change your database.yml to fit your postgresql settings
and of course have a working database already set up; wagn does dropping, creating, loading schema so your database user should be granted createdb privileges
bundle exec rake wagn:create and you should see the db setting up
...with e.g. a virtual host: <VirtualHost *:80> ServerName wagn.domain.con # !!! Be sure to point DocumentRoot to 'public'! DocumentRoot /var/www/wagn/public <Directory /var/www/wagn/public> # This relaxes Apache security settings. AllowOverride all # MultiViews must be turned off. Options -MultiViews </Directory> </VirtualHost>