irule for F5 to return a message/string

Lastly, This is how my irule looks like - BUT the VIP is showing down as I do not have a default pool configured on it. Also the vip is displaying a blank webpage when opened instead of sending the http response 200.

 

 

when HTTP_REQUEST {

 

if {[HTTP::uri] contains "/dev"} {

 

pool dev-pool

 

if {[HTTP::uri] contains "/qa"} {

 

pool qa-pool

 

if {[HTTP::uri] contains "/uat"} {

 

pool uat-pool

 

}

 

}

 

}

 

else {

 

HTTP::respond 200 contains "Please use /dev to go to the dev-webserivces-proxies, /qa to go to the qa-webserivces-proxies, /uat to go to the uat-webserivces-proxies"

 

}

 

}

HTTP::respond 200 contains "Please use... should be HTTP::respond 200 content "Please use...

 

 

What type of VS is it? If it's a standard VS it's status should show as unknown, not down, with no Pool associated.

 

Try this:

when HTTP_REQUEST {
switch -glob [string tolower [HTTP::uri]] {
"/dev*" {
pool dev-pool
}
"/qa*" {
pool qa-pool
}
"/uat*" {
pool uat-pool
}
default {
HTTP::respond 200 content "Please use /dev to go to the dev-webserivces-proxies, /qa to go to the qa-webserivces-proxies, /uat to go to the uat-webserivces-proxies" noserver Content-Type "text/html" Connection Close
}
}
}

Also add a default pool.

You're too fast Kevin! Thanks

Here's a slightly more efficient version of your rule;

when HTTP_REQUEST { switch -glob { [string tolower [HTTP::uri]] }{
"/dev*" { pool dev-pool }
"/qa*" { pool qa-pool }
"/uat*" { pool uat-pool }
default { HTTP::respond 200 content "Please use /dev to go to the dev-webserivces-proxies, /qa to go to the qa-webserivces-proxies, /uat to go to the uat-webserivces-proxies" noserver Content-Type "text/html" Connection "Close" } } }

I do not get an option of using contents in the irule editor. (It gives contains,concat and continue) only. Even though i used contents, it`s still displaying a blank page. The vip is a standard one, it`s in red displaying "offline/enabled - children pool members are down".

That's fine, just keep typing, it'll let you enter content (not contents), just tried it myself.

 

 

It shouldn't be showing as down unless a pool is assigned and it's members are down. Please doublecheck (and don't miss the Resources tab)

yeah it worked with "content".. :)

 

thnx

Great news.

Another issue -

 

Its always displaying the default message for response 200 everytime I try different "uris". /dev or /qa..... please advise?

 

 

My pools are up. Network is setup in the following way - My vip is in a diff vlan, and my end servers are in different vlan (dev,qa,uat are in different vlans) and the F5 has a arm/self-ip and a floating ip in all these vlans.

If you're using either of the two examples given, there's a good chance your URI isn't matching one of the conditions. Please add the following line directly after the 'when HTTP_REQUEST' line and report back the logs from /var/log/ltm:

 

 

log local0. "URI = [HTTP::uri]"