Simon Bruder
c0efaa02ba
It doesn’t make sense to install the configuration files system-wide but the script only for the user.
73 lines
1.8 KiB
Nix
73 lines
1.8 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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relays = builtins.fromJSON (builtins.readFile ./relays.json);
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cfg = config.sbruder.mullvad;
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relayConfigs = lib.mapAttrs'
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(name: configuration: lib.nameValuePair "mullvad-${name}.conf" (with configuration; ''
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[Interface]
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DNS = ${cfg.dnsServer}
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[Peer]
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Endpoint = ${if cfg.ipVersion == 4 then endpoint4 else endpoint6}:${toString cfg.port}
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PublicKey = ${pubkey}
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AllowedIPs = 0.0.0.0/0,::0/0
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''))
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relays;
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# Creating 100+ files in a separate derivation each has too much overhead
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relayConfigFiles = pkgs.runCommandNoCC "etc-wireguard-mullvad" { } (''
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mkdir $out
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'' + (lib.concatStringsSep
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"\n"
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(lib.mapAttrsToList
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(name: content: ''
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cat > $out/${lib.escapeShellArg name} << EOF
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${content}
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EOF
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'')
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relayConfigs)));
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in
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{
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options.sbruder.mullvad = {
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enable = lib.mkEnableOption "wg-quick compatible configuration files in /etc/wireguard for Mullvad VPN";
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dnsServer = lib.mkOption {
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type = lib.types.str;
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default = "193.138.218.74";
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};
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ipVersion = lib.mkOption {
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type = lib.types.enum [ 4 6 ];
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default = 4;
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};
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port = lib.mkOption {
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type = lib.types.port;
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default = 51820;
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};
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};
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config = lib.mkIf cfg.enable {
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environment = {
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etc = builtins.listToAttrs
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(map
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(name: lib.nameValuePair "wireguard/${name}" { source = "${relayConfigFiles}/${name}"; })
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(lib.attrNames relayConfigs));
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systemPackages = lib.singleton (pkgs.stdenv.mkDerivation {
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name = "mullvad-on-demand";
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src = ./mullvad.sh;
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dontUnpack = true;
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dontBuild = true;
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installPhase = ''
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runHook preInstall
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install -D $src $out/bin/mullvad
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runHook postInstall
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'';
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});
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};
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};
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}
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