[ClusterLabs] Does pacemaker support to receive the event of VIP changes?

[Qing Feng Hao]

Hi Everyone,

I have setup a HA cluster with pacemaker, and want to so some special 
handling when VIP (virtualip) changes. VIP is the virtual ip resource 
created by pcs like "* virtualip   (ocf::heartbeat:IPaddr2):        
Started <node ip>"

But I didn't find it in ClusterMon 
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/configuring_the_red_hat_high_availability_add-on_with_pacemaker/s1-eventnotification-haar, 
this only mentions the fence event.  I also checked 
"./pacemaker/agents/ocf/ClusterMon.in":

|<parameter name="extra_options"> <longdesc lang="en"> Additional 
options to pass to crm_mon. Eg. -n -r </longdesc> <shortdesc 
lang="en">Extra options</shortdesc> <content type="string" default="" /> 
</parameter> |

Does anyone know if pacemaker support this kind of event notification 
and how to subscribe? Thanks a lot.

Best regards

QingFeng Hao

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