I’ve created a project on GitHub to make it easy to install WordPress onto Heroku.
Plugins and themes can be specified and installed via the composer.json file.

The seven steps are:

git clone https://github.com/andypalmer/easy-wordpress.git my-new-wordpress
cd my-new-wordpress
heroku apps:create my-new-wordpress
heroku addons:add cleardb:ignite
heroku config:add DATABASE_URL=`heroku config:get CLEARDB_DATABASE_URL`
git push heroku master
heroku open


There are a couple of other tweaks required to allow uploading assets, but that’s essentially it.

Happy blogging