On Tue, Nov 15, 2011 at 01:42:24PM -0800, Justin Lloyd wrote:
> I tried the following (names changed to protect the innocent and guilty):
>
> class myclass ( $param ) {
>
> ��� $myvar = [ "foo", "bar" ]
>
> ��� if $param == "special" {
> ������� $myvar += [ "blah" ]
> ��� }
>
> }
>
> and got the message "...Cannot append, variable myvar is defined in this
> scope...". According to the docs, [1]variables cannot be modified in the
> same scope because of the declarative nature of Puppet.
>
> However, if I change the plus-signment statment to
>
> $myclass::myvar += [ "blah" ]
>
> it works fine. Can someone explain this aspect of scoping? (Or is this
> possibly a bug...?)
>
> Justin
Simpler example, but I get "bar\n" in both files:
$ cat /tmp/scope1.pp
class myclass {
$myvar = [ "foo\n", "bar\n" ]
file { "/tmp/a1":
content => $myvar
}
$myclass::myvar += [ "blah" ]
file { "/tmp/a2":
content => $myclass::myvar,
}
}
class { myclass: }
$ puppet apply /tmp/scope1.pp
notice: /Stage[main]/Myclass/File[/tmp/a2]/ensure: defined content as
'{md5}d3b07384d113edec49eaa6238ad5ff00'
notice: /Stage[main]/Myclass/File[/tmp/a1]/ensure: defined content as
'{md5}d3b07384d113edec49eaa6238ad5ff00'
$ cat /tmp/a1
bar
$ cat /tmp/a2
bar
Maybe it's not emitting an error, but I can't get $myclass::myvar with a
different value. Not that I know so much about what's going on.
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> References
>
> Visible links
> 1. http://docs.puppetlabs.com/guides/language_guide.html
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