84 lines
2.4 KiB
Markdown
84 lines
2.4 KiB
Markdown
# Compose sample application
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## Django application with PostgreSQL support
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Project structure:
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```
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.
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├── docker-compose.yml
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├── Dockerfile
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├── requirements.txt
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├── manage.py
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├── django_app
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├── settings.py
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├── urls.py
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└── wsgi.py
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```
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[docker-compose.yml](https://github.com/docker/awesome-compose/blob/master/django-postgres/docker-compose.yml)
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```yaml
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services:
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web:
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build: .
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ports:
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- 8000:8000
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depends_on:
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- db
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db:
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image: postgres:11
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ports:
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- 5432:5432
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volumes:
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postgres_data:
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```
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## Changes in Django project
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To make your Django project work with PostgreSQL, you need to add the following lines to your settings.py file:
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```python
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DATABASES = {
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'default': {
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'ENGINE': 'django.db.backends.postgresql',
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'NAME': 'postgres',
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'USER': 'postgres',
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'PASSWORD': 'postgres',
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'HOST': 'db',
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'PORT': 5432
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}
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}
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```
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## Deploy with docker-compose
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```
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$ docker-compose up -d
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[+] Building 27.5s (10/10) FINISHED
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=> [internal] load build definition from Dockerfile
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=> => transferring dockerfile: 340B
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...
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...
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[+] Running 4/4
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⠿ Network django-postgres_default Created 0.1s
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⠿ Volume "django-postgres_postgres_data" Created 0.0s
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⠿ Container django-postgres-db-1 Started 2.9s
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⠿ Container django-postgres-web-1 Started
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```
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## Expected result
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Listing containers must showtwo containers running and the port mapping as below:
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```
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$ docker ps
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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9a3b782b1b5a django-postgres_web "python /code/manage…" 12 minutes ago Up 12 minutes 0.0.0.0:8000->8000/tcp django-postgres-web-1
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de27369602f3 postgres:11 "docker-entrypoint.s…" 12 minutes ago Up 12 minutes 0.0.0.0:5432->5432/tcp django-postgres-db-1
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```
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After the application starts, navigate to ```http://localhost:8000``` in your web browser.
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To stop and remove containers, run:
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```
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$ docker-compose down
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```
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