gistfile1.txt

Imagine our user from before:

    class users {
      user { 'elmo':
        ensure => present,
        shell => '/bin/zsh',
        home => '/home/elmo',
      }
      file { '/home/elmo':
        ensure => directory,
      }
      file { '/home/elmo/.profile':
        ensure => file,
        source => 'puppet:///modules/users/profile',
      }
    }

What if we want more users?

    class users {
      user { 'elmo':
        ensure => present,
        shell => '/bin/zsh',
        home => '/home/elmo',
      }
      user { 'piggy':
        ensure => present,
        shell => '/bin/zsh',
        home => '/home/piggy',
      }
      user { 'kermit':
        ensure => present,
        shell => '/bin/bash',
        home => '/home/kermit',
      }
      file { '/home/elmo':
        ensure => directory,
      }
      file { '/home/piggy':
        ensure => directory,
      }
      file { '/home/kermit':
        ensure => directory,
      }
      file { '/home/elmo/.profile':
        ensure => file,
        source => 'puppet:///modules/users/profile',
      }
      file { '/home/piggy/.profile':
        ensure => file,
        source => 'puppet:///modules/users/profile',
      }
      file { '/home/kermit/.profile':
        ensure => file,
        source => 'puppet:///modules/users/profile',
      }
    }

Show students how to collapse into:

    define myuser (
      #user = $name,
      shell = '/bin/zsh',
    ) {
      user { $name:
        ensure => present,
        shell => '/bin/zsh',
        home => '/home/elmo',
      }
      file { "/home/$name":
        ensure => directory,
      }
      file { "/home/${name}/.profile":
        ensure => file,
        source => 'puppet:///modules/users/profile',
      }
    }

    class users {
      myuser { 'elmo': }
      myuser { 'piggy': }
      myuser { 'kermit':
        shell => '/bin/bash',
      }
    }