Setup Dockerized Django Cinema Project with Env and Fixtures

.dockerignore

@@ -0,0 +1,8 @@
+.venv
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+*.sqlite3
+.git
+.github

.env.docker

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+DJANGO_SECRET_KEY=unsafe-secret-key
+DJANGO_DEBUG=False
+
+POSTGRES_DB=cinema
+POSTGRES_USER=cinema_user
+POSTGRES_PASSWORD=cinema_pass
+POSTGRES_HOST=db
+POSTGRES_PORT=5432
+
+DJANGO_ALLOWED_HOSTS=localhost,127.0.0.1
+
+# Автоматичний суперкористувач
+DJANGO_SUPERUSER_USERNAME=admin2
+DJANGO_SUPERUSER_EMAIL=admin2@test.com
+DJANGO_SUPERUSER_PASSWORD=Admin123!

.env.example

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+# Django settings
+DJANGO_SECRET_KEY=unsafe-secret-key
+DJANGO_DEBUG=True
+
+# PostgreSQL settings
+POSTGRES_DB=cinema
+POSTGRES_USER=cinema_user
+POSTGRES_PASSWORD=cinema_pass
+POSTGRES_HOST=db
+POSTGRES_PORT=5432

.env.local

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+DJANGO_SECRET_KEY=unsafe-secret-key
+DJANGO_DEBUG=True
+
+POSTGRES_DB=cinema
+POSTGRES_USER=cinema_user
+POSTGRES_PASSWORD=cinema_pass
+POSTGRES_HOST=localhost
+POSTGRES_PORT=5432
+
+DJANGO_ALLOWED_HOSTS=localhost,127.0.0.1

.gitignore

@@ -1,10 +1,26 @@
+# IDE / Editor configs
 .idea/
 .vscode/
 *.iml
+
+# Environment files
 .env
+.env.local
+.env.docker
+
+# OS files
 .DS_Store
+
+# Virtual environments
 venv/
+.venv/
+
+# Python cache
 .pytest_cache/
 **__pycache__/
+
+# SQLite DB (якщо використовується для тестів)
 **db.sqlite3
-media
+
+# Media files (зберігаються у volume)
+media/

Dockerfile

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+FROM python:3.10-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+CMD ["gunicorn", "cinema.wsgi:application", "--bind", "0.0.0.0:8000"]

cinema/management/commands/wait_for_db.py

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+import time
+from django.db import connections
+from django.db.utils import OperationalError
+from django.core.management.base import BaseCommand
+
+
+class Command(BaseCommand):
+    def handle(self, *args, **options):
+        self.stdout.write("Waiting for database...")
+        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)
+        self.stdout.write(self.style.SUCCESS("Database available!"))

cinema/migrations/0002_alter_movie_actors_alter_movie_genres_and_more.py

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+# Generated by Django 5.0.3 on 2026-03-18 16:25
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cinema', '0001_initial'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='movie',
+            name='actors',
+            field=models.ManyToManyField(blank=True, related_name='movies', to='cinema.actor'),
+        ),
+        migrations.AlterField(
+            model_name='movie',
+            name='genres',
+            field=models.ManyToManyField(blank=True, related_name='movies', to='cinema.genre'),
+        ),
+        migrations.AlterField(
+            model_name='moviesession',
+            name='cinema_hall',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='movie_sessions', to='cinema.cinemahall'),
+        ),
+        migrations.AlterField(
+            model_name='moviesession',
+            name='movie',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='movie_sessions', to='cinema.movie'),
+        ),
+        migrations.AlterField(
+            model_name='order',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='orders', to=settings.AUTH_USER_MODEL),
+        ),
+    ]

cinema_service/settings.py

@@ -1,39 +1,15 @@
-"""
-Django settings for cinema_service project.
-
-Generated by 'django-admin startproject' using Django 4.0.4.
-
-For more information on this file, see
-https://docs.djangoproject.com/en/4.0/topics/settings/
-
-For the full list of settings and their values, see
-https://docs.djangoproject.com/en/4.0/ref/settings/
-"""
+import os
 from datetime import timedelta
 from pathlib import Path
 
-# Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
+SECRET_KEY = os.getenv("DJANGO_SECRET_KEY", "unsafe-secret-key")
+DEBUG = os.getenv("DJANGO_DEBUG", "True") == "True"
 
-# Quick-start development settings - unsuitable for production
-# 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"
-)
-
-# SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
+ALLOWED_HOSTS = os.getenv("DJANGO_ALLOWED_HOSTS", "localhost").split(",")
 
