How to loop through entries in nodes definition for puppet

Question

Could someone please help me understand how I could loop through the following nodes definition in my templates file?

ip::addr{ "as2s67v": ip0 => "192.168.30.0", pre0 => "/24", ip1 => "172.45.35.0", pre1 => "/16", ip2 => "145.88.88.0", pre2 => "/24", } 

I'd like to print out the above using my template file, however I can't be certain of how many entries will exist, I want to end up with a file like so:

server: as2s67v ipaddress0 = "192.168.30.0" prefix0 = "24" ipaddress1 = "172.45.35.0" prefix1 = "16" ipaddress2 = "145.88.88.0" prefix2 = "24" 

How could I go about achieving this?

thanks Dan

Answer 1

Not exactly what you're looking for, but it cuts down on having to keep multiple variables in sync:

site.pp:

class { 'ip::addr': name => "as2s67v", cidrs => [ "192.168.30.0/24", "172.45.35.0/16", "145.88.88.0/24" ] } 

modules/ip/addr.pp:

class ip::addr ($cidrs) { file { "/tmp/$name": content => template("ip/template.pp") } } 

template.pp:

server: <%= name %> <% for idx in (0..(cidrs.length-1)) -%> ipaddress<%= idx %> = "<%= cidrs[idx].split("/")[0] %>" prefix<%= idx %> = "<%= cidrs[idx].split("/")[1] %> <% end -%> 

References:

• How do you pass an array to an erb template in ruby and have it iterated over?
• Nested arrays in puppet