Postgres has a number of extensions which require superuser access for a user to install them, PostGIS being one of them. If you're wanting to install a GeoDjango app, you'll probably encounter an error such as:

$ ./manage.py migrate
Traceback (most recent call last):
  ..
django.db.utils.ProgrammingError: permission denied …

cloud-init is a standard tool in most cloud computing environments as it's an easy way to provide configuration for provisioning server instances. You provide a YAML config file and it'll use the data to configure the server as needed.

Testing cloud-init in a public can be a bit problematic and …

Vagrant is a great tool for creating development environments and testing deployment scripts, especially with Ansible. Testing an Ansible playbook is can be as simple as vagrant up.

If you're working with a lot of Python virtual environments in a wide variety of projects, over time you'll end up with outdated packages in some of the older ones - potentially missing out on new features.

For most of the packages you'll want to keep them at a specific version …

For a fairly easy performance win, and for something which makes dealing with old cached CSS something a thing of the past - enable ManifestStaticFilesStorage.

First of all you'll need to edit settings.py:

# Use manifest static storage
STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.ManifestStaticFilesStorage'

Then you'll need to edit any templates …