Pangea

Scalable infrastructure management with Ruby DSL and template-level state isolation

Pangea is an automation-first infrastructure management tool that addresses key Terraform/OpenTofu scalability challenges through template-level state isolation, Ruby DSL compilation, and configuration-driven namespace management.

Pangea compiles Ruby DSL templates to Terraform JSON and manages infrastructure with isolated workspaces per template, enabling infrastructure that scales with team size and complexity.

• Ruby 3.1+ (Ruby 3.3+ recommended)
• Terraform 1.5+ or OpenTofu 1.6+

gem install pangea

git clone https://github.com/drzln/pangea.git
cd pangea
bundle install
bundle exec rake install

Add to your Gemfile:

gem 'pangea'

Then run:

bundle install

Create Ruby files with template declarations:

# infrastructure.rb
template :web_server do
  provider :aws do
    region "us-east-1"
  end

  resource :aws_instance, :web do
    ami "ami-12345678"
    instance_type "t2.micro"

    tags do
      Name "WebServer"
    end
  end
end

template :database do
  provider :aws do
    region "us-east-1"
  end

  resource :aws_rds_instance, :main do
    engine "postgres"
    instance_class "db.t2.micro"
  end
end

Create pangea.yaml in your project root (see pangea.yaml.example for a complete example):

default_namespace: development

namespaces:
  development:
    state:
      type: local
      path: "terraform.tfstate"

  production:
    state:
      type: s3
      bucket: "terraform-state-prod"
      key: "pangea/terraform.tfstate"
      region: "us-east-1"
      dynamodb_table: "terraform-locks"

# Plan all templates in file (uses default namespace)
pangea plan infrastructure.rb

# Plan specific template
pangea plan infrastructure.rb --template web_server

# Plan with specific namespace
pangea plan infrastructure.rb --namespace production

# Show compiled Terraform JSON without running plan
pangea plan infrastructure.rb --show-compiled

# Show compiled JSON for specific template
pangea plan infrastructure.rb --template web_server --show-compiled

# Apply (auto-approves by default)
pangea apply infrastructure.rb --template web_server

# Apply with confirmation prompt (rare)
pangea apply infrastructure.rb --template web_server --no-auto-approve

# Destroy (auto-approves by default)
pangea destroy infrastructure.rb --template web_server

# Destroy with confirmation prompt (rare)
pangea destroy infrastructure.rb --template web_server --no-auto-approve

• Each template gets its own workspace and state file
• More granular than industry standard directory-based approaches
• Reduces blast radius and enables parallel development

• Auto-approval by default for streamlined CI/CD
• Non-interactive operation for automation workflows

• Type-safe resource functions with RBS definitions
• Compile-time validation using dry-struct
• Access to full Ruby ecosystem for complex logic

• Configuration-driven namespace management
• Support for local, S3, and custom backends
• Automatic state key generation prevents conflicts

• Templates are compiled to separate workspaces
• Each workspace manages its own Terraform state
• Namespaces configure shared backend settings
• No init command needed - initialization is automatic

• Reduced File Sprawl: Multiple templates in single files vs scattered directories
• Automatic Backend Management: No manual backend configuration per component
• Ruby DSL Power: Better abstraction than HCL for complex logic
• Code Reuse: Shared helper methods and logic within files

• Configuration Simplicity: Single YAML file vs multiple terragrunt.hcl files
• Template Isolation: Built-in template-level isolation vs manual workspace management
• Ruby Ecosystem: Access to full Ruby library ecosystem
• No DRY Complexity: Templates handle repetition naturally

• True State Isolation: Completely separate state files vs shared backend
• Security Boundaries: No cross-template state access
• Template Granularity: Template-specific configurations
• Operational Clarity: Template names match infrastructure components

See the examples/ directory for complete infrastructure templates:

• Simple Web Server - Basic single-template example
• Scalable Infrastructure - Multi-template web application
• Advanced ML Infrastructure - Complex healthcare ML platform

We welcome contributions! Please see CONTRIBUTING.md for details on:

• Development setup
• Running tests
• Submitting pull requests
• Code style guidelines

• GitHub Discussions - Questions and community
• Issues - Bug reports and feature requests
• Security Policy - Reporting security vulnerabilities

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

• Built on terraform-synthesizer for Ruby-to-Terraform compilation
• Inspired by the need for better infrastructure-as-code scalability
• Thanks to all contributors