[chef] Re: Installing handlers with chef_handler

[Seth Chisamore < >]

Zac,
 You may have stumbled across a bug. I will try to recreate and open a COOK 
ticket if appropriate. 

The JsonFile handler should drop a JSON file in '/var/chef/reports' when it 
fires.

Also, we recommend you get cookbooks from the community site using 'knife 
cookbook site install' or 'knife cookbook site download'. The repository you 
forked, github.com/cookbooks is not an Opscode account, and we don't know 
what the state of the cookbooks in that repository might be. Opscode 
maintains the GitHub repository for development tracking, but not for 
released versions of cookbooks we can support. We push the released versions 
to community.opscode.com. For more information see. 

Seth

-- 
Opscode, Inc.
Seth Chisamore, Senior Technical Evangelist
IRC, Skype, Twitter, Github: schisamo


[0] http://www.opscode.com/blog/2011/05/05/future-of-opscode-cookbooks/ ;

On Thursday, July 21, 2011 at 10:38 AM, Zac Stevens wrote:

> Hiya,
> 
> I would like to write a simple chef report handler, to distribute it
> to my chef clients, and to get chef-client to use it.
> 
> The documentation
> (http://wiki.opscode.com/display/chef/Exception+and+Report+Handlers)
> points out the chef_handler cookbook, which exists to distribute and
> install handlers. That's exactly what I want to do, but I can't get
> it to work.
> 
> jtimberman blogged a very simple report handler example:
> http://jtimberman.posterous.com/a-simple-report-handler
> 
> I added this to my fork of the chef_handler repo
> (https://github.com/zts/chef_handler/) and made sure that
> recipe[chef_handler] would distribute the file - which it did. I then
> configured /etc/chef/client.rb per the blog, and confirmed that the
> handler worked:
> <--snip-->
> [Thu, 21 Jul 2011 15:14:52 +0100] INFO: Running report handlers
> [Thu, 21 Jul 2011 15:14:52 +0100] INFO: Resources updated this run:
> [Thu, 21 Jul 2011 15:14:52 +0100] INFO: remote_directory[/var/chef/handlers]
> [Thu, 21 Jul 2011 15:14:52 +0100] INFO: Report handlers complete
> 
> However, I'd prefer not to be editing client.rb when the chef_handler
> cookbook has a provider for this purpose.
> I reverted the changes to client.rb, and added a recipe -
> chef_handler::updated_resources. It looks like this:
>  chef_handler "SimpleReport::UpdatedResources" do
>  Chef::Log.info (http://Log.info) "Loading handler from:
> #{node['chef_handler']['handler_path']}/updated_resources.rb"
>  source "#{node['chef_handler']['handler_path']}/updated_resources.rb"
>  action :nothing
>  end.run_action(:enable)
> 
> Then set it as my run_list:
> $ knife node show kakistos.local -a run_list
> run_list: recipe[chef_handler::updated_resources]
> 
> Unfortunately, it blows up:
> [Thu, 21 Jul 2011 15:19:24 +0100] INFO: Loading handler from:
> /var/chef/handlers/updated_resources.rb
> [Thu, 21 Jul 2011 15:19:24 +0100] INFO: Processing
> chef_handler[SimpleReport::UpdatedResources] action enable
> (chef_handler::updated_resources line 4)
> [Thu, 21 Jul 2011 15:19:24 +0100] ERROR:
> chef_handler[SimpleReport::UpdatedResources]
> (chef_handler::updated_resources line 4) has had an error
> 
> And the stacktrace:
> NameError: chef_handler[SimpleReport::UpdatedResources]
> (chef_handler::updated_resources line 4) had an error: uninitialized
> constant Kernel::SimpleReport
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb:22:in 
> `const_get'
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb:22:in
> `block (2 levels) in class_from_file'
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb:22:in `each'
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb:22:in `inject'
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb:22:in
> `block in class_from_file'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/provider.rb:104:in
> `instance_eval'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/provider.rb:104:in
> `block in action'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/resource.rb:417:in
> `run_action'
> /var/chef/cache/cookbooks/chef_handler/recipes/updated_resources.rb:8:in
> `from_file'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/mixin/from_file.rb:30:in
> `instance_eval'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/mixin/from_file.rb:30:in
> `from_file'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/cookbook_version.rb:578:in
> `load_recipe'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/mixin/language_include_recipe.rb:40:in
