在Azure DevOps管道中从PowerShell运行Terraform

Question

I'm trying to run Terraform from a PowerShell step in a YAML-configured Azure DevOps Pipeline, but I can't get it to accept my incantation: instead of initializing the state, it prints the usage instructions and exits.

I've tried a number of combinations of with/without quotes for the -backend-config parameter, but nothing seems to work.

If I cut-and-paste the script into a ps1 file locally and run it, everything works as expected.

What is wrong with my incantation of ./terraform.exe init here?

Here's the pipeline configuration, in its entirety:

pool:
  vmImage: 'win1803'

steps:
- powershell: |
    # Download the Terraform executable into the current directory
    [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

    $url = 'https://releases.hashicorp.com/terraform/0.11.8/terraform_0.11.8_windows_amd64.zip'
    $output = "$PSScriptRoot\terraform.zip"

    Write-Host "Downloading from $url to $output"
    $wc = New-Object System.Net.WebClient
    $wc.DownloadFile($url, $output)

    Expand-Archive $output -DestinationPath . -Force

    Get-ChildItem
  displayName: 'Download Terraform executable'
- powershell: |
    # Create a config file with secrets, and initialize Terraform
    "storage_account_name = `"$env:TerraformStateAccountName`"" | Out-File "./terraform-state.secrets.tfvars" -Append
    "access_key = `"$env:TerraformStateAccountKey`"" | Out-File "./terraform-state.secrets.tfvars" -Append
    "container_name = `"$env:TerraformStateContainer`"" | Out-File "./terraform-state.secrets.tfvars" -Append

    ./terraform.exe init -backend-config=./terraform-state.secrets.tfvars -input=false
  env:
    TerraformStateAccountName: $(Terraform.State.StorageAccountName)
    TerraformStateAccountKey: $(Terraform.State.StorageAccountKey)
    TerraformStateContainer: $(Terraform.State.ContainerName)
  displayName: 'Initialize Terraform'

Answer 1

I would remove the blanks surrounding the = sign.

I prefer using environment variables, documented here :

1. ARM_SUBSCRIPTION_ID
2. ARM_CLIENT_ID
3. ARM_CLIENT_SECRET
4. ARM_TENANT_ID
5. ARM_OBJECT_ID
6. ARM_ACCESS_KEY

You can also initialize Terraform variables using environment variables as documented here .