[chef] RE: If nil how to set attributes

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If you don't actually need to save node['kafka']['broker_id'] back to the Chef server, you could probably also get away with:

broker_id = node['kafka']['broker_id'] || Time.now.getutc.to_i

-Ameir

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From: 
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To: <
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Sent: Monday, September 15, 2014
Subject: [chef] If nil how to set attributes

Hi,

Why oh why is this happening?

If nil I need to set an attribute.

node['kafka']['broker_id']

Why do I get the below error?  How do I resolve?

Thanks

[192.241.213.141] out:   ================================================================================
[192.241.213.141] out:   Recipe Compile Error in /var/feed-chef/chef-repo/cookbooks/kafka/recipes/default.rb
[192.241.213.141] out:   ================================================================================
[192.241.213.141] out:  
[192.241.213.141] out:   NoMethodError
[192.241.213.141] out:   -------------
[192.241.213.141] out:   undefined method `[]' for nil:NilClass
[192.241.213.141] out:  
[192.241.213.141] out:   Cookbook Trace:
[192.241.213.141] out:   ---------------
[192.241.213.141] out:     /var/feed-chef/chef-repo/cookbooks/kafka/recipes/default.rb:88:in `from_file'
[192.241.213.141] out:  
[192.241.213.141] out:   Relevant File Content:
[192.241.213.141] out:   ----------------------
[192.241.213.141] out:   /var/feed-chef/chef-repo/cookbooks/kafka/recipes/default.rb:
[192.241.213.141] out:  
[192.241.213.141] out:    81:  PYCODE
[192.241.213.141] out:    82:  end
[192.241.213.141] out:    83:    if File.exists?("#{Chef::Config[:file_cache_path]}/zookeeper_hosts")
[192.241.213.141] out:    84:      zookeeper_hosts = File.read("#{Chef::Config[:file_cache_path]}/zookeeper_hosts")
[192.241.213.141] out:    85:    end
[192.241.213.141] out:    86:   
[192.241.213.141] out:    87:     
[192.241.213.141] out:    88>>   if node['kafka']['broker_id'].nil?
[192.241.213.141] out:    89:      node.set['kafka']['broker_id'] = Time.now.getutc.to_i
[192.241.213.141] out:    90:    end
[192.241.213.141] out:    91:    broker_id = node['kafka']['broker_id']
[192.241.213.141] out:    92:    template "/var/kafka/config/server.properties" do
[192.241.213.141] out:    93:      path "/var/config/server.properties"
[192.241.213.141] out:    94:      source "server.properties.local.erb"
[192.241.213.141] out:    95:      owner "root"
[192.241.213.141] out:    96:      group "root"
[192.241.213.141] out:    97:      mode "0644"
[192.241.213.141] out:  
[192.241.213.141] out: