      POSTGRES_USER: ${POSTGRES_USERNAME}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USERNAME} -d ${POSTGRES_DATABASE}"]
+      interval: 10s
+      timeout: 10s
+      retries: 5
+      start_period: 30s
+    env_file:
+      - .env
+  
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+
+    
+  antifraud:
+    image: lodthe/prod-backend-antifraud:latest
+    environment:
+      SERVER_PORT: ${ANTIFRAUD_INTERNAL_PORT}
+      CACHE_DURATION_MS: ${ANTIFRAUD_CACHE_MS}
+      SLOWDOWN_AFTER: ${ANTIFRAUD_SLOWDOWN_AFTER}
+      BLOCKED_EMAILS: ${ANTIFRAUD_BLOCKED_EMAILS}
+    ports:
+      - "${ANTIFRAUD_EXTERNAL_PORT}:${ANTIFRAUD_INTERNAL_PORT}"
+
+volumes:
+  postgres_db:
+  redis_data:

promo_code/promo_code/settings.py

@@ -141,6 +141,21 @@ def load_bool(name, default):
     },
 }
 
+CACHES = {
+    'default': {
+        'BACKEND': 'django_redis.cache.RedisCache',
+        'LOCATION': os.getenv('REDIS_URL', 'redis://127.0.0.1:6379/0'),
+        'OPTIONS': {
+            'CLIENT_CLASS': 'django_redis.client.DefaultClient',
+        },
+    },
+}
+
+ANTIFRAUD_ADDRESS = f'{os.getenv("ANTIFRAUD_ADDRESS")}'
+ANTIFRAUD_VALIDATE_URL = f'{ANTIFRAUD_ADDRESS}/api/validate'
+ANTIFRAUD_UPDATE_USER_VERDICT_URL = (
+    f'{ANTIFRAUD_ADDRESS}/internal/update_user_verdict'
+)
 
 AUTH_PASSWORD_VALIDATORS = [
     {

requirements/prod.txt

@@ -1,7 +1,10 @@
 django==5.2
+django-redis==6.0.0
 djangorestframework==3.15.2
 djangorestframework-simplejwt==5.4.0
 gunicorn==23.0.0
 psycopg2-binary==2.9.10
 pycountry==24.6.1
 python-dotenv==1.0.1
+requests==2.32.4
+parameterized==0.9.0