how to do auto redirection of a tomcat application

[Paul Graydon]

On 2/23/2011 7:36 PM, Tapas Mishra wrote:
> On Thu, Feb 24, 2011 at 3:53 AM, Paul Graydon<paul at paulgraydon.co.uk>  wrote:
>> On 02/23/2011 11:30 AM, Tapas Mishra wrote:
>>> I have a site http://social.openitup.in
>>> right now what you are seeing is a default Tomcat6 page.
>>> I am using mod_ajp as a front end and Apache vhost configuration for same
>>> is
>>>
>>> <VirtualHost *:80>
>>>
>>>          ServerName social.openitup.in
>>>          ServerAdmin webmaster at localhost
>>>
>>>          ProxyRequests off
>>>          <Proxy *>
>>>          Order deny,allow
>>>          Allow from all
>>>          </Proxy>
>>>          ProxyPreserveHost On
>>>
>>>          ProxyPass / ajp://192.168.1.19:8009/
>>>          ProxyPassReverse / ajp://192.168.1.19:8009/
>>>
>>>
>>> </VirtualHost>
>>>
>>>
>>>
>>>
>>> How ever I have an application running on it
>>> http://social.openitup.in/olat
>>> what I want to do is when some one opens
>>> http://social.openitup.in
>>> then rather than seeing Tomcat6 home page from
>>> /var/lib/tomcat6/webapps/ROOT/index.html
>>> the person is  redirected to olat application which is in
>>> /var/lib/tomcat6/webapps/olat
>>> how can this be achived?
>>>
>>> The machine where OLAT is and where the above Reverse Proxy
>>> configuration is are physically different machines.
>>>
>> Hi Tapas,
>>
>> We're using straight http, rather than ajp for proxying to our tomcat
>> servers (though I'm hoping to transition at some stage),
> Ok so the rule which you mentioned
>>     What we tend to do is use a rewrite:
>>
>> RewriteEngine On
>> RewriteRule ^/$ /olat/ [redirect,last]
>>
>> The have our proxypass lines:
>>
>> ProxyPass /olat ajp://192.168.1.19:8009/olat
>> ProxyPassReverse /olat ajp://192.168.1.19:8009/olat
>>
> you use RewriteRule in combination with ProxyPass.
> I just want to know this for sake of understanding.
> I solved the current problem by renaming the application in webapps
> /var/lib/tomcat6/webapp/olat to
> /var/lib/tomcat6/webapp/ROOT
> and it worked you can check http://olat.openitup.in
> let me know if you use ReWriteRule in combination with ProxyPass directive.
Yes we do, we use both rules in combination on probably most of the 
subdomains we host (approximately 70-80 applications under 20-30 subdomains)

A few of our apps are named ROOT to allow them to work from /, but in 
most cases we'll have multiple apps for a particular subdomain so they 
have distinctive names.  RewriteRule is usually used in combination with 
ProxyPass to direct traffic appropriately if they come in at the wrong 
point.

Paul

Paul