Will require a [documentation entry](https://docs.opennebula.io/6.6/marketplace/appliances/vnf.html#vnf-keepalived-context-param) to showcase the variable VROUTER_KEEPALIVED_NOTIFY_SCRIPT. Reference https://www.redhat.com/sysadmin/advanced-keepalived
_Originally posted by @dann1 in https://github.com/OpenNebula/addon-context-linux/pull/275#discussion_r1175844239_