Grafana dashboard for Dockerized Node.js
I've been playing with observability tools for a while, mainly Grafana and Prometheus, and I've created a dashboard that may be useful to someone. What does it contain?
Machine stats:
- CPU Utilization: Displays the percentage of CPU used across all cores.
- System Load: Represents the system load average.
- Memory Usage: Separate gauges for RAM and Swap usage monitor memory consumption.
- Disk Usage: Shows the percentage of root filesystem used.
Docker containers stats:
- CPU Usage: A stacked area chart showing CPU usage percentage for each container over time.
- Memory Usage: A stacked area chart displaying memory consumption for each container.
Nginx stats:
- RPS: Shows the current Requests Per Second.
- RPM: Similar to RPS, but averaged over a minute.
- Concurrent Connections: Displays the number of active connections to Nginx.
- Idle Connections: Shows currently idle connections.
- Active Connections Graph: A time series chart of active, reading, waiting, and writing connections over time.
Source
To make it work, you need to configure a few tools:
- Prometheus: A monitoring and alerting toolkit.
- cAdvisor: A container monitoring tool.
- Node Exporter: A Prometheus exporter for hardware and OS metrics.
- Nginx Exporter: A Prometheus exporter for Nginx web server metrics.
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"uid": "-- Grafana --"
},
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"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
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"type": "dashboard"
}
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}Published on September 14, 2024 • 16 min read