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https://github.com/nmasur/dotfiles
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52 lines
1.4 KiB
Nix
52 lines
1.4 KiB
Nix
# Wireguard is a VPN protocol that can be setup to create a mesh network
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# between machines on different LANs. This is currently not in use in my setup.
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{ config, pkgs, lib, ... }: {
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options.wireguard.enable = lib.mkEnableOption "Wireguard VPN setup.";
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config = lib.mkIf (pkgs.stdenv.isLinux) {
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networking.wireguard = {
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enable = config.wireguard.enable;
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interfaces = {
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wg0 = {
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# Something to use as a default value
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ips = lib.mkDefault [ "127.0.0.1/32" ];
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# Establishes identity of this machine
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generatePrivateKeyFile = false;
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privateKeyFile = config.secrets.wireguard.dest;
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# Move to network namespace for isolating programs
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interfaceNamespace = "wg";
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};
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};
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};
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# Create namespace for Wireguard
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# This allows us to isolate specific programs to Wireguard
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systemd.services."netns@" = {
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enable = config.wireguard.enable;
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description = "%I network namespace";
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before = [ "network.target" ];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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ExecStart = "${pkgs.iproute2}/bin/ip netns add %I";
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ExecStop = "${pkgs.iproute2}/bin/ip netns del %I";
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};
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};
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# Create private key file for wireguard
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secrets.wireguard = lib.mkIf config.wireguard.enable {
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source = ../../../private/wireguard.age;
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dest = "${config.secretsDirectory}/wireguard";
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};
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};
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}
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