scrutiny: init at 0.7.2 (+nix module, tests)

nixos/doc/manual/release-notes/rl-2405.section.md

@@ -79,6 +79,8 @@ The pre-existing [services.ankisyncd](#opt-services.ankisyncd.enable) has been m
 
 - [RustDesk](https://rustdesk.com), a full-featured open source remote control alternative for self-hosting and security with minimal configuration. Alternative to TeamViewer.
 
+- [Scrutiny](https://github.com/AnalogJ/scrutiny), a S.M.A.R.T monitoring tool for hard disks with a web frontend.
+
 - [systemd-lock-handler](https://git.sr.ht/~whynothugo/systemd-lock-handler/), a bridge between logind D-Bus events and systemd targets. Available as [services.systemd-lock-handler.enable](#opt-services.systemd-lock-handler.enable).
 
 ## Backward Incompatibilities {#sec-release-24.05-incompatibilities}

nixos/modules/module-list.nix

@@ -839,6 +839,7 @@
   ./services/monitoring/riemann.nix
   ./services/monitoring/rustdesk-server.nix
   ./services/monitoring/scollector.nix
+  ./services/monitoring/scrutiny.nix
   ./services/monitoring/smartd.nix
   ./services/monitoring/snmpd.nix
   ./services/monitoring/statsd.nix

