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tag: 20121212141326…
README.md

make.mozilla.org

This app is built using Mozilla's Playdoh.

Deployment instructions are towards the bottom of this file.

Local development

We're using PostGIS + GeoDjango for the DB, so you'll also need the following installed

  • Postgresql 8.4 +
  • PostGIS >= 1.4 && < 2.0
  • Geos
  • Proj4
  • GDAL

Mac OS X

With Homebrew, installing PostGIS and GDAL will install all you need:

brew update
brew install postgis gdal

Ubuntu

For Ubuntu 10.04, see the information in our Puppet config (./puppet/manifests/dev.pp and the classes in ./puppet/manifests/classes)

For Ubuntu release >= 11.10, this should work:

sudo apt-get install binutils gdal-bin libproj-dev postgresql-9.1-postgis \
     postgresql-server-dev-9.1

Once those are installed, then pip install -r requirements/compiled.txt should work as expected.

GeoDjango

GeoDjango is installed as part of Django. You need to take a look at the installation instructions at [https://docs.djangoproject.com/en/1.3/ref/contrib/gis/install/#post-installation] to get PostGIS configured properly with Django. Ubuntu's version ships with a postgis-template generation script, which you can see used in ./puppet/manifests/classes/postgis.pp

Deployment

We're making heavy use of Fabric and Puppet to automate deployment. Deployment has been tested on a Ubuntu 10.04 box, and puppet recipes will likely fail on later versions of Ubuntu (or any Debian version), and certainly would on RHEL / CentOS systems.

Note that we're using Puppet 0.25, because that's what comes with Ubuntu 10.04. It's old, you'll find a lot of newer recipes and examples out on the web won't run unmodified on it.

Prequisites

  • A machine set up for local development

  • A user with sudo access on a Ubuntu 10.04 box with openssh-server installed and running. No other pre-puppet dependencies.

  • The machine you want to deploy to listed in the hosts dict in fabfile.py

  • The SSH pubkey of any developers who should have deploy access contained in puppet/files/deploy_keys (this will become the .ssh/authorized_keys file for the server user the app runs as.

Initial setup

fab puppet.setup
fab puppet.apply
fab deploy.cold

fab puppet.setup installs the Puppet packages on the box. fab puppet.apply uploads and applies the current puppet recipes. Note that this is not done from Git, but from the deployers working directory, so be careful about uncommitted changes. fab deploy.cold Actually deploys the app, performing first-run setup and running DB migrations.

If you're not deploying to the default server (you can change the default on line 21 of fabfile.py) then you need to specify which set of hosts to use:

TO=production fab puppet.setup
TO=production fab puppet.apply
TO=production fab deploy.cold

If your sudoer's username on the box you're deploying too doesn't match your local username:

fab -u remote_username puppet.setup

If you need to do both the above mods:

TO=production fab -u remote_username puppet.setup

Updates to Puppet

fab puppet.apply

Provided there are no bugs in the puppet recipes, running fab puppet.apply should only do something if there's a change to apply - it's safe to run multiple times, and even if there are no new changes.

Regular deployment

fab deploy

This doesn't run the Migrations. To deploy and run migrations run:

fab deploy_with_migrations

Notes on the Puppet setup

The main Puppet manifest is puppet/manifests/dev.pp, which in turn includes all the rest of the resources in a single class, then includes that class - puppet then tries to make sure all the resources described in puppet/manifests/classes/*.pp are included and brought up to date. If you need to add more things to the Puppet recipes, add them in a file in puppet/manifests/classes and then put an include line into puppet/manifests/dev.pp

E.g., add resources to puppet/manifests/classes/my_file.pp and then, in dev.pp:

class dev {
  include app_users
  ...
  include my_file
}

I don't think this is an entirely standard way of doing things, but it works well with a single-machine single-OS deployment.

playdoh: about the framework

Mozilla's Playdoh is a web application template based on Django.

Patches are welcome! Feel free to fork and contribute to this project on github.

Full Playdoh documentation is available as well.

License

This software is licensed under the New BSD License. For more information, read the file LICENSE.

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