Anytime.
We run multiple environments and rather than have a central stack for Keepalived and HAProxy. We run both per environment, each with its own dedicated IP. We need the dedicated IP so we can serve a different SSL/TLS certificate over port 443 for each environment. If we just bound to 0:: we’d need to use non-standard ports for each cert we wanted to serve, which isn’t an option due to our client profile.