Forum Discussion

mahanth's avatar
mahanth
Icon for Altostratus rankAltostratus
Aug 17, 2020

Can I run TMSH commands inside an iRule?

I have added:        set NODENAME [HTTP::header value test]  POOLMEMBER_IP=($(tmsh list ltm node $NODENAME | grep "address" | awk '{print $2}'))   1) I am trying to run tmsh commands using/i...
application delivery
iRules
LTM
Dario_Garrido's avatar
Dario_Garrido
Icon for MVP rankMVP
Aug 18, 2020

Hello Mahanth.

I think you are mixing concepts. Take into account this:

  • TMSH are management plane scripts
  • iRule are dataplane scripts.

So, you cannot access a F5 config using iRule commands.

One idea that you could use is to resolv your server hostname using your DNS.

[lindex [RESOLV::lookup $hostname] 0]

REF - https://clouddocs.f5.com/api/irules/resolv__lookup.html

Regards,

Dario.

  • Rene_C_'s avatar
    Rene_C_
    Icon for Nimbostratus rankNimbostratus
    Aug 18, 2020

    Please note that with v15 RESOLV::lookup is deprecated and no longer supported!

    • Dario_Garrido's avatar
      Dario_Garrido
      Icon for MVP rankMVP
      Aug 18, 2020

      https://clouddocs.f5.com/api/irules/RESOLVER__name_lookup.html

      https://clouddocs.f5.com/api/irules/DNSMSG__record.html

    • Rene_C_'s avatar
      Rene_C_
      Icon for Nimbostratus rankNimbostratus
      Aug 18, 2020

      which just includes that it can no longer be written nicely on one line...or 2...or 3... :)

    • JRahm's avatar
      JRahm
      Icon for Admin rankAdmin
      Aug 20, 2020

      deprecated just means it is marked for removal in a future version. As long as it's still available it will be supported.