gistfile1.pp

class nova (
  $ensure_package => 'present',
) {

  anchor { 'nova::common::package::begin': } ->
  package { 'nova-common':
    ensure => $ensure_package,
    name   => $nova::params::common_package_name,
  } ->
  anchor { 'nova::common::package::end': } ->

  anchor { 'nova::config::begin': } ->
  Nova_config<| |> ->
  anchor { 'nova::config::end': } ->
}

class nova::api (
  $ensure_package => 'present',
) {

  include ::nova

  anchor { 'nova::api::package::begin': } ->
  package { 'nova-api':
    ensure => $ensure_package,
    name   => $nova::params::api_package_name,
  } ->
  anchor { 'nova::api::package::end': } ->
  Anchor['nova::config::begin']

  Anchor['nova::config::end'] ->
  anchor { 'nova::api::service::begin': } ->
  service { 'nova-api':
    ensure => 'running',
    name   => $nova::params::api_service_name,
  } ->
  anchor { 'nova::api::service::end': } ->

  anchor { 'nova::api::service_validation::begin': } ->
  os_service_validation { 'nova-api': }
  anchor { 'nova::api::service_validation::end': }
}