nixfiles/nixos/boxes/home/routing-common/keepalived.nix

42 lines
906 B
Nix

index: { lib, pkgs, ... }:
let
inherit (builtins) attrNames;
inherit (lib.my) net;
inherit (lib.my.c.home) prefixes vips;
vrrpIPs = family: map (vlan: {
addr = "${vips.${vlan}.${family}}/${toString (net.cidr.length prefixes.${vlan}.${family})}";
dev = "lan-${vlan}";
}) (attrNames vips);
mkVRRP = family: routerId: {
state = if index == 0 then "MASTER" else "BACKUP";
interface = "lan-core";
priority = 255 - index;
virtualRouterId = routerId;
virtualIps = vrrpIPs family;
};
in
{
services = {
keepalived = {
enable = true;
extraGlobalDefs = ''
vrrp_version 3
nftables keepalived
'';
vrrpInstances = {
v4 = mkVRRP "v4" 51;
v6 = mkVRRP "v6" 52;
};
extraConfig = ''
vrrp_sync_group main {
group {
v4
v6
}
}
'';
};
};
}