ZonedAccuracy Cloud Observability Platform

A containerized observability platform demonstrating metrics collection, visualization, health monitoring, and automated alerting using Prometheus, Grafana, Alertmanager, Docker, and Node.js.

Architecture

ZonedAccuracy Application
          |
          | /metrics
          v
      Prometheus
       /       \
      v         v
 Grafana     Alert Rules
 Dashboard       |
                 v
            Alertmanager

Features

• Containerized monitoring stack using Docker Compose
• Prometheus metrics collection
• Grafana dashboard provisioning
• Application health monitoring
• Request and error counters
• Request-rate visualization
• Error-rate visualization
• Automated Prometheus alert rules
• Alertmanager integration
• Reproducible infrastructure configuration

Observability Stack

Node.js Application

Provides:

GET /
GET /health
GET /metrics
GET /error

The /metrics endpoint exposes Prometheus-compatible application telemetry.

Prometheus

Collects application metrics every 15 seconds and evaluates alerting rules.

Metrics include:

zonedaccuracy_requests_total
zonedaccuracy_errors_total
zonedaccuracy_service_up

Grafana

Provides the ZonedAccuracy Cloud Observability dashboard with:

• Service Status
• Total Requests
• Total Errors
• Request Rate
• Error Rate

Alertmanager

Receives alerts generated by Prometheus and provides centralized alert management.

Alert Rules

High Error Count

Triggers when more than five application errors occur within five minutes.

increase(zonedaccuracy_errors_total[5m]) > 5

Severity:

warning

Service Down

Monitors application availability using the service health metric.

Severity:

critical

Verified Alert Pipeline

The project was tested end-to-end:

Application Error
      |
      v
Prometheus Metric
      |
      v
Alert Threshold Exceeded
      |
      v
Alert Pending
      |
      v
Alert Firing
      |
      v
Alertmanager

Run Locally

Start the complete stack:

docker compose up -d

Check the containers:

docker compose ps

Services:

Service	Address
Application	localhost:3000
Grafana	localhost:3001
Prometheus	localhost:9090
Alertmanager	localhost:9093

Stop the stack:

docker compose down

Technologies

• Prometheus
• Grafana
• Alertmanager
• Docker
• Docker Compose
• Node.js
• PromQL
• Git
• GitHub

Skills Demonstrated

• Cloud observability
• Application monitoring
• Metrics instrumentation
• PromQL
• Dashboard engineering
• Alert management
• Health monitoring
• Containerization
• SRE fundamentals
• Infrastructure troubleshooting

ZonedAccuracy Cloud Portfolio

This repository is part of the ZonedAccuracy Cloud Portfolio, a collection of hands-on projects demonstrating cloud engineering, DevOps, SRE, security, automation, and cloud architecture skills.

ZonedAccuracy.com