blackbox addition

custom/prometheus/prometheus.yml

@@ -28,4 +28,21 @@ scrape_configs:
 
   - job_name: node
     static_configs:
-    - targets: ['docker.host:9100']
+    - targets: ['docker.host:9100']
+
+  - job_name: 'blackbox'
+    metrics_path: /probe
+    params:
+      module: [http_2xx]  # Look for a HTTP 200 response.
+    static_configs:
+      - targets:
+        - https://faulty.nl    
+        - https://home.famslof.nl
+        - https://hetzner.de
+    relabel_configs:
+      - source_labels: [__address__]
+        target_label: __param_target
+      - source_labels: [__param_target]
+        target_label: instance
+      - target_label: __address__
+        replacement: prom-blackbox:9115  # The blackbox exporter's real hostname:port.