feat: add host node-exporter container, prometheus target

prometheus.yml

@@ -5,6 +5,9 @@ scrape_configs:
     static_configs:
     - targets: ['host.containers.internal:8083']
 
+  - job_name: 'host-node-exporter'
+    static_configs:
+    - targets: ['host.containers.internal:9100']
   - job_name: 'code-forge-exporter'
     static_configs:
     - targets: ['host.containers.internal:3001']

service.yml

@@ -50,6 +50,16 @@ containers:
       - --config.file=/etc/prometheus/prometheus.yml
   - name: otel-collector
     image: panopticon-otel-collector:latest
+  - name: host-metrics-exporter
+    image: quay.io/prometheus/node-exporter:latest
+    network: host
+    pid-namespace: host
+    volumes:
+      - host: /
+        container: /host
+        readonly: true
+    extra-args:
+      - --path.rootfs=/host
   - name: tempo
     image: panopticon-tempo:latest
     volumes: