let mkDefaultInterface = _: attrs: { ipv4 = [ ]; ipv6 = [ ]; gateways = [ ]; } // attrs; mkBase = config: config // { interfaces = builtins.mapAttrs mkDefaultInterface (config.interfaces or { }); }; getAddresses = version: interface: builtins.map (builtins.getAttr "address") interface.${version}; filterIPv4 = ip: builtins.substring 0 7 ip != "192.168"; filterIPv6 = _: true; mkNet = _: value: let base = mkBase value; in base // { addresses = let _addresses = builtins.foldl' ( { ipv4, ipv6 }: net: { ipv4 = ipv4 ++ getAddresses "ipv4" net; ipv6 = ipv6 ++ getAddresses "ipv6" net; } ) { ipv4 = [ ]; ipv6 = [ ]; } (builtins.attrValues base.interfaces); in _addresses // rec { publicV4 = builtins.filter filterIPv4 _addresses.ipv4; publicV6 = builtins.filter filterIPv6 _addresses.ipv6; public = publicV4 ++ publicV6; }; }; in builtins.mapAttrs mkNet { compute01 = { interfaces = { eno1 = { ipv4 = [ { address = "129.199.146.147"; prefixLength = 24; } { address = "192.168.1.147"; prefixLength = 24; } ]; gateways = [ "129.199.146.254" ]; }; }; hostId = "8df60941"; }; geo01 = { interfaces = { eno1 = { ipv4 = [ { address = "129.199.210.194"; prefixLength = 24; } ]; gateways = [ "129.199.210.254" ]; }; }; hostId = "b88fee0c"; dns = [ "129.199.96.11" "129.199.72.99" ]; }; geo02 = { interfaces = { eno1 = { ipv4 = [ { address = "129.199.210.69"; prefixLength = 24; } ]; gateways = [ "129.199.210.254" ]; }; }; hostId = "45d65237"; dns = [ "129.199.96.11" "129.199.72.99" ]; }; storage01 = { interfaces = { eno1 = { ipv4 = [ { address = "129.199.146.148"; prefixLength = 24; } { address = "192.168.1.148"; prefixLength = 24; } ]; gateways = [ "129.199.146.254" ]; }; }; hostId = "d4e7c369"; }; vault01 = { interfaces = { enp130s0f0 = { ipv4 = [ { address = "129.199.210.85"; prefixLength = 24; } ]; gateways = [ "129.199.210.254" ]; DHCP = "ipv4"; }; }; hostId = "e83b600d"; }; web01 = { interfaces = { ens3 = { ipv4 = [ { address = "129.199.129.53"; prefixLength = 24; } ]; gateways = [ "129.199.129.1" ]; }; }; hostId = "050df79e"; }; web02 = { interfaces = { ens3 = { ipv4 = [ { address = "129.199.129.235"; prefixLength = 24; } ]; gateways = [ "129.199.129.1" ]; }; }; hostId = "b431ca10"; }; }