Re: Error: Failed to parse template . Detail: Could not find value for 'serveraliases' at

[Craig White]

Testing for errors is part of the erb game. Comment all of that out and put in just <%= serveraliases -%> just to see what is written to the file.

In your case above, it seems you have accounted for whether serveraliases is an array or empty but not a simple string which is probably what it is.

On Friday, January 9, 2015 at 8:41:20 AM UTC-7, Spriya wrote:

Hi,

I am having this issue:

Error: Failed to parse template otrs/vhost-otrs.conf.erb:

  Filepath: /opt/puppet/lib/ruby/site_ruby/1.9.1/puppet/parser/templatewrapper.rb

  Line: 81

  Detail: Could not find value for 'serveraliases' at /etc/puppetlabs/puppet/modules/otrs/templates/vhost-otrs.conf.erb:7

 at /etc/puppetlabs/puppet/modules/otrs/manifests/apache.pp:10 on node dot-pap-spr-t03.ddc.dot.state.ma.us

Here is my code manifests code:

class otrs::apache {

  include apache

  apache::vhost { $otrs::sitename:

    priority        => '01',

    docroot         => '/var/www',

    port            => '80',

    serveraliases   => [ $::fqdn ],

}

}

Here is my template:

 cat vhost-otrs.conf.erb

# OTRS Config

# MaxRequestsPerChild (so no apache child will be to big!)

MaxRequestsPerChild 4000

<VirtualHost *:<%= scope.lookupvar("otrs::apache::port") %>>

  ServerName <%= @name %>

<%if serveraliases.is_a? Array -%>

<% serveraliases.each do |name| -%><%= "  ServerAlias #{name}\n" %><% end -%>

<% elsif serveraliases != '' -%>

<%= "  ServerAlias #{serveraliases}" -%>

<% end -%>

Do any one knows  answer? I could not find the answer for this?

[Martin Alfke]

Seems to be an issue with unscoped variable inside the template.
https://docs.puppetlabs.com/guides/templating.html#referencing-variables

Please switch to scoped variables in your template:

# OTRS Config
# MaxRequestsPerChild (so no apache child will be to big!)
MaxRequestsPerChild 4000

<VirtualHost *:<%= scope.lookupvar("otrs::apache::port") %>>
ServerName <%= @name %>

<%if @serveraliases.is_a? Array -%>
<% @serveraliases.each do |name| -%><%= " ServerAlias #{name}\n" %><% end -%>
<% elsif @serveraliases != '' -%>
<%= " ServerAlias #{@serveraliases}" -%>
<% end -%>

hth,

Martin

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[Spriya]

Hi Martin,

I switched that to scoped variables. After  that i am getting another issue.

Here is .erb file:

# OTRS Config

# MaxRequestsPerChild (so no apache child will be to big!)

MaxRequestsPerChild 4000

<VirtualHost *:<%= scope.lookupvar("otrs::apache::port") %>>

  ServerName <%= @name %>

<%if scope.lookupvar("otrs::apache::serveraliases").is_a? Array -%>

<% serveraliases.each do |name| -%><%= "  ServerAlias #{name}\n" %><% end -%>

<% elsif scope.lookupvar("otrs::apache::serveraliases") != '' -%>

<%= "  ServerAlias #{scope.lookupvar("otrs::apache::serveraliases")}" -%>

<% end -%>

  ServerAdmin <%= scope.lookupvar("otrs::serveradmin") %>

Now the issue is:

class otrs::apache {

  include apache

  apache::vhost { $otrs::sitename:

    priority        => '01',

    docroot         => '/var/www',

    port            => '80',

    serveraliases   => [ $::fqdn ],

    content        => template('otrs/vhost-otrs.conf.erb'),

  }

Error: Invalid parameter content at /etc/puppetlabs/puppet/modules/otrs/manifests/apache.pp:11 

[Martin Alfke]

Hi,

>
> class otrs::apache {
>
> include apache
>
> apache::vhost { $otrs::sitename:
> priority => '01',
> docroot => '/var/www',
> port => '80',
> serveraliases => [ $::fqdn ],
> content => template('otrs/vhost-otrs.conf.erb'),
> }
>
> Error: Invalid parameter content at /etc/puppetlabs/puppet/modules/otrs/manifests/apache.pp:11
>

Are you using puppetlabs-apache module or have you written the apache::ghost define by yourself?
Check that the define knows about the parameter content.

Puppetlabs-apache ghost define does not have the content attribute.
They switched to concat module and small template snippets.
https://github.com/puppetlabs/puppetlabs-apache/blob/master/manifests/vhost.pp

- Martin