[chef] RE: Re: Re: LWRP for N00bs

[Martin Smith < >]

Hello!

One thing I've noticed is that folks trying to implement something like a 'service' resource always have better luck with an HWRP where they can actually subclass a real service resource class. It seems like LWRPs that try to imitate a service-like resource almost always fall short due to limitations in notifications.

Is it a best practice to prefer HWRPs that extend existing service resources and/or providers over LWRPs that try to expose service-like functionality?

Cheers,

- Martin

---

From: Ameir Abdeldayem
Sent: Wednesday, August 27, 2014 6:25 AM
To:
Subject: [chef] Re: Re: LWRP for N00bs

While we're on the topic, what are some pros/cons to writing resources in the "libraries" directory vs "true" LWRP style in the "resources" and "providers" directories?  I see that a lot of Sean's contributions go the "libraries" route, but there's a pretty diverse mix community-wide (with most seeming to be "true" LWRP style).

-Ameir

On Wed, Aug 27, 2014 at 1:17 AM, Julian C. Dunn < " target="_blank"> > wrote:

The conversion logic is here:
https://github.com/opscode/chef/blob/master/lib/chef/mixin/convert_to_class_name.rb#L25-L43

TL;DR: "web_serverwebserver" is gonna get converted to
"WebServerwebserver", so the class you're looking for is
Chef::Resource::WebServerwebserver

- Julian

On Tue, Aug 26, 2014 at 10:45 PM, Brian < " target="_blank"> > wrote:

> I'm trying to figure out why Chef is not correctly loading my lwrps.
>
> So I'm trying to build a custom lwrp in my recipe.
>
> I have a cookbook named web_server. I have a resource called webserver. (real
> original, I know.).
>
> I'm getting a NameError when I try to use web_serverwebserver in a recipe.   I
> suspect I'm doing something wrong in my load_current_resource, but I don't know
> what.
>
> my load_current_resource
>
> def load_current_resource
>   @current_resource = web_serverwebserver.new(@new_resource.AppName)
>       @current_resource
> end
> I have tried
>
> web_server::webserver.
> Chef::Resource::webserver
> Chef::Resource::web_server::webserver
> and pretty much everything else I can think of. What am I doing wrong here?
>
> Is there a good way to get Chef to report why it can't seem to find my
> resource?
> -l debug doesn't seem to provide much in the way of detail as to why it can't
> find my lwrp.

--
[ Julian C. Dunn < " target="_blank"> >          * Sorry, I'm    ]
[ WWW: http://www.aquezada.com/staff/julian    * only Web 1.0  ]
[ gopher://sdf.org/1/users/keymaker/           * compliant!    ]
[ PGP: 91B3 7A9D 683C 7C16 715F 442C 6065 D533 FDC2 05B9       ]