From bb1d054192c9596af98e73b4c45fc77546a26ad9 Mon Sep 17 00:00:00 2001
From: Max <justamailnt@gmail.com>
Date: Tue, 1 Jul 2025 20:08:55 +0300
Subject: [PATCH] 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.
---
 .dockerignore                     | 38 +++++++++++++-------
 Dockerfile                        |  6 ++--
 docker-compose.yml                | 58 +++++++++++++++++++++++++++++++
 promo_code/promo_code/settings.py | 15 ++++++++
 requirements/prod.txt             |  3 ++
 5 files changed, 105 insertions(+), 15 deletions(-)
 create mode 100644 docker-compose.yml

diff --git a/.dockerignore b/.dockerignore
index 7b66fdf..080a908 100644
--- a/.dockerignore
+++ b/.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
\ No newline at end of file
+# Log files
+*.log
+*.log.*
diff --git a/Dockerfile b/Dockerfile
index 7d9f9ea..d0232b7 100644
--- a/Dockerfile
+++ b/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}"]
 
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..a2aeb4a
--- /dev/null
+++ b/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:
\ No newline at end of file
diff --git a/promo_code/promo_code/settings.py b/promo_code/promo_code/settings.py
index 9ca13f1..016a9d7 100644
--- a/promo_code/promo_code/settings.py
+++ b/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 = [
     {
diff --git a/requirements/prod.txt b/requirements/prod.txt
index 1a04882..8755a4f 100644
--- a/requirements/prod.txt
+++ b/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
\ No newline at end of file