Hey Josh,
Don't use the $ for variables in Templates - Puppet variables and arrays
are accessed as local variables/arrays in templates. So try this: TEST:
<%= myhash[key][subkey1] %>
On Wed, Apr 11, 2012 at 9:04 AM, Josh <j...@chickenmonkey.co.uk> wrote:
> I am using puppet version 6.2 (the one that comes with squeeze) in case it
> makes a difference.
>
> I am new to puppet and am having a problem getting access to the elements
> of a hash in my erb templates and no matter what I google for I cannot seem
> to find out what I am doing wrong.
>
> I have stripped everything back to example code to rule out other things,
> in reality I have split my files up a but to avoid the monolithic init.pp
> and nodes.pp. Anyway...
>
> my nodes.pp has this in it:
>
> node 'pc01.domain.com' {
>
> # Test code
> $myhash = {
> key => {
> subkey1 => 'foo',
> subkey2 => 'bar'
> }
> }
>
> include mymodule
> }
>
> Then in the modules init.pp I have:
>
> class mymodule {
> # Test code
> notice($myhash[key][subkey1])
> notice($myhash[key][subkey2])
> file { "/tmp/test":
> ensure => present,
> content => template("mymodule/test.erb"),
> }
> }
>
> If I run puppet against this the two notice lines work fine so I have
> access to the data within the module, the problem is getting it into the
> template. I tried a few different syntaxes to no effect:
>
> So first I tried a template like so:
> TEST: <%= $myhash[key][subkey1] %>
>
> This gave me the error:
> *err: Could not retrieve catalog from remote server: Error 400 on SERVER:
> Failed to parse template mymodule/test.erb: Could not find value for 'key'
> at /etc/puppet/modules/mymodule/manifests/init.pp:7 on node
> pc01.domain.com*
>
> If I quote the string in the template (i.e. "<%= $myhash[key][subkey1] %>")
> then it just spits out that string into the file rather than interpreting
> the data.
>
> I have similar errors if I try to use scope.lookupvar to explicitly
> specify where things are too.
>
> So, what am I doing wrong or is it just not possible to pick a single hash
> element and put it into a template.
>
> Thanks
> Josh
> p.s. my Ruby sucks so if I have to go down that route it'll need to be a
> noddy explanation
>
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--
Gary Larizza
Professional Services Engineer
Puppet Labs
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