Chaining resources - locking / ordering

init.pp

class ntp
{
    # http://docs.puppetlabs.com/guides/language_guide.html#chaining-resources

    # anchor is in https://github.com/puppetlabs/puppetlabs-stdlib

    anchor { 'ntp::start': }->
    class { 'ntp::package': }->
    class { 'ntp::config': }~>
    class { 'ntp::service': }->
    anchor { 'ntp::end': }

    # Replacing -> by ~> will also give you a notify of the second if the first changes

}