Terraform init: failed to get existing workspaces

[Alexander Bellhäuser]

I'm running into an error Failed to get existing workspaces: http: read on closed response body running terraform init @ GitHub Actions.

This workflow configuration

  - name: Terraform init
    env:
      TF_VERSION: 0.12.13
      TF_ACTION_WORKING_DIR: ./path/to/working/dir
    uses: hashicorp/terraform-github-actions@master
    with:
      tf_actions_version: ${{ env.TF_VERSION }}
      tf_actions_subcommand: 'init'
      tf_actions_working_dir: ${{ env.TF_ACTION_WORKING_DIR }}

produces

> Run hashicorp/terraform-github-actions@master
/usr/bin/docker run ...
Downloading Terraform v0.12.13
Successfully downloaded Terraform v0.12.13
Unzipping Terraform v0.12.13
Successfully unzipped Terraform v0.12.13
init: info: initializing Terraform configuration in ./path/to/working/dir
init: error: failed to initialize Terraform configuration in ./path/to/working/dir
Initializing modules...
- # ... 7 modules init without exception ...

Initializing the backend...

Successfully configured the backend "azurerm"! Terraform will automatically
use this backend unless the backend configuration changes.

Error: Failed to get existing workspaces: http: read on closed response body

init: info: creating JSON
init: info: commenting on the pull request
##[error]Docker run failed with exit code 1

Running terraform init on my local machine at a fresh copy of same repo leads to:

$ cd ./path/to/working/dir && terraform init
Initializing modules...
- # ... same 7 modules as above ...

Initializing the backend...

Successfully configured the backend "azurerm"! Terraform will automatically
use this backend unless the backend configuration changes.

Initializing provider plugins...
- Checking for available provider plugins...
- Downloading plugin for provider "github" (hashicorp/github) 2.2.1...

The following providers do not have any version constraints # ... and so on ...

Terraform has been successfully initialized!

Do you have any idea why my pipeline is failing? 🤔

[Matthew Sanabria]

Based on this information, I do not know why your init is failing.

Try this.

  - name: Terraform init
    env:
      TF_LOG: TRACE
    uses: hashicorp/terraform-github-actions@master
    with:
      tf_actions_version: 0.12.13
      tf_actions_subcommand: 'init'
      tf_actions_working_dir: 'path/to/dir'

Also how are you authenticating to Azure? I'm assuming locally you might be using something like az login?

[Alexander Bellhäuser]

Okay, this is somewhere between strange and embarrassing. It was failing reproduceable when I filed this issue. Now it is working. I'm super sorry stealing your precious time :/

[Matthew Sanabria]

It's quite alright! Glad it's working!