Bailout when no web-password was given, while trying to configure a g…

…anglia server and bypass invalid web-user values.

cr https://cr.amazon.com/r/1628766/

opsworks_ganglia/attributes/default.rb

@@ -45,8 +45,9 @@
 default[:ganglia][:web][:svn] = 'no'
 default[:ganglia][:web][:url] = '/ganglia'
 default[:ganglia][:web][:welcome_page] = 'ganglia_welcome.html'
-default[:ganglia][:web][:user] = 'opsworks'
-default[:ganglia][:web][:password] = SecureRandom.base64[0...20]
+
+default[:ganglia][:web][:user] = (node['ganglia']['web']['user'].blank? rescue true) ? 'opsworks' : node['ganglia']['web']['user']
+
 default[:ganglia][:web][:destdir] = case node[:platform_family]
                                     when "rhel"
                                       "/usr/share/ganglia"

opsworks_ganglia/recipes/configure-server.rb

@@ -23,6 +23,11 @@
   end
 end
 
+if (node['ganglia']['web']['password'].blank? rescue true)
+  Chef::Log.error "Bailing out while configuring Ganglia Server. Password for ganglia webfrontend was not defined. Please set a non-empty password and try again."
+  exit 1
+end
+
 execute 'Update htpasswd secret' do
   command "htpasswd -b -c /etc/ganglia-webfrontend/htaccess #{node[:ganglia][:web][:user]} #{node[:ganglia][:web][:password]}"
 end