[chef] Re: Making available configuration data of Database node to the WebApp node

[Denis Weerasiri < >]

Hi, I could not mention the main focus of my exercise. I am trying to find a way to expose some runtime data of a particular node (eg- access credentials to MySQL database) to another node (eg- PHP node.). I thought the "variable" construct is a mechanism to access dynamic data across different nodes.

On Thu, Jul 3, 2014 at 2:59 PM, Denis Weerasiri < " target="_blank"> > wrote:

Hi,

I am trying to learn cookbook language by writing a cookbook to set up a LAMP stack in two different nodes for MySQL and PHP.

I was looking at this https://github.com/amazonwebservices/opsworks-example-cookbooks/blob/master/phpapp/recipes/appsetup.rb and it has 

variables(
      :host =>     (deploy[:database][:host] rescue nil),


      :user =>     (deploy[:database][:username] rescue nil),


      :password => (deploy[:database][:password] rescue nil),


      :db =>       (deploy[:database][:database] rescue nil),


      :table =>    (node[:phpapp][:dbtable] rescue nil)


    )

Does any body knows what this "variable" construct tries to do? I don't understand what is meant by "=>" and "deploy" means in this recipe.

--

Thanks,
Denis 

--

Thanks,
Denis Weerasiri

Sent from my iPhone