Add a simple service SLI dashboard

roles/ai3-prometheus/files/grafana/dashboards/sli.json

+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "grafana",
+          "uid": "-- Grafana --"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "target": {
+          "limit": 100,
+          "matchAny": false,
+          "tags": [],
+          "type": "dashboard"
+        },
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 0,
+  "id": 44,
+  "links": [],
+  "liveNow": false,
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "P49960DE5880E8C68"
+      },
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "thresholds"
+          },
+          "decimals": 3,
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "red"
+              },
+              {
+                "color": "#EAB839",
+                "value": 0.996
+              },
+              {
+                "color": "green",
+                "value": 0.999
+              }
+            ]
+          },
+          "unit": "percentunit"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 31,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 2,
+      "options": {
+        "displayMode": "basic",
+        "minVizHeight": 10,
+        "minVizWidth": 0,
+        "orientation": "horizontal",
+        "reduceOptions": {
+          "calcs": [],
+          "fields": "/^Value$/",
+          "limit": 50,
+          "values": true
+        },
+        "showUnfilled": true
+      },
+      "pluginVersion": "9.3.2",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "P49960DE5880E8C68"
+          },
+          "editorMode": "code",
+          "exemplar": false,
+          "expr": "avg_over_time(max(probe_success{prober_float_service=\"$prober_float_service\"}) by (probe)[30d:])",
+          "format": "table",
+          "instant": true,
+          "legendFormat": "{{probe}}",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "Service SLI",
+      "transformations": [
+        {
+          "id": "sortBy",
+          "options": {
+            "fields": {},
+            "sort": [
+              {
+                "desc": false,
+                "field": "Value"
+              }
+            ]
+          }
+        }
+      ],
+      "type": "bargauge"
+    }
+  ],
+  "schemaVersion": 37,
+  "style": "dark",
+  "tags": [],
+  "templating": {
+    "list": [
+      {
+        "current": {
+          "selected": false,
+          "text": "ai3-prober",
+          "value": "ai3-prober"
+        },
+        "datasource": {
+          "type": "prometheus",
+          "uid": "P49960DE5880E8C68"
+        },
+        "definition": "label_values(probe_success, prober_float_service)",
+        "hide": 0,
+        "includeAll": false,
+        "multi": false,
+        "name": "prober_float_service",
+        "options": [],
+        "query": {
+          "query": "label_values(probe_success, prober_float_service)",
+          "refId": "StandardVariableQuery"
+        },
+        "refresh": 1,
+        "regex": "",
+        "skipUrlSync": false,
+        "sort": 0,
+        "type": "query"
+      }
+    ]
+  },
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "",
+  "title": "Service SLI",
+  "uid": "26rk7GhVz",
+  "version": 2,
+  "weekStart": ""
+}