[chef] Re: Re: Re: Re: Re: Re: Converging Attributes before first chef-client run

[Daniel DeLeo < >]

>> You can probably achieve your goal of getting the attributes to be
>> applied using something like this:
>>
>>  knife exec -E 'n = nodes.show("i-ec308f81"); n.expand!; n.save'
>
> That's brilliant - a great (and fast!) one-liner to achieve almost
> exactly what I need :-)
>
> Poking at it for few minutes, I notice an interesting departure from
> shef's "become_node; node.save" behaviour: the knife call doesn't
> /remove/ attributes that've been deleted from included (in my case,
> nested) roles.  Is this by design?

You need to add a call to Node#reset_defaults_and_overrides

Note also that you can write your knife exec scripts as a file and run
them with `knife exec path/to/script.rb`. There's not any elegant way
to pass arguments to these scripts but you can use environment
variables, so you could do `NODE_NAME=foo knife exec myscript.rb` and
get the node name in the script via ENV['NODE_NAME']`

>
> Jonathan

Dan DeLeo