Forum Discussion

Lucern's avatar
Lucern
Icon for Nimbostratus rankNimbostratus
Oct 05, 2019

Automatic Maintenance (Sorry) Page triggered via monitor

All,

 

I see there are tons of different ways to automatically display a VIP maintenance page when all members of a pool are down. What I'm looking for is a way to automatically display a maintenance page if the response status of a monitor changes for one or all of the members of a pool.

 

What I'm thinking is that I would attach a monitor that would look for a file say: /status.html

 

When everything is normal the file output would be: NORMAL

 

When I want the maintenance page enabled someone would change the file to read: MAINTENANCE

 

Then when the monitor would check it would know to put up the maintenance page, when they change the back to: NORMAL it would take it down.

 

Something to that effect, I just have no idea how I would implement it since I do not have iRule skills! :)

 

Any help is greatly appreciated!

 

application delivery
BIG-IP
iRules
  • Enes_Afsin_Al's avatar
    Enes_Afsin_Al
    Icon for MVP rankMVP
    Oct 06, 2019

    Hi Lucern,

    when HTTP_REQUEST {
    if { [active_members pool_example] < X } {
        log local0. "pool_example: At least one member offline"
        HTTP::respond 503 content "MAINTENANCE"
    }
}

    X = number of members in pool_example

    • Lucern's avatar
      Lucern
      Icon for Nimbostratus rankNimbostratus
      Oct 06, 2019

      Oh wow! That doesn't seem too complicated! I will give that a shot! Thank you so much!