mirror of
https://github.com/NixOS/nixpkgs.git
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667d42c00d
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev 57b193d8dd
result/bin/apply-formatting $NIXPKGS_PATH
124 lines
3.3 KiB
Nix
124 lines
3.3 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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let
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cfg = config.services.dnscache;
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dnscache-root = pkgs.runCommand "dnscache-root" { preferLocalBuild = true; } ''
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mkdir -p $out/{servers,ip}
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${lib.concatMapStrings (ip: ''
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touch "$out/ip/"${lib.escapeShellArg ip}
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'') cfg.clientIps}
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${lib.concatStrings (
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lib.mapAttrsToList (host: ips: ''
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${lib.concatMapStrings (ip: ''
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echo ${lib.escapeShellArg ip} >> "$out/servers/"${lib.escapeShellArg host}
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'') ips}
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'') cfg.domainServers
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)}
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# if a list of root servers was not provided in config, copy it
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# over. (this is also done by dnscache-conf, but we 'rm -rf
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# /var/lib/dnscache/root' below & replace it wholesale with this,
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# so we have to ensure servers/@ exists ourselves.)
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if [ ! -e $out/servers/@ ]; then
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# symlink does not work here, due chroot
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cp ${pkgs.djbdns}/etc/dnsroots.global $out/servers/@;
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fi
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'';
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in
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{
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###### interface
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options = {
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services.dnscache = {
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enable = lib.mkOption {
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default = false;
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type = lib.types.bool;
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description = "Whether to run the dnscache caching dns server.";
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};
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ip = lib.mkOption {
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default = "0.0.0.0";
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type = lib.types.str;
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description = "IP address on which to listen for connections.";
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};
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clientIps = lib.mkOption {
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default = [ "127.0.0.1" ];
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type = lib.types.listOf lib.types.str;
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description = "Client IP addresses (or prefixes) from which to accept connections.";
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example = [
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"192.168"
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"172.23.75.82"
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];
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};
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domainServers = lib.mkOption {
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default = { };
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type = lib.types.attrsOf (lib.types.listOf lib.types.str);
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description = ''
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Table of {hostname: server} pairs to use as authoritative servers for hosts (and subhosts).
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If entry for @ is not specified predefined list of root servers is used.
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'';
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example = lib.literalExpression ''
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{
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"@" = ["8.8.8.8" "8.8.4.4"];
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"example.com" = ["192.168.100.100"];
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}
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'';
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};
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forwardOnly = lib.mkOption {
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default = false;
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type = lib.types.bool;
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description = ''
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Whether to treat root servers (for @) as caching
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servers, requesting addresses the same way a client does. This is
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needed if you want to use e.g. Google DNS as your upstream DNS.
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'';
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};
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};
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};
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###### implementation
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config = lib.mkIf config.services.dnscache.enable {
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environment.systemPackages = [ pkgs.djbdns ];
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users.users.dnscache = {
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isSystemUser = true;
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group = "dnscache";
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};
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users.groups.dnscache = { };
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systemd.services.dnscache = {
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description = "djbdns dnscache server";
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wantedBy = [ "multi-user.target" ];
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path = with pkgs; [
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bash
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daemontools
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djbdns
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];
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preStart = ''
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rm -rf /var/lib/dnscache
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dnscache-conf dnscache dnscache /var/lib/dnscache ${config.services.dnscache.ip}
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rm -rf /var/lib/dnscache/root
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ln -sf ${dnscache-root} /var/lib/dnscache/root
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'';
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script = ''
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cd /var/lib/dnscache/
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${lib.optionalString cfg.forwardOnly "export FORWARDONLY=1"}
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exec ./run
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'';
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};
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};
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}
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