in resources/etcd_service.rb [36:46]
def svc_manager(&block)
case new_resource.service_manager
when 'auto'
svc = etcd_service_manager(new_resource.name, &block)
when 'systemd'
svc = etcd_service_manager_systemd(new_resource.name, &block)
end
svc.copy_properties_from new_resource
svc
end