1 files changed, 70 insertions, 0 deletions
diff --git a/nixpkgs/nixos/modules/services/monitoring/riemann-tools.nix b/nixpkgs/nixos/modules/services/monitoring/riemann-tools.nix
new file mode 100644
index 00000000000..86a11694e7b
--- /dev/null
+++ b/nixpkgs/nixos/modules/services/monitoring/riemann-tools.nix
@@ -0,0 +1,70 @@
+{ config, pkgs, lib, ... }:
+
+with pkgs;
+with lib;
+
+let
+
+  cfg = config.services.riemann-tools;
+
+  riemannHost = "${cfg.riemannHost}";
+
+  healthLauncher = writeScriptBin "riemann-health" ''
+    #!/bin/sh
+    exec ${pkgs.riemann-tools}/bin/riemann-health ${builtins.concatStringsSep " " cfg.extraArgs} --host ${riemannHost}
+  '';
+
+
+in {
+
+  options = {
+
+    services.riemann-tools = {
+      enableHealth = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Enable the riemann-health daemon.
+        '';
+      };
+      riemannHost = mkOption {
+        type = types.str;
+        default = "127.0.0.1";
+        description = ''
+          Address of the host riemann node. Defaults to localhost.
+        '';
+      };
+      extraArgs = mkOption {
+        type = types.listOf types.str;
+        default = [];
+        description = ''
+          A list of commandline-switches forwarded to a riemann-tool.
+          See for example `riemann-health --help` for available options.
+        '';
+        example = ["-p 5555" "--timeout=30" "--attribute=myattribute=42"];
+      };
+    };
+  };
+
+  config = mkIf cfg.enableHealth {
+
+    users.groups.riemanntools.gid = config.ids.gids.riemanntools;
+
+    users.users.riemanntools = {
+      description = "riemann-tools daemon user";
+      uid = config.ids.uids.riemanntools;
+      group = "riemanntools";
+    };
+
+    systemd.services.riemann-health = {
+      wantedBy = [ "multi-user.target" ];
+      path = [ procps ];
+      serviceConfig = {
+        User = "riemanntools";
+        ExecStart = "${healthLauncher}/bin/riemann-health";
+      };
+    };
+
+  };
+
+}