SwiftDeploy: How I Built a CLI That Writes Its Own Infrastructure, Gates Deployments with OPA, and Audits Everything

HNG Internship 14—DevOps Track, Stage 4A & 4B A deep dive into building a declarative deployment tool from scratch—no Terraform, no Kubernetes, just bash, Python, Docker, and Open Policy Agent. Introduction Most DevOps tasks ask you to configure infrastructure manually. Stage 4 of the HNG DevOps track asked something harder: build the tool that does it for you. The result is swiftdeploy — a CLI tool that reads a single manifest.yaml file and automatically generates all configuration files, d