Issue #10505 has been updated by Jos Boumans.
Correction, the work around is:
<% foo = scope.lookupvar('foo').length > 0 ? scope.lookupvar('foo') : '1' %>
The other one doesn't work with strings.
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Bug #10505: erb mangles if foo == "" and leaves variables undefined
https://projects.puppetlabs.com/issues/10505
Author: Jos Boumans
Status: Unreviewed
Priority: High
Assignee:
Category: templates
Target version: 2.6.x
Affected Puppet version: 2.6.3
Keywords:
Branch:
<pre>
$ puppet --version
2.6.3
</pre>
<pre>
$ cat x.pp
define bar ( $foo = "", $zot = "" ) {
file { '/mnt/tmp/puppet.erb/out':
content => template( '/mnt/tmp/puppet.erb/tmpl.erb' ),
ensure => file,
}
}
bar { $fqdn: foo => "42", zot => "43" }
$ cat tmpl.erb
foo 1: <%= foo %>
zot 1: <%= zot %>
<% if foo == "" %>
<% foo = 1 %>
<% end %>
foo 2: <%= foo %>
zot 2: <%= zot %>
$ puppet x.pp
notice: /Stage[main]//Bar[cc001.krxd.net]/File[/mnt/tmp/puppet.erb/out]/ensure:
defined content as '{md5}c776b25cce50fdc968696030b77e9a4d'
$ cat out
foo 1: 42
zot 1: 43
foo 2:
zot 2: 43
</pre>
################
Confirmed also in 2.7.x, the work around is:
<% foo = scope.lookupvar('foo') || '1' %>
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