Modern DevOps isn't just about moving code; it’s about creating a "clinical" environment where infrastructure is predictable, self-validating, and resilient. For my recent project, SwiftDeploy, I built a CLI tool that doesn't just deploy containers—it diagnoses the host environment and enforces strict policy guardrails before a single container is birthed. Here is the technical deep dive into how I built a self-generating infrastructure stack with Open Policy Agent (OPA) integration. The Design: Infrastructure as Logic Most CI/CD pipelines rely on static YAML files. SwiftDeploy takes a different approach: it treats infrastructure as a dynamic output of a manifest. How it works: The tool uses a manifest.yaml as the "source of truth." When you run ./swiftdeploy init, the script acts as a compiler: It parses service definitions (images, ports, environment variables) using yq. It injects these variables into .template files using envsubst.…