adding node exporter, loki, and promtail

addon-prometheus/rootfs/opt/prometheus-configgen/prometheus.template

@@ -0,0 +1,38 @@
+---
+# my global config
+global:
+  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+            # - alertmanager:9093
+
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+  - "/share/prometheus/rules/*.yaml"
+
+
+.scrape_configs_included: !include targets/*.yaml
+.scrape_configs_static:
+  - job_name: 'home-assistant'
+    scrape_interval: 60s
+    metrics_path: /core/api/prometheus
+
+    # Long-Lived Access Token
+    bearer_token_file: '/run/home-assistant.token'
+
+    scheme: http
+    static_configs:
+    - targets: ['supervisor:80']
+  - job_name: 'prometheus'
+
+    # metrics_path defaults to '/metrics'
+    # scheme defaults to 'http'.
+
+    static_configs:
+    - targets: ['localhost:9090']