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jmas08's avatar
jmas08
Icon for Nimbostratus rankNimbostratus
Jun 18, 2009

Help Conditional Maint Irule

Hey Guys,

 

During maintenance I want to be able to present a maint page to extenal users, while internal users get the actual message form the server for testing purposes. I have this but it is not working.

 

 

 

when HTTP_REQUEST {

 

 

sets the timer to return client to host URL

 

set stime 10

 

 

Use the Host header value for the responses if it's set. If not, use the VIP address.

 

if {[string length [HTTP::host]]}{

 

set host [HTTP::host]

 

} else {

 

set host [IP::local_addr]

 

}

 

 

Check if the URI is /maintenance

 

switch [HTTP::uri] {

 

"/maintenance" {

 

 

Send an HTTP 200 response with a Javascript meta-refresh pointing to the host using a refresh time

 

HTTP::respond 200 content \

 

"Maintenance\

 

 

Our Apologies

 

 

The application you requested is currently undergoing maintenance. It should be available soon. Please try again later.

 

" "Content-Type" "text/html"

 

return

 

}

 

}

 

If the pool_testLB is down, redirect to the maintenance page

 

if { 0 == [active_members [LB::server pool]] } {

 

HTTP::redirect "https://$host/maintenance"

 

return

 

} else {

 

return

 

}

 

if { (not [ matchclass [IP::client_addr] equals $::Internal-IP ] ) } {

 

HTTP::redirect "http://$host/maintenance"

 

return

 

} else {

 

return

 

}

 

}

 

 

 

Any help is appreciated

 

 

Thanks
application delivery
dev
devops
iRules

4 Replies

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  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Jun 18, 2009
    Did you take a look at the following Samples

     

     

    http://devcentral.f5.com/wiki/default.aspx/iRules/LTMMaintenancePage.html

     

    http://devcentral.f5.com/wiki/default.aspx/iRules/LTMMaintenancePageLite.html

     

    http://devcentral.f5.com/wiki/default.aspx/iRules/LTMMaintenancePageGenerator.html

     

    http://devcentral.f5.com/wiki/default.aspx/iRules/LTMMaintenanceWindow.html

     

    http://devcentral.f5.com/wiki/default.aspx/iRules/LTM_sorry_page_image_when_no_pool_members_available.html

     

     

    Hope this helps

     

     

    CB

     

     

     

     

     

     

     

     

  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jun 19, 2009
    You'll run into problems using a variable (or datagroup) name with a hyphen in TCL:

     

     

    % set ::test-var 10

     

    10

     

     

    % puts $::test-var

     

    can't read "::test": no such variable

     

     

    % puts ${::test-var}

     

    10

     

     

    You could either reference the variable with curly braces or just change it to an underscore.

     

     

    And if the iRule isn't working, try adding logging to it. This should help you trace which code is actually executing. If you get stuck in your troubleshooting, reply here with details on what isn't working.

     

     

    You can post your iRule with the [ code ] [/ code ] tags to preserve indentations.

     

     

    Aaron
  • jmas08's avatar
    jmas08
    Icon for Nimbostratus rankNimbostratus
    Jun 19, 2009
    Everything seems to work except detecting the client ip.

     

     

    Thanks
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jun 19, 2009
    If that's the case, can you change the name of the datagroup from Internal-IP to Internal_IP and retest, or change the iRule to reference the datagroup as ${::Internal-IP}? If you've already done this, can you post your updated iRule and the debug logging showing the issue?

     

     

    Aaron