Executing Script between Failover

Hi,

While configuring the Failover between two machine does HaProxy has any future to execute the Script Just after the Failover and before 2nd server start serving request.

What I needed here Whenever Failover happens I want to call Monitoring URL and it will be called every time whenever failover happens. URL is sending alert to intimate that Failover happen.

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Prasad S. Wani