[chef] Re: application_ruby database block and attributes

[Noah Kantrowitz < >]

On Jul 10, 2013, at 10:19 AM, Cassiano Leal wrote:

> Hi,
> 
> How do I pass parameters (preferably via attributes) to the database block 
> in the application_ruby cookbook?
> 
> What I want to do is something like:
> 
> application “my_app” do
>   ...
>   rails do
>   ...
>     database do
>       username node[:my_app][:db_user]
>       password node[:my_app][:db_password]
>     end
>   end
> end
> 
> It looks like the database block does not have access to the node object.
> 
> I have the application resource inside a definition, so I also tried to 
> pass parameters to it, like params[:db_user], but that does not work either.
> 
> How do I set those database parameters dynamically?

Its an issue with Ruby's method lookup order. Outside of that block (I 
usually just do it at the top of the file) do "blah = node[:my_app]" and then 
in the block you can do "username blah[:db_user]" and whatnot since then it 
knows that blah is a variable and not a method call :-( method_missing, got 
to love it!

--Noah

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