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dexter_22020's avatar
dexter_22020
Icon for Nimbostratus rankNimbostratus
Aug 26, 2010

redirecting links to a maintenance page on 1 virtual server

Hi,

 

 

Is it possible to have 1 virtual server that has multiple maintenance page for different links? For example:

 

www.domain.com/app1 --> gets data to app_server1

 

www.domain.com/app2 --> gets data to app_server2

 

 

If the links doesn't get 200 OK it goes to a specific maintenance page hosted on a different server.

 

For example:

 

www.domain.com/app1 --> maintenance.domain.com/app1_site

 

www.domain.com/app2 --> maintenance.domain.com/app2_site

 

 

Currently I'm using an iRule:

 

 

when LB_FAILED {

 

if { [active_members [LB::server pool]] !=0 } {

 

} else {

 

HTTP::fallback "HTTP://maintenance.domain.com/app1_site" }

 

}

 

 

 

But this works only for the whole virtual instance www.domain.com.

 

 

Thanks in advance for any info.
application delivery
dev
devops
iRules
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Oct 07, 2010
    Hi,

    Something like this should work for you. I'm saving the URI in HTTP_REQUEST as LTM doesn't do this automatically for you. 

    
when HTTP_REQUEST {

   set uri [HTTP::uri]
}

when LB_FAILED {

    A load balancing attempt failed.  Check if the current selected pool has any members.
   if { [active_members [LB::server pool]] == 0 } {

       Check the requested HTTP URI with wildcard support
      switch -glob $uri {
         "/app1*" {
             URI started with /app1
             Save the fallback URI as app1_site
            set uri "app1_site"
         }
         default {
             URI didn't start with /app1
             Save the fallback URI as app2_site
            set uri "app2_site"
         }
      }

       No active members, so use the dynamically set fallback URL
      HTTP::fallback "HTTP://maintenance.domain.com/$uri"
   }
}

    Aaron