Django Deployment Workshop

Jacob Kaplan-Moss (Revolution Systems, LLC), Frank Wiles (Revolution Systems, LLC)
Location: Portland 251
Please note: to attend, your registration must include Tutorials.
Average rating: ****.
(4.29, 14 ratings)

So you’ve written a Django site… now what? Writing the application is just
the beginning; now you’ve got to put it into production! In this hands-on
workshop we’ll walk through the creation of a full Django deployment
environment running on a cluster of (virtual) machines.

This class will introduce students to a wide variety of technologies, including,
Apache, Fabric, nginx, mod_wsgi, memcached, PostgreSQL, pgpool, pg_standby, and

By the end of the class, each student will have created an environment

  • Multiple levels of caching and load balancing.
  • Multiple web application servers.
  • Redundant replicated database servers.

We’ll create this whole stack on virtual machines, and students will be able to
take home a complete copy of all the deployment configuration for future review
at their leisure.

Note: the example application used in this class with be a Django site, and
the class assumes at least a moderate comfort level with Django. However, the
tools and techniques apply just as well to other Python web frameworks, so
users of other tools will likely be able to follow along fairly easily.


Getting started

  • Introducing our example application.
  • Overview of where we’re going.
  • Very brief intro to EC2 and S3.
  • Exercise: run our first VM.

Application server: mod_wsgi

  • What’s an application server?
  • Introducing mod_wsgi
  • Configuring Apache and mod_wsgi
  • Exercise: deploy the application under mod_wsgi.
  • Exercise: initial load test.

Database server: PostgreSQL

  • Why a separate database server?
  • Configuring PostgreSQL
  • Exercise: deploy PostgreSQL.

Introducing Fabric

  • What’s Fabric?
  • Writing fabfiles.
  • Integrating fabfiles into Django applications.
  • Exercise: deploy using Fabric

Multiple web servers

  • Why multiple web servers?
  • “Shared nothing”
  • Dealing with medi
  • Load balancers
  • Introducing nginx
  • Using nginx as a reverse proxy
  • Exercise: deploy onto multiple machines.
  • Exercise: crash a web server.

Caching servers

  • Local caching vs. dedicated caching.
  • Introducing memcached
  • Using memcached with Django.
  • Exercise: deploy with multiple cache servers.

Database connection middleware

  • Why connection middleware?
  • Introducing pgpool.
  • Configuring pg_pool and Django.
  • Exercise: deploy pg_pool

Database redundancy

  • Redundancy strategies
  • Warm standby with pg_standby
  • Exercise: configure warm standby
  • Exercise: fall over to the slave

Final exercise: load testing – how’d we do?

Photo of Jacob Kaplan-Moss

Jacob Kaplan-Moss

Revolution Systems, LLC

Jacob Kaplan-Moss is one of the lead developers and co-creator of Django. Jacob’s an experienced software developer with a focus on web application architecture. He’s a consultant with Revolution Systems, where he helps companies deploy and scale websites using Python and Django. Jacob previously worked for the Lawrence Journal-World, a locally-owned newspaper in Lawrence, Kansas, where he helped develop and eventually open source Django.

Frank Wiles

Revolution Systems, LLC

Consultant, author, developer, and admin. Focusing on performance/scaling of Open Source technologies such as Perl/Python, Apache, Django, and PostgreSQL

Comments on this page are now closed.


Picture of Joshua Timberman
Joshua Timberman
07/23/2010 8:38am PDT

Thanks for this tutorial, it was good to see how Django deployment compares to Rails.

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