k8s: add Starlink dish prometheus exporter + dashboard

joshuasing/starlink_exporter 0.9.0 (Docker Hub; ghcr.io lags behind
upstream releases). Targets the dish's gRPC management interface at
192.168.100.1:9200, reachable from cluster pods via 10.0.15.254 while
the Starlink router is in bypass mode.

Grafana dashboard "Starlink" covers throughput, PoP ping latency/drop,
obstruction state + 24h total, GPS lock, and dish position/info — synced
to /var/lib/grafana/dashboards/ by the existing grafana role.

ansible/roles/grafana/files/dashboards/starlink.json

@@ -0,0 +1,183 @@
+{
+  "uid": "starlink",
+  "title": "Starlink",
+  "tags": ["network", "starlink"],
+  "schemaVersion": 38,
+  "version": 1,
+  "timezone": "",
+  "refresh": "30s",
+  "time": {"from": "now-6h", "to": "now"},
+  "editable": true,
+  "graphTooltip": 1,
+  "templating": {
+    "list": [
+      {
+        "name": "datasource",
+        "label": "Datasource",
+        "type": "datasource",
+        "query": "prometheus",
+        "current": {"text": "Prometheus", "value": "Prometheus", "selected": false},
+        "hide": 0,
+        "includeAll": false,
+        "multi": false,
+        "refresh": 1,
+        "skipUrlSync": false
+      }
+    ]
+  },
+  "panels": [
+    {"type": "row", "id": 100, "title": "Overview", "collapsed": false, "gridPos": {"h": 1, "w": 24, "x": 0, "y": 0}},
+
+    {"type": "stat", "id": 1, "title": "Dish up", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 0, "y": 1},
+     "fieldConfig": {"defaults": {
+       "mappings": [{"type": "value", "options": {"0": {"text": "DOWN", "color": "red"}, "1": {"text": "UP", "color": "green"}}}],
+       "color": {"mode": "thresholds"},
+       "thresholds": {"mode": "absolute", "steps": [{"color":"red","value":null},{"color":"green","value":1}]}
+     }},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]}, "graphMode":"none","colorMode":"background","textMode":"value"},
+     "targets": [{"expr": "starlink_dish_up", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 2, "title": "Uptime", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 4, "y": 1},
+     "fieldConfig": {"defaults": {"unit":"s","color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"red","value":null},{"color":"green","value":300}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]}, "graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_uptime_seconds", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 3, "title": "Downlink", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 8, "y": 1},
+     "fieldConfig": {"defaults": {"unit":"bps","color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"red","value":null},{"color":"green","value":1000000}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]}, "graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_downlink_throughput_bps", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 4, "title": "Uplink", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 12, "y": 1},
+     "fieldConfig": {"defaults": {"unit":"bps","color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"red","value":null},{"color":"green","value":100000}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]}, "graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_uplink_throughput_bps", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 5, "title": "PoP ping", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 16, "y": 1},
+     "fieldConfig": {"defaults": {"unit":"s","color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"yellow","value":0.05},{"color":"orange","value":0.1},{"color":"red","value":0.2}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]}, "graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_pop_ping_latency_seconds", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 6, "title": "Power", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 20, "y": 1},
+     "fieldConfig": {"defaults": {"unit":"watt","color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"yellow","value":80},{"color":"red","value":120}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]}, "graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_power_input_watts", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "row", "id": 101, "title": "Throughput", "collapsed": false, "gridPos": {"h": 1, "w": 24, "x": 0, "y": 5}},
+
+    {"type": "timeseries", "id": 10, "title": "Downlink (bps)", "datasource": "$datasource",
+     "gridPos": {"h": 8, "w": 12, "x": 0, "y": 6},
+     "fieldConfig": {"defaults": {"unit":"bps","custom":{"lineWidth":1,"fillOpacity":15,"showPoints":"never"}}},
+     "options": {"legend":{"showLegend":true,"placement":"bottom"},"tooltip":{"mode":"multi"}},
+     "targets": [{"expr": "starlink_dish_downlink_throughput_bps", "legendFormat":"downlink", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "timeseries", "id": 11, "title": "Uplink (bps)", "datasource": "$datasource",
+     "gridPos": {"h": 8, "w": 12, "x": 12, "y": 6},
+     "fieldConfig": {"defaults": {"unit":"bps","custom":{"lineWidth":1,"fillOpacity":15,"showPoints":"never"}}},
+     "options": {"legend":{"showLegend":true,"placement":"bottom"},"tooltip":{"mode":"multi"}},
+     "targets": [{"expr": "starlink_dish_uplink_throughput_bps", "legendFormat":"uplink", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "row", "id": 102, "title": "Latency & reliability", "collapsed": false, "gridPos": {"h": 1, "w": 24, "x": 0, "y": 14}},
+
+    {"type": "timeseries", "id": 20, "title": "PoP ping latency (s)", "datasource": "$datasource",
+     "description": "Round-trip latency to the Starlink point-of-presence. Anything under 50ms is healthy; sustained >100ms suggests congestion or weather.",
+     "gridPos": {"h": 8, "w": 12, "x": 0, "y": 15},
+     "fieldConfig": {"defaults": {"unit":"s","custom":{"lineWidth":1,"fillOpacity":10,"showPoints":"never"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"yellow","value":0.05},{"color":"red","value":0.1}]}}},
+     "options": {"legend":{"showLegend":true,"placement":"bottom"},"tooltip":{"mode":"multi"}},
