IOS XR 4.3.4 - modify TCL e-mail template

[Juan Barquero]

I was testing out an EEM configuration, and cannot find published documentation on one particular step: how to modify TCL templates for e-mails.

In XRv devices I am able to successfully modify the templates by going into the linux filesystem (/pkg/lib/tcl directory) and using vim. On hardware boxes, such as a lab 9K we have running our production 4.3.4, I cannot do the same (I get corrupt file errors) after modifying the template.

These are the templates I speak of:

-rw-r--r-T  1 0         0               185 Apr 08 09:14 email_template_cfg.tm
-rw-r--r-T  1 0         0               147 Apr 08 09:14 email_template_chs.tm
-rw-r--r-T  1 0         0               154 Apr 08 09:14 email_template_cmd.tm
-rw-r--r-T  1 0         0                 8 Apr 02 00:33 email_template_sl.tm
-rw-r--r-T  1 0         0               325 Apr 08 09:14 email_template_sm.tm
-rw-r--r-T  1 0         0               135 Apr 08 09:14 email_template_wd.tm

One of the e-mail templates (email_template_cfg.tm) I am trying to modify:

# more email_template_cfg.tm
Mailservername: $_email_server
From: $_email_from
To: $_email_to
Cc: $_email_cc
Subject: From router $routername: syslog msg

syslog msg: $msg
config commands performed:
$config_cmds

[Joe Clarke · Accepted solution]

You don't need to modify these.  Just create one of your own with the format you want and feed that to the smtp_subst command.

[Juan Barquero]

Thanks. It seems the default directory it pulls from is /pkg/lib/tcl. If you don't specify a linux-style path starting with / it won't find the right file, i.e /disk0:/email_template_sl.tm works (my final configuration), but disk0:/email_template_sl.tm does not.

Thanks Joe!

Juan

[Juan Barquero]

Hey Joe. I'm running into a path problem on IOS now. I have a "flash:/", but this path is not working on my script; any ideas?

lab3560-1#dir
Directory of flash:/
    5  -rwx         147  Jan 14 2017 22:30:06 +00:00  email_template_sl.tcl
    9  -rwx        3715  Jan 14 2017 22:40:14 +00:00  sl_ip-sla-down.tcl

Using "/flash:/email_template_sl.tcl": 

Jan 14 22:38:56.988: %SYS-5-CONFIG_I: Configured from console by  on vty1 (EEM:sl_ip-sla-down.tcl)
Jan 14 22:38:58.196: %HA_EM-6-LOG: sl_ip-sla-down.tcl: cannot open email template file: couldn't open "/flash:/email_template_sl.tcl": No such device
Jan 14 22:38:58.196: %HA_EM-6-LOG: sl_ip-sla-down.tcl:     while executing
Jan 14 22:38:58.196: %HA_EM-6-LOG: sl_ip-sla-down.tcl: "smtp_subst [file join $tcl_library /flash:/email_template_sl.tcl]"

Using "flash:/email_template_sl.tcl":

Jan 14 22:34:16.945: %SYS-5-CONFIG_I: Configured from console by  on vty1 (EEM:sl_ip-sla-down.tcl)
Jan 14 22:34:18.137: %HA_EM-6-LOG: sl_ip-sla-down.tcl: cannot open email template file: couldn't open "tmpsys:/lib/tcl/flash:/email_template_sl.tcl": No such file or directory
Jan 14 22:34:18.137: %HA_EM-6-LOG: sl_ip-sla-down.tcl:     while executing
Jan 14 22:34:18.137: %HA_EM-6-LOG: sl_ip-sla-down.tcl: "smtp_subst [file join $tcl_library flash:/email_template_sl.tcl]"

This is a 3560

cisco WS-C3560-24TS (PowerPC405) 

Cisco IOS Software, C3560 Software (C3560-ADVIPSERVICESK9-M), Version 12.2(46)SE, RELEASE SOFTWARE (fc2)

[Joe Clarke]

IOS doesn't require the leading '/'.  Just use flash:

[Juan Barquero]

Thanks for the help Joe.

In my previous post I actually posted two different paths: "/flash:/email_template_sl.tcl" and "flash:/email_template_sl.tcl"; please see the second where I tried without the leading flash, but similar to XR, it seems like there is a default path for TCL libraries, and that file isn't found either.

Using "flash:/email_template_sl.tcl":

Jan 14 22:34:16.945: %SYS-5-CONFIG_I: Configured from console by  on vty1 (EEM:sl_ip-sla-down.tcl)
Jan 14 22:34:18.137: %HA_EM-6-LOG: sl_ip-sla-down.tcl: cannot open email template file: couldn't open "tmpsys:/lib/tcl/flash:/email_template_sl.tcl": No such file or directory
Jan 14 22:34:18.137: %HA_EM-6-LOG: sl_ip-sla-down.tcl:     while executing
Jan 14 22:34:18.137: %HA_EM-6-LOG: sl_ip-sla-down.tcl: "smtp_subst [file join $tcl_library flash:/email_template_sl.tcl]"

Thanks for reviewing.