105 lines
2.9 KiB
Nix
105 lines
2.9 KiB
Nix
{
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lib,
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config,
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pkgs,
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...
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}: let
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cfg = config.pub-solar.wireguard.private;
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in {
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options.pub-solar.wireguard.private = {
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ownIPs = lib.mkOption {
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description = ''
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Internal ips in wireguard used for cluster control-plane communication.
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'';
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type = lib.types.listOf lib.types.str;
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default = [];
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};
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privateKeyFile = lib.mkOption {
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description = ''
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Location of private key file
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'';
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type = lib.types.path;
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};
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useDNS = lib.mkOption {
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description = ''
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Whether to use the wireguard DNS
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'';
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default = true;
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type = lib.types.bool;
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};
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fullTunnel = lib.mkOption {
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description = ''
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Whether to tunnel all traffic through the wireguard VPN
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'';
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default = false;
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type = lib.types.bool;
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};
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};
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config = lib.mkIf (builtins.length cfg.ownIPs != 0) {
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networking.firewall.allowedUDPPorts = [51899];
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systemd.network.wait-online.ignoredInterfaces = ["wg-private"];
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systemd.services.wireguard-wg-private = import ./service-override.nix lib;
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networking.wireguard.interfaces = {
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wg-private = {
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listenPort = 51899;
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mtu = 1300;
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ips = cfg.ownIPs;
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privateKeyFile = cfg.privateKeyFile;
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postSetup =
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""
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+ (
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if cfg.useDNS
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then ''
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${pkgs.systemd}/bin/resolvectl dns wg-private 10.13.12.7 fd00:b12f:acab:1312:acab:7::
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${pkgs.systemd}/bin/resolvectl domain wg-private ~.
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''
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else ""
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)
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+ (
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if cfg.fullTunnel
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then ''
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defaultRoute=$(${pkgs.iproute2}/bin/ip r | ${pkgs.gnugrep}/bin/grep "default via" | head -n 1 | ${pkgs.gawk}/bin/awk '{ print $3 " " $4 " " $5 }')
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ipv4=$(${pkgs.dnsutils}/bin/dig +short A vpn.b12f.io)
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${pkgs.iproute2}/bin/ip route add $ipv4 metric 256 via $defaultRoute
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ipv6=$(${pkgs.dnsutils}/bin/dig +short AAAA vpn.b12f.io)
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${pkgs.iproute2}/bin/ip route add $ipv6 metric 256 via $defaultRoute
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ip -4 route delete default dev wg-private || true
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ip -4 route replace default dev wg-private metric 512
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ip -6 route delete default dev wg-private || true
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ip -6 route replace default dev wg-private metric 512
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''
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else ""
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);
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peers = [
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{
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# frikandel
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publicKey = "p6YKNYBlySKfhTN+wbSsKdoNjzko/XSAiTAlCJzP1jA=";
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allowedIPs =
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[
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"10.13.12.0/24"
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"fd00:b12f:acab:1312::/64"
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]
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++ (
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if cfg.fullTunnel
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then [
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"0.0.0.0/0"
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"::/0"
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]
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else []
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);
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endpoint = "vpn.b12f.io:51899";
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dynamicEndpointRefreshSeconds = 30;
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}
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];
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};
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};
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};
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}
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