[Kea-users] Example for ifelse in host reservation or class

[Veronique Lefebure]

Hi,

Is there a way to use ifelse in a host reservation ?

We would like something like

"reservations": [ { "hw-address": "xx:xx:xx:xx:xx:fa", "ip-address": 
"yy.yy.yy.121", "hostname": "lab-client", "client-classes": [ " ifelse ( 
substring(option[vendor-class-identifier].text, 0, 9) == 'PXEClient' , 
'Desktop', none) " ] },

But the above does not work: KEA interprets the whole string "ifelse ( 
substring(option[vendor-class-identifier].text, 0, 9) == 'PXEClient' , 
'Desktop', none) " as being the client-class name itself.

Alternatively we could use "ifelse" in the client-class definition but 
none of the combinations we have tried works: we always get a syntax 
error reported by the validation of the json configuration file.

What we need is the equivalent of what we have in DHCPD:

group { # Desktop Clients if substring (option vendor-class-identifier, 
0, 9) = "PXEClient" { option vendor-class-identifier "PXEClient"; option 
dhcp-server-identifier aims.xxx; next-server aims.xxx; } host client1 { 
hardware ethernet xx:xx:xx:xx:xx:fa; option host-name "lab-client"; 
fixed-address yy.yy.yy.121; } ....

}

Thanks,

Veronique

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