monitoring: add radarr, sonarr and transmission

machines/thorite/monitoring.nix

@@ -13,6 +13,7 @@ let
     grafanaUrl
     ntfyUrl
     internalDomain
+    transmissionExporterUrl
     ;
   removeHttps = s: lib.removePrefix "https://" s;
 in
@@ -154,6 +155,24 @@ in
           address = "thorite.coho-tet.ts.net";
           port = 3100;
         }
+        {
+          name = "transmission";
+          scheme = "http";
+          address = transmissionExporterUrl;
+          port = 19091;
+        }
+        {
+          name = "sonarr";
+          scheme = "http";
+          address = "weilite.${internalDomain}";
+          port = 21560;
+        }
+        {
+          name = "radarr";
+          scheme = "http";
+          address = "weilite.${internalDomain}";
+          port = 21561;
+        }
       ])
       ++ (mkCaddyScrapes [
         { address = "thorite.coho-tet.ts.net"; }

machines/weilite/secrets.yaml

@@ -7,6 +7,10 @@ restic:
     localpass: ENC[AES256_GCM,data:GIQAmkpDmGu4+sSG5/b5yQ==,iv:dcu6F8NnVjeQzEG2vM3fOV5owI0PWc86ts20UP3vN18=,tag:vsG8x062FG1pH5YNcAajeg==,type:str]
 transmission:
     rpc-password: ENC[AES256_GCM,data:4dumy0hygGOuwU3ANky3xEKRDRBAJWE=,iv:HVV2J+F8HndHZNsMD2YmkWrJOzk5JIapGd0SuQP8VqU=,tag:xqp5pxh5cYYogA4alrmIfg==,type:str]
+sonarr:
+    api-key: ENC[AES256_GCM,data:/CkApTCLQy8TLHGKSM1saacNi9uQDswAjshRSLJk1hg=,iv:PNX4BZLx7krs12lxgORMSarnt0c/ga8yPtoLSzbQ+sY=,tag:V1pp9OCtX5/5fbwLBMGlOQ==,type:str]
+radarr:
+    api-key: ENC[AES256_GCM,data:AeJArngvgmqnxk2g13QjMa6XS893B+3ZdX2K8OqXRQg=,iv:NrQf3yyqRpHMeWQ3bpPH4fUDdo/x2uB6pQCq0ZrFP5c=,tag:Yj2PSy6zRfe8anW0RGuZAQ==,type:str]
 sops:
     kms: []
     gcp_kms: []
@@ -31,8 +35,8 @@ sops:
             V0thRjU4WGpQRGFpcnoxSjZTZHhTTkUKzNMHh9p7GUY3hL5XZ9S4x20CwaItsXFV
             RKujsFVVBd8Kuq/jyOCBTRCscuHI4LW/wYeZYHFEZFSTK2liAqspgw==
             -----END AGE ENCRYPTED FILE-----
-    lastmodified: "2025-02-01T15:54:35Z"
+    lastmodified: "2025-02-11T08:45:49Z"
-    mac: ENC[AES256_GCM,data:hDX2lQ5GbBGTqioEqNc/k4NvBW7/3ISOVUk8/6CkuW6ZQHUeMnfziWV7faw+DiMvYmwFUJ4mhY77Je5+gid0Ae5JyNxznBW2uzpXvLcTBsYz8iSZL6Jw5FciPIgkGDN5U5wMkusS6Ok2W/idIgmwlmxf3ACNaf7e0QpypwYwxZw=,iv:mkIQ2rvTpQXRuRarlcl/aIKDY3JmJKVsr1oS4+3vmnk=,tag:of2CSCqZAJaaZ5DvC6+Amg==,type:str]
+    mac: ENC[AES256_GCM,data:iObzkfSxKET1kE8yQbSxffG1qDO95SWfIRSdwbYcwP4mHOrl5sOtlGEjexVaLl7uKa0SMCK6BghbMr4EdLatiOmngsAzr8bxe/GsPZiCze04nr0VbKBgHxKr74gT8d14dwV+Y+np/5fgRZea7zxzJ4YaVfeUOG9PBsa7L6RWbx0=,iv:LMM096xLa5cOiLVTiFO20jBUaK1Uw4aOqsz7eH9u9vc=,tag:C1fPHN9KFbydcy1lRAhGvQ==,type:str]
     pgp: []
     unencrypted_suffix: _unencrypted
     version: 3.9.2

machines/weilite/services/media-download.nix

@@ -1,5 +1,14 @@
 { config, pkgs, ... }:
+let
+  inherit (config.my-lib.settings)
+    internalDomain
+    ;
+in
 {
+  sops.secrets = {
+    "sonarr/api-key" = { };
+    "radarr/api-key" = { };
+  };
   services.jackett = {
     enable = true;
     openFirewall = false;
@@ -20,6 +29,22 @@
     enable = true;
   };
 
