How can I configure mod_proxy to ProxyPass everything except X VirtualHosts?

Question

Update Thanks to Bill and crb's answers, I believe I have it working.

xxx@host:/etc/apache2/sites-available$ apache2ctl -S
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:80                   is a NameVirtualHost
         default server default (/etc/apache2/sites-enabled/000-default:4)
         port 80 namevhost default (/etc/apache2/sites-enabled/000-default:4)
         port 80 namevhost www.123acme.com (/etc/apache2/sites-enabled/www.123acme.com:4)
Syntax OK

Now www.123acme.com will resolve to the proper VirtualHost served by Apache from /var/www, while everything else if proxied to Jetty.

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I have an Apache2 instance on port 80 and a Jetty app server running on 8080. I would like the Apache instance to server up a VirtualHost, let's say www.acme.com, and to send all other traffic to the Jetty instance.

So far I have sites-available/jetty which contains

ProxyRequests Off

<Proxy *>
  Order deny,allow
  Allow from all
</Proxy>

ProxyPass / http://localhost:8080/
ProxyPreserveHost On
ProxyStatus On

with the goal of first getting everything to proxy to Jetty. This seems to be working okay so far.

So from this point, how would I got about configuring the various VirtualHosts which don't get proxied?

Just to reiterate:

-Typing www.acme.com should resolve to a traditional VirtualHost sitting in /var/www and served by Apache2 from the config in sites-enabled/acme.com

-Typing anything else should get forwarded to the Jetty instance running on 8080

Answer 1

The first vhost in the file (or that is included) is the default, and is where it will fall through to. Thus, just make the first vhost be the proxy, then a second that is www.acme.com.

Answer 2

If you don't have a VirtualHost definition match (based on ServerName/ServerAlias), Apache will serve your request with the first VirtualHost. (See the docs).

Set up a virtual host with a name like 000-first, and put your ProxyPass configuration in that. They are included in directory sort order.

Answer 3

I would go about this by creating two VirtualNost.

The first VirtualHost, the default one, would contain the ProxyPass settings. Based on your file names it looks as if you are running Debian or Ubuntu? In that case we are talking about /etc/apache2/sites-enabled/000-default (aka: /etc/apache2/sites-available/default).

Then the second VirtualHost would specificly specify www.acme.com as its ServerName, and serve up the content of /var/www.