Django Development With Docker Compose and Machine

Featuring:

• Docker version 18.03.0-ce, build 0520e24302
• docker-compose version 1.20.1, build 5d8c71b2
• Docker Machine version 0.14.0, build 89b8332
• Python 3.6.5

Blog post -> https://realpython.com/blog/python/django-development-with-docker-compose-and-machine/

Install Docker Toolbox on Windows

via -> https://docs.docker.com/toolbox/toolbox_install_windows/

OS X or Windows Instructions

1. Start new machine - docker-machine create -d virtualbox dev;
2. Configure your shell to use the new machine environment - eval $(docker-machine env dev)
3. Build images - docker-compose build
4. Start services - docker-compose up -d
5. Create migrations - docker-compose run --no-deps --rm web python manage.py migrate
6. Collectstatic - docker-compose run --no-deps --rm web python manage.py collectstatic
7. Grab IP - docker-machine ip dev - and view in your browser

Backup/Restore a dockerized PostgreSQL database

via -> https://stackoverflow.com/a/29913462

• Backup your databases

docker exec -t your-db-container pg_dumpall -c -U postgres > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql

• Restore your databases

cat your_dump.sql | docker exec -i your-db-container psql -U postgres

Migrate Django from SQLite to PostgreSQL

via -> https://stackoverflow.com/questions/3034910/whats-the-best-way-to-migrate-a-django-db-from-sqlite-to-mysql

Dump existing data:

docker-compose run --no-deps --rm web python manage.py dumpdata > datadump.json

Change settings.py to Postgres backend. Make sure you can connect on PostgreSQL. Then:

docker-compose run --no-deps --rm web python manage.py migrate --run-syncdb

Run this on Django shell to exclude contentype data

docker-compose run --no-deps --rm web python manage.py shell

>>> from django.contrib.contenttypes.models import ContentType
>>> ContentType.objects.all().delete()
>>> quit()

Finally:

docker-compose run --no-deps --rm web python manage.py loaddata datadump.json