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Gradle Terraform plugin

About

Simple Gradle plugin to wrap Terraform executable as tasks.

By using this plugin there is no need to download and install terraform client. Downloading Terraform executable and unpacking is done by terraformSetup task. All major operating systems such as Linux, Windows, Mac OS are supported.

Requirements

  • JDK 8 or higher and JAVA_HOME properly set to run gradle wrapper

Usage

Steps to run terraform commands by using Gradle

  1. Apply a plugin to a project as described on gradle portal.
  2. Configure a plugin by specifying desired terraform version in build script: 
    terraformPlugin {
    terraformVersion.set("1.9.6")
}
  3. Define a task to run desired terraform client command, for example: 
    tasks {
    register<TerraformTask>("terraformHelp") {
        args("--help")
    }
}
  4. Run terraform command from gradle: 
    # Linux
./gradlew :terraformHelp
# Windows
gradlew.bat :terraformHelp

Additional examples can be found in examples module in this project.

Properties

Plugin behavior can be adjusted by the following properties:

  • terraformVersion - version of Terraform to be downloaded, 1.9.6 by default
  • terraformSetupDir - Terraform installation directory, by default <project_dir>/.gradle/terraformClient-v<terraformVersion>
  • terraformPackage - name of the package to download and save as, by default terraform_${terraformVersion.get()}_${os()}_${arch()}.zip
  • terraformDownloadUrl - can be used to adjust the download URL directly, e.g. https://releases.hashicorp.com/terraform/1.9.6/terraform_1.9.6_linux_arm64.zip, by default it is resolved as https://releases.hashicorp.com/terraform/${terraformVersion.get()}/${terraformPackage.get()}

Sample configuration block can look like:

terraformPlugin {
    terraformVersion = "1.10.0-alpha20240807"
    terraformSetupDir = File("setupDir")
    terraformPackage = "customTerraform.zip"
    terraformDownloadUrl = "https://proxy-terraform/terraform.zip"
}