Solution

.dockerignore

@@ -0,0 +1,4 @@
+.venv
+Dockerfile
+.idea
+docker-compose.yaml

Dockerfile

@@ -0,0 +1,23 @@
+FROM python:3.11.6-alpine3.18
+
+LABEL maintainer="rarturus"
+
+ENV PYTHONUNBUFFERED 1
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+RUN mkdir -p /files/media
+
+RUN adduser \
+        --disabled-password \
+        --no-create-home \
+        my_user
+
+RUN chown -R my_user /files/media
+RUN chmod -R 755 /files/media
+
+USER my_user

cinema/management/commands/wait_for_db.py

@@ -0,0 +1,19 @@
+import time
+from django.core.management.base import BaseCommand
+from django.db import connections
+from django.db.utils import OperationalError
+
+
+class Command(BaseCommand):
+    help1 = "Wait for database to be available"
+
+    def handle(self, *args, **options):
+        self.stdout.write("Waiting for database...")
+        while True:
+            try:
+                connections["default"].cursor()
+                break
+            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

@@ -0,0 +1,41 @@
+# Generated by Django 6.0.4 on 2026-04-16 22:41
+
+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

@@ -9,6 +9,7 @@
 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
 
@@ -86,12 +87,15 @@
 
 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"),
     }
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/4.0/ref/settings/#auth-password-validators
 
@@ -134,7 +138,8 @@
 STATIC_URL = "static/"
 
 MEDIA_URL = "/media/"
-MEDIA_ROOT = BASE_DIR / "media"
+MEDIA_ROOT = "files/media"
+
 
 # Default primary key field type
 # https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
@@ -167,7 +172,7 @@
 }
 
 SIMPLE_JWT = {
-    "ACCESS_TOKEN_LIFETIME": timedelta(minutes=5),
+    "ACCESS_TOKEN_LIFETIME": timedelta(days=1),
     "REFRESH_TOKEN_LIFETIME": timedelta(days=1),
     "ROTATE_REFRESH_TOKENS": False,
 }

docker-compose.yaml

@@ -0,0 +1,33 @@
+services:
+  cinema:
+    build:
+      context: .
+    env_file:
+      - .env
+    command: >
+       sh -c "python manage.py wait_for_db && python manage.py migrate &&
+                 python manage.py runserver 0.0.0.0:8000"
+    volumes:
+      - ./:/app
+      - media_data:/files/media
+    depends_on:
+      - db
+
+  db:
+    image: postgres:16.0-alpine3.17
+    environment:
+      POSTGRES_USER: "rarturus"
+      POSTGRES_PASSWORD: "password"
+      POSTGRES_DB: "db"
+    restart: always
+    ports:
+      - "5432:5432"
+    env_file:
+      - .env
+    volumes:
+      - db_data:$PG_DATA
+
+
+volumes:
+  db_data:
+  media_data:

requirements.txt

@@ -8,3 +8,5 @@ djangorestframework
 djangorestframework-simplejwt
 drf-spectacular
 Pillow
+psycopg==3.3.3
+psycopg-binary==3.3.3