Puppet 3 loop execution only if variable is defined within a template

Question

I am trying to create a loop only if index is defined. But it looks like erb can't handle a loop within a if clause.

<% if(@index) %>
index <% index_files.each do |i| %> <%= i %> <% end %>;
<% end %>

Expected Result was: index index.html index.php or ""

Syntax error i got:

My flat approach failed as expected:

<% if(@index_files) %> try_files <% end %>  <% index_files.each do |i| %> <%= i %> <% end %>

I defined index_files as undef => broke the each loop I defined an empty array => since an empty array is defined it didn't work.

Maybe I can check the length of index_files ? Or do I need a complete different way to solve the problem?

Answer 1

I'm doing the same and it works for me, also for nginx ;).

For example: <% if @proxy_ignore_headers %> proxy_ignore_headers<% proxy_ignore_headers.each do |i| -%> <%= i %><% end -%>; <% if @proxy_ignore_headers %> proxy_ignore_headers<% proxy_ignore_headers.each do |i| -%> <%= i %><% end -%>;

That works like a charm, the only difference with you is using () for the if condition, but I bet puppet supports (). It's weird, maybe you had pressed a bad combination generating a character that can't be seen but it's messing with your code, try writing all from scratch just in case.

You can see the full template here

Good luck

Answer 2

At first glance you just need to change

index_files.each

to

@index_files.each