nixos/modules/services/monitoring/scrutiny.nix

@@ -0,0 +1,221 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.services.scrutiny;
+  # Define the settings format used for this program
+  settingsFormat = pkgs.formats.yaml { };
+in
+{
+  options = {
+    services.scrutiny = {
+      enable = lib.mkEnableOption "Enables the scrutiny web application.";
+
+      package = lib.mkPackageOptionMD pkgs "scrutiny" { };
+
+      openFirewall = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Open the default ports in the firewall for Scrutiny.";
+      };
+
+      influxdb.enable = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = lib.mdDoc ''
+          Enables InfluxDB on the host system using the `services.influxdb2` NixOS module
+          with default options.
+
+          If you already have InfluxDB configured, or wish to connect to an external InfluxDB
+          instance, disable this option.
+        '';
+      };
+
+      settings = lib.mkOption {
+        description = lib.mdDoc ''
+          Scrutiny settings to be rendered into the configuration file.
+
+          See https://github.com/AnalogJ/scrutiny/blob/master/example.scrutiny.yaml.
+        '';
+        default = { };
+        type = lib.types.submodule {
+          freeformType = settingsFormat.type;
+
+          options.web.listen.port = lib.mkOption {
+            type = lib.types.port;
+            default = 8080;
+            description = lib.mdDoc "Port for web application to listen on.";
+          };
+
+          options.web.listen.host = lib.mkOption {
+            type = lib.types.str;
+            default = "0.0.0.0";
+            description = lib.mdDoc "Interface address for web application to bind to.";
+          };
+
+          options.web.listen.basepath = lib.mkOption {
+            type = lib.types.str;
+            default = "";
+            example = "/scrutiny";
+            description = lib.mdDoc ''
+              If Scrutiny will be behind a path prefixed reverse proxy, you can override this
+              value to serve Scrutiny on a subpath.
+            '';
+          };
+
+          options.log.level = lib.mkOption {
+            type = lib.types.enum [ "INFO" "DEBUG" ];
+            default = "INFO";
+            description = lib.mdDoc "Log level for Scrutiny.";
+          };
+
+          options.web.influxdb.scheme = lib.mkOption {
+            type = lib.types.str;
+            default = "http";
+            description = lib.mdDoc "URL scheme to use when connecting to InfluxDB.";
+          };
+
+          options.web.influxdb.host = lib.mkOption {
+            type = lib.types.str;
+            default = "0.0.0.0";
+            description = lib.mdDoc "IP or hostname of the InfluxDB instance.";
+          };
+
+          options.web.influxdb.port = lib.mkOption {
+            type = lib.types.port;
+            default = 8086;
+            description = lib.mdDoc "The port of the InfluxDB instance.";
+          };
+
+          options.web.influxdb.tls.insecure_skip_verify = lib.mkOption {
+            type = lib.types.bool;
+            default = false;
+            description = lib.mdDoc "Skip TLS verification when connecting to InfluxDB.";
+          };
+
+          options.web.influxdb.token = lib.mkOption {
+            type = lib.types.nullOr lib.types.str;
+            default = null;
+            description = lib.mdDoc "Authentication token for connecting to InfluxDB.";
+          };
+
+          options.web.influxdb.org = lib.mkOption {
+            type = lib.types.nullOr lib.types.str;
+            default = null;
+            description = lib.mdDoc "InfluxDB organisation under which to store data.";
+          };
+
+          options.web.influxdb.bucket = lib.mkOption {
+            type = lib.types.nullOr lib.types.str;
+            default = null;
+            description = lib.mdDoc "InfluxDB bucket in which to store data.";
+          };
+        };
+      };
+
+      collector = {
+        enable = lib.mkEnableOption "Enables the scrutiny metrics collector.";
+
+        package = lib.mkPackageOptionMD pkgs "scrutiny-collector" { };
+
+        schedule = lib.mkOption {
+          type = lib.types.str;
+          default = "*:0/15";
+          description = lib.mdDoc ''
+            How often to run the collector in systemd calendar format.
+          '';
+        };
+
+        settings = lib.mkOption {
+          description = lib.mdDoc ''
+            Collector settings to be rendered into the collector configuration file.
+
+            See https://github.com/AnalogJ/scrutiny/blob/master/example.collector.yaml.
+          '';
+          default = { };
+          type = lib.types.submodule {
+            freeformType = settingsFormat.type;
+
+            options.host.id = lib.mkOption {
+              type = lib.types.nullOr lib.types.str;
+              default = null;
+              description = lib.mdDoc "Host ID for identifying/labelling groups of disks";
+            };
+
+            options.api.endpoint = lib.mkOption {
+              type = lib.types.str;
+              default = "http://localhost:8080";
+              description = lib.mdDoc "Scrutiny app API endpoint for sending metrics to.";
+            };
+
+            options.log.level = lib.mkOption {
+              type = lib.types.enum [ "INFO" "DEBUG" ];
+              default = "INFO";
+              description = lib.mdDoc "Log level for Scrutiny collector.";
+            };
+          };
+        };
+      };
+    };
+  };
+
+  config = lib.mkIf (cfg.enable || cfg.collector.enable) {
+    services.influxdb2.enable = cfg.influxdb.enable;
+
+    networking.firewall = lib.mkIf cfg.openFirewall {
+      allowedTCPPorts = [ cfg.settings.web.listen.port ];
+    };
+
+    services.smartd = lib.mkIf cfg.collector.enable {
+      enable = true;
+      extraOptions = [
+        "-A /var/log/smartd/"
+        "--interval=600"
+      ];
+    };
+
+    systemd = {
+      services = {
+        scrutiny = lib.mkIf cfg.enable {
+          description = "Hard Drive S.M.A.R.T Monitoring, Historical Trends & Real World Failure Thresholds";
+          wantedBy = [ "multi-user.target" ];
+          after = [ "network.target" ];
+          environment = {
+            SCRUTINY_VERSION = "1";
+            SCRUTINY_WEB_DATABASE_LOCATION = "/var/lib/scrutiny/scrutiny.db";
+            SCRUTINY_WEB_SRC_FRONTEND_PATH = "${cfg.package}/share/scrutiny";
+          };
+          serviceConfig = {
+            DynamicUser = true;
+            ExecStart = "${lib.getExe cfg.package} start --config ${settingsFormat.generate "scrutiny.yaml" cfg.settings}";
+            Restart = "always";
+            StateDirectory = "scrutiny";
+            StateDirectoryMode = "0750";
+          };
+        };
+
+        scrutiny-collector = lib.mkIf cfg.collector.enable {
+          description = "Scrutiny Collector Service";
+          environment = {
+            COLLECTOR_VERSION = "1";
+            COLLECTOR_API_ENDPOINT = cfg.collector.settings.api.endpoint;
+          };
+          serviceConfig = {
+            Type = "oneshot";
+            ExecStart = "${lib.getExe cfg.collector.package} run --config ${settingsFormat.generate "scrutiny-collector.yaml" cfg.collector.settings}";
+          };
+        };
+      };
+
+      timers = lib.mkIf cfg.collector.enable {
+        scrutiny-collector = {
+          timerConfig = {
+            OnCalendar = cfg.collector.schedule;
+            Persistent = true;
+            Unit = "scrutiny-collector.service";
+          };
+        };
+      };
+    };
+  };
+
+  meta.maintainers = [ lib.maintainers.jnsgruk ];
+}

