feat(packages/modules): Add cachix-deploy-metrics

modules/cachix-deploy-metrics/default.nix

@@ -0,0 +1,91 @@
+{ withSystem, ... }:
+{
+  flake.modules.nixos.cachix-deploy-metrics =
+    {
+      pkgs,
+      config,
+      lib,
+      ...
+    }:
+    let
+      inherit (lib)
+        types
+        mkEnableOption
+        mkOption
+        mkIf
+        concatMapStringsSep
+        ;
+      cfg = config.services.cachix-deploy-metrics;
+      defaultPackage = withSystem pkgs.stdenv.hostPlatform.system (
+        { config, ... }: config.packages.cachix-deploy-metrics
+      );
+    in
+    {
+      options.services.cachix-deploy-metrics = with lib; {
+        enable = mkEnableOption (lib.mdDoc "Cachix Deploy Metrics");
+
+        package = mkOption {
+          type = types.package;
+          default = defaultPackage;
+          description = "Package providing the deploy-metrics binary.";
+        };
+
+        scrape-interval = mkOption {
+          type = types.int;
+          default = 1;
+          description = "Scrape interval in seconds.";
+        };
+
+        auth-token-path = mkOption {
+          type = types.path;
+          description = "Cachix auth token path.";
+        };
+
+        workspace = mkOption {
+          type = types.str;
+          description = "Cachix workspace.";
+        };
+
+        agent-names = mkOption {
+          type = types.listOf types.str;
+          default = [ ];
+          description = "List of Cachix deploy agents.";
+          example = [
+            "machine-01"
+            "machine-02"
+          ];
+        };
+
+        port = mkOption {
+          type = types.port;
+          default = 9160;
+          description = "Port number of Cachix Deployments Exporter service.";
+        };
+      };
+
+      config = mkIf cfg.enable {
+        systemd.services.cachix-deploy-metrics = {
+          description = "Prometheus exporter for Cachix Deploy";
+          wantedBy = [ "multi-user.target" ];
+          path = [ cfg.package ];
+          serviceConfig = {
+            ExecStart = ''
+              ${lib.getExe cfg.package} \
+                --port ${toString cfg.port} \
+                --scrape-interval ${toString cfg.scrape-interval} \
+                --auth-token-path ${cfg.auth-token-path} \
+                --workspace ${cfg.workspace} \
+                ${
+                  if cfg.agent-names == [ ] then
+                    ""
+                  else
+                    concatMapStringsSep " \\\n" (agent: "--agent-names=${agent}") cfg.agent-names
+                }
+            '';
+            Restart = "on-failure";
+            RestartSec = 10;
+          };
+        };
+      };
+    };
+}

modules/default.nix

@@ -1,5 +1,6 @@
 {
   imports = [
+    ./cachix-deploy-metrics
     ./lido
     ./pyroscope
     ./folder-size-metrics

packages/cachix-deploy-metrics/default.nix

@@ -0,0 +1,45 @@
+{
+  lib,
+  buildDubPackage,
+  pkgs,
+  ...
+}:
+buildDubPackage rec {
+  pname = "cachix-deploy-metrics";
+  version = "unstable";
+  src = lib.fileset.toSource {
+    root = ./.;
+    fileset = lib.fileset.fileFilter (
+      file:
+      builtins.any file.hasExt [
+        "d"
+        "sdl"
+        "json"
+      ]
+    ) ./.;
+  };
+  dubLock = ./dub.lock.json; # Auto generated with `dub-to-nix`.
+  dubBuildFlags = [ ];
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $out/bin
+    install -m755 ./build/${pname} $out/bin/${pname}
+    runHook postInstall
+  '';
+
+  nativeBuildInputs = [
+    pkgs.pkg-config
+    pkgs.makeWrapper
+  ];
+
+  buildInputs = [
+    pkgs.curl
+  ];
+
+  postFixup = ''
+    wrapProgram $out/bin/${pname}
+  '';
+
+  meta.mainProgram = pname;
+}

