Replace HTTP status response in returned URI.

Iain,

My iRule-foo isn't bad but I wouldn't class myself as an expert. Here's my thoughts.

Create a datagroup as follows:

5xx_codes {
"500" := "/error_500.html", 
"501" := "/error_501.html"
}

And then an irule like this:

when HTTP_RESPONSE {
 if {[HTTP::status] eq 5*} {
 set redirect [class match -value [HTTP::status] equals 5xx_codes]
  HTTP::redirect "http://serveraddress.com/$redirect"
 }
}

This will replace the URI with the relevant one from the datagroup.

Not tested I'm afraid and only a quick, first attempt. Some better iRules than me might be able to improve/correct or even dismiss this attempt 😉

N