bcb2f287e1
GitOrigin-RevId: d603719ec6e294f034936c0d0dc06f689d91b6c3
217 lines
7.1 KiB
Nix
217 lines
7.1 KiB
Nix
{ config, lib, pkgs, ... }:
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let
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inherit (lib) maintainers;
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inherit (lib.meta) getExe;
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inherit (lib.modules) mkIf mkMerge;
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inherit (lib.options) literalExpression mkEnableOption mkOption mkPackageOption;
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inherit (lib.types) bool enum nullOr port str submodule;
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cfg = config.services.scrutiny;
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# Define the settings format used for this program
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settingsFormat = pkgs.formats.yaml { };
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in
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{
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options = {
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services.scrutiny = {
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enable = mkEnableOption "Scrutiny, a web application for drive monitoring";
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package = mkPackageOption pkgs "scrutiny" { };
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openFirewall = mkEnableOption "opening the default ports in the firewall for Scrutiny";
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influxdb.enable = mkOption {
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type = bool;
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default = true;
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description = ''
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Enables InfluxDB on the host system using the `services.influxdb2` NixOS module
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with default options.
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If you already have InfluxDB configured, or wish to connect to an external InfluxDB
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instance, disable this option.
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'';
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};
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settings = mkOption {
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description = ''
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Scrutiny settings to be rendered into the configuration file.
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See https://github.com/AnalogJ/scrutiny/blob/master/example.scrutiny.yaml.
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'';
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default = { };
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type = submodule {
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freeformType = settingsFormat.type;
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options.web.listen.port = mkOption {
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type = port;
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default = 8080;
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description = "Port for web application to listen on.";
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};
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options.web.listen.host = mkOption {
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type = str;
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default = "0.0.0.0";
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description = "Interface address for web application to bind to.";
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};
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options.web.listen.basepath = mkOption {
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type = str;
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default = "";
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example = "/scrutiny";
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description = ''
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If Scrutiny will be behind a path prefixed reverse proxy, you can override this
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value to serve Scrutiny on a subpath.
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'';
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};
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options.log.level = mkOption {
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type = enum [ "INFO" "DEBUG" ];
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default = "INFO";
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description = "Log level for Scrutiny.";
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};
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options.web.influxdb.scheme = mkOption {
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type = str;
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default = "http";
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description = "URL scheme to use when connecting to InfluxDB.";
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};
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options.web.influxdb.host = mkOption {
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type = str;
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default = "0.0.0.0";
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description = "IP or hostname of the InfluxDB instance.";
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};
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options.web.influxdb.port = mkOption {
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type = port;
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default = 8086;
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description = "The port of the InfluxDB instance.";
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};
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options.web.influxdb.tls.insecure_skip_verify = mkEnableOption "skipping TLS verification when connecting to InfluxDB";
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options.web.influxdb.token = mkOption {
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type = nullOr str;
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default = null;
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description = "Authentication token for connecting to InfluxDB.";
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};
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options.web.influxdb.org = mkOption {
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type = nullOr str;
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default = null;
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description = "InfluxDB organisation under which to store data.";
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};
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options.web.influxdb.bucket = mkOption {
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type = nullOr str;
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default = null;
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description = "InfluxDB bucket in which to store data.";
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};
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};
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};
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collector = {
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enable = mkEnableOption "the Scrutiny metrics collector";
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package = mkPackageOption pkgs "scrutiny-collector" { };
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schedule = mkOption {
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type = str;
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default = "*:0/15";
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description = ''
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How often to run the collector in systemd calendar format.
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'';
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};
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settings = mkOption {
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description = ''
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Collector settings to be rendered into the collector configuration file.
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See https://github.com/AnalogJ/scrutiny/blob/master/example.collector.yaml.
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'';
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default = { };
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type = submodule {
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freeformType = settingsFormat.type;
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options.host.id = mkOption {
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type = nullOr str;
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default = null;
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description = "Host ID for identifying/labelling groups of disks";
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};
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options.api.endpoint = mkOption {
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type = str;
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default = "http://${cfg.settings.web.listen.host}:${toString cfg.settings.web.listen.port}";
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defaultText = literalExpression ''"http://''${config.services.scrutiny.settings.web.listen.host}:''${config.services.scrutiny.settings.web.listen.port}"'';
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description = "Scrutiny app API endpoint for sending metrics to.";
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};
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options.log.level = mkOption {
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type = enum [ "INFO" "DEBUG" ];
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default = "INFO";
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description = "Log level for Scrutiny collector.";
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};
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};
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};
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};
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};
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};
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config = mkMerge [
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(mkIf cfg.enable {
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services.influxdb2.enable = cfg.influxdb.enable;
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networking.firewall = mkIf cfg.openFirewall {
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allowedTCPPorts = [ cfg.settings.web.listen.port ];
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};
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systemd.services.scrutiny = {
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description = "Hard Drive S.M.A.R.T Monitoring, Historical Trends & Real World Failure Thresholds";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ] ++ lib.optional cfg.influxdb.enable "influxdb2.service";
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wants = lib.optional cfg.influxdb.enable "influxdb2.service";
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environment = {
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SCRUTINY_VERSION = "1";
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SCRUTINY_WEB_DATABASE_LOCATION = "/var/lib/scrutiny/scrutiny.db";
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SCRUTINY_WEB_SRC_FRONTEND_PATH = "${cfg.package}/share/scrutiny";
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};
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serviceConfig = {
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DynamicUser = true;
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ExecStart = "${getExe cfg.package} start --config ${settingsFormat.generate "scrutiny.yaml" cfg.settings}";
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Restart = "always";
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StateDirectory = "scrutiny";
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StateDirectoryMode = "0750";
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};
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};
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})
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(mkIf cfg.collector.enable {
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services.smartd = {
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enable = true;
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extraOptions = [
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"-A /var/log/smartd/"
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"--interval=600"
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];
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};
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systemd = {
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services.scrutiny-collector = {
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description = "Scrutiny Collector Service";
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after = lib.optional cfg.enable "scrutiny.service";
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wants = lib.optional cfg.enable "scrutiny.service";
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environment = {
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COLLECTOR_VERSION = "1";
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COLLECTOR_API_ENDPOINT = cfg.collector.settings.api.endpoint;
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};
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serviceConfig = {
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Type = "oneshot";
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ExecStart = "${getExe cfg.collector.package} run --config ${settingsFormat.generate "scrutiny-collector.yaml" cfg.collector.settings}";
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};
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startAt = cfg.collector.schedule;
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};
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timers.scrutiny-collector.timerConfig.Persistent = true;
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};
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})
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];
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meta.maintainers = [ maintainers.jnsgruk ];
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}
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