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sandy16's avatar
sandy16
Icon for Altostratus rankAltostratus
Nov 07, 2012

irule for F5 to return a message/string

Folks,

 

i need to do load-balancing based on the "uri" in the url. I have this working BUT need the F5 to return a http code/message like"Use /dev or /qa to go to your environments" if no uri is matched. I don`t need to do a re-direct to another webserver as I do not have one that can send the same message.

 

Have the folowing irule -

 

 

when HTTP_REQUEST {

 

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

 

pool dev-suite-pool

 

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

 

pool qa-suite-pool

 

 

} else {

 

*****test message: please use /dev, or /qa or /uat to go to your respective environments"

 

}

 

}

 

 

Please advise?

 

application delivery
dev
devops
iRules

23 Replies

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  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Nov 09, 2012
    OK, does the VS have a HTTP Profile assigned? I'm sure it does.

    You may want to try Kevin's version with the commands on new lines. Or perhaps you need to exit the rule asap; 

    
when HTTP_REQUEST {
    switch -glob [string tolower [HTTP::uri]] {
        "/dev*" {
            pool dev-pool
             return
        }
        "/qa*" {
            pool qa-pool
             return
        }
        "/uat*" {
            pool uat-pool
             return
        }
        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
        }
    }
}
  • sandy16's avatar
    sandy16
    Icon for Altostratus rankAltostratus
    Nov 10, 2012
    I have exactly the above irule now on the vip, this is what i get in the ltm logs :-

     

     

    just the url-

     

    Nov 10 09:55:19 tmm1 info tmm1[9232]: Rule /Common/new-services : URI = /

     

     

    with the uris-

     

    Nov 10 09:54:32 tmm info tmm[9231]: Rule /Common/new-services : URI = /qa/

     

    Nov 10 09:54:37 tmm1 info tmm1[9232]: Rule /Common/new-services : URI = /dev

     

     

    So its seems to be matching the uris, but not taking the right action.

     

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Nov 10, 2012
    The logging Kevin suggested won't log the action, just the URI. If you want to log the actions, add something like log local.0 "Selected XXX-pool" before each 'return' command and log local0. "Responded with content" after the HTTP::respond command.