diff -r 139bf74b9374 -r e3b168fa7513 dev/provisioning/modules/drush/manifests/setup.pp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dev/provisioning/modules/drush/manifests/setup.pp	Tue Oct 18 18:46:45 2016 +0530
@@ -0,0 +1,94 @@
+class drush::setup {
+
+  #private()
+  if $caller_module_name != $module_name {
+    warning("${name} is not part of the public API of the ${module_name} \
+module and should not be directly included in the manifest.")
+  }
+
+  # Install extra packages.
+  validate_bool($drush::ensure_extra_packages)
+  if $drush::ensure_extra_packages {
+    validate_array($drush::extra_packages)
+    package { $drush::extra_packages:
+      ensure => installed,
+    }
+  }
+
+  concat{ 'drush-sh-profile':
+    ensure => present,
+    path   => '/etc/profile.d/drush.sh',
+  }
+  concat::fragment { 'drush-sh-profile-header':
+    ensure  => present,
+    target  => 'drush-sh-profile',
+    content => "# MANAGED BY PUPPET\n\n",
+    order   => 0,
+  }
+  if $drush::php_path {
+    validate_absolute_path($drush::php_path)
+    concat::fragment { 'drush-sh-profile-php-path':
+      ensure  => present,
+      target  => 'drush-sh-profile',
+      content => "export DRUSH_PHP=${drush::php_path}\n",
+      order   => 1,
+    }
+  }
+  if $drush::php_ini_path {
+    validate_absolute_path($drush::php_ini_path)
+    concat::fragment { 'drush-sh-profile-php-ini-path':
+      ensure  => present,
+      target  => 'drush-sh-profile',
+      content => "export PHP_INI=${drush::php_ini_path}\n",
+      order   => 1,
+    }
+  }
+  if $drush::drush_ini_path {
+    validate_absolute_path($drush::drush_ini_path)
+    concat::fragment { 'drush-sh-profile-drush-ini-path':
+      ensure  => present,
+      target  => 'drush-sh-profile',
+      content => "export DRUSH_INI=${drush::drush_ini_path}\n",
+      order   => 1,
+    }
+  }
+
+  # Base install path of any drush installations.
+  file { $drush::install_base_path:
+    ensure => directory,
+  }
+
+  # Drush directories.
+  file { ['/etc/drush', '/usr/share/drush', '/usr/share/drush/commands']:
+    ensure => directory,
+  }
+
+  # Symlink to drush default version executable.
+  file { $drush::drush_exe_default:
+    ensure => link,
+    target => "/usr/local/bin/drush${drush::default_version_major}",
+  }
+
+  # Install drush versions. It could be improved with future parser's each(),
+  # or building a hash like
+  # {'6' => {'version' => '6'}, 'master' => {'version' => 'master'}}
+  validate_array($drush::versions)
+  $versions = parseyaml(template('drush/install-versions-hash.erb'))
+  $defaults = {
+    install_type => $drush::install_type,
+    autoupdate   => $drush::autoupdate,
+    method       => 'composer'
+  }
+  create_resources('drush::install', $versions, $defaults)
+
+  # Make /opt/drush/default a symlink to the codebase
+  # of the default drush installation.
+  # TODO: this is coupled to composer install method.
+  $default_path = "${drush::install_base_path}/${drush::default_version_major}"
+  file { "${drush::install_base_path}/default":
+    ensure => link,
+    target => "${default_path}/vendor/drush/drush",
+  }
+
+}
+