Django example (#43)

Add a Django example
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FelipeVilella 5 years ago committed by GitHub
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@ -41,6 +41,7 @@ with Spring framework and a Postgres database.
- [`VueJS`](https://github.com/docker/awesome-compose/tree/master/vuejs)
- [`Flask`](https://github.com/docker/awesome-compose/tree/master/flask)
- [`PHP`](https://github.com/docker/awesome-compose/tree/master/apache-php)
- [`Django`](https://github.com/docker/awesome-compose/tree/master/django)
## Basic setups for different platforms (not production ready - useful for personal use)
- [`Gitea / PostgreSQL`](https://github.com/docker/awesome-compose/tree/master/gitea-postgres)
- [`Nextcloud / PostgreSQL`](https://github.com/docker/awesome-compose/tree/master/nextcloud-postgres)

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## Compose sample application
### Django application in dev mode
Project structure:
```
.
├── docker-compose.yaml
├── app
   ├── Dockerfile
   ├── requirements.txt
   └── manage.py
```
[_docker-compose.yaml_](docker-compose.yaml)
```
services:
web:
build: app
ports:
- '8000:8000'
```
## Deploy with docker-compose
```
$ docker-compose up -d
Creating network "django_default" with the default driver
Building web
Step 1/6 : FROM python:3.7-alpine
...
...
Status: Downloaded newer image for python:3.7-alpine
Creating django_web_1 ... done
```
## Expected result
Listing containers must show two containers running and the port mapping as below:
```
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
3adaea94142d django_web "python3 manage.py r…" About a minute ago Up About a minute 0.0.0.0:8000->8000/tcp django_web_1
```
After the application starts, navigate to `http://localhost:8000` in your web browser:
Stop and remove the containers
```
$ docker-compose down
```

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FROM python:3.7-alpine
EXPOSE 8000
WORKDIR /app
COPY requirements.txt /app
RUN pip3 install -r requirements.txt
COPY . /app
ENTRYPOINT ["python3"]
CMD ["manage.py", "runserver", "0.0.0.0:8000"]

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"""
Django settings for example project.
Generated by 'django-admin startproject' using Django 1.11.22.
For more information on this file, see
https://docs.djangoproject.com/en/1.11/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.11/ref/settings/
"""
import os
from environs import Env
from dotenv import load_dotenv
from dotenv import find_dotenv
env = Env()
load_dotenv(find_dotenv())
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = env('SECRET_KEY',
'h8+mu_iy6%5j%7+hp**+gsq$nmy!!mjd8z_qkd94@z!%9%!+qn')
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = env.bool('DEBUG', True)
ALLOWED_HOSTS = env.list("ALLOWED_HOSTS", ("localhost", "127.0.0.1"))
# 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 = 'example.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 = 'example.wsgi.application'
# Database
# https://docs.djangoproject.com/en/1.11/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
}
}
# Password validation
# https://docs.djangoproject.com/en/1.11/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/1.11/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/
STATIC_URL = '/static/'

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"""example URL Configuration
The `urlpatterns` list routes URLs to views. For more information please see:
https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
1. Add an import: from my_app import views
2. Add a URL to urlpatterns: url(r'^$', views.home, name='home')
Class-based views
1. Add an import: from other_app.views import Home
2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home')
Including another URLconf
1. Import the include() function: from django.conf.urls import url, include
2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
urlpatterns = [
url(r'^admin/', admin.site.urls),
]

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"""
WSGI config for example 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/1.11/howto/deployment/wsgi/
"""
import os
from django.core.wsgi import get_wsgi_application
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "example.settings")
application = get_wsgi_application()

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#!/usr/bin/env python
import os
import sys
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "example.settings")
try:
from django.core.management import execute_from_command_line
except ImportError:
# The above import may fail for some other reason. Ensure that the
# issue is really that Django is missing to avoid masking other
# exceptions on Python 2.
try:
import django
except ImportError:
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?"
)
raise
execute_from_command_line(sys.argv)

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Django==3.0.5
environs==7.3.1

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version: '3.7'
services:
web:
build: app
ports:
- '8000:8000'
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