[chef] Re: Re: Re: Notifying Resources within Ruby Block Resource

[Bryan Baugher < >]

I just ran into this problem myself. It seems that notifications are only handled by Chef::Runner, in which the runner holds the list of notifications (in order to check for duplicates) and only its run_action command can write to the list of notifications. 

So when you run, r.run_action you are running the resource without the runner meaning the notification won't be handled.

I spent awhile trying to find a way to inject a resource into the runner's list of resources or get access to the runner itself but for obvious reasons you can't (or it is difficult). 

One hack I found that does work is this,

ruby_block 'obligatory_foo' do
        block do
                delete.each do |f|
                        r = Chef::Resource::File.new((plugin_conf_path + f).to_s, run_context)
                       r.run_action
                       self.notifies :reload, service
                       self.resolve_notification_references
               end
       end
end

This actually uses the parent ruby block  'obligatory_foo' to make the notification call, in which self refers to the ruby_block[obligatory_foo].

Bryan

On Wed, Nov 23, 2011 at 3:59 PM, Allan Wind < "> > wrote:

On 2011-11-14 18:44:35, Bryan McLellan wrote:
> # At run time
> ruby_block "foo" do
>   block do
>     resources(:service => "apache2").run_action(:restart)
>   end
> end

Any idea why this does not work for a dynamically defined
resource?

service = "service[daemon_foo]"

ruby_block 'obligatory_foo' do
       block do
               delete.each do |f|
                       r = Chef::Resource::File.new((plugin_conf_path + f).to_s, run_context)
                       r.notifies :reload, service
                       r.run_action :delete
               end
       end
end

service 'daemon_foo' do
       action [ :enable, :start ]
       supports :reload => true
end

The delete works just fine but notification goes to /dev/null, and the daemon
is restarted if the normal compile time resources trigger a reload.


/Allan
--
Allan Wind
Life Integrity, LLC
<http://lifeintegrity.com>