Grafana dashboard: Traefik  Realtime Stats
Description: Visualize Traefik Health Metrics

 - First, you would need to start your traefik instance with these parameters:
```traefik --web.metrics --web.metrics.prometheus```
- Then you would need to make Prometheus aware of this endpoint.
Since I run traefik in a Docker Swarm, I used it's DNS capabilities to discover my traefik instance launched as a service called "load-balancer".

*(Please note the dashboard relies on it to get some stats, so you may need to edit the JSON if your service name is different)*

Here is the Prometheus config snippet I use (8080 is the web port traefik is listening, can be configured by adding --web.address=:8080 to traefik):

```
- job_name: 'load-balancer'
    dns_sd_configs:
    - names:
      - 'tasks.load-balancer'
      type: 'A'
      port: 8080
```

{
  "__inputs": [
    {
      "name": "DS_PROMETHEUS",
      "label": "Prometheus",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }
  ],
  "__requires": [
    {
      "type": "grafana",
      "id": "grafana",
      "name": "Grafana",
      "version": "4.6.2"
    },
    {
      "type": "panel",
      "id": "graph",
      "name": "Graph",
      "version": ""
    },
    {
      "type": "datasource",
      "id": "prometheus",
      "name": "Prometheus",
      "version": "1.0.0"
    }
  ],
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": "-- Grafana --",
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "type": "dashboard"
      }
    ]
  },
  "description": "Visualize Traefik Health Metrics",
  "editable": true,
  "gnetId": 2240,
  "graphTooltip": 0,
  "hideControls": false,
  "id": null,
  "links": [],
  "refresh": "30s",
  "rows": [
    {
      "collapse": false,
      "height": 288,
      "panels": [
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_PROMETHEUS}",
          "fill": 1,
          "id": 1,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 1,
          "links": [],
          "nullPointMode": "null",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "spaceLength": 10,
          "span": 4,
          "stack": false,
          "steppedLine": false,
          "targets": [
            {
              "expr": "sum(traefik_entrypoint_requests_total) by (protocol)",
              "format": "time_series",
              "interval": "",
              "intervalFactor": 2,
              "legendFormat": "{{ protocol }}",
              "metric": "",
              "refId": "A",
              "step": 240
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeShift": null,
          "title": "Total requests",
          "tooltip": {
            "shared": true,
            "sort": 0,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
            "buckets": null,
            "mode": "time",
            "name": null,
            "show": true,
            "values": []
          },
          "yaxes": [
            {
              "format": "none",
              "label": "Count",
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            },
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": false
            }
          ]
        },
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_PROMETHEUS}",
          "fill": 1,
          "id": 2,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 1,
          "links": [],
          "nullPointMode": "null",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "spaceLength": 10,
          "span": 3,
          "stack": false,
          "steppedLine": false,
          "targets": [
            {
              "expr": "sum(traefik_backend_request_duration_seconds_sum) / sum(traefik_backend_requests_total) * 1000",
              "format": "time_series",
              "intervalFactor": 2,
              "legendFormat": "Average response time (ms)",
              "refId": "A",
              "step": 240
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeShift": null,
          "title": "Average response time",
          "tooltip": {
            "shared": true,
            "sort": 0,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
            "buckets": null,
            "mode": "time",
            "name": null,
            "show": true,
            "values": []
          },
          "yaxes": [
            {
              "format": "ms",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            },
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            }
          ]
        },
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_PROMETHEUS}",
          "fill": 1,
          "id": 6,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 1,
          "links": [],
          "nullPointMode": "null",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "spaceLength": 10,
          "span": 5,
          "stack": false,
          "steppedLine": false,
          "targets": [
            {
              "expr": "sum(rate(traefik_backend_requests_total[5m]))",
              "format": "time_series",
              "interval": "",
              "intervalFactor": 2,
              "legendFormat": "{{requests}}",
              "refId": "A",
              "step": 120
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeShift": null,
          "title": "Requests in last 5 minutes",
          "tooltip": {
            "shared": true,
            "sort": 0,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
            "buckets": null,
            "mode": "time",
            "name": null,
            "show": true,
            "values": []
          },
          "yaxes": [
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            },
