Chef - Chef-Client Run

In order to test Chef-Client run, we need to have Chef-Client configured to use the hosted Chef or own hosted server.

Running Chef-Client in Debug Mode

vipin@server:~$ sudo chef-client -l debug 
…TRUNCATED OUTPUT… 
Hashed Path:A+WOcvvGu160cBO7IFKLYPhh9fI= 
X-Ops-Content-Hash:2jmj7l5rSw0yVb/vlWAYkK/YBwk= 
X-Ops-Timestamp:2012-12-27T11:14:07Z 
X-Ops-UserId:vagrant' 
Header hash: {"X-Ops-Sign"=>"algorithm=sha1;version=1.0;", 
"X-Ops-Userid"=>"vagrant", "X-Ops-Timestamp"=>"2012-12- 
27T11:14:07Z", "X-Ops-Content- 
Hash"=>"2jmj7l5rSw0yVb/vlWAYkK/YBwk=", "X-Ops- 
Authorization- 
1"=>"HQmTt9U/ 
LJJVAJXWtyOu3GW8FbybxAIKp4rhiw9O9O3wtGYVHyVGuoilWDao", 
"X-Ops-Authorization- 
2"=>"2/uUBPWX+YAN0g1/ 
fD2854QAU2aUcnSaVM0cPNNrldoOocmA0U5HXkBJTKok", 
"X-Ops-Authorization- 
3"=>"6EXPrEJg5T+ 
ddWd5qHAN6zMqYc3untb41t+eBpigGHPhtn1LLInMkPeIYwBm", 
"X-Ops-Authorization- 
4"=>"B0Fwbwz2HVP3wEsYdBGu7yOatq7fZBXHfIpeOi0kn/ 
Vn0P7HrucnOpONmMgU", "X-Ops-Authorization- 
5"=>"RBmmbetFSKCYsdg2v2mW/ 
ifLIVemhsHyOQjffPYPpNIB3U2n7vji37NxRnBY", 
"X-Ops-Authorization- 
6"=>"Pb3VM7FmY60xKvWfZyahM8y8WVV9xPWsD1vngihjFw=="} 
[2012-12-27T11:14:07+00:00] DEBUG: Sending HTTP Request via 
GET to api.opscode.com:443/organizations/agilewebops/ 
nodes/vagrant
[2012-12-27T11:14:09+00:00] DEBUG: ---- HTTP Status and 
Header Data: ---- 
[2012-12-27T11:14:09+00:00] DEBUG: HTTP 1.1 200 OK 
[2012-12-27T11:14:09+00:00] DEBUG: server: nginx/1.0.5 
[2012-12-27T11:14:09+00:00] DEBUG: date: Thu, 27 Dec 2012 

Inspecting the Result of the Last Chef-Client Run

In order to check the last Chef-Client run especially failure issues when we are developing a new cookbook, we need to know what exactly went wrong. Even though Chef prints everything in stdout, one might want to see the debug log again.

If we want to test, we need to have a broken cookbook which is failing on compilation.

user@server:~$ sudo chef-client 
================================================================== 
============== 
Recipe Compile Error in /srv/chef/file_store/cookbooks/my_ 
cookbook/recipes/default.rb 
================================================================== 
============== 
NoMethodError 
------------- 
undefined method `each' for nil:NilClass 
Cookbook Trace: 
--------------- 
/srv/chef/file_store/cookbooks/my_cookbook/recipes/default. 
rb:9:in `from_file' 
Relevant File Content: 
---------------------- 
/srv/chef/file_store/cookbooks/my_cookbook/recipes/default.rb: 
2: # Cookbook Name:: my_cookbook 
3: # Recipe:: default 
4: # 
5: # Copyright 2013, YOUR_COMPANY_NAME 
6: # 
7: # All rights reserved - Do Not Redistribute 
8: # 
9≫ nil.each {}  
10: 

For more details, we can look into the stacktrace.

user@server:~$ less /srv/chef/file_store/chef-stacktrace.out 
Generated at 2013-07-21 18:34:05 +0000 
NoMethodError: undefined method `each' for nil:NilClass 
/srv/chef/file_store/cookbooks/my_cookbook/recipes/default.rb:9:in 
`from_file' 
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/ 
mixin/from_file.rb:30:in `instance_eval' 
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/ 
mixin/from_file.rb:30:in `from_file' 
/opt/chef/embedded/lib/ruby/gems/1.9.1/gems/chef-11.4.4/lib/chef/ 
cookbook_version.rb:346:in `load_recipe'