homeassistant -> prometheus

flake.lock

@@ -908,11 +908,11 @@
     "secrets": {
       "flake": false,
       "locked": {
-        "lastModified": 1675861033,
-        "narHash": "sha256-N7jtUdy718AzP097ItsqzzxutiNmiBSfEd9AuL1yCoQ=",
+        "lastModified": 1675998131,
+        "narHash": "sha256-j17u/hZeFk/qJsqi8R3//UZbMZUFmuhM3EgqL/DdByo=",
         "ref": "main",
-        "rev": "847d654dd6393ad31627484785ffb28a73fe034f",
-        "revCount": 44,
+        "rev": "035d16fc7f29ee294da3091f74a4a909d46f197d",
+        "revCount": 45,
         "type": "git",
         "url": "ssh://gitea@git.ingolf-wagner.de/palo/nixos-secrets.git"
       },

nixos/machines/pepe/prometheus.nix

@@ -1,5 +1,7 @@
 { config, pkgs, lib, ... }: {
 
+  sops.secrets.hass_long_term_token = { };
+
   services.nginx = {
     enable = true;
     statusPage = true;
@@ -15,6 +17,7 @@
   };
 
   services.prometheus = {
+    checkConfig = "syntax-only";
     enable = true;
     # keep data for 30 days
     extraFlags = [ "--storage.tsdb.retention.time=30d" ];
@@ -49,6 +52,20 @@
           targets = [ "localhost:${toString config.services.prometheus.exporters.node.port}" ];
         }];
       }
+      {
+        # see https://www.home-assistant.io/integrations/prometheus/
+        job_name = "home-assistant";
+        scrape_interval = "60s";
+        metrics_path = "/api/prometheus";
+        bearer_token_file = toString config.sops.secrets.hass_long_term_token.path;
+        static_configs = [{
+          targets = [ "localhost:8123" ];
+          labels = {
+            service = "hass";
+            server = "pepe";
+          };
+        }];
+      }
     ];
   };
 }