Issue #226: Legwork towards showing metrics for Pi itself in Grafana.

Author: geerlingguy

README.md

@@ -78,6 +78,15 @@ prometheus_extra_scrape_configs: |
       - targets: ['192.168.1.1:9100']
 ```
 
+You can also add more targets to monitor via the node exporter dashboard, say if you have a number of servers or other Pis you want to monitor on this instance. Just add them to the list, after the `nodeexp:9100` entry for the main Pi:
+
+```yaml
+prometheus_node_exporter_targets:
+  - 'nodeexp:9100'
+  # Add more targets here
+  - 'another-server.local:9100'
+```
+
 ## Updating
 
 ### pi-hole

example.config.yml

@@ -26,6 +26,8 @@ monitoring_ping_hosts:  # [URL];[HUMAN_READABLE_NAME]
   - https://www.apple.com/;apple.com
 
 # Prometheus configuration.
+prometheus_node_exporter_targets:
+  - 'nodeexp:9100'
 prometheus_extra_scrape_configs: ''
 
 # Shelly Plug configuration. (Also requires `monitoring_enable`)

templates/prometheus.yml.j2

@@ -69,9 +69,10 @@ scrape_configs:
       - target_label: __address__
         replacement: ping:9115  # The blackbox exporter's real hostname:port.
 
-  - job_name: 'nodeexp'
+  - job_name: 'node'
+    scrape_interval: 5s
     static_configs:
-      - targets: ['nodeexp:9100']
+      - targets: {{ prometheus_node_exporter_targets | to_yaml }}
 
   - job_name: 'pihole-exporter'
     static_configs: