62 lines
1.7 KiB
Nix
62 lines
1.7 KiB
Nix
{ lib, pkgs, config, ... }:
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{
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options.services.zmotd = {
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enable = lib.mkEnableOption "zmotd";
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interval = lib.mkOption {
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default = "5m";
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example = "5m";
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description = "Change the timing of zmotd runs.";
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type = lib.types.str;
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};
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config = lib.mkOption {
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default = {
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entries = [
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{ m = "hostname"; f = "fig"; }
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{ m = "distro"; }
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{ m = "kernel"; }
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{ m = "load"; }
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{ m = "uptime"; }
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];
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};
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type = lib.types.attrsOf lib.types.anything;
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};
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motdFile = lib.mkOption {
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default = "/etc/motd";
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description = "Change the where zmotd outputs to.";
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};
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};
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config = lib.mkIf config.services.zmotd.enable {
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users.motdFile = config.services.zmotd.motdFile;
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systemd.services.zmotd = {
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description = "Generate dynamic MOTD using zmotd";
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enable = config.services.zmotd.enable;
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serviceConfig = {
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Type = "oneshot";
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User = "root";
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Group = "root";
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ExecStart = let
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motdFile = config.services.zmotd.motdFile;
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configFile = pkgs.writers.writeTOML
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"zmotd-config.toml"
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config.services.zmotd.config;
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in pkgs.writeShellScript "zmotd-wrapper" ''
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${pkgs.zmotd}/bin/zmotd ${configFile} > ${motdFile}
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'';
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};
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};
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systemd.timers.zmotd = {
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description = "Regenerate MOTD often";
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enable = config.services.zmotd.enable;
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnActiveSec = "0s";
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OnUnitActiveSec = config.services.zmotd.interval;
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Unit = "zmotd.service";
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Persistent = true;
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};
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};
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};
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}
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