Rookie needs help. iRule url redirection

try this:

rule URI_switch { 
   when HTTP_REQUEST { 
     set uri_info [HTTP::uri] 
     if { $uri_info contains "tsa_test" or \ 
          $uri_info contains "tsa_train" } { 
       use pool pool_two 
     } elseif { $uri_info contains "tsa" } { 
         use pool pool_one 
     } 
     else { 
       use pool default 
     } 
   } 
 }

Thanks, citizen_elah. I am creating this rule thru the BigIP web admin interface. It is working but I had to strip out the section for using pool default. It was complaining that this was undefined when trying to update.

 

 

Another question. When typing the https://url/tsa in my browser I have to end the url with another slash (/) or it doesn't find the web page. If I go directly to the web server (which is just using http) I do not need to end the url with a slash. Is there a way to setup the bigip so that I don't need this / at the end of the url.

 

 

Thanks.

A trailing slash should not be required. I was not able to reproduce the problem with 9.0.5. What version are you using?

I am running version 9.0.4.

Is this an iRule problem? Did you include the final else in citizen_elah's example? Do you experience the problem if you set the pool on the virtual server to pool_one and remove the rule? What do the logs on the webserver show? Is BIG-IP truncating the URI somehow? Thanks.

I don't think this is a rule problem. Before the rule was in place, I still needed the / at the end of the url to get to the web page. I dod not include the final else condition because when completing the rule, it complained that this was undefined. I have also noticed that goiing to other secure sites that are unrelated to this in any way I have had to use the / at the end of the url.

Is the problem with tsa only, or also with tsa_train and tsa_test?

Alternately, I wonder if you could check for the trailing "/" in the URI, and if it is not present, add it. This assumes that there is no trailing information after the "/", I defer to the experts if that is the case.

rule URI_switch { 
     when HTTP_REQUEST { 
       set uri_info [HTTP::uri] 
       if {not {$uri_info ends_with "/"} } { 
          append uri_info "/" 
       } 
       if { $uri_info contains "tsa_test" or \ 
            $uri_info contains "tsa_train" } { 
         use pool pool_two 
       } elseif { $uri_info contains "tsa" } { 
           use pool pool_one 
       } 
       else { 
         use pool default 
       } 
     } 
   }

citizen, I tried the code to add the / but that caused the pages not to be available whether or not I added the / to the end of the url.

 

 

It does need the trailing / on tsa and tsa_test and tsa_train.

Maybe you should back up and do some diagnostic logging at this point:

rule URI_switch { 
       when HTTP_REQUEST { 
         set uri_info [HTTP::uri] 
         log "Variable uri_info contents: $uri_info" 
         if {not {$uri_info ends_with "/"} } { 
            append uri_info "/" 
            log "Variable uri_info contents w\/ "\/" appended:" 
         }

Also, check to see if the "/" is a special character in TCL, that might be a problem.

Don't forget to check /var/log/ltm as run-time errors are reported there. You are likely getting a run-time error when the page doesn't load. (log also outputs it's messages to /var/log/ltm).