Grafana dashboard: NGINX Ingress controller
Description: Ingress-nginx supports a rich collection of prometheus metrics. If you have prometheus and grafana installed on your cluster then prometheus will already be scraping this data due to the scrape annotation on the deployment.

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    {
      "aliasColors": {
        "max - istio-proxy": "#890f02",
        "max - master": "#bf1b00"
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      "bars": false,
      "dashLength": 10,
      "dashes": false,
      "datasource": "${DS_PROMETHEUS}",
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      "gridPos": {
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      "renderer": "flot",
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      "spaceLength": 10,
      "stack": false,
      "steppedLine": false,
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      ],
      "timeFrom": null,
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      "tooltip": {
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        "value_type": "cumulative"
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      "repeat": null,
      "repeatDirection": "h",
      "scroll": true,
      "showHeader": true,
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      "styles": [
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          "unit": "dtdurations"
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          "decimals": 0,
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        {
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          "colorMode": null,
          "colors": [
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          "thresholds": [
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          "type": "number",
          "unit": "Bps"
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            "rgba(245, 54, 54, 0.9)",
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          "dateFormat": "YYYY-MM-DD HH:mm:ss",
          "decimals": 2,
          "pattern": "Time",
          "thresholds": [],
          "type": "hidden",
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        {
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          "mappingType": 1,
          "pattern": "Value #G",
          "thresholds": [],
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          "unit": "Bps"
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      ],
      "targets": [
        {
          "expr": "histogram_quantile(0.50, sum(rate(nginx_ingress_controller_request_duration_seconds_bucket{ingress!=\"\",controller_pod=~\"$controller\",controller_class=~\"$controller_class\",controller_namespace=~\"$namespace\",ingress=~\"$ingress\"}[2m])) by (le, ingress))",
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          "hide": false,
          "instant": true,
          "intervalFactor": 1,
          "legendFormat": "{{ ingress }}",
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        {
          "expr": "histogram_quantile(0.90, sum(rate(nginx_ingress_controller_request_duration_seconds_bucket{ingress!=\"\",controller_pod=~\"$controller\",controller_class=~\"$controller_class\",controller_namespace=~\"$namespace\",ingress=~\"$ingress\"}[2m])) by (le, ingress))",
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          "hide": false,
          "instant": true,
          "intervalFactor": 1,
          "legendFormat": "{{ ingress }}",
          "refId": "D"
        },
        {
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          "format": "table",
          "hide": false,
          "instant": true,
          "intervalFactor": 1,
          "legendFormat": "{{ destination_service }}",
          "refId": "E"
        },
        {
          "expr": "sum(irate(nginx_ingress_controller_request_size_sum{ingress!=\"\",controller_pod=~\"$controller\",controller_class=~\"$controller_class\",controller_namespace=~\"$namespace\",ingress=~\"$ingress\"}[2m])) by (ingress)",
          "format": "table",
          "hide": false,
          "instant": true,
          "interval": "",
          "intervalFactor": 1,
          "legendFormat": "{{ ingress }}",
          "refId": "F"
        },
        {
          "expr": "sum(irate(nginx_ingress_controller_response_size_sum{ingress!=\"\",controller_pod=~\"$controller\",controller_class=~\"$controller_class\",controller_namespace=~\"$namespace\",ingress=~\"$ingress\"}[2m])) by (ingress)",
          "format": "table",
          "instant": true,
          "intervalFactor": 1,
          "legendFormat": "{{ ingress }}",
          "refId": "G"
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      ],
      "timeFrom": null,
      "title": "Ingress Percentile Response Times and Transfer Rates",
      "transform": "table",
      "transparent": false,
      "type": "table"
    },
    {
      "columns": [
        {
          "text": "Current",
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      ],
      "datasource": "${DS_PROMETHEUS}",
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      },
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      "scroll": true,
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          "dateFormat": "YYYY-MM-DD HH:mm:ss",
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      ],
      "targets": [
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          "intervalFactor": 1,
          "legendFormat": "{{ host }}",
          "metric": "gke_letsencrypt_cert_expiration",
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          "step": 1
        }
      ],
      "title": "Ingress Certificate Expiry",
      "transform": "timeseries_aggregations",
      "type": "table"
    }
  ],
  "refresh": "5s",
  "schemaVersion": 16,
  "style": "dark",
  "tags": [
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  "templating": {
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        "datasource": "${DS_PROMETHEUS}",
        "hide": 0,
        "includeAll": true,
        "label": "Namespace",
        "multi": false,
        "name": "namespace",
        "options": [],
        "query": "label_values(nginx_ingress_controller_config_hash, controller_namespace)",
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        "regex": "",
        "sort": 0,
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        "datasource": "${DS_PROMETHEUS}",
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        "includeAll": true,
        "label": "Controller Class",
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        "label": "Ingress",
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        "query": "label_values(nginx_ingress_controller_requests{namespace=~\"$namespace\",controller_class=~\"$controller_class\",controller=~\"$controller\"}, ingress) ",
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  "timepicker": {
    "refresh_intervals": [
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    "time_options": [
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}