Expose node exporter for scraping

bundles/uberspace-clerie-monitoring/files/prometheus-node-exporter-web-config.yml

@@ -0,0 +1,2 @@
+basic_auth_users:
+  monitor: "$2y$05$b4TibqWAj3MDv3g.SCaPZe9r6jV8Vowvn/CBZOdScwgkE7JcIuUfK"

bundles/uberspace-clerie-monitoring/files/prometheus-node-exporter.ini

@@ -1,6 +1,7 @@
 [program:prometheus-node-exporter]
 command=prometheus-node-exporter
     --web.listen-address 0.0.0.0:9100
+    --web.config.file=/home/{{ node.username }}/.config/prometheus-node-exporter/web-config.yml
     --collector.disable-defaults
     --collector.textfile
     --collector.textfile.directory=/home/{{ node.username }}/.local/state/prometheus-node-exporter/textfiles

bundles/uberspace-clerie-monitoring/items.py

@@ -22,6 +22,12 @@ files = uberspaceify.files({
             "svc_uberspace_supervisord:prometheus-node-exporter:update",
         ],
     },
+    f"/home/{node.username}/.config/prometheus-node-exporter/web-config.yml": {
+        "source": "prometheus-node-exporter-web-config.yml",
+        "triggers": [
+            "svc_uberspace_supervisord:prometheus-node-exporter:restart",
+        ],
+    },
 })
 
 actions["prometheus-node-exporter-exists"] = {
@@ -45,3 +51,9 @@ svc_uberspace_supervisord["prometheus-node-exporter"] = {
         f"file:/home/{node.username}/etc/services.d/prometheus-node-exporter.ini",
     ],
 }
+
+uberspace_web_backend["/.node-exporter"] = {
+    "backend": "http",
+    "port": 9100,
+    "remove_prefix": True,
+}