Introduction: This guide explains how to deploy Prometheus monitoring tool in a Docker container.Basic Setup: Run Prometheus in Docker using 'docker run -p 9000:9090 prometheus prom/prometheus:v3.0.0'. Access the Prometheus UI at localhost:9000.Separating the Configuration: Create a prometheus.yml file in the config directory to configure Prometheus.Making the Data Storage Persistent: Create a Docker volume to store metrics data across container restarts.