[chef] debugging recipe for a specific incorrect file

[Nikhil Shah < >]

I've fried my brain going thru each configs and I can't for the life of me figure out where i messed up the configs. Is there a way to debug this within the recipe? I've checked data bags and roles and it seems like the error is saying I have a null value as hostgroup, but I don't see anything. 

Recipe Compile Error in /var/chef/cache/cookbooks/nagios/recipes/server.rb
================================================================================

NoMethodError
-------------
undefined method `each' for nil:NilClass

Cookbook Trace:
---------------
  /var/chef/cache/cookbooks/nagios/recipes/server.rb:156:in `block in from_file'
  /var/chef/cache/cookbooks/nagios/recipes/server.rb:155:in `each'
  /var/chef/cache/cookbooks/nagios/recipes/server.rb:155:in `from_file'

Relevant File Content:
----------------------
/var/chef/cache/cookbooks/nagios/recipes/server.rb:
149:  unmanaged_hosts = nagios_bags.get('nagios_unmanagedhosts')
150:  serviceescalations = nagios_bags.get('nagios_serviceescalations')
151:  contacts = nagios_bags.get('nagios_contacts')
152:  contactgroups = nagios_bags.get('nagios_contactgroups')
153:  
154:  # Add unmanaged host hostgroups to the hostgroups array if they don't already exist
155:  unmanaged_hosts.each do |host|
156>>   host['hostgroups'].each do |hg|
157:      if !hostgroups.include?(hg)
158:        hostgroups << hg
159:      end
160:    end
161:  end
162:  
163:  # Load search defined Nagios hostgroups from the nagios_hostgroups data bag and find nodes
164:  hostgroup_nodes= Hash.new
165:  hostgroup_list = Array.new


[2015-08-04T17:05:01-04:00] ERROR: Running exception handlers
[2015-08-04T17:05:01-04:00] ERROR: Exception handlers complete
[2015-08-04T17:05:01-04:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
Chef Client failed. 0 resources updated
[2015-08-04T17:05:01-04:00] ERROR: undefined method `each' for nil:NilClass
[2015-08-04T17:05:01-04:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)
You have new mail in /var/spool/mail/root

--

Nikhil Shah • System Administrator

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