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2e751c0772
the conversion procedure is simple: - find all things that look like options, ie calls to either `mkOption` or `lib.mkOption` that take an attrset. remember the attrset as the option - for all options, find a `description` attribute who's value is not a call to `mdDoc` or `lib.mdDoc` - textually convert the entire value of the attribute to MD with a few simple regexes (the set from mdize-module.sh) - if the change produced a change in the manual output, discard - if the change kept the manual unchanged, add some text to the description to make sure we've actually found an option. if the manual changes this time, keep the converted description this procedure converts 80% of nixos options to markdown. around 2000 options remain to be inspected, but most of those fail the "does not change the manual output check": currently the MD conversion process does not faithfully convert docbook tags like <code> and <package>, so any option using such tags will not be converted at all.
129 lines
3.3 KiB
Nix
129 lines
3.3 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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inherit (lib)
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concatStringsSep
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mkEnableOption mkIf mkOption types;
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cfg = config.services.https-dns-proxy;
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providers = {
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cloudflare = {
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ips = [ "1.1.1.1" "1.0.0.1" ];
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url = "https://cloudflare-dns.com/dns-query";
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};
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google = {
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ips = [ "8.8.8.8" "8.8.4.4" ];
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url = "https://dns.google/dns-query";
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};
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quad9 = {
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ips = [ "9.9.9.9" "149.112.112.112" ];
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url = "https://dns.quad9.net/dns-query";
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};
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};
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defaultProvider = "quad9";
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providerCfg =
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let
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isCustom = cfg.provider.kind == "custom";
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in
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lib.concatStringsSep " " [
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"-b"
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(concatStringsSep "," (if isCustom then cfg.provider.ips else providers."${cfg.provider.kind}".ips))
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"-r"
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(if isCustom then cfg.provider.url else providers."${cfg.provider.kind}".url)
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];
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in
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{
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meta.maintainers = with lib.maintainers; [ peterhoeg ];
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###### interface
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options.services.https-dns-proxy = {
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enable = mkEnableOption "https-dns-proxy daemon";
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address = mkOption {
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description = lib.mdDoc "The address on which to listen";
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type = types.str;
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default = "127.0.0.1";
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};
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port = mkOption {
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description = lib.mdDoc "The port on which to listen";
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type = types.port;
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default = 5053;
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};
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provider = {
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kind = mkOption {
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description = lib.mdDoc ''
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The upstream provider to use or custom in case you do not trust any of
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the predefined providers or just want to use your own.
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The default is ${defaultProvider} and there are privacy and security trade-offs
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when using any upstream provider. Please consider that before using any
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of them.
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If you pick a custom provider, you will need to provide the bootstrap
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IP addresses as well as the resolver https URL.
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'';
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type = types.enum ((builtins.attrNames providers) ++ [ "custom" ]);
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default = defaultProvider;
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};
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ips = mkOption {
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description = lib.mdDoc "The custom provider IPs";
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type = types.listOf types.str;
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};
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url = mkOption {
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description = lib.mdDoc "The custom provider URL";
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type = types.str;
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};
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};
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preferIPv4 = mkOption {
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description = lib.mdDoc ''
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https_dns_proxy will by default use IPv6 and fail if it is not available.
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To play it safe, we choose IPv4.
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'';
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type = types.bool;
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default = true;
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};
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extraArgs = mkOption {
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description = lib.mdDoc "Additional arguments to pass to the process.";
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type = types.listOf types.str;
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default = [ "-v" ];
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};
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};
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###### implementation
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config = lib.mkIf cfg.enable {
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systemd.services.https-dns-proxy = {
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description = "DNS to DNS over HTTPS (DoH) proxy";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = rec {
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Type = "exec";
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DynamicUser = true;
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ExecStart = lib.concatStringsSep " " (
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[
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"${pkgs.https-dns-proxy}/bin/https_dns_proxy"
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"-a ${toString cfg.address}"
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"-p ${toString cfg.port}"
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"-l -"
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providerCfg
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]
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++ lib.optional cfg.preferIPv4 "-4"
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++ cfg.extraArgs
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);
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Restart = "on-failure";
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};
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};
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};
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}
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