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Anton_Koldaev_2's avatar
Anton_Koldaev_2
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Feb 13, 2016
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How to read class value by key?

BigIP LTM 11.5.1 I have a data group type string. And I have key-value pairs inside. Data group name: test_dg String Records: key1 := value1 key2 := value2 How can I read "test[key...
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  • VernonWells's avatar
    VernonWells
    Feb 13, 2016
    set first_value [class lookup key1 test_dg]
set second_value [class lookup key2 test_dg]

    As the documentation states, this is equivalent to:

    set first_value [class match -value key2 equals test_dg]
set second_value [class match -value key2 equals test_dg]
VernonWells's avatar
VernonWells
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To demonstrate, I did the following:

 tmsh list ltm data-group internal test
  ltm data-group internal test records { abc { data 123 } def { data 456 } } type string
 tmsh list ltm rule test01 
  ltm rule test01 {
      when HTTP_REQUEST {
          set u [findstr [HTTP::path] / 1]
          set v [class lookup $u test]

          log local0. "With request-uri path = ([HTTP::path]), first element = ($u), value = ($v)"
      }
  }

A few log entries:

 Rule /Common/test01 : With request-uri path = (/abc), first element = (abc), value = (123)
 Rule /Common/test01 : With request-uri path = (/def), first element = (def), value = (456)
 Rule /Common/test01 : With request-uri path = (/hij), first element = (hij), value = ()
Anton_Koldaev_2's avatar
Anton_Koldaev_2
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Feb 13, 2016
Thanks. That's very helpful.