nixos/tests/all-tests.nix

@@ -771,6 +771,7 @@ in {
   sanoid = handleTest ./sanoid.nix {};
   scaphandre = handleTest ./scaphandre.nix {};
   schleuder = handleTest ./schleuder.nix {};
+  scrutiny = handleTest ./scrutiny.nix {};
   sddm = handleTest ./sddm.nix {};
   seafile = handleTest ./seafile.nix {};
   searx = handleTest ./searx.nix {};

nixos/tests/scrutiny.nix

@@ -0,0 +1,70 @@
+import ./make-test-python.nix ({ lib, ... }:
+
+{
+  name = "scrutiny";
+  meta.maintainers = with lib.maintainers; [ jnsgruk ];
+
+  nodes = {
+    machine = { self, pkgs, lib, ... }: {
+      services = {
+        scrutiny.enable = true;
+        scrutiny.collector.enable = true;
+      };
+
+      environment.systemPackages =
+        let
+          seleniumScript = pkgs.writers.writePython3Bin "selenium-script"
+            {
+              libraries = with pkgs.python3Packages; [ selenium ];
+            } ''
+            from selenium import webdriver
+            from selenium.webdriver.common.by import By
+            from selenium.webdriver.firefox.options import Options
+            from selenium.webdriver.support.ui import WebDriverWait
+            from selenium.webdriver.support import expected_conditions as EC
+
+            options = Options()
+            options.add_argument("--headless")
+            service = webdriver.FirefoxService(executable_path="${lib.getExe pkgs.geckodriver}")  # noqa: E501
+
+            driver = webdriver.Firefox(options=options, service=service)
+            driver.implicitly_wait(10)
+            driver.get("http://localhost:8080/web/dashboard")
+
+            wait = WebDriverWait(driver, 10).until(
+              EC.text_to_be_present_in_element(
+                (By.TAG_NAME, "body"), "Drive health at a glance")
+            )
+
+            body_text = driver.find_element(By.TAG_NAME, "body").text
+            assert "Temperature history for each device" in body_text
+
+            driver.close()
+          '';
+        in
+        with pkgs; [ curl firefox-unwrapped geckodriver seleniumScript ];
+    };
+  };
+  # This is the test code that will check if our service is running correctly:
+  testScript = ''
+    start_all()
+
+    # Wait for InfluxDB to be available
+    machine.wait_for_unit("influxdb2")
+    machine.wait_for_open_port(8086)
+
+    # Wait for Scrutiny to be available
+    machine.wait_for_unit("scrutiny")
+    machine.wait_for_open_port(8080)
+
+    # Ensure the API responds as we expect
+    output = machine.succeed("curl localhost:8080/api/health")
+    assert output == '{"success":true}'
+
+    # Start the collector service to send some metrics
+    collect = machine.succeed("systemctl start scrutiny-collector.service")
+
+    # Ensure the application is actually rendered by the Javascript
+    machine.succeed("PYTHONUNBUFFERED=1 selenium-script")
+  '';
+})

pkgs/by-name/sc/scrutiny-collector/package.nix

@@ -0,0 +1,53 @@
+{ buildGoModule
+, fetchFromGitHub
+, makeWrapper
+, smartmontools
+, nixosTests
+, lib
+}:
+let
+  version = "0.7.2";
+in
+buildGoModule rec {
+  inherit version;
+  pname = "scrutiny-collector";
+
+  src = fetchFromGitHub {
+    owner = "AnalogJ";
+    repo = "scrutiny";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-UYKi+WTsasUaE6irzMAHr66k7wXyec8FXc8AWjEk0qs=";
+  };
+
+  subPackages = "collector/cmd/collector-metrics";
+
+  vendorHash = "sha256-SiQw6pq0Fyy8Ia39S/Vgp9Mlfog2drtVn43g+GXiQuI=";
+
+  buildInputs = [ makeWrapper ];
+
+  CGO_ENABLED = 0;
+
+  ldflags = [ "-extldflags=-static" ];
+
+  tags = [ "static" ];
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/bin
+    cp $GOPATH/bin/collector-metrics $out/bin/scrutiny-collector-metrics
+    wrapProgram $out/bin/scrutiny-collector-metrics \
+      --prefix PATH : ${lib.makeBinPath [ smartmontools ]}
+    runHook postInstall
+  '';
+
+  passthru.tests.scrutiny-collector = nixosTests.scrutiny;
+
+  meta = {
+    description = "Hard disk metrics collector for Scrutiny.";
+    homepage = "https://github.com/AnalogJ/scrutiny";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ jnsgruk ];
+    mainProgram = "scrutiny-collector-metrics";
+    platforms = lib.platforms.linux;
+  };
+}