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Karlsen_58024's avatar
Karlsen_58024
Icon for Nimbostratus rankNimbostratus
Oct 03, 2012

iRule hitcount logging

Hello DevCentral,

 

I have an iRule for redirection based on host headers. I want to make a hit count on each host header. Is this possible?

 

 

when HTTP_REQUEST {

 

if { [HTTP::host] contains "example.com," } {

 

HTTP::redirect "https://www,.secureexample.com[HTTP::uri]"

 

}

 

if { [HTTP::host] contains "example.no" } {

 

HTTP::redirect "https://www.secureexample.no[HTTP::uri]"

 

}

 

if { [HTTP::host] contains "example.dk" } {

 

HTTP::redirect "https://www.secureexample.dk[HTTP::uri]"

 

}

 

}

 

 

I was thinking that I could use something like:

 

log local0. "Number of hits on [HTTP::host]:[HTTP::request_num]".

 

 

Any ideas on how I could implement it? All I want to know is how many hits each host header gets.

 

 

Regards,

 

 

Martin Karlsen

 

application delivery
dev
devops
iRules
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Oct 03, 2012
    statistics profile

    e.g. 

    root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.19.252:80
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http { }
        mystats { }
        tcp { }
    }
    rules {
        myrule
    }
    snat automap
    vlans-disabled
}
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm profile statistics mystats
ltm profile statistics mystats {
    app-service none
    field1 example.com
    field2 example.no
    field3 example.dk
}
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm rule myrule
ltm rule myrule {
    when HTTP_REQUEST {
   if { [HTTP::host] contains "example.com" }  {
      STATS::incr mystats example.com 1
      HTTP::redirect "https://www.secureexample.com[HTTP::uri]"
   }
   if { [HTTP::host] contains "example.no" } {
      STATS::incr mystats example.no 1
      HTTP::redirect "https://www.secureexample.no[HTTP::uri]"
   }
   if { [HTTP::host] contains "example.dk" } {
          STATS::incr mystats example.dk 1
      HTTP::redirect "https://www.secureexample.dk[HTTP::uri]"
   }
}
}

root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) show ltm profile statistics mystats

--------------------------------
Ltm::Profile Statistics: mystats
--------------------------------
example.com  7
example.dk   1
example.no   4
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Oct 03, 2012
    istats

    Introduction to iStats Part 1: Overview by Colin

    https://devcentral.f5.com/Tutorials/TechTips/tabid/63/articleType/ArticleView/articleId/1088514/Introduction-to-iStats-Part-1-Overview.aspx

    e.g. 

    root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm virtual bar
ltm virtual bar {
    destination 172.28.19.252:80
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http { }
        tcp { }
    }
    rules {
        myrule
    }
    snat automap
    vlans-disabled
}
root@(ve11a)(cfg-sync Changes Pending)(Active)(/Common)(tmos) list ltm rule myrule
ltm rule myrule {
    when HTTP_REQUEST {
   ISTATS::incr "ltm.virtual /Common/bar counter [HTTP::host]" 1
   if { [HTTP::host] contains "example.com" }  {
      HTTP::redirect "https://www.secureexample.com[HTTP::uri]"
   }
   if { [HTTP::host] contains "example.no" } {
      HTTP::redirect "https://www.secureexample.no[HTTP::uri]"
   }
   if { [HTTP::host] contains "example.dk" } {
      HTTP::redirect "https://www.secureexample.dk[HTTP::uri]"
   }
}
}

[root@ve11a:Active:Changes Pending] config  tmsh show ltm virtual bar

---------------------------------------------------------
Ltm::Virtual Server: bar
---------------------------------------------------------
Status
  Availability     : unknown
  State            : enabled
  Reason           : The children pool member(s) either don't have service checking enabled, or service check results are not available yet
  CMP              : enabled
  CMP Mode         : all-cpus
  Destination      : 172.28.19.252:80

Traffic                    ClientSide  Ephemeral  General
  Bits In                       30.4K          0        -
  Bits Out                      21.8K          0        -
  Packets In                       48          0        -
  Packets Out                      32          0        -
  Current Connections               0          0        -
  Maximum Connections               1          0        -
  Total Connections                 8          0        -
  Min Conn Duration/msec            -          -        3
  Max Conn Duration/msec            -          -        5
  Mean Conn Duration/msec           -          -        4
  Total Requests                    -          -        0

CPU Usage Ratio (%)
  Last 5 Seconds                    0
  Last 1 Minute                     0
  Last 5 Minutes                    0

User-defined        Value
  example.com       1
  example.dk        2
  example.no        1
  test.example.com  1
  www.example.com   1
  www.example.dk    1
  www.example.no    1