[ClusterLabs Developers] RFC: New stonith agent for pacemaker clusters running on virtual machines which are managed by ganeti

Dejan Muhamedagic dejanmm at fastmail.fm
Mon Oct 10 14:56:45 UTC 2016


Hi Dominik,

On Fri, Oct 07, 2016 at 02:50:10PM +0200, Dominik Klein wrote:
> Hi there
> 
> I wrote an agent that should be (_is_ in my environment) able to
> implement stonith in a pacemaker cluster running on ganeti-powered
> virtual machines. It talks to the ganeti api.
> 
> I did not do this with the xvm agent since it would (from what I
> understand) require a second control instance on the physical machines
> which might interfere with ganeti (expected machine states will likely
> be different in a shooting scenario).
> 
> Any feedback is appreciated.
> 
> Example configuration:
> 
> Place the script in /usr/lib/stonith/plugins/external/ganeti and
> configure this fencing resource:
> 
> primitive fencing stonith:external/ganeti \
> params \
> ganeti_api_port=5080 \
> ganeti_api_transport=https \
> ganeti_auth_password=seeeeCret \
> ganeti_auth_user=overlord \
> ganeti_cluster=ganeti.example.com \
> ganeti_curl_ignore_ssl_errors=true \
> op monitor interval=120s

Why the "ganeti" prefix for parameters? It is anyway within the
ganeti plugin's scope.

I'll take a look at the code too.

Cheers,

Dejan

> 
> Thanks
> Dominik


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