+     "targets": [{"expr": "starlink_dish_pop_ping_latency_seconds", "legendFormat":"pop", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "timeseries", "id": 21, "title": "PoP ping drop ratio", "datasource": "$datasource",
+     "description": "Fraction of pings dropped to the Starlink PoP — 0 is perfect, anything above 0 means packets are being lost upstream of the dish.",
+     "gridPos": {"h": 8, "w": 12, "x": 12, "y": 15},
+     "fieldConfig": {"defaults": {"unit":"percentunit","min":0,"max":1,"custom":{"lineWidth":1,"fillOpacity":30,"showPoints":"never"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"yellow","value":0.01},{"color":"red","value":0.05}]}}},
+     "options": {"legend":{"showLegend":true,"placement":"bottom"},"tooltip":{"mode":"multi"}},
+     "targets": [{"expr": "starlink_dish_pop_ping_drop_ratio", "legendFormat":"drop", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "row", "id": 103, "title": "Obstruction & signal", "collapsed": false, "gridPos": {"h": 1, "w": 24, "x": 0, "y": 23}},
+
+    {"type": "stat", "id": 30, "title": "Currently obstructed", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 0, "y": 24},
+     "fieldConfig": {"defaults": {
+       "mappings":[{"type":"value","options":{"0":{"text":"CLEAR","color":"green"},"1":{"text":"OBSTRUCTED","color":"red"}}}],
+       "color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"red","value":1}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"none","colorMode":"background","textMode":"value"},
+     "targets": [{"expr": "starlink_dish_currently_obstructed", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 31, "title": "Obstruction fraction", "datasource": "$datasource",
+     "description": "Fraction of the sky the dish believes is obstructed.",
+     "gridPos": {"h": 4, "w": 4, "x": 4, "y": 24},
+     "fieldConfig": {"defaults": {"unit":"percentunit","min":0,"max":1,"color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"yellow","value":0.05},{"color":"red","value":0.15}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_fraction_obstruction_ratio", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 32, "title": "Obstructed (last 24h)", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 8, "y": 24},
+     "fieldConfig": {"defaults": {"unit":"s","color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"green","value":null},{"color":"yellow","value":60},{"color":"red","value":600}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_last_24h_obstructed_seconds", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 33, "title": "GPS valid", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 12, "y": 24},
+     "fieldConfig": {"defaults": {
+       "mappings":[{"type":"value","options":{"0":{"text":"NO FIX","color":"red"},"1":{"text":"LOCKED","color":"green"}}}],
+       "color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"red","value":null},{"color":"green","value":1}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"none","colorMode":"background","textMode":"value"},
+     "targets": [{"expr": "starlink_dish_gps_valid", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 34, "title": "GPS satellites", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 16, "y": 24},
+     "fieldConfig": {"defaults": {"color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"red","value":null},{"color":"yellow","value":4},{"color":"green","value":8}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"area","colorMode":"value"},
+     "targets": [{"expr": "starlink_dish_gps_satellites", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "stat", "id": 35, "title": "SNR above noise floor", "datasource": "$datasource",
+     "gridPos": {"h": 4, "w": 4, "x": 20, "y": 24},
+     "fieldConfig": {"defaults": {
+       "mappings":[{"type":"value","options":{"0":{"text":"LOW","color":"red"},"1":{"text":"OK","color":"green"}}}],
+       "color":{"mode":"thresholds"},
+       "thresholds":{"mode":"absolute","steps":[{"color":"red","value":null},{"color":"green","value":1}]}}},
+     "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"none","colorMode":"background","textMode":"value"},
+     "targets": [{"expr": "starlink_dish_snr_above_noise_floor", "refId":"A", "datasource":"$datasource"}]},
+
+    {"type": "row", "id": 104, "title": "Dish position & info", "collapsed": true, "gridPos": {"h": 1, "w": 24, "x": 0, "y": 28},
+     "panels": [
+       {"type": "stat", "id": 40, "title": "Tilt", "datasource": "$datasource",
+        "gridPos": {"h": 4, "w": 6, "x": 0, "y": 29},
+        "fieldConfig": {"defaults": {"unit":"degree"}},
+        "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"none"},
+        "targets": [{"expr": "starlink_dish_tilt_angle_deg", "refId":"A", "datasource":"$datasource"}]},
+       {"type": "stat", "id": 41, "title": "Boresight azimuth", "datasource": "$datasource",
+        "gridPos": {"h": 4, "w": 6, "x": 6, "y": 29},
+        "fieldConfig": {"defaults": {"unit":"degree"}},
+        "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"none"},
+        "targets": [{"expr": "starlink_dish_boresight_azimuth_deg", "refId":"A", "datasource":"$datasource"}]},
+       {"type": "stat", "id": 42, "title": "Boresight elevation", "datasource": "$datasource",
+        "gridPos": {"h": 4, "w": 6, "x": 12, "y": 29},
+        "fieldConfig": {"defaults": {"unit":"degree"}},
+        "options": {"reduceOptions":{"calcs":["lastNotNull"]},"graphMode":"none"},
+        "targets": [{"expr": "starlink_dish_boresight_elevation_deg", "refId":"A", "datasource":"$datasource"}]},
+       {"type": "table", "id": 43, "title": "Dish info", "datasource": "$datasource",
+        "gridPos": {"h": 6, "w": 24, "x": 0, "y": 33},
+        "options": {"showHeader": true},
+        "targets": [{"expr": "starlink_dish_info", "refId":"A", "instant": true, "format":"table", "datasource":"$datasource"}],
+        "transformations": [{"id":"organize","options":{"excludeByName":{"Time":true,"Value":true,"__name__":true,"app_kubernetes_io_instance":true,"app_kubernetes_io_name":true,"instance":true,"job":true,"namespace":true,"service":true}}}]}
+     ]}
+  ]
+}

