Twelve-Factor Prestashop

Prestashop, the Twelve-Factor way: fully managed using Composer and configured using environment variables. This has been heavily inspired by Wordpress 12 Factor

General Concepts and Considerations

The Prestashop installation is fully contained in a shop1 subfolder upon Heroku deployment. A settings.inc.php resides in the root of the project, and uses several different environment variables to control behavior.

The configuration file is kept as generic as possible; on Heroku, add-ons JawsDB (for MySQL) and SendGrid (for E-Mails) are used.

The assumption is that this installation runs behind a load balancer whose X-Forwarded-Proto header value can be trusted; it is used to determine whether the request protocol is HTTPS or not.

Quick Deploy

If you have a Heroku account, you may simply use the following button to deploy this application:

After the deploy, in Heroku's Dashboard under "Settings" for your deployed application, remove the PRESTASHOP_ADMIN_* environment variables.

Manual Deploy

Clone

Clone this repo:

$ git clone https://github.com/absalomedia/prestashop-12-factor
$ cd prestashop-12-factor

If you like, you can locally install dependencies with Composer:

$ composer install

Create Application and Add-Ons

Create a new app and add add-ons for MySQL and E-Mail:

$ heroku create
$ heroku addons:create jawsdb
$ heroku addons:create sendgrid

Deploy

$ git push heroku master

Finalize Installation

This will create tables and set up an admin user:

$ heroku run 'composer prestashop-db-core --name='Prestashop on Heroku' --domain=example.herokuapp.com --db_server=localhost --db_name=prestashop --db_user=admin --db_password=admin [email protected] '

Visit ecommerce store

Navigate to the application's URL, or open your browser the lazy way:

$ heroku open

Updating Prestashop and Plugins

To update all dependencies:

$ composer update

Environment Variables

settings.inc.php will use the following environment variables (if multiple are listed, in order of precedence):

Database Connection

DATABASE_URL or JAWSDB_URL or CLEARDB_DATABASE_URL (format mysql://user:pass@host:port/dbname) for database connections.

SendGrid

SENDGRID_USERNAME and SENDGRID_PASSWORD for SendGrid credentials.