Velocity Template Catalyst Center Boolean

[eberzani]

Hello everyone! 

I am looking for some help in having CAT-C recognize the Boolean in my code. Now it can be true that I may have wrong expectations and if I do I wish to be corrected.

• I have Cisco Prime Infrastructure and we will be migrating soon to Cisco Catalyst Center.
• We have migrated most of the Network Devices and Sites and now we want to migrate the Templates. 
• Most of the templates were recreated and Cat-C managed to find a way to get the attributes too when I copy pasted the code

However I am stuck on one template: 

neighbor ${ORG}-VPS prefix-list ${TSO}-VPS-IN in
 neighbor ${ORG}-VPS prefix-list VPS-OUT out
#if ( $Role eq "true" )
 neighbor ${ORG}-VPS route-map AS PREP out
#else
#end
neighbor $bgp_neig peer-group ${ORG}-VPS

In Cisco Prime the above template gives me a checkbox that, when I check it, it will add the configuration on a secondary device. 
What I am looking for is how to do the same in Cat-C ? 
Checking some guides online I managed to modify the code to this: 

#if ( $Role == "true" )

 neighbor ${ORG}-VPS route-map AS PREP out

#end

However all I see is no DATA TYPE as Boolean or Cat-C is not recognizing the code as such. 

Any thoughts? 

Regards, 
Eugen

[gchellia]

Hi,

Currently Catalyst Center does not support Boolean variable for VTL. You can easily get the desired configurations with the below VTL script.

You can define a variable called "ROLE" and pass the value as "PRIMARY" or "SECONDARY" and get the desired configs.

Here is the VTL script.

hostname $hostname

router bgp $AS_NUM

#if($ROLES == "PRIMARY")
neighbor ${ORG}-VPS prefix-list TSO-VPS-IN in
neighbor ${ORG}-VPS prefix-list VPS-OUT out

#elseif($ROLES == "SECONDARY")
neighbor ${ORG}-VPS prefix-list TSO-VPS-IN in
neighbor ${ORG}-VPS prefix-list VPS-OUT out
neighbor ${ORG}-VPS route-map AS PREP out

#end

Did a quick test in the Catalyst Center and it is working. Attached the screenshots.

[eberzani]

Dear GChellia, 

I apologize as I do not seem to observe your name. 

Thank you for taking the time to respond! 

Perhaps you may need a bit more information to help me better. 
- How do I Simulate the template to be pushed on two routers at the same time? The current Simulation only allows me one router
- Could you elaborate further on the $hostname part? What is it supposed to do?
- For some reason CC cannot push anything when I enter a HOSTNAME ---> Declared as a Variable type ---> Multiple options. I select the hostname AND I select PRIMARY or SECONDARY and nothing is pushed. 

Would you by any chance be free for a short call with me? at your convenience and less than 30 minutes would be sufficient. We wish to migrate from PRIME to CC and this is a showstopper at the moment  

Kind regards, 
Eugen Berzani

[Chloeharper]

Not entirely sure what’s going wrong here but Velocity templates have some weird quirks with null checks and booleans. It does not always follow standard logic which can be frustrating.