[chef] Re: Re: Re: RE: Ohai Plugin Running External Commands

[Douglas Garstang < >]

Dennis,

Of course. It's just translating that into something that ohai runs and returns as a dictionary that's tricky. The plugin also has to run the aws cli to get it's environment and role and feed that back into the describe-instances to get a list of matching instances. It seems like a rather clunky approach. I certainly don't want to run chef search due to the whole having-to-have-already run thing, which means the chef client has to then get run multiple times. Not scalable.

Douglas.

On Wed, Dec 3, 2014 at 10:31 AM, Dennis Lovely < " target="_blank"> > wrote:

You can search with AWS CLI:

ec2-describe-instances --filter "tag:YourTagName=YourRequestedValue"

Is this what you're looking for?

hth

-Dennis

On Wed, Dec 3, 2014 at 10:20 AM, Douglas Garstang < " target="_blank"> > wrote:

Thanks.

I was actually trying to get a list of ec2 instances having tags with specific values. I don't want to use chef search due to the requirement that all the nodes must have successfully completed a chef run first.

Douglas.

On Wed, Dec 3, 2014 at 8:45 AM, Jeremy Mauro < " target="_blank"> > wrote:

Here is one of our ohai :

lspci = Mixlib::ShellOut.new(

    'lspci -m',

<%  if node['platform_family'] == 'windows' -%>

    :cwd => "<%= node[:pciutils][:path] %>",

<% end -%>

  )

  lspci.run_command

  stdout, stderr = [lspci.stdout, lspci.stderr]

 

 

 

 

 

From: Douglas Garstang [mailto: " target="_blank"> ]
Sent: mercredi 3 décembre 2014 17:28
To: " target="_blank">
Subject: [chef] Ohai Plugin Running External Commands

 

Has anyone got any examples of custom ohai plugins calling external shell commands in ruby and returning the result? Having trouble with it. Need to pull some EC2 tags into chef (via AWS CLI) and an ohai plugin seemed like the right idea.

Doug

--

Regards,

Douglas Garstang
http://www.linkedin.com/in/garstang
Email: " target="_blank">
Cell: +1-805-340-5627

--

Regards,

Douglas Garstang
http://www.linkedin.com/in/garstang
Email: ">
Cell: +1-805-340-5627