Grafana dashboard: Consul Monitoring
Description: Get performance metrics from Consul metrics prometheus endpoint /agent/metrics?format=prometheus. Tested with Consul 1.4.4, Prometheus 2.10.0 and Grafana 6.2.4. Although can potentially work with other versions.

Data flow: Consul -> Prometheus -> Grafana.

In each Consul agent Prometheus config should be present as described here https://www.consul.io/docs/agent/options.html#telemetry-prometheus_retention_time.

Job collector should be added in Prometheus config like: 

scrape_configs:
  - job_name: 'consul'\
    metrics_path: /v1/agent/metrics\
    params:\
      format: ['prometheus']\
    static_configs:
      - targets:
          - 'node1_host:8500'
          - 'node2_host:8500'

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      "pluginName": "Prometheus"
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        "type": "dashboard"
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  "description": "Get performance metrics from Consul metrics prometheus endpoint /agent/metrics?format=prometheus. Tested with Consul 1.4.4, Prometheus 2.10.0 and Grafana 6.2.4. Although can potentially work with other versions.",
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      "steppedLine": false,
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          "hide": true,
          "intervalFactor": 1,
          "refId": "B"
        },
        {
          "expr": "consul_memberlist_health_score{instance=\"$consul\"}",
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      "tableColumn": "",
      "targets": [
        {
          "expr": "COUNT (changes(consul_memberlist_gossip_sum[1m]) > 0) BY (labels)",
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          "legendFormat": "",
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      "bars": false,
      "cacheTimeout": null,
      "dashLength": 10,
      "dashes": false,
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      "gridPos": {
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        "w": 6,
        "x": 12,
        "y": 0
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      "cacheTimeout": null,
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      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
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        "w": 6,
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      "steppedLine": false,
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      "timeRegions": [],
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        "sort": 0,
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        "x": 0,
        "y": 5
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        "max": false,
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      "points": false,
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      "stack": false,
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          "instant": false,
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      "timeShift": null,
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        "sort": 0,
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          "show": true
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      "dashes": false,
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      "gridPos": {
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        "w": 12,
        "x": 12,
        "y": 5
      },
      "id": 18,
      "legend": {
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        "max": false,
        "min": false,
        "show": true,
        "total": false,
        "values": false
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      "linewidth": 1,
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          "legendFormat": "",
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        },
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          "format": "time_series",
          "intervalFactor": 1,
          "refId": "B"
        },
        {
          "expr": "consul_serf_member_left{instance=\"$consul\"}",
          "format": "time_series",
          "intervalFactor": 1,
          "legendFormat": "",
          "refId": "C"
        },
        {
          "expr": "consul_serf_member_update{instance=\"$consul\"}",
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          "intervalFactor": 1,
          "refId": "D"
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      "timeRegions": [],
      "timeShift": null,
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      "cacheTimeout": null,
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      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
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      "gridPos": {
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        "x": 0,
        "y": 11
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        "min": false,
        "show": true,
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        "values": false
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      "percentage": false,
      "pointradius": 2,
      "points": false,
      "renderer": "flot",
      "seriesOverrides": [],
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      "stack": false,
      "steppedLine": false,
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          "expr": "irate(consul_runtime_gc_pause_ns{instance=\"$consul\"}[1m])/1000000",
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          "intervalFactor": 1,
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        {
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          "legendFormat": "sum/1m {{quantile}}%",
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      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
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        "shared": true,
        "sort": 0,
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        "show": true,
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      "yaxes": [
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          "format": "ms",
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    },
    {
      "aliasColors": {},
      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
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        "y": 11
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      "id": 9,
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      "stack": false,
      "steppedLine": false,
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      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
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        "shared": true,
        "sort": 0,
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      "type": "graph",
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          "min": "0",
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      "bars": false,
      "cacheTimeout": null,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
      "description": "This measures the number of bytes allocated by the Consul process. Consul keeps all of its data in memory. If Consul consumes all available memory, it will crash.",
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        "w": 12,
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      "repeatDirection": "h",
      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
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          "instant": false,
          "intervalFactor": 2,
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          "step": 60
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      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
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        "value_type": "individual"
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      "yaxes": [
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    },
    {
      "aliasColors": {},
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      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
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        "show": true,
        "total": false,
        "values": false
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      "seriesOverrides": [],
      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
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          "interval": "",
          "intervalFactor": 2,
          "legendFormat": "raft_commitTime {{quantile}}%",
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          "step": 10
        },
        {
          "expr": "irate(consul_serf_snapshot_appendLine{instance=\"$consul\"}[1m])",
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      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
      "title": "Commit time Leader",
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        "sort": 0,
        "value_type": "individual"
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    },
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      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "irate(consul_memberlist_tcp_connect{instance=\"$consul\"}[1m])",
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          "expr": "irate(consul_memberlist_tcp_accept{instance=\"$consul\"}[1m])",
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      "thresholds": [],
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      "timeRegions": [],
      "timeShift": null,
      "title": "Memberlist TCP Messages",
      "tooltip": {
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        "sort": 0,
        "value_type": "individual"
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      "type": "graph",
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      "stack": false,
      "steppedLine": false,
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      "timeRegions": [],
      "timeShift": null,
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    },
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      "stack": false,
      "steppedLine": false,
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          "intervalFactor": 2,
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      "timeRegions": [],
      "timeShift": null,
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        "sort": 0,
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    },
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      "dashLength": 10,
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      "datasource": "${DS_PROMETHEUS}",
      "description": "This measures the time it takes to replicate log entries to followers. This is a general indicator of the load pressure on the Consul servers, as well as the performance of the communication between the servers.",
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      "gridPos": {
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      "stack": false,
      "steppedLine": false,
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      "thresholds": [],
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    },
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      "datasource": "${DS_PROMETHEUS}",
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      "id": 12,
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      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
      "targets": [
        {
          "expr": "delta(consul_rpc_query{host=\"$consul\"}[30s])",
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          "intervalFactor": 2,
          "legendFormat": "Requests",
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          "step": 10
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      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
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      "tooltip": {
        "shared": true,
        "sort": 0,
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    },
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      "aliasColors": {},
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      "dashLength": 10,
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      "gridPos": {
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      "stack": false,
      "steppedLine": false,
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          "interval": "",
          "intervalFactor": 2,
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      ],
      "thresholds": [],
      "timeFrom": null,
      "timeRegions": [],
      "timeShift": null,
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    },
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          "intervalFactor": 2,
          "legendFormat": "",
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        },
        {
          "expr": "process_open_fds{instance=\"$consul\"}",
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      "thresholds": [],
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      "timeShift": null,
      "title": "File Descriptors",
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    },
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      "stack": false,
      "steppedLine": false,
      "targets": [
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          "expr": "consul_catalog_service_not_found{instance=\"$consul\"}",
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      "targets": [
        {
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          "intervalFactor": 2,
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      "timeRegions": [],
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  "style": "dark",
  "tags": [],
  "templating": {
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      {
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        "current": {},
        "datasource": "${DS_PROMETHEUS}",
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        "hide": 0,
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        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
        "sort": 0,
        "tagValuesQuery": "",
        "tags": [],
        "tagsQuery": "",
        "type": "query",
        "useTags": false
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    ]
  },
  "time": {
    "from": "now-1h",
    "to": "now"
  },
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    "refresh_intervals": [
      "5s",
      "10s",
      "30s",
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  },
  "timezone": "browser",
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}