iRules Recipe 4: Static Maintenance Page
The Problem
You wish to provide a static maintenance splash page when all members of a pool serving a Virtual Server are currently down or disabled.
The Configuration
# cat /var/tmp/splash-...
Updated Jun 06, 2023
Version 2.0
VernonWells
Employee
Employee
JG
Cumulonimbus
CumulonimbusAs I understand it, LB_FAILED will not be triggered for existing/persistent user connections, in which case the user will not get the maintenance page in time. I suppose there is always some trade-off and no perfect solution.