Containment example

manifests_site.pp

node default {

  notify { 'final notice':
    message => "this should come last"
  } <-
  class { 'containers': }

}

modules_containers_manifests_includedclass.pp

# this class is brought in with an 'include' statement
class containers::includedclass {

  notify { "includedclass":
    message => "This should be in the middle"
  }

}

modules_containers_manifests_init.pp

# example class intended to exercise containment in a minimal way
# that still reflects real-world usage, modelled after puppetlabs-apt

class containers {

  notify { "containers":
    message => "This should be first"
  }

  # the resources in here are supposed to be contained
  contain containers::includedclass

  # with 'include' instead of 'contain', this is needed to 
  # prevent includedclass from 'float'
  #anchor { 'containers-anchor':
  #  require => Class['containers::includedclass']
  #}

}