Call an iRule from another iRule

Checkout the call function.

For example, I use one to call an HTML page when the server farm is in "maintenance" mode.

 example_include.irule
proc display_page {} {
  HTTP::respond 200 content {
      HTML code to return here

then call it via the irule you have assigned to the VS.

 main.irule
if { conditional_here } {
    call example_include.irule::display_page
}