LTM Maintenance Page Lite

Problem this snippet solves: Use the LTM as a webserver as a lite version of a maintenance page. In this case, it returns a maintenance page with text to return when the pool members are not availab...
Published Mar 18, 2015
Version 1.0
application delivery
devops
iRules
LTM
CarloS1's avatar
CarloS1
Icon for Nimbostratus rankNimbostratus
Nov 23, 2017

Hi,

why should I add prefix /maintenance? Why shoukd I make redirect HTTP::redirect "/maintenance"?

Could iRule looks like this below, without redirection. What benefits are when I make this redirection.

when HTTP_REQUEST {

if {[active_members [LB::server pool]] < 1} {

  switch [string tolower [HTTP::uri]] {
         "/style.css" {
    HTTP::respond 200 content [ifile get "style"] "Content-Type" "text/css"
    } 
    default {
        HTTP::respond 200 content [ifile get "index"] "Content-Type" "text/html"
    }
 }

} }