example_puppet.rb

require 'puppet'

puppet_params = {
    :name => 'foo',
    :ensure => 'present',
    :key => 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDH1chpGVgtqgdXh62qS1V2g8Ic2nbpfXgzXAseObYYocOa0NIeCOmFxbMEhzT9h6/EhYTpF6tq0Gn8aBBd8gb90OlHdTIZ2j9IVhqLxmwnUJ3lwTbq6cEdVy1M/TM+A/TygRcqRrbNgoswGaVem
lfk7caeenN2KxG3vjzq5cCIAhGD7DeI9qQawZuKdJOCOgqUL6rF/J9nyyzPAS5uCeQumncGR+cfrywe9ZCUJrUbrWeYFHtB0d3XhbxCYJIqui3kMmbhQzsLGka9tcWQ1Zwm7VpcIrgerEyHO+0aNusG1szvxQkVWk1Bi7RI8fNLaogSq+HqkU2CRH
nEk7arJa9t',
    :type => 'ssh-rsa',
    :user => 'ubuntu'
  }

puppet_definition = :ssh_authorized_key

if Puppet.settings.respond_to?(:initialize_global_settings)
  Puppet.settings.initialize_global_settings
end

if Puppet.settings.respond_to?(:initialize_app_defaults)
  Puppet.settings.initialize_app_defaults(Puppet::Settings.app_defaults_for_run_mode(Puppet.run_mode))
end

pup = Puppet::Type.type(puppet_definition).new(puppet_params)
catalog = Puppet::Resource::Catalog.new
catalog.add_resource pup
catalog.apply()

=begin

ruby puppet_point_of_failure.rb
/opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/context.rb:54:in `lookup': Could not autoload puppet/type/ssh_authorized_key: no 'environments' in {:current_environment=>*root*, :root_environment=>*root*} at top of [[0, nil, nil]] (Puppet::Error)
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet.rb:226:in `lookup'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:131:in `module_directories'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:160:in `search_directories'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:94:in `files_to_load'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:75:in `loadall'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:209:in `loadall'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/metatype/manager.rb:122:in `newtype'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet.rb:163:in `newtype'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/type/ssh_authorized_key.rb:2:in `<module:Puppet>'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/type/ssh_authorized_key.rb:1:in `<top (required)>'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:62:in `load'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:62:in `load_file'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/util/autoload.rb:195:in `load'
  from /opt/puppet-omnibus/embedded/lib/ruby/gems/1.9.1/gems/puppet-3.6.2/lib/puppet/metatype/manager.rb:163:in `type'

end