vlucas/gist:6003622

Created July 15, 2013 21:21

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Process for running migrations on a Heroku Rails app

Raw

Assumtions: Git repo cloned from remote named "production" (hence the "-r production" flags)

Pane 1:

heroku logs -t -r production

Pane 2:

heroku maintenance:on -r production
heroku ps:scale web=0 -r production

Watch the logs in Pane 1 and make sure requests stop coming in

heroku run rake db:migrate -r production

Make sure everything went well (no errors in either pane)

heroku ps:scale web=2 -r production

Watch the logs in Pane 1 until both apps have started

heroku maintenance:off -r production

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