buildkite-agent-metrics: init at 5.2.1

pkgs/servers/monitoring/buildkite-agent-metrics/default.nix

···
+{ lib
+, buildGoModule
+, fetchFromGitHub
+, fetchpatch
+}:
+buildGoModule rec {
+  pname = "buildkite-agent-metrics";
+  version = "5.2.1";
+
+  outputs = [ "out" "lambda" ];
+
+  src = fetchFromGitHub {
+    owner = "buildkite";
+    repo = "buildkite-agent-metrics";
+    rev = "v${version}";
+    sha256 = "XZYVCSJ/DIwoLrz37aQ3yW3RUhOhorY8L1AsAWxywcg=";
+  };
+
+  vendorSha256 = "UIkU3i45IEXWHdiakTj7f4W9kR49k4A93msfkqeXmQQ=";
+
+  patches = [
+    # Necessary to support passing the agent token in an env var, rather than on
+    # the command line. Should be removed upon the next release.
+    (fetchpatch {
+      name = "BUILDKITE_AGENT_TOKEN-env-var.patch";
+      url = "https://github.com/buildkite/buildkite-agent-metrics/commit/6c40b478b95f0e05fc12b87158222a9ff68169e0.patch";
+      sha256 = "Y4m9qGyPIROSqOY6G6xRQfFENEG4bFF3q5dZcHI4XiY=";
+    })
+  ];
+
+  postInstall = ''
+    mkdir -p $lambda/bin
+    mv $out/bin/lambda $lambda/bin
+  '';
+
+  meta = with lib; {
+    description = "A command-line tool (and Lambda) for collecting Buildkite agent metrics";
+    homepage = "https://github.com/buildkite/buildkite-agent-metrics";
+    license = licenses.mit;
+    maintainers = teams.determinatesystems.members;
+  };
+}

pkgs/top-level/all-packages.nix

···
   buildkite-agent2 = throw "pkgs.buildkite-agent2 has been discontinued. Please use pkgs.buildkite-agent (v3.x)";
   buildkite-agent3 = callPackage ../development/tools/continuous-integration/buildkite-agent { };
 
+  buildkite-agent-metrics = callPackage ../servers/monitoring/buildkite-agent-metrics { };
+
   buildkite-cli = callPackage ../development/tools/continuous-integration/buildkite-cli { };
 
   bump = callPackage ../development/tools/github/bump { };