[chef] Re: Re: Changing the order of 'run_list'

[Tiago Cruz < >]

Thanks Noah,

I was unable to config this as you said, but I'll post my ugly solution here to help someone in the future:

# add role 'base' before the main one after first run

ruby_block "Add base before web" do

  block {

    node.run_list.remove("role[web]")

    node.run_list.add("role[base]")

    node.run_list.add("role[web]")

  }

  not_if  { node.run_list.roles.include?('base') }

end

On Fri, Jun 5, 2015 at 3:17 PM, Noah Kantrowitz < " target="_blank"> > wrote:

This is not something you should generally do as changing the run list from inside recipe code probably won't have the effect you expect. Notably it won't have _any_ effect until the next run assuming the current one succeeds.

As to your specific question: node.run_list.run_list_items.insert(node.run_list.find('role[base']), 'role[web]'). You can find more information in the Ruby documentation for Array#insert and Enumerable#find.

--Noah

On Jun 5, 2015, at 11:09 AM, Tiago Cruz < "> > wrote:

> Hello Daniel, thanks for your time!
>
> Could you please help with some example? I think that I don't get yet :(
>
> - Try 1:
>
> node.run_list.add("role[base]", --before, "role[web]")
>
> [2015-06-05T17:51:29+00:00] ERROR: ruby_block[Add base before web] (test::web line 7) had an error: NoMethodError: undefined method `before' for Chef::Resource::RubyBlock
>
> - Try 2:
>
> node.run_list.add("role[base]", before, "role[web]")
>
> [2015-06-05T17:53:01+00:00] ERROR: ruby_block[Add base before web] (test::web line 7) had an error: NoMethodError: undefined method `before' for Chef::Resource::RubyBlock
>
> - Try 3:
>
> node.run_list.add("role[base]", "before", "role[web]")
>
> [2015-06-05T17:47:04+00:00] ERROR: ruby_block[Add base before web] (test::web line 7) had an error: ArgumentError: wrong number of arguments (3 for 1)
>
> Thanks!
>
> On Fri, Jun 5, 2015 at 12:19 PM, Daniel DeLeo < "> > wrote:
>
>
> On Friday, June 5, 2015 at 8:01 AM, Tiago Cruz wrote:
>
> > Ohai!
> >
> > To add one recipe before other, I can use:
> >
> > knife node run_list add lasvegas1 'role[base]' --before 'role[web]'
> >
> > But I can't do this using recipe:
> >
> > if not node.run_list.roles.include?('base')
> > ruby_block "Add base role before web" do
> > block { node.run_list.add("role[base]").before("role[web]") }
> > end
> > end
> >
> > How can I do this?
> >
> > Thanks!
> >
> > --
> > -- Tiago Cruz
>
> The run list is just a ruby array, use ruby’s Array methods for this.
>
> http://ruby-doc.org/core-2.2.0/Array.html#method-i-insert
>
> --
> Daniel DeLeo
>
>
>
>
>
>
> --
> -- Tiago Cruz
>

--

-- Tiago Cruz