[chef] Re: Re: NOT_IF and ONLY_IF validation problem.

[Seth Vargo < >]

Hi Carlos,

You also posted this question on StackOverflow: http://stackoverflow.com/questions/25406353/chef-not-if-and-only-if-validation-issue-in-windows-recipes.

I understand that you are trying to get the fastest answer possible, but posting the same question in multiple channels, you may discourage the chances of getting an answer. It gives a wry impression. Here's what I would recommend:

- If you have a question and you need an answer NOW, IRC is the best bet. You will get real-time communication with members of Chef and the Chef community.

- If you have a question that is about process, best practice, or opinion, this mailing list is probably your best bet. If you need to show code on the mailing list, using a service like PasteBin or GitHub Gist can make the email more readable.

- If you have a specific code example (i.e. why is this failing), StackOverflow/ServerFault are usually the best.

I realize there are definitely areas for overlap, so please use your best judgement.

Thanks,

Seth

On Aug 20, 2014, at 10:40 AM, Julian C. Dunn < " class=""> > wrote:

On Wed, Aug 20, 2014 at 8:16 AM, Carlos Camacho
< " style="font-family: HelveticaNeue; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""> > wrote:

Hello!

Im runing this simple recipe block to create a web app in IIS

powershell_script "create_site_my_site" do
   code "New-webapppool -name 'My_Web_App'; New-Website -Name
'My_Web_App' -applicationpool 'My_Web_App' -Port '80' -IPAddress *
-PhysicalPath 'c:\webs\My_Web_App'  "
   action :run
   not_if "get-website | where-object { $_.name -eq 'My_Web_App' }"
end


The problem here its that the NOT_IF part its allways True


PS C:\Users\carlos>
PS C:\Users\carlos> get-website | where-object { $_.name -eq 'asdfasdfasdf' }
PS C:\Users\carlos> echo $lastexitcode
1
PS C:\Users\carlos> get-website | where-object { $_.name -eq 'My_Web_App' }

Name               ID    State          Physical Path                Bindings
----                   --     -----             -------------
               --------
My_Web_App  6     Stopped      c:\webs\My_Web_App http *:80:

               https *:443:

PS C:\Users\carlos.camacho> echo $lastexitcode
1

Now, my question is about how to return True or False in the NOT_IF
depending on my code return value ??

Use the convert_boolean_return attribute in the powershell_script
resource to do the right thing. See the documentation for information
about what that does & why.

http://docs.getchef.com/resource_powershell_script.html

I imagine that this will become the default when :guard_interpreter
becomes :powershell by default for powershell_script.

- Julian

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