jeffbanks/config-lint

Command line tool to validate configuration files

🔍 config-lint 🔎

A command line tool to validate configuration files using rules specified in YAML. The configuration files can be one of several formats: Terraform, JSON, YAML, with support for Kubernetes. There are built-in rules provided for Terraform, and custom files can be used for other formats.

📓 Documentation

👷 Contributing

🐛 Issues & Bugs

Blog Posts

✏️ config-lint: Up and Running

✏️ Development Acceleration Through VS Code Remote Containers

Quick Start

Install the latest version of config-lint on macOS using Homebrew:

brew tap stelligent/tap
brew install config-lint

Or manually on Linux:

curl -L https://github.com/stelligent/config-lint/releases/latest/download/config-lint_Linux_x86_64.tar.gz | tar xz -C /usr/local/bin config-lint
chmod +rx /usr/local/bin/config-lint

Run the built-in ruleset against your Terraform files. For instance if you want to run config-lint against our example files:

config-lint -terraform example-files/config

You will see failure and warning violations in the output like this:

[
  {
    "AssertionMessage": "viewer_certificate[].cloudfront_default_certificate | [0] should be 'false', not ''",
    "Category": "resource",
    "CreatedAt": "2020-04-15T19:24:33Z",
    "Filename": "example-files/config/cloudfront.tf",
    "LineNumber": 10,
    "ResourceID": "s3_distribution",
    "ResourceType": "aws_cloudfront_distribution",
    "RuleID": "CLOUDFRONT_MINIMUM_SSL",
    "RuleMessage": "CloudFront Distribution must use TLS 1.2",
    "Status": "FAILURE"
  },
  ...

You can find more install options in our installation guide.