Develop

.dockerignore

@@ -0,0 +1,15 @@
+.git
+.gitignore
+
+.venv
+venv
+env
+__pycache__
+*.pyc
+
+*.sqlite3
+
+.env
+
+staticfiles
+media

Dockerfile

@@ -0,0 +1,25 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential gcc libpq-dev libjpeg-dev zlib1g-dev curl && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+RUN adduser --disabled-password --no-create-home django-user
+
+RUN mkdir -p /vol/web/media && \
+    chown -R django-user:django-user /vol && \
+    chmod -R 755 /vol/web
+
+COPY . /app
+RUN chown -R django-user:django-user /app
+
+USER django-user
+
+EXPOSE 8000
+
+CMD ["gunicorn", "cinema_service.wsgi:application", "--bind", "0.0.0.0:8000"]

cinema/management/commands/wait_for_db.py

@@ -0,0 +1,17 @@
+import time
+from django.db import connections
+from django.db.utils import OperationalError
+from django.core.management.base import BaseCommand
+
+
+class Command(BaseCommand):
+    """Django command that waits for the database to be available."""
+
+    def handle(self, *args, **options):
+        db_conn = None
+        while not db_conn:
+            try:
+                db_conn = connections["default"]
+            except OperationalError:
+                self.stdout.write("Database unavailable, waiting 1 second...")
+                time.sleep(1)

cinema_service/settings.py

@@ -9,8 +9,10 @@
 For the full list of settings and their values, see
 https://docs.djangoproject.com/en/4.0/ref/settings/
 """
+
 from datetime import timedelta
 from pathlib import Path
+import os
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
@@ -20,14 +22,14 @@
 # See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = (
-    "django-insecure-6vubhk2$++agnctay_4pxy_8cq)mosmn(*-#2b^v4cgsh-^!i3"
+SECRET_KEY = os.environ.get(
+    "SECRET_KEY", default="django-insecure-+_!@#%&*()_+1234567890"
 )
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
+DEBUG = bool(os.environ.get("DEBUG", default=0))
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = os.environ.get("DJANGO_ALLOWED_HOSTS").split(" ")
 
 INTERNAL_IPS = [
     "127.0.0.1",
@@ -86,8 +88,12 @@
 
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.sqlite3",
-        "NAME": BASE_DIR / "db.sqlite3",
+        "ENGINE": os.environ.get("SQL_ENGINE", "django.db.backends.sqlite3"),
+        "NAME": os.environ.get("SQL_DATABASE", BASE_DIR / "db.sqlite3"),
+        "USER": os.environ.get("SQL_USER", "user"),
+        "PASSWORD": os.environ.get("SQL_PASSWORD", "password"),
+        "HOST": os.environ.get("SQL_HOST", "localhost"),
+        "PORT": os.environ.get("SQL_PORT", "5432"),
     }
 }
 
@@ -134,7 +140,7 @@
 STATIC_URL = "static/"
 
 MEDIA_URL = "/media/"
-MEDIA_ROOT = BASE_DIR / "media"
+MEDIA_ROOT = "/vol/web/media"
 
 # Default primary key field type
 # https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field

docker-compose.yml

@@ -0,0 +1,33 @@
+services:
+  app:
+    build:
+      context: .
+    ports:
+      - "8000:8000"
+    command: >
+      sh -c "python manage.py wait_for_db &&
+             python manage.py migrate &&
+             python manage.py runserver 0.0.0.0:8000"
+    env_file:
+      - .env
+
+    volumes:
+      - ./:/app
+      - media_volume:/vol/web/media
+    depends_on:
+      - db
+  db:
+    image: postgres:14-alpine
+    ports:
+      - "5433:5432"
+    env_file:
+      - .env
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    environment:
+      - POSTGRES_USER=hello_django
+      - POSTGRES_PASSWORD=hello_django
+      - POSTGRES_DB=hello_django_dev
+volumes:
+  pgdata:
+  media_volume:

requirements.txt

@@ -8,3 +8,4 @@ djangorestframework
 djangorestframework-simplejwt
 drf-spectacular
 Pillow
+psycopg2-binary == 2.9.11