[chef] Re: Re: Using platform_family in a provider?

[Christopher Armstrong < >]

Hmmm... maybe I need to put it in the library after all?

 NameError

       ---------

       undefined local variable or method `node' for #<Class:0x00000003117670>

       Cookbook Trace:

       ---------------

         /tmp/kitchen/cookbooks/java/providers/alternatives.rb:20:in `class_from_file'

       Relevant File Content:

       ----------------------

       /tmp/kitchen/cookbooks/java/providers/alternatives.rb:

        13:  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

        14:  # See the License for the specific language governing permissions and

        15:  # limitations under the License.

        16:

        17:  require 'chef/mixin/shell_out'

        18:  include Chef::Mixin::ShellOut

        19:

        20>> alternatives_cmd = node['platform_family'] == 'rhel' ? 'alternatives' : 'update-alternatives'

        21:

        22:  action :set do

        23:    if new_resource.bin_cmds

        24:      new_resource.bin_cmds.each do |cmd|

        25:

        26:        bin_path = "/usr/bin/#{cmd}"

        27:        alt_path = "#{new_resource.java_location}/bin/#{cmd}"

        28:        priority = new_resource.priority

        29:

On Tue, Dec 24, 2013 at 8:34 PM, Christopher Armstrong < " target="_blank"> > wrote:

Cool. Thanks Julian!

On Tue, Dec 24, 2013 at 5:41 PM, Julian C. Dunn < " target="_blank"> > wrote:

Hi Chris,

Providers do have access to the node object, but you must refer to it
directly e.g. node['platform_family'] . I don't believe the syntactic
sugar of platform_family? is available.

In library context you don't have access to the node object, so you
can either pass it in on object initialization (e.g.
https://github.com/socrata-cookbooks/java/blob/master/libraries/helpers.rb#L27)
or passing parameters on method invocation.

- Julian

On Tue, Dec 24, 2013 at 2:14 PM, Christopher Armstrong
< " target="_blank"> > wrote:
> Ohai Chefs,
>
> I'm doing some Christmas Eve hacking, and I think I'm not approaching
> something properly.
>
> Here is what I'm trying to do:
> https://github.com/socrata-cookbooks/java/pull/111/files
>
> Essentially, I need to conditionalize code in a provider based on the node's
> platform_family, but I don't believe I have access to the node objects or
> methods within a provider. I could pass it in as a parameter, but that seems
> clunky - the user of the provider shouldn't care about this detail. It's
> something I want to abstract.
>
> Could someone point me in the right direction? I still get confused about
> what Chef methods are available in recipes, libraries, providers, etc.
>
> Happy Holidays!
>
> Chris

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