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Martin_Williams's avatar
Martin_Williams
Icon for Nimbostratus rankNimbostratus
Jul 01, 2015

Maintenance Page using multiple ifiles

Hi,

 

I am trying to set up an irule maintenance page using ifiles but am having difficulty getting the images to work. I need to have different pages for different domains e.g

 

when LB_FAILED { if { [string tolower [HTTP::host]] contains "tesdomain1.ie" } { HTTP::respond 200 content [ifile get cz-index.html] } elseif { ( [string tolower [HTTP::host]] contains "testdoamin2.ie" ) } { HTTP::respond 200 content [ifile get at-ie-index.html] } } This works but the images referenced in the html and created as ifiles are not seen. Have played around with the irule but no joy

 

If I use the following irule for all domains it works, but I need to show different, so not quite sure how to proceed?

 

when HTTP_REQUEST { if {[active_members [LB::server pool]] < 1} { switch [HTTP::uri] { "/" { HTTP::respond 200 content [ifile get "at-test-index.html"] } "/at-caravans-logo.png" { HTTP::respond 200 content [ifile get "at-test-logo.png"] } } } }

 

application delivery
availability
BIG-IP Access Policy Manager (APM)
deployment
devops
iRules
LTM
security
  • THi's avatar
    THi
    Icon for Nimbostratus rankNimbostratus
    Jul 01, 2015

    The images cause a new http get request, therefore you do not see them in the response created by the LB_FAILED event.

     

    Either catch the image request and respond separately in HTTP_REQUEST event...

     

    set css xxx-css
set logo xxx-logo
...
switch [HTTP::uri] {
        "/xxx.css" {
            HTTP::respond 200 content [ifile get $css] "Content-Type" "text/css; charset=utf-8"
        }
        "/xxx.png" {
            HTTP::respond 200 content [ifile get $logo] "Content-Type" "image/png"
        }
}

    Also try adding Content-Type image/png header. The code works with us (11.5.1 sw). We put the iFile names into variables as they were needed elsewhere in the iRule logic.

     

    ... or you do it inline in the LB_FAILED by b64 encoding into response html, something like:

     

    set img [b64encode [ifile get $logo]]
...