Grafana dashboard: MySQL Router via Prometheus exporter
Description: https://github.com/rluisr/mysqlrouter_exporter

Dashboard for MySQL Router.
Use this exporter https://github.com/rluisr/mysqlrouter_exporter

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          "instant": true,
          "intervalFactor": 1,
          "legendFormat": "",
          "refId": "B"
        },
        {
          "expr": "mysqlrouter_route_connections_byte_from_server{name=~\"$cluster.*\", router_hostname=\"$host\"}",
          "format": "table",
          "hide": false,
          "instant": true,
          "intervalFactor": 1,
          "refId": "A"
        },
        {
          "expr": "mysqlrouter_route_connections_time_connected_to_server{name=~\"$cluster.*\", router_hostname=\"$host\"}",
          "format": "table",
          "instant": true,
          "intervalFactor": 1,
          "refId": "C"
        },
        {
          "expr": "mysqlrouter_route_connections_time_last_received_from_server{name=~\"$cluster.*\", router_hostname=\"$host\"}",
          "format": "table",
          "instant": true,
          "refId": "D"
        },
        {
          "expr": "mysqlrouter_route_connections_time_last_sent_to_server{name=~\"$cluster.*\", router_hostname=\"$host\"}",
          "format": "table",
          "instant": true,
          "refId": "E"
        },
        {
          "expr": "mysqlrouter_route_connections_time_started{name=~\"$cluster.*\", router_hostname=\"$host\"}",
          "format": "table",
          "instant": true,
          "refId": "F"
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "$host - All Connections Information",
      "transform": "table",
      "type": "table"
    }
  ],
  "refresh": "5m",
  "schemaVersion": 21,
  "style": "dark",
  "tags": [],
  "templating": {
    "list": [
      {
        "allValue": null,
        "current": {},
        "datasource": "${DS_PROMETHEUS}",
        "definition": "label_values(mysqlrouter_router_status, hostname)",
        "hide": 0,
        "includeAll": false,
        "label": null,
        "multi": false,
        "name": "host",
        "options": [],
        "query": "label_values(mysqlrouter_router_status, hostname)",
        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
        "sort": 1,
        "tagValuesQuery": "",
        "tags": [],
        "tagsQuery": "",
        "type": "query",
        "useTags": false
      },
      {
        "allValue": null,
        "current": {},
        "datasource": "${DS_PROMETHEUS}",
        "definition": "label_values(mysqlrouter_metadata, name)",
        "hide": 0,
        "includeAll": false,
        "label": null,
        "multi": false,
        "name": "cluster",
        "options": [],
        "query": "label_values(mysqlrouter_metadata, name)",
        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
        "sort": 1,
        "tagValuesQuery": "",
        "tags": [],
        "tagsQuery": "",
        "type": "query",
        "useTags": false
      }
    ]
  },
  "time": {
    "from": "now-24h",
    "to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s",
      "10s",
      "30s",
      "1m",
      "5m",
      "15m",
      "30m",
      "1h",
      "2h",
      "1d"
    ]
  },
  "timezone": "",
  "title": "MySQL Router via Prometheus exporter",
  "uid": "8_sRZYdZk",
  "version": 33
}