Set up dockerised django project

.env

···
+POSTGRES_DB=dev_database
+POSTGRES_USER=dev_user
+POSTGRES_PASSWORD=test
+DB_HOST=db
+DB_PORT=5432

Dockerfile

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+FROM python:3.13-slim-bookworm
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+RUN apt-get update && apt-get install -y curl
+
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+
+COPY src/requirements.txt .
+RUN uv pip install -r requirements.txt --system
+
+COPY src/ .
+
+EXPOSE 8000
+
+# CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]
+CMD ["./entrypoint.sh"]

docker-compose.yml

···
+services:
+  web:
+    build: .
+    container_name: django_app
+    ports:
+      - 8000:8000
+    volumes:
+      - ./src:/app
+    depends_on:
+      db:
+        condition: service_healthy
+        restart: true
+    env_file:
+      - .env
+  db:
+    image: postgres:17
+    container_name: postgres_db
+    volumes:
+      - postgres_db:/var/lib/postgresql/data/
+    environment:
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_DB: ${POSTGRES_DB}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
+      interval: 10s
+      retries: 5
+      start_period: 30s
+      timeout: 10s
+    
+
+volumes:
+  postgres_db:

src/core/admin.py

···
+from django.contrib import admin
+
+# Register your models here.

src/core/apps.py

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+from django.apps import AppConfig
+
+
+class CoreConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "core"

src/core/migrations/0001_initial.py

···
+# Generated by Django 5.2.8 on 2025-12-02 09:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Actor',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=128)),
+                ('nationality', models.CharField(max_length=128)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+    ]

src/core/migrations/0002_actor_released.py

···
+# Generated by Django 5.2.8 on 2025-12-02 10:11
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='actor',
+            name='released',
+            field=models.DateField(blank=True, null=True),
+        ),
+    ]

src/core/models.py

···
+from django.db import models
+
+
+class Actor(models.Model):
+    name = models.CharField(max_length=128)
+    nationality = models.CharField(max_length=128)
+    created = models.DateTimeField(auto_now_add=True)
+    released = models.DateField(null=True, blank=True)
+
+    def __str__(self):
+        return self.name

src/core/tests.py

···
+from django.test import TestCase
+
+# Create your tests here.

src/core/views.py

···
+from django.shortcuts import render
+
+# Create your views here.

src/django_docker_demo/asgi.py

···
+"""
+ASGI config for django_docker_demo project.
+
+It exposes the ASGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/5.0/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "django_docker_demo.settings")
+
+application = get_asgi_application()

src/django_docker_demo/settings.py

···
+"""
+Django settings for django_docker_demo project.
+
+Generated by 'django-admin startproject' using Django 5.0.3.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/5.0/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/5.0/ref/settings/
+"""
+
+from pathlib import Path
+
+# Build paths inside the project like this: BASE_DIR / 'subdir'.
+BASE_DIR = Path(__file__).resolve().parent.parent
+
+
+# Quick-start development settings - unsuitable for production
+# See https://docs.djangoproject.com/en/5.0/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = "django-insecure-@do!$e7x&d_wb!z$_egm2kfi#0j+ndi=!=lh#4=&00kk9n%qvz"
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = True
+
+ALLOWED_HOSTS = []
+
+
+# Application definition
+
+INSTALLED_APPS = [
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "core",
+]
+
+MIDDLEWARE = [
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
+]
+
+ROOT_URLCONF = "django_docker_demo.urls"
+
+TEMPLATES = [
+    {
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+            ],
+        },
+    },
+]
+
+WSGI_APPLICATION = "django_docker_demo.wsgi.application"
+
+
+# Database
+# https://docs.djangoproject.com/en/5.0/ref/settings/#databases
+import os
+
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.postgresql",
+        "NAME": os.environ["POSTGRES_DB"],
+        "USER": os.environ["POSTGRES_USER"],
+        "PASSWORD": os.environ["POSTGRES_PASSWORD"],
+        "HOST": os.environ["DB_HOST"],
+        "PORT": os.environ["DB_PORT"],
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/5.0/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",
+    },
+]
+
+
+# Internationalization
+# https://docs.djangoproject.com/en/5.0/topics/i18n/
+
+LANGUAGE_CODE = "en-us"
+
+TIME_ZONE = "UTC"
+
+USE_I18N = True
+
+USE_TZ = True
+
+
+# Static files (CSS, JavaScript, Images)
+# https://docs.djangoproject.com/en/5.0/howto/static-files/
+
+STATIC_URL = "static/"
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/5.0/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

src/django_docker_demo/urls.py

···
+"""
+URL configuration for django_docker_demo project.
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/5.0/topics/http/urls/
+Examples:
+Function views
+    1. Add an import:  from my_app import views
+    2. Add a URL to urlpatterns:  path('', views.home, name='home')
+Class-based views
+    1. Add an import:  from other_app.views import Home
+    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
+Including another URLconf
+    1. Import the include() function: from django.urls import include, path
+    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
+"""
+
+from django.contrib import admin
+from django.urls import path
+
+urlpatterns = [
+    path("admin/", admin.site.urls),
+]

src/django_docker_demo/wsgi.py

···
+"""
+WSGI config for django_docker_demo project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/5.0/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "django_docker_demo.settings")
+
+application = get_wsgi_application()

src/entrypoint.sh

···
+#!/bin/sh
+
+echo "Running migrations..."
+python manage.py migrate
+
+echo "Starting server..."
+python manage.py runserver 0.0.0.0:8000

src/manage.py

···
+#!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "django_docker_demo.settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == "__main__":
+    main()

src/requirements.txt

···
+django
+psycopg[binary]