devops-app

Node.js Application Monitoring with Prometheus and Grafana

The repository contains a sample Node.js app that 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.

This app is deployed on a container instance in Azure Link to app

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/inesouledelhaj/devops-app.git

Navigate into the project directory:

cd devops-app

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 monitoring should be accessible via http://localhost:8080/metrics

Open monitoring dashboards

Open in your web browser the monitoring dashboards:

• NodeJS Application Dashboard
• High Level Application metrics
• Node Service Level Metrics Dashboard
• NodeJS Request Flow Dashboard

Diagram of workflow