Maintenance page with iFile problem

Moinul,

There are a couple of examples available in the irule section.

But this should do the trick:

when HTTP_REQUEST {
if { [active_members [LB::server pool]] < 1 } { 
if { [HTTP::uri] eq "/secure-bd.css" } {
    HTTP::respond 200 content [ifile get secure-bd.css] "Content-Type" "text/css"}
if { [HTTP::uri] eq "/404-bd.jpg" } {
    HTTP::respond 200 content [ifile get 404-bd.jpg] "Content-Type" "image/jpg"}
if { [HTTP::uri] eq "/bd-logo.png} {
    HTTP::respond 200 content [ifile get bd-logo.png] "Content-Type" "image/png"}
} else { HTTP::respond 200 content [ifile get secure-bd-branded.html] "Content-Type" "text/html" "Cache-Control" "no-cache,no-store,must-revalidate" "Expires" "Fri, 01 Jan 1990 00:00:00 GMT"}
}}

I've added in the headers for cache as I had issues with content being cached on a proxy.