Puppet - test if a package already defined?

Question

I\'m writing some puppet modules and have a package defined in two modules hence get the following error:

err: Could not retrieve catalog from remote server: Err         


        

Answer 1

You are missing Package[] inside defined(). The correct way to do it:

if ! defined(Package['gnome-session-fallback']) {
    package { 'gnome-session-fallback':
        ensure => installed,
    }
}