Say Goodbye to YAML Hell: Introducing Infra Lang v0.5.1

If you've ever spent 3 hours debugging a missing 2-space indentation in a 1,000-line Kubernetes YAML file or copy-pasting the same service definition between docker-compose.yml, Helm templates, and Terraform HCL — you're not alone.

Today, I’m excited to share Infra Lang v0.5.1, an open-source, human-friendly Infrastructure-as-Code (IaC) compiler that lets you define your architecture once in a clean, typed DSL and compile it to Kubernetes, Docker Compose, Helm Charts, and Terraform HCL.

🌟 Why Infra Lang?
Instead of choosing between raw YAML files or full imperative programming languages (JS/Python SDKs), Infra Lang provides a declarative, type-safe DSL with built-in FinOps cost calculation, live drift detection, and security linting.

Define Once, Deploy Anywhere
Write a single .infra file for local development (docker compose) and production (Kubernetes / Helm / Terraform):

environment "prod" {
service api {
replicas: 5
}
}

service api {
image: "myorg/api:v1.5.0"
port: 8080
cpu: "500m"
memory: "512Mi"
depends_on: [postgres_db]
env {
NODE_ENV: "production"
}
}

database postgres_db {
type: "postgres"
storage: "20Gi"
}

network_policy "api_sec" {
target: "api"
allow_ingress: ["frontend"]
block_all_ingress: true
}

🔥 What's New in v0.5.1?
Here are the flagship features packed into the v0.5.1 release:

⚡ 1. Service DAG Dependencies (depends_on)
Declare architectural dependencies (depends_on: [postgres_db]). Infra Lang automatically cross-compiles them into:

Kubernetes: initContainers (busybox waiting for TCP port availability before starting).
Docker Compose: Native depends_on with service_healthy conditions.
Terraform / Helm: Explicit DAG resource dependency edges.

🔒 2. Cloud Secret Stores (secret_store)
Native integration for HashiCorp Vault, AWS Secrets Manager, GCP Secret Manager, and Kubernetes ExternalSecret CRDs (external-secrets.io/v1beta1).

🛡️ 3. Network Policy Security DSL (network_policy)
Declaratively define traffic isolation rules and default-deny policies. Compiles to Kubernetes NetworkPolicy, isolated Compose networks:, or Terraform aws_security_group.

💰 4. FinOps Cost Estimation & CI/CD Guardrails (infra cost)
Know your cloud bill before deploying!

infra cost app.infra --format markdown

Generates clean Markdown tables for GitHub Pull Request comments and fails CI pipelines if monthly costs exceed budget (infra validate --max-cost 200).

🔎 5. Live Drift Detection & Terraform-Style Preview
infra doctor --check-drift --live — Compare running K8s/Compose state against .infra source files.
infra diff app.infra --live — Visual color-coded preview of planned changes before running infra up.

📦 Getting Started in 30 Seconds
Install via PyPI:

pip install --upgrade infra-lang

Compile to your favorite target:

infra compile app.infra -t kubernetes
infra compile app.infra -t compose
infra cost app.infra

VS Code Extension:
Search for Infra Lang in the VS Code Marketplace for live syntax highlighting, diagnostics, and autocompletion!

🤝 Open Source & Community
Infra Lang is 100% open-source under the MIT License, backed by 2,660+ unit tests, 96.7% test coverage, and 100% strict Mypy type safety.

GitHub Repository: github.com/TuviDev/infra-lang
Documentation: TuviDev.github.io/infra-lang
If you find the project useful, drop a ⭐ on GitHub and let me know your thoughts in the comments below!