[chef] Re: Re: Re: Really? What am I missing?

[Daniel Condomitti < >]

You can also do the same thing with shef and isolate individual recipes. 

http://wiki.opscode.com/display/chef/Shef
http://www.juliandunn.net/2012/10/19/an-introduction-to-shef-the-chef-shell/
http://stevendanna.github.com/blog/2012/01/28/shef-debugging-tips-1/
https://github.com/bryanwb/chef-rewind


On Friday, December 7, 2012 at 10:33 AM, Brasic, Carl wrote:

> One thing I find helpful when debugging these sort of issues is pry[1].
> 
> If the node you're running chef-client on has the pry gem installed
> and available to chef, you can just include
> 
> require 'pry'
> binding.pry
> 
> in your recipe wherever you want to set up a breakpoint -- when
> chef-client runs, you get dropped into an irb-like shell at that point
> in the code where you can inspect variables like node and run
> arbitrary code in the context of the compile phase (or in execute
> phase if you invoke pry in a ruby_block). Type 'exit' and the chef
> run will continue. You can even do things like update the node
> variable to test that some change you might later make in
> attributes.rb will work.
> 
> It's much more convenient than the debug statement/re-upload
> strategy that I was using before.
> 
> Carl
> 
> [1] https://github.com/pry/pry
> 
> On Thu, Dec 6, 2012 at 11:53 PM, Warren Bain 
> <
 
>  
> (mailto:
 )>
>  wrote:
> > Mark,
> > 
> > As a chef n00b I get lots of these. The attribute you are referencing 
> > doesn't exist and so node[:sgbase] which is nil doesn't have a method 
> > [:branch]. Hence the slightly confusing error.
> > 
> > Wazza
> > 
> > 
> > Warren Bain
> > http://ninefold.com
> > Australia's cloud
> > direct: +61 2 8221 7729
> > mobile: +61 414 867 559
> > follow: http://twitter.com/thoughtcroft
> > 
> > Mark J Bradakis 
> > <
 
> >  
> > (mailto:
 )>
> >  wrote:
> > So I get this error:
> > 
> > NoMethodError
> > -------------
> > undefined method `[]' for nil:NilClass
> > 
> > 
> > Which comes from this line:
> > 
> > 627>> revision node[:sgbase][:branch]
> > 
> > Called by a recipe in a file that does this:
> > 
> > "cookbook_versions": {
> > "cpan": "= 1.0.0",
> > "apt": "= 1.0.0",
> > "sgbase": "= 1.0.0",
> > "branch": "= 1.0.0"
> > ...
> > 
> > 
> > sgbase and branch ARE defined - why the NULL error?
> > 
> > 
> > mjb.