What is TFLint and How to Lint Your Terraform Code

Linting is a process of using static code analysis tools to identify potential errors, bugs, stylistic errors, and suspicious constructs in your code. It helps establish consistent coding styles across projects, making the code more readable and understandable while catching common mistakes that might go unnoticed during manual code reviews. TFLint is a popular open-source linter and static analysis tool designed specifically for Terraform, ensuring quality and consistency of Terraform code by analyzing it for potential issues, errors, or violations of best practices. Other open-source tools like Checkov and Terrascan can also be used for Terraform linting. TFLint installation varies depending on the operating system, but once installed, it can be verified using the command tflint --version. The .tflint.hcl file is a configuration file that allows customization of TFLint's behavior and rules. Plugins for popular cloud providers can be installed to add further functionality and improve code quality in Terraform projects.