Python CI/CD Rollback Automation Toolkit

Quick-Start Deployment Script with Dry-Run Mode The foundation of any rollback automation system is a deployment script that never executes without validation. Your first step: create a master deployment controller that enforces dry-run execution before any production change touches your infrastructure. Start by creating `deploy.py` in your project root. This script accepts three required parameters: `--environment` (staging or production), `--version` (the target deployment version), and `--mode` (dry-run or execute). The script cannot proceed without explicit mode selection. In dry-run mode, the script performs every operation identically to execute mode except it doesn't apply changes. It validates credentials, checks service connectivity, verifies target version availability, confirms resource quotas, and inspects permission policies. You see exactly what would happen without the risk.