Node.js Application Monitoring with Prometheus and Grafana

We discuss this repository in this article in detail: https://codersociety.com/blog/articles/nodejs-application-monitoring-with-prometheus-and-grafana

The repository contains a sample Node.js app which integrates the Prometheus client for node.js and exposes metrics on http://localhost:8080/metrics. The metrics are periodically scraped by Prometheus and visualized through a Grafana monitoring dashboard.

Prerequisites

Make sure that you have Docker and Docker Compose installed:

• Docker Engine
• Docker Compose

Getting started

Clone the repository:

git clone https://github.com/coder-society/nodejs-monitoring-with-prometheus-and-grafana.git

Navigate into the project directory:

cd nodejs-monitoring-with-prometheus-and-grafana

Start the Docker containers:

docker-compose up -d

Test containers

• Prometheus should be accessible via http://localhost:9090

• Grafana should be accessible via http://localhost:3000

• Example Node.js server metrics for RED monitoring should be accessible via http://localhost:8080/metrics

• https://dev.to/austincunningham/use-grafana-to-plot-express-js-apps-metrics-364n

Open monitoring dashboards

Open in your web browser the monitoring dashboards:

• Monitoring dashboard for the Node.js app can be found onhttp://localhost:3000/d/1DYaynomMk/example-service-dashboard