Terraform-provider-azurerm: * provider.azurerm: plugin exited before we could connect

[LarsLarsLars]

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Terraform (and AzureRM Provider) Version

Terraform v0.11.10

• provider.azurerm v1.19.0

Affected Resource(s)

Terraform Configuration Files

provider "azurerm" {
   subscription_id = "..."
   client_id       = "..." 
   client_secret   = "..."
   tenant_id       = "..."
}
resource "azurerm_resource_group" "myterraformgroup" {
    name     = "myResourceGroup"
    location = "eastus"

    tags {
        environment = "Terraform Demo"
    }
}

Debug Output

https://gist.github.com/LarsLarsLars/d2799cb2761c8a9452c66cd3912b552f

Panic Output

Expected Behavior

terraform plan should generate a preview of the changes to apply

Actual Behavior

Error: Error asking for user input: 1 error(s) occurred:

• provider.azurerm: plugin exited before we could connect
  

Steps to Reproduce

1. terraform init
2. terraform plan

Important Factoids

1. logging in with the same credentials with az login --service-principal -u -p --tenant works well
2. terraform init completes with no errors
3. the service account has a contributor role on the subscription
4. the service account has Windows Azure Service Management API and Windows Azure Active Directory permissions

References

• #0000

[tombuildsstuff]

hi @LarsLarsLars

Thanks for opening this issue :)

Terraform (Core) and it's Providers run in separate processes that communicate via RPC - as such both processes require permission to bind ports. Taking a look into the error you're seeing:

2018-11-28T14:22:30.399-0500 [ERROR] plugin.terraform-provider-azurerm_v1.19.0_x4.exe: plugin init error: timestamp=2018-11-28T14:22:30.374-0500 error="Couldn't bind plugin TCP listener"

It appears that whilst Terraform can open/bind a port - the AzureRM plugin can't, as such Terraform's unable to interact with the AzureRM plugin which is why you're seeing this error.

Out of interest are you running in a locked-down environment where binaries need to be approved prior to running? If so, the AzureRM provider will also need to be added to this list.

Thanks!

[LarsLarsLars]

Thanks for your fast answer Tom!

Allowing the AzureRM plugin ( ...\plugins\windows_amd64\terraform-provider-azurerm_v1.19.0_x4.exe) in the firewall solved it.

[tombuildsstuff]

Glad to hear this is now working for you @LarsLarsLars :)

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