Forum Discussion

Altostratus

Feb 20, 2025

Editing iRule for Maintainance Page with image local in F5 Big-IP iFile

Dear Community, I hope this message finds you well. I am reaching out to request your assistance in editing the iRule to redirect users to a maintenance page when all nodes are down. While the iRul...

ifile

ifiles maintenance page

MVP

Feb 20, 2025

Hi Omran,

Below is the approach that I personally use when creating a maintenance page. It involves creating 3 x iFiles on the BIG-IP; one for your maintenance page HTML, and two others for your logo images. You can then use a switch glob statement to get the BIG-IP to display these files.

Steps

1. Grab all of your maintenance page HTML code and save it into a new file named "maintenance.html"

2. Import maintenance page as an iFile:

a) Import file in "System iFile List" via GUI: System > File Management > iFile List > Import

b) Create iFile in "iRule iFile List" via GUI: Local Traffic > iRules > iFile List

3.Create iRule and apply to virtual server

when HTTP_REQUEST {
    if { [active_members [LB::server pool]] == 0 } {
        switch -glob [HTTP::uri] {
            "*Blackboard-LOGO" { HTTP::respond 200 content [ifile get "Blackboard-LOGO"] "Content-Type" "image/png" "Cache-Control"  "no-cache" "Connection" "Close" }
            "*PSAU-LOGO" { HTTP::respond 200 content [ifile get "PSAU-LOGO"] "Content-Type" "image/png" "Cache-Control"  "no-cache" "Connection" "Close" }
            default { HTTP::respond 503 content [ifile get "maintenance.html"] "Content-Type" "text/html" "Cache-Control"  "no-cache" "Connection" "Close" }
        }
    }
}

If you try this, let me know whether or not this works for you.

Cheers,

Michael

Faresnani

Altostratus

Feb 20, 2025

Dear Michael,

Thank you for your support and detailed explanation, unfortunately, it didn't work for me I got the below result

Michael_Saleem
MVP
Feb 20, 2025
Hi Omran,

Apologies, I have updated the the iRule code in my original reply (I was referencing the $URI variable which I did not declare). This should hopefully be fixed now, Please try copying and pasting the iRule again.
- Faresnani
  Altostratus
  Feb 20, 2025
  Hi Michael,
  Thank you for your support and thorough explanation; it has greatly enhanced my understanding of how to use iRule with iFile.
  Initially, I encountered difficulties, likely due to my limited coding experience. However, your expertise and suggestions, combining it with AI, helped resolve the issue. below is the result
  
  I sincerely appreciate your assistance
  
  Regards
  Omran Mohamed
- Faresnani
  Altostratus
  Feb 20, 2025
  Dear Michael,
  Thank you for your support and thorough explanation; it has greatly enhanced my understanding of how to use iRule with iFile.
  Initially, I encountered difficulties, likely due to my limited coding experience. However, your expertise and suggestions, combining it with AI, helped resolve the issue. below is the result
  
  iRule
  =============================================================
  when HTTP_REQUEST {
  if { [active_members [LB::server pool]] == 0 } {
  set uri [HTTP::uri]
  switch -glob $uri {
  "/iFiles/Blackboard-LOGO" {
  HTTP::respond 200 content [ifile get "Blackboard-LOGO"] "Content-Type" "image/png" "Cache-Control" "no-cache" "Connection" "Close"
  }
  "/iFiles/PSAU-LOGO" {
  HTTP::respond 200 content [ifile get "PSAU-LOGO"] "Content-Type" "image/png" "Cache-Control" "no-cache" "Connection" "Close"
  }
  default {
  HTTP::respond 503 content [ifile get "BBApp-maintainance-page.html"] "Content-Type" "text/html" "Cache-Control" "no-cache" "Connection" "Close"
  }
  }
  }
  }
  
  ===================================================================
  
  I sincerely appreciate your assistance.
  
  Regards
  Omran Mohamed