> `block in include_recipe'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/mixin/language_include_recipe.rb:27:in
> `each'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/mixin/language_include_recipe.rb:27:in
> `include_recipe'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/run_context.rb:72:in
> `block in load'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/run_context.rb:69:in
> `each'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/run_context.rb:69:in
> `load'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/client.rb:195:in
> `setup_run_context'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/client.rb:159:in
> `run'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/application/client.rb:239:in
> `block in run_application'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/application/client.rb:229:in
> `loop'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/application/client.rb:229:in
> `run_application'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/lib/chef/application.rb:66:in
> `run'
> /Users/zts/.rvm/gems/
 /gems/chef-0.10.2/bin/chef-client:26:in
> `<top (required)>'
> /Users/zts/.rvm/gems/
 /bin/chef-client:19:in
>  `load'
> /Users/zts/.rvm/gems/
 /bin/chef-client:19:in
>  `<main>'
> 
> Questions:
>  * Have I made a mistake, or am I hitting a bug?
>  * Am I going about this the right way?
> 
> Undeterred, and assuming that perhaps that would be an obvious fault
> to someone more familiar with ruby, I changed tack and tried the
> chef_handler::json_file recipe. This is documented as enabling the
> JsonFile report handler which is bundled with chef. While it doesn't
> explode, it doesn't appear to do anything either:
> [Thu, 21 Jul 2011 14:55:35 +0100] INFO: Run List expands to
> [chef_handler::json_file]
> [Thu, 21 Jul 2011 14:55:35 +0100] INFO: Starting Chef Run for kakistos.local
> [Thu, 21 Jul 2011 14:55:37 +0100] INFO: Loading cookbooks [chef_handler]
> [Thu, 21 Jul 2011 14:55:37 +0100] INFO: Processing
> chef_handler[Chef::Handler::JsonFile] action enable
> (chef_handler::json_file line 24)
> [Thu, 21 Jul 2011 14:55:37 +0100] INFO: Processing
> chef_handler[Chef::Handler::JsonFile] action nothing
> (chef_handler::json_file line 24)
> [Thu, 21 Jul 2011 14:55:40 +0100] INFO: Chef Run complete in 4.402447 
> seconds
> [Thu, 21 Jul 2011 14:55:40 +0100] INFO: Running report handlers
> [Thu, 21 Jul 2011 14:55:40 +0100] INFO: Report handlers complete
> 
> The relevant chunk of the debug output:
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Loading cookbook
> chef_handler's providers from
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Loaded contents of
> /var/chef/cache/cookbooks/chef_handler/providers/default.rb into a
> provider named chef_handler defined in Chef::Provider::ChefHandler
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Loading cookbook
> chef_handler's resources from
> /var/chef/cache/cookbooks/chef_handler/resources/default.rb
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Loaded contents of
> /var/chef/cache/cookbooks/chef_handler/resources/default.rb into a
> resource named chef_handler defined in Chef::Resource::ChefHandler
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Node kakistos.local loading
> cookbook chef_handler's attribute file
> /var/chef/cache/cookbooks/chef_handler/attributes/default.rb
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Loading Recipe
> chef_handler::json_file via include_recipe
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Found recipe json_file in
> cookbook chef_handler
> [Thu, 21 Jul 2011 14:58:46 +0100] INFO: Processing
> chef_handler[Chef::Handler::JsonFile] action enable
> (chef_handler::json_file line 24)
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Chef::Handler::JsonFile has
> not been loaded
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Converging node kakistos.local
> [Thu, 21 Jul 2011 14:58:46 +0100] INFO: Processing
> chef_handler[Chef::Handler::JsonFile] action nothing
> (chef_handler::json_file line 24)
> [Thu, 21 Jul 2011 14:58:46 +0100] DEBUG: Doing nothing for
> chef_handler[Chef::Handler::JsonFile]
> 
> Questions:
>  * Should this have done something?
>  * How should I approach debugging this issue? (I'm really not sure
> where to start)
> 
> All examples above are 0.10.2, on OS X, installed from gems. I've
> also tried to get this working on an ubuntu VM, but met with exactly
> the same results.
> 
> Thanks,
> 
> 
> Zac