[chef] Re: Re: renaming a role

[Chris Burroughs < >]

Thanks for the pointer.

I've put something together with knife-exec that seems to work. 
(Although warning to copy and pasters, has not been run in production yet.)


role_from = ARGV[2]  # format role[foo]'
role_to = ARGV[3]

if ARGV.length > 3 and ARGV[4] == 'dry-run'
  dry_run = true
else
  dry_run = false
end
puts role_from
nodes.all do |node|
  if node.run_list.include?(role_from)
    puts "match #{node}, current run_list #{node.run_list}"
    if node.run_list.include?(role_to)
      puts "ERROR #{node} has #{role_from} and #{role_to} skipping"
      next
    end
    pos = -1
    node.run_list.each_with_index do |item, index|
      if item == role_from
        pos = index
        break
      end
    end
    node.run_list.run_list_items[pos] = 
node.run_list.coerce_to_run_list_item(role_to)
    puts "\tchange @pos=#{pos} new run list #{node.run_list}"
    if dry_run == false
      node.save()
      puts "\tsaving node #{node}"
    end
  end
end

exit 0


On 04/25/2014 02:58 PM, Matt Ray wrote:
> Sounds like a job for knife exec?
> http://docs.opscode.com/knife_exec.html
>
> Thanks,
> Matt Ray
> Director of Partner Integration :: Chef
> 512.731.2218 :: 
>
>  
> mattray :: GitHub :: IRC :: Twitter
>
>
> On Fri, Apr 25, 2014 at 1:56 PM, Chris Burroughs
> <
>  >
>  wrote:
> > We have a bunch of roles called foo-abc-123 that we would like to rename
> > bar-abc-123.  I've done several naive searches like on how to rename or
> > change role names without finding anything.
> >
> > Obviously for local purposes I can do git mv && unload-new-name, but that
> > would leave all of the nodes with $OLD_NAME in a lurch.
> >
> > Ideally I'd like to find some sort of integrated rename mechanism. Lacking
> > that I think my question becomes: How do I change the run lists of all nodes
> > with role[foo] to role[bar] without changing anything else about the run
> > list?