puppet and array loop

Solution 1:

Any particular reason you need to use that data structure? That will get unreadable very quickly, and would be very easy to break things by accidentally adding or removing an element from one of the arrays and not the others. How about something like this instead?

$servers = [
  {
    name => 'felix',
    ip   => '192.168.43.5',
    env  => 'prod',
  },
  {
    name => 'washington',
    ip   => '192.168.43.11',
    env  => 'uat',
  },
]

Then it's much simpler to work with in the erb:

<% servers.each do |server| -%>
  <%= server['name'] %> <%= server['ip'] %> <%= server['env'] %>
<% end -%>

But, if you're stuck with your current data structure, then this should do it..

<% (1..servername.length).each do |i| -%>

Solution 2:

Shane Madden's answer is great but for I think there is a '@' missing:

instead of

<% servers.each do |server| -%>

one should use

<% @servers.each do |server| -%>

can someone with higher reputation please comment that in the original answer and/or acknowledge that so my "answer" could be deleted

This is also how it is documented on puppet cookbook third edition

Thanks, Matt