Added CORS configuration to puppet-storyboard

Storyboard will soon support CORS, which is configured via
storyboard.conf. This patch adds the two relevant properties
to the puppet module, and makes them accessible in
storyboard::application.

Depends on https://review.openstack.org/#/c/124163/

Change-Id: I33a33076a18a9192b067a9f6f08d752ff8c22e3b

Modulefile

@@ -8,6 +8,7 @@ description 'This module configures StoryBoard either as a standalone, localhost
 project_page 'https://github.com/openstack-ci/puppet-storyboard'
 
 ## Add dependencies, if any:
+dependency 'puppetlabs/stdlib', '= 3.2.0'
 dependency 'puppetlabs/mysql', '= 0.6.1'
 dependency 'puppetlabs/apache', '= 0.0.4'
 dependency 'puppetlabs/rabbitmq', '= 4.0.0'

manifests/application.pp

@@ -25,6 +25,8 @@ class storyboard::application (
   $www_root               = '/var/lib/storyboard/www',
   $server_admin           = undef,
   $hostname               = $::fqdn,
+  $cors_allowed_origins   = undef,
+  $cors_max_age           = 3600,
 
   # storyboard.conf parameters
   $access_token_ttl       = 3600,
@@ -48,6 +50,12 @@ class storyboard::application (
   $webclient_filename = 'storyboard-webclient-latest.tar.gz'
   $webclient_url = "http://tarballs.openstack.org/storyboard-webclient/${webclient_filename}"
 
+  if $cors_allowed_origins {
+    $cors_allowed_origins_string = join($cors_allowed_origins, ',')
+  } else {
+    $cors_allowed_origins_string = undef
+  }
+
   # Dependencies
   require storyboard::params
   include apache

templates/storyboard.conf.erb

@@ -50,6 +50,18 @@ refresh_token_ttl = <%= @refresh_token_ttl %>
 # and subscriptions.
 enable_notifications = <%= @enable_notifications %>
 
+<% if scope.lookupvar("storyboard::application::cors_allowed_origins_string") != :undef %>
+[cors]
+# W3C CORS configuration. For more information, see http://www.w3.org/TR/cors/
+
+# List of permitted CORS domains.
+allowed_origins = <%= @cors_allowed_origins_string %>
+
+# CORS browser options cache max age (in seconds)
+max_age=<%= @cors_max_age %>
+
+<% end %>
+
 [database]
 # This line MUST be changed to actually run storyboard
 # Example: