Update cookbooks and add wordpress cookbook

cookbooks/postgresql/recipes/client.rb

@@ -15,18 +15,23 @@
 # limitations under the License.
 #
 
-if platform_family?('debian') && node['postgresql']['version'].to_f > 9.3
-  node.default['postgresql']['enable_pgdg_apt'] = true
+include_recipe "postgresql::ca_certificates"
+
+case node['platform_family']
+when 'debian'
+  if node['postgresql']['version'].to_f > 9.3
+    node.set['postgresql']['enable_pgdg_apt'] = true
+  end
+
+  if node['postgresql']['enable_pgdg_apt']
+    include_recipe 'postgresql::apt_pgdg_postgresql'
+  end
+when 'rhel'
+  if node['postgresql']['enable_pgdg_yum']
+    include_recipe 'postgresql::yum_pgdg_postgresql'
+  end
 end
 
-if(node['postgresql']['enable_pgdg_apt']) and platform_family?('debian')
-  include_recipe 'postgresql::apt_pgdg_postgresql'
-end
-
-if(node['postgresql']['enable_pgdg_yum']) and platform_family?('rhel')
-  include_recipe 'postgresql::yum_pgdg_postgresql'
-end
-
-node['postgresql']['client']['packages'].each do |pg_pack|
-  package pg_pack
+node['postgresql']['client']['packages'].each do |pkg|
+  package pkg
 end