define ikiwiki::instance(
    $ensure                    = 'present',
    $base_url                  = $domain,
    $description               = false,
    $adminuser                 = 'yourname',
    $adminemail                = 'me@example.org',
    $account_creation_password = false,
    $add_plugins               = false,
    $disable_plugins           = false,
    $protocol                  = 'https',
    $owner                     = $name,
    $group                     = $name,
    $home                      = "/home/$owner",
    $create_ssh_key            = false
) {

  $desc = $description ? {
    false   => $title,
    default => $description,
  }

  # This was previously a parameter
  $instance = 'ikiwiki'

  case $ensure {
    'present': {
      file { "/etc/ikiwiki/$name.setup":
        ensure  => present,
        content => template('ikiwiki/ikiwiki.setup.erb'),
        owner   => root,
        group   => $group,
        mode    => 640,
        notify  => Exec["ikiwiki_refresh_${name}"],
      }

      exec { "ikiwiki_refresh_${name}":
        command     => "/usr/local/sbin/ikiwiki-refresh $name $owner $group",
        user        => root,
        refreshonly => true,
      }

      exec { "ssh-keygen-ikiwiki-${owner}":
        command => "ssh-keygen -t rsa -P '' -f ${home}/.ssh/id_rsa",
        creates => "${home}/.ssh/id_rsa",
        user    => $owner,
        group   => $group,
        require => File["${home}/.ssh"],
      }

      if !defined(File["${ikiwiki::sites_folder}/${name}"]) {
        file { "${ikiwiki::sites_folder}/${name}":
          ensure  => directory,
          owner   => root,
          group   => root,
          mode    => 0755,
        }
      }

      if !defined(File["${ikiwiki::sites_folder}/${name}/${instance}"]) {
        file { "${ikiwiki::sites_folder}/${name}/${instance}":
          ensure  => directory,
          owner   => $owner,
          group   => $group,
          recurse => true,
          require => File["${ikiwiki::sites_folder}/${name}"],
        }
      }

      file { "${ikiwiki::sites_folder}/${name}/${instance}_src":
        ensure  => directory,
        owner   => $owner,
        group   => $group,
        recurse => true,
        notify  => Exec["ikiwiki_refresh_${name}"],
        require => File["${ikiwiki::sites_folder}/${name}"],
        require => File["${ikiwiki::sites_folder}/${name}"],
      }

      if $create_ssh_key == true {
        if !defined(File["${home}/.ssh"]) {
          file { "${home}/.ssh":
            ensure  => directory,
            owner   => $owner,
            group   => $group,
            mode    => 0700,
          }
        }

        if !defined(File["${ikiwiki::sites_folder}/${name}"]) {
          file { "${ikiwiki::sites_folder}/${name}":
            ensure  => directory,
            owner   => root,
            group   => root,
          }
        }
      }

      # See http://rtime.felk.cvut.cz/~sojka/blog/using-ikiwiki-with-gitolite/
      file { "/var/git/repositories/${name}.git/hooks/post-update":
        ensure  => present,
        owner   => $owner,
        group   => $ikiwiki::git_implementation,
        mode    => 6550,
        require => File["/etc/ikiwiki/$name.setup"],
      }

      file { "${ikiwiki::sites_folder}/${name}/${instance}/ikiwiki.cgi":
        ensure  => present,
        owner   => $owner,
        group   => $ikiwiki::www_user,
        mode    => 6550,
        require => File["/etc/ikiwiki/$name.setup"],
      }
    }
    'absent': {
      file { "/etc/ikiwiki/$name.setup":
        ensure  => absent,
      }
    }
  }
}