Netbox 3.2 brings a FHRP group feature, we should look at using it instead of the current group_id custom field.
- Deploy Add FHRP group support to generate_dns_snippets
- Deploy Homer's Inital FHRP support
- Convert IPs by running T311218#8187891
- Open follow-up tasks (eg. managing priority with Netbox) T319301: Netbox: manage VRRP priorities