[chef] RE: Re: Re: power shell and chef

[David Leaver < >]

I’ve used the win32 service rubygem like so:

 

gem install win32-service --no-rdoc --no-ri --verbose --platform x86-mswin32

 

 

powershell "Install Service: MyService" do

                code <<-EOH

                                c:

                                cd /WindowsServices/MyService /

                                ./Install.bat

                                sc.exe failure MyService reset= 0 actions= restart/60

                EOH

                not_if {Win32::Service.exists?("MyService")}

end

 

Which runs the powershell given if the service doesn’t exist.

 

Cheers,

Dave.

 

From: Sascha Bates [mailto:
Sent: Thursday, 23 February 2012 3:39 a.m.
To:
Subject: [chef] Re: Re: power shell and chef

 

Thanks, this helps.

On Tue, Feb 21, 2012 at 9:58 PM, Madhurranjan Mohaan < " target="_blank"> > wrote:

Some samples with the "windows_batch" resources:

 not_if { Registry.key_exists?('HKLM\\SOFTWARE\\Microsoft\\<your registry entry> ') }
 not_if { File.exists?("C:\\etc\\<something.txt>") }

I had problems with the Services bit , but with powershell you can get it to work using a Here Doc to get over a quotes within quotes problem . Eg, when you have to check for databases in sql server using "EXEC sp_databases" , you might have to add this in a here doc and use that in your only_if or not_if . What doesn't work is not_if " sqlcmd -S Localhost "Exec sp_databases" | grep <instance name> " but using the here doc in here would work well.

Also with powershell , in the not_if or only_if , you'll have to use "powershell.exe" -- for eg , not_if "powershell.exe <your command>" but a normal windows command line would work well.

Hope that helps.

 

On Wed, Feb 22, 2012 at 7:20 AM, Sascha Bates < " target="_blank"> > wrote:

Can anyone point me to some example chef code using not_if/only_if on windows/powershell blocks?  I have some ideas but I'm not sure they're very good.  I need to set up a service and make sure I don't kick off a reboot or anything crazy every time chef runs. 

 

Learning powershell syntax at the same time I'm wrangling chef for windows is not advised, but really, who am I kidding?  When would I have bothered otherwise?

 

Sascha