nixpkgs/nixos/modules/services/networking/dnscrypt-proxy2.nix

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{ config, lib, pkgs, ... }: with lib;
let
cfg = config.services.dnscrypt-proxy2;
in
{
options.services.dnscrypt-proxy2 = {
enable = mkEnableOption "dnscrypt-proxy2";
settings = mkOption {
description = ''
Attrset that is converted and passed as TOML config file.
For available params, see: <link xlink:href="https://github.com/DNSCrypt/dnscrypt-proxy/blob/master/dnscrypt-proxy/example-dnscrypt-proxy.toml"/>
'';
example = literalExample ''
{
sources.public-resolvers = {
urls = [ "https://download.dnscrypt.info/resolvers-list/v2/public-resolvers.md" ];
cache_file = "public-resolvers.md";
minisign_key = "RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3";
refresh_delay = 72;
};
}
'';
type = types.attrs;
default = {};
};
configFile = mkOption {
description = ''
Path to TOML config file. See: <link xlink:href="https://github.com/DNSCrypt/dnscrypt-proxy/blob/master/dnscrypt-proxy/example-dnscrypt-proxy.toml"/>
If this option is set, it will override any configuration done in options.services.dnscrypt-proxy2.settings.
'';
example = "/etc/dnscrypt-proxy/dnscrypt-proxy.toml";
type = types.path;
default = pkgs.runCommand "dnscrypt-proxy.toml" {
json = builtins.toJSON cfg.settings;
passAsFile = [ "json" ];
} ''
${pkgs.remarshal}/bin/json2toml < $jsonPath > $out
'';
defaultText = literalExample "TOML file generated from services.dnscrypt-proxy2.settings";
};
};
config = mkIf cfg.enable {
networking.nameservers = lib.mkDefault [ "127.0.0.1" ];
systemd.services.dnscrypt-proxy2 = {
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
AmbientCapabilities = "CAP_NET_BIND_SERVICE";
DynamicUser = true;
ExecStart = "${pkgs.dnscrypt-proxy2}/bin/dnscrypt-proxy -config ${cfg.configFile}";
Restart = "always";
};
};
};
}