in Config.groovy I see this:
// set per-environment serverURL stem for creating absolute links environments { production { grails.serverURL = \"h
here it is:
import org.codehaus.groovy.grails.commons.ConfigurationHolder println ConfigurationHolder.config.grails.serverURL
alternatively, in controllers and tags, apparently this will work:
grailsApplication.config.grails.serverURL
I needed it in BootStrap, so option 1 was what I needed.