-ALLOWED_HOSTS = []
-
-INTERNAL_IPS = [
-    "127.0.0.1",
-]
-
-# Application definition
+INTERNAL_IPS = ["127.0.0.1"]
 
 INSTALLED_APPS = [
     "django.contrib.admin",
@@ -80,90 +56,56 @@
 
 WSGI_APPLICATION = "cinema_service.wsgi.application"
 
-
-# Database
-# https://docs.djangoproject.com/en/4.0/ref/settings/#databases
-
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.sqlite3",
-        "NAME": BASE_DIR / "db.sqlite3",
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": os.getenv("POSTGRES_DB", "cinema"),
+        "USER": os.getenv("POSTGRES_USER", "cinema_user"),
+        "PASSWORD": os.getenv("POSTGRES_PASSWORD", "cinema_pass"),
+        "HOST": os.getenv("POSTGRES_HOST", "db"),
+        "PORT": os.getenv("POSTGRES_PORT", "5432"),
     }
 }
 
-
-# Password validation
-# https://docs.djangoproject.com/en/4.0/ref/settings/#auth-password-validators
-
 AUTH_PASSWORD_VALIDATORS = [
-    {
-        "NAME": "django.contrib.auth.password_validation."
-        "UserAttributeSimilarityValidator",
-    },
-    {
-        "NAME": "django.contrib.auth.password_validation."
-        "MinimumLengthValidator",
-    },
-    {
-        "NAME": "django.contrib.auth.password_validation."
-        "CommonPasswordValidator",
-    },
-    {
-        "NAME": "django.contrib.auth.password_validation."
-        "NumericPasswordValidator",
-    },
+    {"NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator"},
+    {"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator"},
+    {"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator"},
+    {"NAME": "django.contrib.auth.password_validation.NumericPasswordValidator"},
 ]
 
 AUTH_USER_MODEL = "user.User"
 
-# Internationalization
-# https://docs.djangoproject.com/en/4.0/topics/i18n/
-
 LANGUAGE_CODE = "en-us"
-
 TIME_ZONE = "UTC"
-
 USE_I18N = True
+USE_TZ = True
 
-USE_TZ = False
-
-
-# Static files (CSS, JavaScript, Images)
-# https://docs.djangoproject.com/en/4.0/howto/static-files/
-
-STATIC_URL = "static/"
+STATIC_URL = "/static/"
+STATIC_ROOT = os.getenv("DJANGO_STATIC_ROOT", BASE_DIR / "static")
 
 MEDIA_URL = "/media/"
-MEDIA_ROOT = BASE_DIR / "media"
-
-# Default primary key field type
-# https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
+MEDIA_ROOT = os.getenv("DJANGO_MEDIA_ROOT", BASE_DIR / "media")
 
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
 
 REST_FRAMEWORK = {
     "DEFAULT_SCHEMA_CLASS": "drf_spectacular.openapi.AutoSchema",
+    "DEFAULT_AUTHENTICATION_CLASSES": (
+        "rest_framework_simplejwt.authentication.JWTAuthentication",
+    ),
     "DEFAULT_THROTTLE_CLASSES": [
         "rest_framework.throttling.AnonRateThrottle",
         "rest_framework.throttling.UserRateThrottle",
     ],
     "DEFAULT_THROTTLE_RATES": {"anon": "10/day", "user": "30/day"},
-    "DEFAULT_AUTHENTICATION_CLASSES": (
-        "rest_framework_simplejwt.authentication.JWTAuthentication",
-    ),
 }
 
 SPECTACULAR_SETTINGS = {
     "TITLE": "Cinema Service API",
     "DESCRIPTION": "Order cinema tickets",
     "VERSION": "1.0.0",
     "SERVE_INCLUDE_SCHEMA": False,
-    "SWAGGER_UI_SETTINGS": {
-        "deepLinking": True,
-        "defaultModelRendering": "model",
-        "defaultModelsExpandDepth": 2,
-        "defaultModelExpandDepth": 2,
-    },
 }
 
 SIMPLE_JWT = {

docker-compose.yml

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+services:
+  db:
+    image: postgres:15
+    env_file:
+      - .env.docker
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+
+  app:
+    build: .
+    env_file:
+      - .env.docker
+    command: >
+      sh -c "python manage.py wait_for_db &&
+             python manage.py migrate &&
+             python manage.py collectstatic --noinput &&
+             gunicorn cinema_service.wsgi:application --bind 0.0.0.0:8000"
+    volumes:
+      - .:/app
+      - static_volume:/app/static
+      - media_volume:/app/media
+    ports:
+      - "8000:8000"
+    depends_on:
+      - db
+
+volumes:
+  postgres_data:
+  static_volume:
+  media_volume: