Configuration Guide

Create a detailed configuration guide for this database connection:

const dbConfig = {
    host: process.env.DB_HOST,
    port: process.env.DB_PORT,
    username: process.env.DB_USER,
    password: process.env.DB_PASS,
    database: process.env.DB_NAME,
    ssl: true,
    pool: {
        min: 5,
        max: 20
    }
}

Target audience: DevOps engineers and developers
Documentation format: Markdown with code examples

Focus on:
1.
Environment setup with .env file examples
2.
All configuration options with descriptions
3.
Security best practices for credential management
4.
Performance tuning recommendations
5.
Troubleshooting common connection issues
6.
Scaling considerations
7.
Monitoring and logging setup

Please include:
- A configuration checklist
- Example configurations for different environments (dev, staging, prod)
- Security considerations for each option
- Performance impact of different settings
- Common mistakes to avoid