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Server Infrastructure Monitoring & Comparison

A centralized Grafana dashboard for real-time server monitoring and performance comparison, powered by Prometheus and Node Exporter.

Key Features

  • Multi-Select: Select multiple servers for simultaneous monitoring.
  • Select All: Display all servers by default.
  • Server Health: Monitor server availability (UP/DOWN).
  • Resource Monitoring: Track CPU, RAM, Disk, and Swap usage.
  • Network Monitoring: Monitor incoming (RX) and outgoing (TX) traffic.
  • Server Comparison: Compare selected servers using interactive charts.
  • Hostname & IP: Display server hostnames alongside their IP addresses.
  • Uptime: Track server uptime and availability.

How to Use

  1. Select servers using the Servers dropdown.
  2. Choose All to monitor every server.
  3. Use Compare Selected Servers to analyze performance differences.
  4. Check the All Servers table for a complete infrastructure overview.

Technology Stack

Grafana · Prometheus · Node Exporter · PromQL

Goal: Simplify infrastructure monitoring, identify performance bottlenecks, and enable efficient server management through centralized visualization.

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      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "x": 0,
        "y": 60,
        "w": 12,
        "h": 9
      },
      "targets": [
        {
          "refId": "A",
          "expr": "100 * (1 - node_filesystem_avail_bytes{job=~\"node-exporter|node-exporter-https\",instance=~\"${server:regex}\",mountpoint=\"/\",fstype!~\"tmpfs|overlay\"} / node_filesystem_size_bytes{job=~\"node-exporter|node-exporter-https\",instance=~\"${server:regex}\",mountpoint=\"/\",fstype!~\"tmpfs|overlay\"})",
          "legendFormat": "{{hostname}} | {{instance}}"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "percent",
          "min": 0,
          "custom": {
            "drawStyle": "line",
            "lineWidth": 2,
            "showPoints": "never",
            "spanNulls": false
          },
          "max": 100
        },
        "overrides": []
      },
      "options": {
        "legend": {
          "displayMode": "list",
          "placement": "bottom",
          "calcs": [
            "lastNotNull"
          ]
        },
        "tooltip": {
          "mode": "multi",
          "sort": "desc"
        }
      }
    },
    {
      "id": 17,
      "title": "Network RX comparison",
      "type": "timeseries",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "x": 12,
        "y": 60,
        "w": 12,
        "h": 9
      },
      "targets": [
        {
          "refId": "A",
          "expr": "sum by(instance,hostname,job)(rate(node_network_receive_bytes_total{job=~\"node-exporter|node-exporter-https\",instance=~\"${server:regex}\",device!~\"lo|veth.*|docker.*|br-.*\"}[5m]))",
          "legendFormat": "{{hostname}} | {{instance}}"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "Bps",
          "min": 0,
          "custom": {
            "drawStyle": "line",
            "lineWidth": 2,
            "showPoints": "never",
            "spanNulls": false
          }
        },
        "overrides": []
      },
      "options": {
        "legend": {
          "displayMode": "list",
          "placement": "bottom",
          "calcs": [
            "lastNotNull"
          ]
        },
        "tooltip": {
          "mode": "multi",
          "sort": "desc"
        }
      }
    },
    {
      "id": 18,
      "title": "Network TX comparison",
      "type": "timeseries",
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "gridPos": {
        "x": 0,
        "y": 69,
        "w": 12,
        "h": 9
      },
      "targets": [
        {
          "refId": "A",
          "expr": "sum by(instance,hostname,job)(rate(node_network_transmit_bytes_total{job=~\"node-exporter|node-exporter-https\",instance=~\"${server:regex}\",device!~\"lo|veth.*|docker.*|br-.*\"}[5m]))",
          "legendFormat": "{{hostname}} | {{instance}}"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "Bps",
          "min": 0,
          "custom": {
            "drawStyle": "line",
            "lineWidth": 2,
            "showPoints": "never",
            "spanNulls": false
          }
        },
        "overrides": []
      },
      "options": {
        "legend": {
          "displayMode": "list",
          "placement": "bottom",
          "calcs": [
            "lastNotNull"
          ]
        },
        "tooltip": {
          "mode": "multi",
          "sort": "desc"
        }
      }
    }
  ],
  "description": "Node exporter infrastructure overview for the supplied Prometheus jobs. Hostnames are read dynamically from the hostname label; no hardcoded server names.",
  "id": null
}