Forum Discussion
redirect based on monitor status
I would like to have a process where I am able to redirect a user to site down for maintenance page based on status of monitor. My workflow would be using a monitor to check for the content of a fil...
Here is one way to meet this requirement I guess...
The default pool in this case has four nodes, I create a new pool with one node. I then assign a monitor to this node that checks for a file on the host in question. If the admin of that server modifies that file the monitor fails. At this time all four nodes in the default pool for this VIP are online and working as expected. So,in this scenario the following irule seems to work as I want meaning the server admin changes a file to indicate a desire to put the application into maintenance mode.
when HTTP_REQUEST {
if { [LB::status pool appllication-maintenance-pool member 192.168.5.5 443 ] eq "down" } {
log local0.info "Server marked down, maintenance page enabled"
HTTP::redirect "http://example.com/errors/maintenance.html"
} elseif { [active_members [LB::server pool]] == 0 } {
HTTP::redirect "http://example.com/errors/sitedown.html"
} elseif {[HTTP::uri] equals "/" } {
HTTP::redirect "https://[HTTP::host]/default/logon"
}
}
I was hoping to find a way to test for the results from a particular monitor against a node but so far I have not found that functionality.
