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Archie_128388's avatar
Archie_128388
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Jul 25, 2016

iApp works in production, but fails sys load verify.

Hi Everyone, I have an iApp that I wrote on our F5 (Viprion) and it's doing everything I wanted, without issue. I want to upgrade to 12.1 (currently on v12) and when I do a tmsh load sys config ver...
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  • Fred_Slater_856's avatar
    Fred_Slater_856
    Jul 25, 2016

    Archie- Tcl processes quoted strings, allowing for variable substitution. The Tcl validator is attempting to interpret the unpaired brace as a boundary character. A simplified reproduction of the error is this:

     

        sys application template x {
    actions {
        definition {
            implementation {
                set x "{"
            }
            presentation {
            }
        }
    }

     

    root@(big82)(cfg-sync Standalone)(ModuleNotLicensed:Active)(/Common)(tmos) load sys config verify... Syntax Error:(/config/bigip_script.conf at line: 63644) incomplete command

    Escaping should work. Did you escape all of the quoted braces? I tried building an iapp with all of the statements above, and could not get it to fail.

Fred_Slater_856's avatar
Fred_Slater_856
Historic F5 Account
Jul 25, 2016

Archie- Tcl processes quoted strings, allowing for variable substitution. The Tcl validator is attempting to interpret the unpaired brace as a boundary character. A simplified reproduction of the error is this:

 

    sys application template x {
    actions {
        definition {
            implementation {
                set x "{"
            }
            presentation {
            }
        }
    }

 

root@(big82)(cfg-sync Standalone)(ModuleNotLicensed:Active)(/Common)(tmos) load sys config verify... Syntax Error:(/config/bigip_script.conf at line: 63644) incomplete command

Escaping should work. Did you escape all of the quoted braces? I tried building an iapp with all of the statements above, and could not get it to fail.

  • Archie_128388's avatar
    Archie_128388
    Icon for Nimbostratus rankNimbostratus
    Jul 25, 2016

    Thanks Fred - I'm pretty sure I did escape them all out, but I'll go back over everything and re-check. Least I know I'm on the right track..

     

  • Archie_128388's avatar
    Archie_128388
    Icon for Nimbostratus rankNimbostratus
    Jul 25, 2016

    Actually, I have a statement like this:

    set DUMMY "/ltm data-group internal /Common/zscaler-wcf-source-to-tunnel-map { records add { 1.1.1.1/32 { data /Common/$tmsh::app_name.app/wcf-tunnel-pool-"

    Should the / also be escaped with a \ or is it purely { or }

  • Fred_Slater_856's avatar
    Fred_Slater_856
    Historic F5 Account
    Jul 25, 2016

    No, that looks OK. To force a literal within quotes, escape { } because they represent Tcl lists, [ ] because they represent code to be executed and result substituted, and $ because it represents variable substitution. Within braces, you do not have to substitute [ ] or $. You can read more about all that at http://tmml.sourceforge.net/doc/tcl/Tcl.html

     

  • Archie_128388's avatar
    Archie_128388
    Icon for Nimbostratus rankNimbostratus
    Jul 25, 2016

    Well thats embarrassing... I checked my code again and right at the end was this:

    tmsh::modify $::DUMMY$::GRESourceLoopback__diocese-$::GRESourceLoopback__orgid}}}

     

    I had not escaped those last three braces, now it compiles.

    Thanks Fred!

  • Fred_Slater_856's avatar
    Fred_Slater_856
    Historic F5 Account
    Jul 26, 2016

    Happy to help. Good luck.