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I am receiving the following error on a Puppet agent when trying to install multiple packages at once:

err: /Stage[main]/Template::Infrastructure/Package[undef]/ensure: change from absent to present failed: Execution of '/usr/bin/yum -d 0 -e 0 -y install undef' returned 1: Error: Nothing to do

The code generating the error is:

$packages = [ 'qemu-kvm', 'qemu-kvm-tools', 'drbd84-tools', 'kmod-drbd84' ]
package {
  $::packages :
    ensure  =>  'installed',
    require =>  Class['yumrepos::elrepo']
}

The problem is intermittent. Is there a better way to install multiple packages at once without having to setup a package resource for each?

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1 Answer

up vote 4 down vote accepted

Using it as $::packages states explicitly that you want the variable to be looked up in the top scope, outside of any class. Since you seem to be defining it inside a class, this won't work.

Just use package { $packages: or package { $classname::packages: instead.

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Thanks, I had not quite a grasp on the difference of first looking in top scope. The way the variable is used makes much more sense to me now. –  Andy Shinn Sep 10 '12 at 21:50
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