tmsh scripting poool member state

Guys,

 

Apologies in advance for the 'longish' pos (apologies if this is the wrong forum but it seemd appropriate)

 

The customer has two sites A and B, a gtm pool, with a member at each site. For reasons of their own the customer wants only site A

 

active, with a manual failover to B if required (no discussion here please, it's what the customeer wants, so that's what they're

 

getting).

 

To assist I thought I'd provide a 'simple' tmsh script (V11.2.1) which toggled the Active/Passive members - and then place in a bash

 

wrapper

 

e.g. Run the script, if Site A gtm pool member is enabled, disable it and Activate Site B gtm pool member, if Site B is Active when

 

run, disable it and enable Site A.

 

I've read the tmsh wikki (get_status, get_config, get_field_names etc), viewed and tried the LTM poool status example code, replaced

 

code such as:

 

foreach member [tmsh::get''field''value $obj members] (which balked the interpreter)

 

with

 

foreach member [tmsh::get_field_value $obj members]

 

and /ltm with /gtm

 

resulting in:

 

proc script::run {} {

 

set pool_names "sp.test.lan.pool"

 

foreach pn $pool_names {

 

set total 0

 

set usable 0

 

foreach obj [tmsh::get_status /gtm pool $pn detail] {

 

foreach member [tmsh::get_field_value $obj members] {

 

incr total

 

if { [tmsh::get_field_value $member pool-member.status.availability-state] == "available" &&

 

[tmsh::get_field_value $member pool-member.status.enabled-state] == "enabled" } {

 

incr usable

 

}

 

}

 

}

 

if { $usable > 0 && [expr 2 * $usable] >= $total } {

 

puts "up: $pn"

 

} else {

 

puts "dn: $pn"

 

}

 

}

 

}

 

but results in:

 

pool-status.tcl: script failed to complete:

 

can't eval proc: "script::run"

 

field not present: "pool-member.status.availability-state"

 

while executing

 

"tmsh::get_field_value $member pool-member.status.availability-state"

 

(procedure "script::run" line 11)

 

invoked from within

 

"script::run" line:1

 

script did not successfully complete, status:1

 

Given the time this has cost me so far just trying to get the status, I not even thinking about /modify script :(

 

 

Whilst I'm no Dennis Ritchie, I've used a few languages and script engines but this is killing me ... am I missing something?

 

Could anyone tell me if what I'm trying to do is viable or am I just wasting my time?

 

Any assistance would be greatly appreciated.