Adding some protection in case the nagios_services data bag doesn't exist or is empty.
Adding some protection in case the nagios_services data bag doesn't exist or is empty.

Springest/nagios,OpenGov/nagios,chrisroberts/nagios,cookbooks/mc-nagios,polamjag/nagios,firebase/nagios,mconf-cookbooks/nagios,Tealium/nagios,lusis/nagios,caleb/nagios,chrisroberts/nagios,ChrisLundquist/nagios,Piousbox-cookbooks/nagios,popsikle/nagios-5.3.5,firebase/nagios,ChrisLundquist/nagios,bitmonk/chef-nagios,earzur/nagios,aaronkvanmeerten/nagios,mrlamroger/nagios,mattupstate/nagios,firebase/nagios,Tealium/nagios,OpenGov/nagios,Tealium/nagios,cookbooks/oc-nagios,JulianNL/nagios,Piousbox-cookbooks/nagios,polamjag/nagios,ovaistariq/nagios,mrlamroger/nagios,Piousbox-cookbooks/nagios,jtimberman/nagios,earzur/nagios,Tealium/nagios,JulianNL/nagios,Tealium/nagios,cookbooks/mc-nagios,bitmonk/chef-nagios,polamjag/nagios,mrlamroger/nagios,JulianNL/nagios,chrisroberts/nagios,hnakamur/nagios,cookbooks/oc-nagios,earzur/nagios,spudnic/nagios,CanaryTek/nagios,OpenGov/nagios,jtimberman/nagios,spudnic/nagios,mconf-cookbooks/nagios,schubergphilis/nagios,aaronkvanmeerten/nagios,aaronkvanmeerten/nagios,schubergphilis/nagios,spudnic/nagios,mattupstate/nagios,JulianNL/nagios,cookbooks/oc-nagios,ovaistariq/nagios,Tealium/nagios,ChrisLundquist/nagios,caleb/nagios,pierreozoux/nagios,OpenGov/nagios,mconf-cookbooks/nagios,mrlamroger/nagios,CanaryTek/nagios,schubergphilis/nagios,spudnic/nagios,firebase/nagios,CanaryTek/nagios,ovaistariq/nagios,cookbooks/mc-nagios,popsikle/nagios-5.3.5,bitmonk/chef-nagios,bitmonk/chef-nagios,jtimberman/nagios,mattupstate/nagios,Piousbox-cookbooks/nagios