I modified the default recipe where it creates the KibanaConfig.rb file. It was
creating it as a root:root file with 0600 privileges.  Then, the kibana user
was unable to open it to start the server.  Now, it's created using the
values from node['kibana']['user'] and node['kibana']['group'].
Merge pull request #2 from neilschelly/fixing-permissions

Modifications to KibanaConfig.rb file