Monitoring Stack: Prometheus, Grafana, and Alertmanager

This repository provides a Docker Compose setup for a monitoring stack including Prometheus, Grafana, and Alertmanager. This stack allows you to monitor and visualize metrics from your applications and infrastructure, and receive alerts based on defined rules.

Prerequisites

Docker Docker Compose

Getting Started

1. Clone the Repository

• git clone https://github.com/jaycynth/monitoring-performance-metrics-in-containerized-infrastructure.git
• cd monitoring-stack

2. Configuration

   • Environment Variables
   • ALERT_EMAIL_TO=your_email@example.com
   • ALERT_EMAIL_FROM=alertmanager@example.com
   • ALERT_SMARTHOST=smtp.example.com:587
   • ALERT_SMTP_USERNAME=your_smtp_user
   • ALERT_SMTP_PASSWORD=your_smtp_password

• Prometheus Configuration Modify prometheus/prometheus.yml to configure Prometheus scrape targets and alerting rules.

• Alertmanager Configuration Modify alertmanager/config.yml to configure Alertmanager routing and receivers. It uses environment variables for sensitive data.

3. Build and Start the Stack Use the provided Makefile to build and start the containers:

• make build # Build Docker images
• make up # Start the containers

4. Access the Services

• Prometheus: http://localhost:9090
• Grafana: http://localhost:3000 (default login: admin / admin)
• Alertmanager: http://localhost:9093

5. Configure Grafana

• Add Data Source: Configure Prometheus as a data source.
• Import Dashboards: You can use predefined dashboards or create custom ones.

6. Viewing Logs To view logs from the containers, use:

• make logs
• make logs-prometheus

7. Stopping and Cleaning Up To stop the containers:

• make down To clean up unused Docker resources:
• make clean

Alerting

Configure alerting rules in prometheus/alert.rules.yml and set up routing in alertmanager/config.yml. Alerts can be sent via email or other notification systems supported by Alertmanager.