This action sets up Terraform CLI in your GitHub Actions workflow by:

• Downloading a specific version of Terraform CLI and adding it to the PATH.
• Configuring the Terraform CLI configuration file with a Terraform Cloud/Enterprise hostname and API token.
• Optionally installing a wrapper to wrap subsequent calls of the terraform binary and expose its STDOUT, STDERR, and exit code as outputs named stdout, stderr, and exitcode respectively.

This action can be run on ubuntu-latest, windows-latest, and macos-latest GitHub Actions runners. When running on windows-latest the shell should be set to Bash.

The default configuration installs the latest version of Terraform CLI and installs the wrapper to wrap subsequent calls to the terraform binary.

steps:
- uses: hashicorp/setup-terraform@v1 

A specific version of Terraform CLI can be installed.

steps:
- uses: hashicorp/setup-terraform@v1 
  with:
    terraform_version: 0.12.24

Credentials for Terraform Cloud (app.terraform.io) can be configured.

steps:
- uses: hashicorp/setup-terraform@v1 
  with:
    cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}

Credentials for Terraform Enterprise can be configured.

steps:
- uses: hashicorp/setup-terraform@v1 
  with:
    cli_config_credentials_hostname: 'terraform.example.com'
    cli_config_credentials_token: ${{ secrets.TF_API_TOKEN }}

The wrapper installation can be skipped.

steps:
- uses: hashicorp/setup-terraform@v1 
  with:
    terraform_wrapper: false

Subsequent steps can access outputs when the wrapper is installed.

steps:
- uses: hashicorp/setup-terraform@v1

- run: terraform init

- id: plan
  run: terraform plan -no-color

- run: echo ${{ steps.plan.outputs.stdout }}
- run: echo ${{ steps.plan.outputs.stderr }}
- run: echo ${{ steps.plan.outputs.exitcode }}

The outputs can be used in subsequent steps to comment on the pull request:

steps:
- uses: hashicorp/setup-terraform@v1

- run: terraform init

- id: plan
  run: terraform plan -no-color

- uses: actions/github-script@0.9.0
  if: github.event_name == 'pull_request'
  env:
    STDOUT: "```${{ steps.plan.outputs.stdout }}```"
  with:
    github-token: ${{ secrets.GITHUB_TOKEN }}
    script: |
      github.issues.createComment({
        issue_number: context.issue.number,
        owner: context.repo.owner,
        repo: context.repo.repo,
        body: process.env.STDOUT
      })

The following inputs are supported.

• cli_config_credentials_hostname - (optional) The hostname of a Terraform Cloud/Enterprise instance to place within the credentials block of the Terraform CLI configuration file.

• cli_config_credentials_token - (optional) The API token for a Terraform Cloud/Enterprise instance to place within the credentials block of the Terraform CLI configuration file.

• terraform_version - (optional) The version of Terraform CLI to install. A value of latest will install the latest version of Terraform CLI. Defaults to latest.

• terraform_wrapper - (optional) Whether or not to install a wrapper to wrap subsequent calls of the terraform binary and expose its STDOUT, STDERR, and exit code as outputs named stdout, stderr, and exitcode respectively. Defaults to true.

This action does not configure any outputs directly. However, when the terraform_wrapper input is set to true, the following outputs will be available for subsequent steps that call the terraform binary.

• stdout - The STDOUT stream of the call to the terraform binary.

• stderr - The STDERR stream of the call to the terraform binary.

• exitcode - The exit code of the call to the terraform binary..

Mozilla Public License v2.0

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