add Grafana Prometheus metric forwarding

nbit-mqtt/docker-compose.yml

@@ -18,3 +18,25 @@ services:
     tty: true
     volumes:
       - /home/joerg/nbit-mqtt/data-shellies:/data
+
+  mqtt2prometheus:
+    image: ghcr.io/hikhvar/mqtt2prometheus:latest 
+    command:
+      - /mqtt2prometheus
+      - -log-level
+      - debug
+      - -config
+      - /config.yaml
+    ports:
+      - 9641:9641
+    volumes:
+      - type: bind
+        source: ./mqtt2prometheus-config.yaml
+        target: /config.yaml
+
+  prometheus:
+    image: prom/prometheus:latest
+    volumes:
+      - type: bind
+        source: ./prometheus.yml
+        target: /etc/prometheus/prometheus.yml

nbit-mqtt/mqtt2prometheus-config.yaml

@@ -0,0 +1,23 @@
+mqtt:
+  server: tcp://mqtt.nbit.ch:1883
+  user: mqtt
+  password: mqtt7355@
+  topic_path: shellies/events/rpc
+  device_id_regex: "(.*/)?(?P<deviceid>.*)"
+  qos: 0
+cache:
+  timeout: 24h
+json_parsing:
+  separator: .
+metrics:
+    # The name of the metric in prometheus
+  - prom_name: aenergy_total
+    # The name of the metric in a MQTT JSON message
+    mqtt_name: params.switch:0.aenergy.total
+    # The prometheus help text for this metric
+    help: total energy
+    # The prometheus type for this metric. Valid values are: "gauge" and "counter"
+    type: gauge
+    # A map of string to string for constant labels. This labels will be attached to every prometheus metric
+    const_labels:
+      sensor_type: shelly

nbit-mqtt/prometheus.yml

@@ -0,0 +1,19 @@
+global:
+  scrape_interval: 5m
+  scrape_timeout: 10s
+  evaluation_interval: 15s
+scrape_configs:
+  - job_name: mqtt2prometheus
+    honor_timestamps: true
+    scrape_interval: 5m
+    scrape_timeout: 10s
+    metrics_path: /metrics
+    scheme: http
+    static_configs:
+      - targets:
+          - mqtt2prometheus:9641
+remote_write:
+  - basic_auth:
+      password: eyJrIjoiOWJlNzM1ODYzY2JjZmE5MTA5YTcyNzJlNTk3MjllY2U3YjViMDk1NSIsIm4iOiJzdGFjay00NDQyODktZWFzeXN0YXJ0LXByb20tcHVibGlzaGVyIiwiaWQiOjcxNzI1MX0=
+      username: 589349
+    url: https://prometheus-prod-01-eu-west-0.grafana.net/api/prom/push