[chef] Re: Dynamically determine the role that specified the recipe

[Ash Berlin < >]

On 4 Feb 2012, at 20:44, Van Fossan,Randy wrote:

> I have been looking through other cookbooks to figure out  a way to get
> the name of the role from within a recipe and haven't found it.    I
> need a way to automatically remove the role from the nodes run list
> without knowing what that role name is in advance.    When the recipe is
> run, it would figure out which role it was specified in.
> 
> I have successfully used node.role?("myrole") to remove a specified role
> before.   However, I need to dynamically determine the role that
> specified the cookbook::recipe and then remove that role from the run
> list.
> 
> Thanks
>  Randy
> 

I use this snippet in my mysql cookbook to do permissions checks:

node[ :roles ].each do |role|
  next unless role =~ /-mysql-master$/
end

This loops over all roles currently assigned to the node. I'm fairly sure 
that it includes the fully expanded role list (i.e. roles added to the run 
list from inside another role.)

-ash