howto configure mod_proxy for apache2, jetty

Question

This is how I have setup my environment, atm. An apache2 instance on port 80. Jetty instance on the same server, on port 8090.

Use-Case:

• When I visit foo.com, I should see the webapp, which is hosted on jetty, port 8090.

• If I put foo.com/blog, I should see the wordpress blog, which is hosted on apache. (I read howtos on the web, and installed it using AMP.)

Below are my various configuration files:

/etc/apache2/mods-enabled/proxy.conf:

ProxyPass / http://foo.com:8090/   << this is the jetty server

ProxyPass /blog http://foo.com/blog

ProxyRequests On
ProxyVia On

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

ProxyPreserveHost On

ProxyStatus On

/etc/apache2/httpd.conf:

LoadModule proxy_module /usr/lib/apache2/modules/mod_proxy.so
LoadModule proxy_balancer_module /usr/lib/apache2/modules/mod_proxy_balancer.so
LoadModule proxy_http_module /usr/lib/apache2/modules/mod_proxy_http.so
LoadModule proxy_ajp_module /usr/lib/apache2/modules/mod_proxy_ajp.so

I have not created any other files, in sites-available or sites-enabled.

Current situation:

• If I goto foo.com, I see the webapp.
• If I goto foo.com/blog, I see a

HTTP ERROR 404

Problem accessing /errors/404.html. Reason:

NOT_FOUND powered by jetty://

• If I comment out the first ProxyPass line, then on foo.com, I only see the homepage, without CSS applied, ie, only text..
• .. and going to foo.com/blog gives me a this error:

The proxy server received an invalid response from an upstream server.

The proxy server could not handle the request GET /blog.

Reason: Error reading from remote server

• I also cannot access /phpmyadmin, giving the same 404 NOT_FOUND error as above.

I am running Debian squeeze on an Amazon EC2 Instance.

Question: Where am I going wrong? What changes should I make in the proxy.conf (or another conf files) to be able to visit the blog?

Solution

If I understand correctly you need to replace this line

ProxyPass /blog http://foo.com/blog

with this line

ProxyPass /blog/ !

This instructs the apache2 server to not to proxy anything that starts with /blog which is I think is what your want.

UPDATE: The official docs is here: http://httpd.apache.org/docs/2.2/mod/mod_proxy.html

Comments

[theTuxRacer]

1. That doesnt work. It still forwards it to jetty. 2. Do u have any list or website, where I can see various types of proxypass

[theTuxRacer]

EDIT: I changed the order of the ProxyPass, and put the / at the end. Now it works. I guess it would just pass through. Thanks for the answer, I had lost all hope, people like you keep the love alive! Happy new year :)

[user649102]

Thanks, you are welcome. Fixed I updated my answer accordingly.