Keepalived is a robust load balancing and high availability solution for Linux distributions. An update has been released that improves upon keepalived’s scripting capabilities.
Excerpt from redhat errata website… “This update creates a new directory, /usr/libexec/keepalived/, in which the
user can place scripts executable by the keepalived service. These include both
tracking scripts and notification scripts. (BZ#1198432)”Learn More Here