Posts from September 2009

Easy Fabric Deployment, Part 1: Git/Mercurial and SSH

September 22, 2009 | code, django | 3 comments

We’re firm believers in the practices described by the Continuous Integration method of software engineering. Among those are:

  • Maintain a code repository
  • Automate the build
  • Automate deployment

We use git for our code repositories and Fabric to automate our build/deployment process. The tiny bit of overhead it take to write out a Fabric script pays off very quickly against the tedium and error-prone practice of manually building/deploying. In building our “fabfile”, we encountered a couple of issues that took a little head-scratching to work out.

Git and SSH Keys

Git, like Mercurial and others, confirms your credentials via an private/public key pair when used over SSH. We use gitosis to manage our private repositories, so managing everyone’s keys isn’t much of an issue. The problem comes when developers need to start pulling the repository on different machines. Our developers all push to a central ...

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Using Django Inside the Tornado Web Server

September 15, 2009 | code, django | 7 comments

Inspired by Eric Florenzano’s talk, Using Django in Non-Standard Ways (slides in PDF) at DjangoCon and the announcement of Tornado (tornadoweb.org), I decided to try building a small application using the Django Form library and Django ORM inside Tornado. The process proved easier than I expected, especially with Russell Keith-Magee being able to provide guidance on demand.

Step 1: Create Your Database

While Russell explained that it should be possible to get commands like syncdb running outside of a traditional Django project, it was outside the scope of this small experiment. Instead, I created a Sqlite database manually. For those of you that have forgotten how to do this, this will get you started:

# sqlite3 dev.db

sqlite> CREATE TABLE message (id integer primary key, subject varchar(30), content varchar(250));
sqlite> insert into message values(1, 'subject', 'cool stuff');
sqlite> SELECT * from message;

Step 2: Write Your ...

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