Projecto django con postgres db

.env.dev.example

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+SECRET_KEY=django-insecure-qsms=qciyyx4mm8!e=a^s8@q%c50#7g&!s+(d$7wh3rd2*h$dq
+DEBUG=1
+DJANGO_ALLOWED_HOSTS=localhost 127.0.0.1 [::1]

.env.example

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+# General
+PUID=1000
+PGID=1000
+# Postgres
+POSTGRES_DB=postgres
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres
+# Django
+DJANGO_PORT=8000

.gitignore

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+.env
+.env.dev
+data/

app/Dockerfile

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+# syntax=docker/dockerfile:1
+FROM python:3
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+WORKDIR /usr/src/app
+
+# install system dependencies
+RUN apt-get update && apt-get install -y netcat-traditional
+
+# install python dependencies
+COPY requirements.txt .
+RUN pip install --upgrade pip
+RUN pip install -r requirements.txt
+
+# copy entrypoint.sh
+COPY ./entrypoint.sh .
+RUN sed -i 's/\r$//g' /usr/src/app/entrypoint.sh
+RUN chmod +x /usr/src/app/entrypoint.sh
+
+
+# copy project
+COPY . .
+
+# run entrypoint.sh
+ENTRYPOINT ["/usr/src/app/entrypoint.sh"]

app/config/asgi.py

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+"""
+ASGI config for config 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/5.1/howto/deployment/asgi/
+"""
+
+import os
+
+from django.core.asgi import get_asgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+
+application = get_asgi_application()

app/config/settings.py

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+"""
+Django settings for config project.
+
+Generated by 'django-admin startproject' using Django 5.1.7.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/5.1/topics/settings/
+
+For the full list of settings and their values, see
+https://docs.djangoproject.com/en/5.1/ref/settings/
+"""
+
+import os
+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/5.1/howto/deployment/checklist/
+
+# SECURITY WARNING: keep the secret key used in production secret!
+SECRET_KEY = os.environ.get("SECRET_KEY")
+
+# SECURITY WARNING: don't run with debug turned on in production!
+DEBUG = bool(os.environ.get("DEBUG", default=0))
+
+ALLOWED_HOSTS = os.environ.get("DJANGO_ALLOWED_HOSTS").split(" ")
+
+# Application definition
+
+INSTALLED_APPS = [
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django.contrib.staticfiles',
+]
+
+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 = 'config.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 = 'config.wsgi.application'
+
+
+# Database
+# https://docs.djangoproject.com/en/5.1/ref/settings/#databases
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.postgresql',
+        'NAME': os.environ.get('POSTGRES_NAME'),
+        'USER': os.environ.get('POSTGRES_USER'),
+        'PASSWORD': os.environ.get('POSTGRES_PASSWORD'),
+        'HOST': 'db',
+        'PORT': 5432,
+    }
+}
+
+
+# Password validation
+# https://docs.djangoproject.com/en/5.1/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/5.1/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/5.1/howto/static-files/
+
+STATIC_URL = 'static/'
+
+# Default primary key field type
+# https://docs.djangoproject.com/en/5.1/ref/settings/#default-auto-field
+
+DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

app/config/urls.py

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+"""
+URL configuration for config project.
+
+The `urlpatterns` list routes URLs to views. For more information please see:
+    https://docs.djangoproject.com/en/5.1/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),
+]

app/config/wsgi.py

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+"""
+WSGI config for config 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/5.1/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'config.settings')
+
+application = get_wsgi_application()

app/entrypoint.sh

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+#!/bin/sh
+
+if [ "$DATABASE" = "postgres" ]
+then
+    echo "Waiting for postgres..."
+
+    while ! nc -z $SQL_HOST $SQL_PORT; do
+      sleep 0.1
+    done
+
+    echo "PostgreSQL started"
+fi
+
+python manage.py flush --no-input
+python manage.py migrate
+
+exec "$@"

app/manage.py

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+#!/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', 'config.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()

app/pedidos/admin.py

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

app/pedidos/apps.py

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+from django.apps import AppConfig
+
+
+class PedidosConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'pedidos'

app/pedidos/models.py

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+from django.db import models
+
+# Create your models here.

app/pedidos/tests.py

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

app/pedidos/views.py

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

app/requirements.txt

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+Django>=5.1.7
+psycopg2>=2.9.10

docker-compose.yml

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+services:
+  db:
+    image: postgres
+    volumes:
+      - ./data/db:/var/lib/postgresql/data
+    environment:
+      - POSTGRES_DB=${POSTGRES_DB}
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+  web:
+    build: ./app
+    command: python manage.py runserver 0.0.0.0:8000
+    volumes:
+      - ./app/:/usr/src/app/
+    ports:
+      - "${DJANGO_PORT}:8000"
+    environment:
+      - POSTGRES_NAME=${POSTGRES_DB}
+      - POSTGRES_USER=${POSTGRES_USER}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
+    depends_on:
+      - db
+    env_file:
+      - ./.env.dev

readme.md

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+```
+docker compose up -d
+```
+```
+docker compose exec web python manage.py migrate --noinput
+```
+```
+docker-compose exec db psql --username=hello_django --dbname=hello_django_dev
+```