An example smf property defined type (I don't remember if it works...)

smf_prop.pp

#
# This provides simple setting of smf service properties idempotently
# Usage:
# smf_prop { 'application/pkg/server pkg/port=blah': }
#
# Example (from my defunct ips repo manifest
#   Smf_prop {
#     notify => Service[ $service ],
#     require => Exec[ "create-pkgrepo-${path}" ],
#   }
#
#   smf_prop { "${service} pkg/inst_root=${path}": }
#   smf_prop { "${service} pkg/port=${port}": }
#   smf_prop { "${service} pkg/readonly=${readonly}": }
#   smf_prop { "${service} pkg/threads=${threads}": }
#   smf_prop { "${service} pkg/proxy_base=${proxy}": }
#
#   service { $service: enable => true, ensure => running, }
#
define smf_prop (
  $title = $name,
  $ensure = 'present'
) {
  $service_holder = split $title, ' '
  $key_value = split $service_holder[1], '='

  $service = $service_holder[0]
  $prop = $key_value[0]
  $value = $key_value[1]

  # shorter commands please
  $listval = 'listprop -o value'

  Exec { path => [ '/bin', '/usr/bin', '/sbin', '/usr/sbin' ], logoutput => on_failure }

  if $ensure == 'present' {

    # if the value is blank then we can ensure the property is present
    # but that it's value is unset
    if $value == '' {
      exec { "unset-${service}-${prop}":
        command => "svccfg -s ${service} delpropvalue ${prop}",
        unless => "svccfg -s ${service} ${listval} ${prop} | grep ' '",
      }
    } else {

      # otherwise set the value hard!
      exec { "set-${service}-${prop}-to-${value}":
        command => "svccfg -s ${service} setprop ${prop} = ${value}",
        unless => "svccfg -s ${service} ${listval} ${prop} | grep ${value}",
      }

    } elsif $ensure == 'absent' {

      # if the value wasn't set then we will remove the property altogether
      if $value == '' {
        exec { "remove-${prop}-from-${service}":
          command => "svccfg -s ${service} delprop ${prop}",
          unless => "svccfg -s ${service} listprop ${prop} | grep ${prop}",
        }
    } else {

      # otherwise we'll remove the property from a set of them
      exec { "remove-${value}-from-${service}-${prop}":
        command => "svccfg -s ${service} delpropvalue ${prop} ${value}",
        unless => "svccfg -s ${service} ${listval} ${prop} | grep ${value}",
      }
    }
  }
}