gruntwork-io/terragrunt
Terragrunt
Terragrunt is an infrastructure as code orchestrator and a thin wrapper for Terraform. It serves as a configuration manager designed to reduce code duplication and manage the execution and deployment order of infrastructure across complex cloud architectures.
The tool facilitates scaling cloud deployments across multiple environments, such as development, staging, and production, while keeping configurations consistent. It focuses on organizing large-scale deployments into manageable components to avoid monolithic state files and limit the blast radius of changes.
Its capabilities cover infrastructure orchestration and configuration management, including the handling of dependencies between multiple modules and the management of remote state and input variables.
Features
- Infrastructure Orchestrators - Automates the lifecycle and state management of complex multi-cloud resource stacks using infrastructure-as-code.
- IaC Environment Configuration - Keeps infrastructure configurations dry by utilizing remote state and environment-specific variable inputs.
- Remote State Backends - Automatically generates backend configuration blocks to ensure state files are stored in unique, environment-specific remote paths.
- Cloud Infrastructure Management - Organizes large scale cloud deployments into manageable components to avoid monolithic state files and reduce blast radius.
- Dependency Graph Engines - Calculates the correct execution order of infrastructure modules by mapping their dependencies into directed acyclic graphs.
- Deployment Environment Management - Isolates infrastructure configurations into distinct deployment environments like development, staging, and production.
- Infrastructure as Code - Provides a declarative layer for managing deployment settings and environment state across complex cloud architectures.
- Infrastructure Orchestration - Coordinates the deployment sequence of multiple infrastructure modules by managing their interdependencies.
- Configuration Inheritance - Merges configuration settings from root-level files down through nested directory structures to resolve variable values.
- IaC Configuration Management - Reduces code duplication in Terraform projects by managing remote state and input variables through a thin wrapper.
- CLI Wrappers - Executes Terraform commands by intercepting arguments and injecting dynamically generated configuration files.
- Multi-Environment Configuration Systems - Manages configuration variables across different deployment stages to ensure consistency across multiple environments.
- Template Variable Injection - Automatically replaces placeholders in HCL files with values from remote sources or environment variables.
- Environment Configuration Orchestration - Manages distinct configuration sets and orchestrates dependencies across different clusters and deployment locations.
- Batch Operation Traversers - Walks through folder hierarchies to apply a single operation across multiple infrastructure modules in a batch.
- Workflow Automation - Wrapper for DRY configurations and remote state.
- Workflow Utilities - Wrapper for keeping configurations DRY and managing state.