+  services.prometheus.exporters.exportarr-sonarr = {
+    enable = true;
+    url = "http://127.0.0.1:8989";
+    apiKeyFile = config.sops.secrets."sonarr/api-key".path;
+    listenAddress = "weilite.${internalDomain}";
+    port = 21560;
+  };
+
+  services.prometheus.exporters.exportarr-radarr = {
+    enable = true;
+    url = "http://127.0.0.1:7878";
+    apiKeyFile = config.sops.secrets."radarr/api-key".path;
+    listenAddress = "weilite.${internalDomain}";
+    port = 21561;
+  };
+
   users.groups.media.members = [
     config.services.sonarr.user
     config.services.radarr.user

machines/weilite/services/transmission.nix

@@ -1,6 +1,12 @@
-{ config, pkgs, ... }:
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
 let
   cfg = config.services.transmission;
+  inherit (config.my-lib.settings) transmissionExporterUrl;
 in
 {
   sops.secrets = {
@@ -13,6 +19,12 @@ in
     };
   };
 
+  sops.templates."transmission-cred.env" = {
+    content = ''
+      TRANSMISSION_PASSWORD=${config.sops.placeholder."transmission/rpc-password"}
+    '';
+  };
+
   services.transmission = {
     enable = true;
     package = pkgs.transmission_4;
@@ -64,6 +76,22 @@ in
   services.caddy.virtualHosts."https://weilite.coho-tet.ts.net:9091".extraConfig = ''
     reverse_proxy 127.0.0.1:${toString cfg.settings.rpc-port}
   '';
+
+  systemd.services.prometheus-transmission-exporter = {
+    enable = true;
+    wantedBy = [ "transmission.service" ];
+    environment = {
+      WEB_ADDR = transmissionExporterUrl;
+      TRANSMISSION_ADDR = "http://127.0.0.1:${toString cfg.settings.rpc-port}";
+      TRANSMISSION_USERNAME = "xin";
+    };
+    after = [ "tailscaled.service" ];
+    serviceConfig = {
+      ExecStart = "${lib.getExe pkgs.transmission-exporter}";
+      EnvironmentFile = config.sops.templates."transmission-cred.env".path;
+    };
+  };
+
   networking.firewall.allowedTCPPorts = [ 9091 ]; # allow on lan
   users.groups.media.members = [ cfg.user ];
 }

overlays/add-pkgs.nix

@@ -9,4 +9,6 @@
       "idbloader.img"
     ];
   };
+
+  transmission-exporter = prev.callPackage ./pkgs/transmission-exporter.nix { };
 })

overlays/my-lib/settings.nix

@@ -13,6 +13,8 @@
     synapseUrl = "https://xiny.li";
     synapseDelegateUrl = "https://synapse.xiny.li";
 
+    transmissionExporterUrl = "weilite.coho-tet.ts.net:19091";
+
     prometheusCollectors = [
       "thorite.coho-tet.ts.net"
     ];

overlays/pkgs/transmission-exporter.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  fetchFromGitHub,
+  buildGoModule,
+}:
+buildGoModule rec {
+  pname = "transmission-exporter";
+  version = "0-unstable-2024-10-09";
+  rev = "v${version}";
+
+  src = fetchFromGitHub {
+    rev = "a7872aa2975c7a95af680c51198f4a363e226c8f";
+    owner = "metalmatze";
+    repo = "transmission-exporter";
+    sha256 = "sha256-Ky7eCvC1AqHheqGGOGBNKbtVgg4Y8hDG67gCVlpUwZo=";
+  };
+
+  vendorHash = "sha256-YhmfrM5iAK0zWcUM7LmbgFnH+k2M/tE+f/QQIQmQlZs=";
+
+  ldflags = [
+    "-X github.com/prometheus/common/version.Version=${version}"
+    "-X github.com/prometheus/common/version.Revision=${rev}"
+  ];
+
+  meta = {
+    description = "Prometheus exporter for Transmission torrent client.";
+    homepage = "https://github.com/pborzenkov/transmission-exporter";
+    mainProgram = "transmission-exporter";
+    license = [ lib.licenses.mit ];
+    maintainers = [ lib.maintainers.xinyangli ];
+  };
+}