[chef] Re: Re: managing windows services via chef

[Seth Chisamore < >]

Take a look at the 'Win32::Service.exists?' method in the 'win32-service' gem 
[0].  You could easily use this in a 'not_if' block.

As an FYI Chef 0.10.6 will ship with a heavily refactored Windows service 
provider:
http://tickets.opscode.com/browse/CHEF-2541

It leverages win32-service heavily and talks directly to the WinAPI vs 
shelling out to sc.exe.

-- 
Seth Chisamore
Software Design Engineer, Opscode, Inc.
IRC, Skype, Twitter, Github: schisamo

[0] https://github.com/djberg96/win32-service

On Monday, October 24, 2011 at 11:47 AM, Maven User wrote:

> Well, I got this to work (I think) - more testing now...
> 
> 
> only_if 0==`sc query WZCSVC \| find /C /I \"running\"`
> 
> 
> 
> On Mon, Oct 24, 2011 at 11:25 AM, Maven User 
> <
 
>  
> (mailto:
 )>
>  wrote:
> > I'm trying this approach, but it seems to wait for user input (and then 
> > doesn't see the whole command):
> > 
> > ruby_block "first-search" do
> > block do
> > puts "the service WZCSV was found"
> > end
> > action :create
> > only_if "sc query WZCSVC \| find /C /I \"running\""
> > end 
> > 
> > Is there something wrong with how I've phrased the "only_if portion of 
> > this ruby block?
> > 
> > It halts there and when I hit enter, it's as if something was not sent to 
> > the "sc" command:
> > 
> > [Mon, 24 Oct 2011 10:58:18 -0400] DEBUG: Executing sc query WZCSVC | find 
> > /C /I "running"
> > [Mon, 24 Oct 2011 11:00:18 -0400] DEBUG: ---- Begin output of sc query 
> > WZCSVC | find /C /I "running" ----
> > [Mon, 24 Oct 2011 11:00:18 -0400] DEBUG: STDOUT:
> > ERROR: Invalid Option
> > ....
> > [Mon, 24 Oct 2011 11:00:18 -0400] DEBUG: STDERR:
> > [Mon, 24 Oct 2011 11:00:18 -0400] DEBUG: ---- End output of sc query 
> > WZCSVC | find /C /I "running" ----
> > [Mon, 24 Oct 2011 11:00:18 -0400] DEBUG: Ran sc query WZCSVC | find /C /I 
> > "running" returned 0
> > the service WZCSV was found
> > [Mon, 24 Oct 2011 11:00:18 -0400] INFO: ruby_block[first-search] called
> > 
> > But that all looks healthy - any suggestions?
> > 
> > 
> > On Thu, Oct 20, 2011 at 2:48 PM, Maven User 
> > <
 
> >  
> > (mailto:
 )>
> >  wrote:
> > > Hello again all - 
> > > 
> > > First - thanks all for all the really helpful replies to any/all 
> > > earlier posts. I've been able to move pretty quickly because of the 
> > > help.
> > > 
> > > Now I have a tougher question.
> > > 
> > > I'm trying to work with a windows service for an item that we build and 
> > > install. 
> > > 
> > > This means stopping it if it exists, installing it if it doesn't and 
> > > then starting it if it isn't already running.
> > > 
> > > I've tried to make the only_if/not_if be a "sc query <servicename>", 
> > > but I'm seeing mixed results in different windows servers.
> > > 
> > > On Windows 7, if the service doesn't exist, I get a non-zero (1060) 
> > > return value, on Windows server 2003 (R2), I get 0 regardless if the 
> > > service exists or doesn't exist.
> > > 
> > > I've been thinking about just parsing the output of the "sc query" 
> > > command versus just relying on the return value, but this is starting 
> > > to feel kludgy.
> > > 
> > > Any suggestions?