From efec23d7c63c32f72cda5b85660a61818ff595da Mon Sep 17 00:00:00 2001
From: uku <hi@uku.moe>
Date: Tue, 17 Dec 2024 00:15:28 +0100
Subject: [PATCH] feat(etna): add ups

---
 secrets/etna/upsdUserPass.age | 13 +++++++
 secrets/secrets.nix           |  1 +
 systems/etna/default.nix      |  1 +
 systems/etna/ups.nix          | 70 +++++++++++++++++++++++++++++++++++
 4 files changed, 85 insertions(+)
 create mode 100644 secrets/etna/upsdUserPass.age
 create mode 100644 systems/etna/ups.nix

diff --git a/secrets/etna/upsdUserPass.age b/secrets/etna/upsdUserPass.age
new file mode 100644
index 0000000..b33f108
--- /dev/null
+++ b/secrets/etna/upsdUserPass.age
@@ -0,0 +1,13 @@
+-----BEGIN AGE ENCRYPTED FILE-----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+-----END AGE ENCRYPTED FILE-----
diff --git a/secrets/secrets.nix b/secrets/secrets.nix
index ab7b04f..18a3419 100644
--- a/secrets/secrets.nix
+++ b/secrets/secrets.nix
@@ -31,4 +31,5 @@ in {
   "etna/forgejoRunnerSecret.age".publicKeys = main ++ [etna];
   "etna/vaultwardenEnv.age".publicKeys = main ++ [etna];
   "etna/vmauthEnv.age".publicKeys = main ++ [etna];
+  "etna/upsdUserPass.age".publicKeys = main ++ [etna];
 }
diff --git a/systems/etna/default.nix b/systems/etna/default.nix
index 7420247..27b7e76 100644
--- a/systems/etna/default.nix
+++ b/systems/etna/default.nix
@@ -30,6 +30,7 @@ in {
     ./satisfactory.nix
     ./shlink.nix
     ./uku.nix
+    ./ups.nix
     ./vaultwarden.nix
   ];
 
diff --git a/systems/etna/ups.nix b/systems/etna/ups.nix
new file mode 100644
index 0000000..01b9638
--- /dev/null
+++ b/systems/etna/ups.nix
@@ -0,0 +1,70 @@
+{
+  _utils,
+  config,
+  ...
+}: let
+  upsdPass = _utils.setupSingleSecret config "upsdUserPass" {};
+in {
+  imports = [upsdPass.generate];
+
+  power.ups = {
+    enable = true;
+    mode = "standalone";
+
+    upsd.listen = [
+      {
+        address = "127.0.0.1";
+        port = 3493;
+      }
+    ];
+
+    users.admin = {
+      passwordFile = upsdPass.path;
+      instcmds = ["ALL"];
+      actions = ["SET" "FSD"];
+    };
+
+    ups.eaton-3s-850 = {
+      driver = "usbhid-ups";
+      port = "auto";
+      description = "Eaton 3S 850 UPS";
+    };
+
+    upsmon.monitor.eaton-3s-850 = {
+      user = "admin";
+      passwordFile = upsdPass.path;
+    };
+  };
+
+  services = {
+    prometheus.exporters.nut = {
+      enable = true;
+      user = "root";
+      nutUser = "admin";
+      passwordPath = upsdPass.path;
+      nutVariables = [
+        "battery.charge"
+        "battery.runtime"
+        "battery.voltage"
+        "device.info"
+        "input.voltage"
+        "ups.load"
+        "ups.status"
+      ];
+    };
+
+    vmagent.prometheusConfig.scrape_configs = [
+      {
+        job_name = "nut";
+        metrics_path = "/ups_metrics";
+        params.ups = ["eaton-3s-850"];
+        static_configs = [
+          {
+            targets = ["localhost:${builtins.toString config.services.prometheus.exporters.nut.port}"];
+            labels.ups = "eaton-3s-850";
+          }
+        ];
+      }
+    ];
+  };
+}