1. To delay keepalived startup with systemd:

a. Issue #1847
SYSTEMD_EDITOR=tee systemctl edit keepalived.service <<EOF
[Service]
ExecStartPre=/bin/sleep 5s
EOF

b. Issue #2570
ExecStartPre=/bin/bash -c 'until ip addr show eno1 | grep -q "inet"; do sleep 1; done'

