Comet

Minimal infrastructure orchestration tool for Terraform/OpenTofu with JavaScript configuration.

Features

• 🚀 JavaScript Configuration - Use a real programming language instead of HCL
• 🔄 Automatic Backend Generation - No more manual backend.tf files
• 🔗 Cross-Stack References - Simple state() function for referencing outputs
• 🔐 Built-in Secrets - Native SOPS integration
• 📦 Multi-Environment - DRY configurations across dev/staging/prod
• ⚡ Minimal & Unopinionated - Thin wrapper, you build your own patterns

It's Just JavaScript! Create helper functions, abstractions, and patterns for your team's needs.

Installation

curl -fsSL https://moonwalker.github.io/comet/install.sh | sh

Prerequisites: OpenTofu or Terraform

See installation guide for details.

Quick Start

1. Create a stack file:

// stacks/dev.stack.js
stack('dev', { 
  project: 'myapp',
  region: 'us-central1' 
})

backend('gcs', {
  bucket: 'my-terraform-state',
  prefix: '{{ .stack }}/{{ .component }}'
})

component('vpc', 'modules/vpc', {
  cidr: '10.0.0.0/16'
})

2. Run commands:

comet plan dev      # Show changes
comet apply dev     # Create infrastructure
comet output dev    # Show outputs
comet destroy dev   # Tear down

Documentation

• Installation Guide
• Best Practices
• DSL Quick Reference
• Cross-Stack References
• It's Just JavaScript!
• Examples

Key Concepts

Stacks - Environments (dev, staging, prod)

stack('production', { settings })

Components - Terraform modules

const vpc = component('vpc', 'modules/vpc', { cidr: '10.0.0.0/16' })

Cross-Stack References - Reference other stacks

cluster_id: '{{ (state "infrastructure" "gke").cluster_id }}'

Secrets - SOPS integration

password: secret('database/password')

Your Own Helpers - It's JavaScript!

function k8sApp(name, config) {
  return component(name, 'modules/k8s-app', {
    replicas: 2,
    ...config
  })
}

See full documentation for details.

License

This project is licensed under the terms specified in the project's license file.