chore: use upstream's victoriametrics module

hosts/idols-aquamarine/monitoring/default.nix

@@ -1,6 +1,5 @@
 {mylib, ...}: {
   imports = [
-    ./module
     ./victoriametrics.nix
     ./alertmanager.nix
   ];

hosts/idols-aquamarine/monitoring/module/default.nix

@@ -1,189 +0,0 @@
-{
-  config,
-  pkgs,
-  lib,
-  ...
-}:
-with lib; let
-  cfg = config.services.my-victoriametrics;
-  settingsFormat = pkgs.formats.yaml {};
-
-  startCLIList =
-    [
-      "${cfg.package}/bin/victoria-metrics"
-      "-storageDataPath=/var/lib/${cfg.stateDir}"
-      "-httpListenAddr=${cfg.listenAddress}"
-    ]
-    ++ lib.optionals (cfg.retentionPeriod != null) ["-retentionPeriod=${cfg.retentionPeriod}"]
-    ++ cfg.extraOptions;
-  prometheusConfigYml = checkedConfig (
-    settingsFormat.generate "prometheusConfig.yaml" cfg.prometheusConfig
-  );
-
-  checkedConfig = file:
-    pkgs.runCommand "checked-config" {nativeBuildInputs = [cfg.package];} ''
-      ln -s ${file} $out
-      ${lib.escapeShellArgs startCLIList} -promscrape.config=${file} -dryRun
-    '';
-in {
-  options.services.my-victoriametrics = {
-    enable = mkEnableOption "VictoriaMetrics is a fast, cost-effective and scalable monitoring solution and time series database.";
-    package = mkPackageOption pkgs "victoriametrics" {};
-
-    listenAddress = mkOption {
-      default = ":8428";
-      type = types.str;
-      description = ''
-        TCP address to listen for incoming http requests.
-      '';
-    };
-
-    stateDir = mkOption {
-      type = types.str;
-      default = "victoriametrics";
-      description = ''
-        Directory below `/var/lib` to store VictoriaMetrics metrics data.
-        This directory will be created automatically using systemd's StateDirectory mechanism.
-      '';
-    };
-
-    retentionPeriod = mkOption {
-      type = types.nullOr types.str;
-      default = null;
-      example = "15d";
-      description = ''
-        How long to retain samples in storage.
-        The minimum retentionPeriod is 24h or 1d. See also -retentionFilter
-        The following optional suffixes are supported: s (second), h (hour), d (day), w (week), y (year).
-        If suffix isn't set, then the duration is counted in months (default 1)
-      '';
-    };
-
-    prometheusConfig = lib.mkOption {
-      type = lib.types.submodule {freeformType = settingsFormat.type;};
-      default = {};
-      example = literalExpression ''
-        {
-          scrape_configs = [
-            {
-              job_name = "postgres-exporter";
-              metrics_path = "/metrics";
-              static_configs = [
-                {
-                  targets = ["1.2.3.4:9187"];
-                  labels.type = "database";
-                }
-              ];
-            }
-            {
-              job_name = "node-exporter";
-              metrics_path = "/metrics";
-              static_configs = [
-                {
-                  targets = ["1.2.3.4:9100"];
-                  labels.type = "node";
-                }
-                {
-                  targets = ["5.6.7.8:9100"];
-                  labels.type = "node";
-                }
-              ];
-            }
-          ];
-        }
-      '';
-      description = ''
-        Config for prometheus style metrics.
-        See the docs: <https://docs.victoriametrics.com/vmagent/#how-to-collect-metrics-in-prometheus-format>
-        for more information.
-      '';
-    };
-
-    extraOptions = mkOption {
-      type = types.listOf types.str;
-      default = [];
-      example = literalExpression ''
-        [
-          "-httpAuth.username=username"
-          "-httpAuth.password=file:///abs/path/to/file"
-          "-loggerLevel=WARN"
-        ]
-      '';
-      description = ''
-        Extra options to pass to VictoriaMetrics. See the docs:
-        <https://docs.victoriametrics.com/single-server-victoriametrics/#list-of-command-line-flags>
-        or {command}`victoriametrics -help` for more information.
-      '';
-    };
-  };
-
-  config = lib.mkIf cfg.enable {
-    systemd.services.victoriametrics = {
-      description = "VictoriaMetrics time series database";
-      wantedBy = ["multi-user.target"];
-      after = ["network.target"];
-      startLimitBurst = 5;
-
-      serviceConfig = {
-        ExecStart = lib.escapeShellArgs (
-          startCLIList
-          ++ lib.optionals (cfg.prometheusConfig != null) ["-promscrape.config=${prometheusConfigYml}"]
-        );
-
-        DynamicUser = true;
-        RestartSec = 1;
-        Restart = "on-failure";
-        RuntimeDirectory = "victoriametrics";
-        RuntimeDirectoryMode = "0700";
-        StateDirectory = cfg.stateDir;
-        StateDirectoryMode = "0700";
-
-        # Increase the limit to avoid errors like 'too many open files'  when merging small parts
-        LimitNOFILE = 1048576;
-
-        # Hardening
-        DeviceAllow = ["/dev/null rw"];
-        DevicePolicy = "strict";
-        LockPersonality = true;
-        MemoryDenyWriteExecute = true;
-        NoNewPrivileges = true;
-        PrivateDevices = true;
-        PrivateTmp = true;
-        PrivateUsers = true;
-        ProtectClock = true;
-        ProtectControlGroups = true;
-        ProtectHome = true;
-        ProtectHostname = true;
-        ProtectKernelLogs = true;
-        ProtectKernelModules = true;
-        ProtectKernelTunables = true;
-        ProtectProc = "invisible";
-        ProtectSystem = "full";
-        RemoveIPC = true;
-        RestrictAddressFamilies = [
-          "AF_INET"
-          "AF_INET6"
-          "AF_UNIX"
-        ];
-        RestrictNamespaces = true;
-        RestrictRealtime = true;
-        RestrictSUIDSGID = true;
-        SystemCallArchitectures = "native";
-        SystemCallFilter = [
-          "@system-service"
-          "~@privileged"
-        ];
-      };
-
-      postStart = let
-        bindAddr =
-          (lib.optionalString (lib.hasPrefix ":" cfg.listenAddress) "127.0.0.1") + cfg.listenAddress;
-      in
-        lib.mkBefore ''
-          until ${lib.getBin pkgs.curl}/bin/curl -s -o /dev/null http://${bindAddr}/ping; do
-            sleep 1;
-          done
-        '';
-    };
-  };
-}

hosts/idols-aquamarine/monitoring/victoriametrics.nix

@@ -21,7 +21,7 @@
   };
 
   # https://victoriametrics.io/docs/victoriametrics/latest/configuration/configuration/
-  services.my-victoriametrics = {
+  services.victoriametrics = {
     enable = true;
     listenAddress = "127.0.0.1:9090";
     retentionPeriod = "30d";