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            }
          ]
        }
      ],
      "repeat": null,
      "repeatIteration": null,
      "repeatRowId": null,
      "showTitle": false,
      "title": "General info",
      "titleSize": "h6"
    },
    {
      "collapse": false,
      "height": 412,
      "panels": [
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_PROMETHEUS}",
          "decimals": 0,
          "fill": 1,
          "id": 5,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 1,
          "links": [],
          "nullPointMode": "null",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "spaceLength": 10,
          "span": 4,
          "stack": false,
          "steppedLine": false,
          "targets": [
            {
              "expr": "sum(rate(traefik_backend_requests_total{protocol=~\"http|https\",code=\"200\"}[5m])) by (backend,method)",
              "format": "time_series",
              "intervalFactor": 2,
              "legendFormat": "{{service}} {{method}}",
              "refId": "A",
              "step": 240
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeShift": null,
          "title": "Successful Status Code Count (5min)",
          "tooltip": {
            "shared": true,
            "sort": 0,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
            "buckets": null,
            "mode": "time",
            "name": null,
            "show": true,
            "values": []
          },
          "yaxes": [
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            },
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": false
            }
          ]
        },
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_PROMETHEUS}",
          "decimals": 0,
          "fill": 1,
          "id": 4,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 1,
          "links": [],
          "nullPointMode": "null",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "spaceLength": 10,
          "span": 4,
          "stack": false,
          "steppedLine": false,
          "targets": [
            {
              "expr": "sum(rate(traefik_backend_requests_total{protocol=~\"http|https\",code!=\"200\"}[5m])) by (backend,method,code)",
              "format": "time_series",
              "interval": "",
              "intervalFactor": 2,
              "legendFormat": "{{backend}} {{method}} {{code}}",
              "refId": "A",
              "step": 240
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeShift": null,
          "title": "Bad Status Code Count (5m)",
          "tooltip": {
            "shared": true,
            "sort": 0,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
            "buckets": null,
            "mode": "time",
            "name": null,
            "show": true,
            "values": []
          },
          "yaxes": [
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            },
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": false
            }
          ]
        },
        {
          "aliasColors": {},
          "bars": false,
          "dashLength": 10,
          "dashes": false,
          "datasource": "${DS_PROMETHEUS}",
          "fill": 1,
          "id": 7,
          "legend": {
            "avg": false,
            "current": false,
            "max": false,
            "min": false,
            "show": true,
            "total": false,
            "values": false
          },
          "lines": true,
          "linewidth": 1,
          "links": [],
          "nullPointMode": "null as zero",
          "percentage": false,
          "pointradius": 5,
          "points": false,
          "renderer": "flot",
          "seriesOverrides": [],
          "spaceLength": 10,
          "span": 4,
          "stack": true,
          "steppedLine": false,
          "targets": [
            {
              "expr": "process_open_fds{job=~\"load-balancer\"}",
              "format": "time_series",
              "interval": "",
              "intervalFactor": 2,
              "legendFormat": "{{ instance }}",
              "refId": "A",
              "step": 240
            }
          ],
          "thresholds": [],
          "timeFrom": null,
          "timeShift": null,
          "title": "Used sockets",
          "tooltip": {
            "shared": true,
            "sort": 0,
            "value_type": "individual"
          },
          "type": "graph",
          "xaxis": {
            "buckets": null,
            "mode": "time",
            "name": null,
            "show": true,
            "values": []
          },
          "yaxes": [
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            },
            {
              "format": "short",
              "label": null,
              "logBase": 1,
              "max": null,
              "min": null,
              "show": true
            }
          ]
        }
      ],
      "repeat": null,
      "repeatIteration": null,
      "repeatRowId": null,
      "showTitle": false,
      "title": "Dashboard Row",
      "titleSize": "h6"
    }
  ],
  "schemaVersion": 14,
  "style": "dark",
  "tags": [
    "traefik",
    "load-balancer"
  ],
  "templating": {
    "list": []
  },
  "time": {
    "from": "now-12h",
    "to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s",
      "10s",
      "30s",
      "1m",
      "5m",
      "15m",
      "30m",
      "1h",
      "2h",
      "1d"
    ],
    "time_options": [
      "5m",
      "15m",
      "1h",
      "6h",
      "12h",
      "24h",
      "2d",
      "7d",
      "30d"
    ]
  },
  "timezone": "browser",
  "title": "Traefik  Realtime Stats",
  "version": 8
}