53 lines
1.4 KiB
Nix
53 lines
1.4 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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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 = mkEnableOption "Coredns dns server";
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config = 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 = types.lines;
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description = lib.mdDoc ''
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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 = mkOption {
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default = pkgs.coredns;
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defaultText = literalExpression "pkgs.coredns";
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type = types.package;
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description = lib.mdDoc "Coredns package to use.";
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};
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};
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config = 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 = "${getBin cfg.package}/bin/coredns -conf=${configFile}";
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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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