Heroku Autoscaler

Runs autoscale requests every minute to the Heroku app of your choice. See Heroku autoscale gem to setup your app for autoscaling.

Setup

1. Create a new Heroku app

heroku create --stack cedar

2. Configure this app with your settings

heroku config:add AUTOSCALE_URL=<your autoscale URL (e.g.: http://www.example.com/autoscale/123456789)>
heroku config:add GMAIL_DOMAIN=<your domain (e.g.: example.com)>
heroku config:add GMAIL_USERNAME=<your email (e.g.: [email protected])>
heroku config:add GMAIL_PASSWORD=<your password (e.g.: foo1234)>
heroku config:add EXC_RECIPIENTS=<recipients for exceptions notification (e.g.: [email protected])>

3. Push this app on Heroku

git push heroku master

4. Don't forget to scale down your web app

heroku scale web=0

5. Then scale up your worker

heroku scale worker=1