53 lines
1.4 KiB
Nix
53 lines
1.4 KiB
Nix
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{ config, lib, pkgs, ... }:
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let
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cfg = config.services.coredns;
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configFile = pkgs.writeText "Corefile" cfg.config;
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in {
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options.services.coredns = {
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enable = lib.mkEnableOption "Coredns dns server";
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config = lib.mkOption {
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default = "";
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example = ''
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. {
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whoami
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}
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'';
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type = lib.types.lines;
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description = ''
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Verbatim Corefile to use.
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See <https://coredns.io/manual/toc/#configuration> for details.
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'';
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};
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package = lib.mkPackageOption pkgs "coredns" { };
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extraArgs = lib.mkOption {
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default = [];
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example = [ "-dns.port=53" ];
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type = lib.types.listOf lib.types.str;
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description = "Extra arguments to pass to coredns.";
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};
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};
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config = lib.mkIf cfg.enable {
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systemd.services.coredns = {
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description = "Coredns dns server";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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PermissionsStartOnly = true;
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LimitNPROC = 512;
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LimitNOFILE = 1048576;
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CapabilityBoundingSet = "cap_net_bind_service";
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AmbientCapabilities = "cap_net_bind_service";
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NoNewPrivileges = true;
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DynamicUser = true;
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ExecStart = "${lib.getBin cfg.package}/bin/coredns -conf=${configFile} ${lib.escapeShellArgs cfg.extraArgs}";
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ExecReload = "${pkgs.coreutils}/bin/kill -SIGUSR1 $MAINPID";
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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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