Machine Provisioning Script

Overview

This Python script automates the setup and validation of machine configurations, ensuring they meet predefined requirements. It also provides an option to install Nginx on the machines.

Features

• Accepts user input to define new machines
• Validates machine configurations using JSON schema
• Prevents duplicate IP addresses
• Saves machine configurations to a JSON file
• Runs a Bash script to install Nginx (optional)
• Logs all activities for troubleshooting

Prerequisites

• Python 3.13.2
• Required Python packages:
  • json
  • logging
  • subprocess
  • jsonschema
• A valid configs/instances.json file (if not present, create an empty JSON array [])
• A Bash script Scripts/nginx_installtion.sh for Nginx installation

Installation

1. Create and activate a virtual environment:

   python -m venv venv
   source venv/bin/activate  # On macOS/Linux
   venv\Scripts\activate  # On Windows

2. Install dependencies from requirements.txt:

   pip install -r requirements.txt

Usage

1. Run the script:

   python infra_simulator.py

2. Enter machine details when prompted, including:
   • Machine name
   • IP address
   • Operating system (e.g., Ubuntu, CentOS)
   • CPU configuration (e.g., 2vCPU)
   • RAM size (GB)
3. The script will validate the configuration and save it if valid.
4. Optionally, install Nginx by selecting "yes" when prompted.
5. Logs are stored in logs/provisioning.log for debugging.

Troubleshooting

• If a validation error occurs, check logs/provisioning.log.
• If the script cannot execute the Bash script, ensure it has execution permissions:

  chmod +x Scripts/nginx_installtion.sh