What Fucking Version is Where!? keeps track of what's deployed, and where.
bundle install
bundle exec ruby wfviw.rb
Add something like following to your deployment script/hook/whatever:
curl -d 'environment=production&name=website&version=v0.2.1' http://localhost:4567/deploy
The following parameters are accepted
Required:
environmentnameversion
Optional:
hostnamedeployed_by