[chef] Re: Re: Re: How do I modify a local variable through ruby_block?

["Daniel S. Kim" < >]

Well, in simple terms, I have two tasks. First one is to mount a virtual disk onto my node, which is done through execute. Afterward, I want to run ruby code to iterate a mounted directory and run a regular _expression_ or search by file name. However, I cannot seem to get the result of this regular _expression_ matching nor the exact file name match. If I use Chef::Log.info() to print out the file name within the ruby block, it shows the result just fine. However, I cannot get this value outside this block. Let me know if any of you got a solution for this. I am more used to C language series and Java, so Ruby and Chef, both, are somewhat unfamiliar to me yet. Help will be much appreciated since I am hoping to solve this before tonight.

On Fri, Jun 22, 2012 at 9:04 PM, AJ Christensen < " target="_blank"> > wrote:

Some people use the node.run_state hash to store stuff like this in.

Why must you modify the scope-local variable in the ruby block?

--AJ

On 23 June 2012 15:56, Adam Jacob < "> > wrote:
> The issue here is that Chef builds a collection of resources, which it
> then iterates over. The block in the ruby block is not evaluated until
> much later. What exactly are you trying to accomplish?
>
> Adam
>
> On Fri, Jun 22, 2012 at 3:04 PM, Daniel S. Kim < "> > wrote:
>> Hello all,
>>
>> I am having hard time with a variable modification. See the snippet below:
>>
>> subdir = ""
>>
>> ruby_block "read target archive directory name" do
>>   block do
>>     Dir.foreach("/snapshot/#{dbSnapshotId}") do |f|
>>       unless(f.to_s.eql? ".")
>>         unless (f.to_s.eql? "..")
>>           Chef::Log.info("Timestamp: " + f.to_s)
>>           subdir = f.to_s
>>           node[:RestoreSubdir] = subdir
>>           node.save
>>         end
>>       end
>>     end
>>   end
>>   action :create
>> end
>>
>>
>> After the ruby_block, subdir is still an empty string. However, Chef::Log
>> shows a value otherwise. I also tried these other method in order to get
>> this String outside the ruby_block scope:
>> 1. script resource => variable modification undone once out of scope
>> 2. ruby_block resource => variable modification undone once out of scope
>> 3. separate recipe with ruby code => ruby code still runs 1st before
>> mounting the drive
>> 4. separate recipe with ruby_block/script => still cannot see the variable
>> modification once out of scope
>> 5. node.save within ruby_block => save doesn't occur until chef-client is
>> done running all the resources
>> 6. databag.save within ruby_block => save doesn't occur until chef-client is
>> done running all the resources
>>
>>
>> Any suggestion?
>>
>>
>>
>>
>> Regard,
>>
>> --
>> Daniel S. Kim
>>
>
>
>
> --
> Opscode, Inc.
> Adam Jacob, Chief Customer Officer
> T: (206) 619-7151 E: ">

-- 
Daniel S. Kim