home/cluster/argocd/apps/starlink-exporter.yaml

@@ -0,0 +1,23 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: starlink-exporter
+  namespace: argocd
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+  source:
+    repoURL: https://codeberg.org/gmcintire/infra.git
+    targetRevision: main
+    path: home/cluster/starlink-exporter
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: monitoring
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true

home/cluster/starlink-exporter/deployment.yaml

@@ -0,0 +1,55 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: starlink-exporter
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: starlink-exporter
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: starlink-exporter
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: starlink-exporter
+    spec:
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 65532
+        runAsGroup: 65532
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: exporter
+          image: docker.io/joshuasing/starlink_exporter:0.9.0
+          # Defaults already match this network: -dish 192.168.100.1:9200,
+          # -listen :9451. Dish is reachable via 10.0.15.254 (home router)
+          # while the Starlink router is in bypass mode.
+          ports:
+            - name: metrics
+              containerPort: 9451
+              protocol: TCP
+          resources:
+            requests:
+              cpu: 10m
+              memory: 24Mi
+            limits:
+              memory: 96Mi
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop: ["ALL"]
+          readinessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+            periodSeconds: 15
+          livenessProbe:
+            httpGet:
+              path: /metrics
+              port: metrics
+            periodSeconds: 30
+            failureThreshold: 5

home/cluster/starlink-exporter/kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - deployment.yaml
+  - service.yaml

home/cluster/starlink-exporter/service.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: starlink-exporter
+  namespace: monitoring
+  labels:
+    app.kubernetes.io/name: starlink-exporter
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/port: "9451"
+spec:
+  selector:
+    app.kubernetes.io/name: starlink-exporter
+  ports:
+    - name: metrics
+      port: 9451
+      targetPort: metrics
+      protocol: TCP