How do I configure Tomcat 7 running on an EC2 instance to respond on the main URL, not a subdirectory?

Question

I finally got a simple grails app deployed and running on AWS EC2 instance with Tomcat7. How do I configure Apache and/or Tomcat so the app would be accessible from the following URL:

http://107.20.253.141/

as opposed to how I have to access it now at:

http://107.20.253.141/Grails2Test-0.1/

I didn't have to specify port 8080 either so the two are working together nicely.

Answer 1

Simple way: Rename the directory within webapps (or the .war file) to ROOT (or ROOT.war if you're deploying a .war), replacing the default webapp.

Less simple, more flexible: add a <Context> configuration to server.xml to map a webapp to root - set the docBase to your webapp's location and the path to an empty string, "".