packages/cachix-deploy-metrics/dub.lock.json

@@ -0,0 +1,76 @@
+{
+  "dependencies": {
+    "argparse": {
+      "version": "1.4.1",
+      "sha256": "1hwpc9y9jqcw849g77pxbz6rvvpslgaxwid1rxpaz4nyhi93fq4g"
+    },
+    "diet-ng": {
+      "version": "1.8.4",
+      "sha256": "03c3pmc9w0s3yf1xipmiw5jiy3aifk6bby3z015vvn80s59mk18c"
+    },
+    "during": {
+      "version": "0.3.0",
+      "sha256": "1xkfwhvnr67k0vy664sadj0hjifbs0257cbfjw86jp7rvjkn0myi"
+    },
+    "eventcore": {
+      "version": "0.9.37",
+      "sha256": "17fs8lsm1l3nf26k9a21jr7chmzs5ryl926nppzh6a1i2k4jmia4"
+    },
+    "mir-linux-kernel": {
+      "version": "1.2.1",
+      "sha256": "12i0sa7dnh70vd22cyhymwn0837bxdjcrs3hilnn5cpfxamaqavq"
+    },
+    "openssl": {
+      "version": "3.4.0",
+      "sha256": "0y71p03v05v797bkk0b3sbdkncqb5ch3a48nxaly6dxfdz4w247m"
+    },
+    "openssl-static": {
+      "version": "1.0.5+3.0.8",
+      "sha256": "0wpqz29yrbbh39g3cwlgd6h6hh1msws7w5baw1kywdkgj761gx2k"
+    },
+    "prometheus2": {
+      "version": "1.1.0",
+      "sha256": "0i3r4i5dyfxxlayk1gzbf0w28mpysnwg33khxndp7wwh3vadwyis"
+    },
+    "silly": {
+      "version": "1.1.1",
+      "sha256": "0fz7ib715sfk3w69i6xns5pwd4caahvfqjf32v13daxm1ms8xdzz"
+    },
+    "stdx-allocator": {
+      "version": "2.77.5",
+      "sha256": "1g8382wr49sjyar0jay8j7y2if7h1i87dhapkgxphnizp24d7kaj"
+    },
+    "taggedalgebraic": {
+      "version": "1.0.1",
+      "sha256": "1xwczhidhb4d6lw342fwx8da4vdwryv9gq8p41bh7184300aafl9"
+    },
+    "vibe-container": {
+      "version": "1.7.0",
+      "sha256": "04m3yvrhjq231m71yvk0wc4n2y4bwpd7nvivnbvc65sqjxipqpgf"
+    },
+    "vibe-core": {
+      "version": "2.13.1",
+      "sha256": "0fcl1n9lsw2gg5flbjv9wimb18jxby40iip2zdzh1zksis2rg9b5"
+    },
+    "vibe-d": {
+      "version": "0.10.2",
+      "sha256": "1vb2alzvvlmn4gjycsgcjjj57gv2mh5faci57qvkxhs73x818rc8"
+    },
+    "vibe-http": {
+      "version": "1.3.1",
+      "sha256": "0w01qw3ajnwij3pflv77brik0gf5qhla0wkcq8gcj79hj7gkf49c"
+    },
+    "vibe-inet": {
+      "version": "1.2.0",
+      "sha256": "11qdm5qyv95flfrdm32xscjsx0khhpin7jvrk9v43hsvyy8lzrvf"
+    },
+    "vibe-serialization": {
+      "version": "1.1.2",
+      "sha256": "1mlqd7z5b3qdr7crj7ci76whqrnz2bahndp3fxn5k8zsd1yl294x"
+    },
+    "vibe-stream": {
+      "version": "1.3.0",
+      "sha256": "0q8bxi07z46dp7fk1xdfxmcq9n10jfxhq3zbd5p44w0681qgzf7g"
+    }
+  }
+}

packages/cachix-deploy-metrics/dub.sdl

@@ -0,0 +1,10 @@
+name "cachix-deploy-metrics"
+
+targetType "executable"
+targetPath "build"
+
+sourceFiles "main.d"
+
+dependency "prometheus2" version="~>1.1.0"
+dependency "vibe-d" version="~>0.10.2"
+dependency "argparse" version=">=1.3.0 <2.0.0"

packages/cachix-deploy-metrics/dub.selections.json

@@ -0,0 +1,23 @@
+{
+	"fileVersion": 1,
+	"versions": {
+		"argparse": "1.4.1",
+		"diet-ng": "1.8.4",
+		"during": "0.3.0",
+		"eventcore": "0.9.37",
+		"mir-linux-kernel": "1.2.1",
+		"openssl": "3.4.0",
+		"openssl-static": "1.0.5+3.0.8",
+		"prometheus2": "1.1.0",
+		"silly": "1.1.1",
+		"stdx-allocator": "2.77.5",
+		"taggedalgebraic": "1.0.1",
+		"vibe-container": "1.7.0",
+		"vibe-core": "2.13.1",
+		"vibe-d": "0.10.2",
+		"vibe-http": "1.3.1",
+		"vibe-inet": "1.2.0",
+		"vibe-serialization": "1.1.2",
+		"vibe-stream": "1.3.0"
+	}
+}