<Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="true">
    <Context docBase="app1" path="/" reloadable="true" source="org.eclipse.jst.jee.server:app1"/>
    <Context docBase="app2" path="/app2" reloadable="true" source="org.eclipse.jst.jee.server:app2"/>
  </Host>

location ~ .(do|jsp)$ {
    #rewrite ^(.*) $1 break;
    proxy_pass              http://127.0.0.1:8080;
    proxy_set_header        Host $http_host;
    proxy_set_header        X-Real-IP $remote_addr;
}

proxy_pass              http://127.0.0.1:8080/app2;