Plugin crash for Nutanix Provider due to integer out of range error

[colcove]

Nutanix Cluster Information

• Nutanix Cluster (Prism Element / AOS) - 6.5.1.8
• Nutanix Prism Central - pc.2022.6.0.1

Terraform Version

v1.4.6

Affected Resource(s)

• nutanix_virtual_machine

Terraform Configuration Files

terraform {
  required_providers {
    nutanix = {
      source  = "nutanix/nutanix"
      version = "1.8.1"
    }
  }
}

data "nutanix_cluster" "cluster" {
  name = var.cluster_name
}
data "nutanix_subnet" "subnet" {
  subnet_name = var.subnet_name
}

provider "nutanix" {
  username     = var.user
  password     = var.password
  endpoint     = var.endpoint
  insecure     = true
  wait_timeout = 60
}

resource "nutanix_image" "image" {
  name        = "Arch Linux"
  description = "Arch-Linux-x86_64-basic-20210401.18564"
  source_uri  = "https://mirror.pkgbuild.com/images/latest/Arch-Linux-x86_64-basic-20230415.143207.qcow2"
}

resource "nutanix_virtual_machine" "vm" {
  name                 = "MyVM from the Terraform Nutanix Provider"
  cluster_uuid         = data.nutanix_cluster.cluster.id
  num_vcpus_per_socket = "2"
  num_sockets          = "1"
  memory_size_mib      = 1024

  disk_list {
    data_source_reference = {
      kind = "image"
      uuid = nutanix_image.image.id
    }
  }

  disk_list {
    disk_size_bytes = 10 * 1024 * 1024 * 1024
    device_properties {
      device_type = "DISK"
      disk_address = {
        "adapter_type" = "SCSI"
        "device_index" = "1"
      }
    }
  }
  nic_list {
    subnet_uuid = data.nutanix_subnet.subnet.id
  }
}

Debug Output

https://gist.github.com/colcove/8d01a5a61c2a7425b14c2d4ef151cc72

Panic Output

Expected Behavior

terraform plan should have showed which resources are to be created, in this case 2 resources (1 image, 1 vm).

Actual Behavior

terraform plan failed and the plugin crashed, due to a value out of range error

Steps to Reproduce

1. terraform plan

Important Factors

Environment: Using Windows 11, Nutanix Provider 1.8.1
​Workaround found:
The issue is with the "disk_size_bytes" variable. I changed this line to be - disk_size_mib = 10 * 1024 and then ran terraform plan again. This time it was successful.

References

[Haroon-Dweikat-Ntx]

Hi @colcove

This isn't a provider issue, it's related to the Terraform SDK. It often happens when users accidentally install the 32-bit version of Terraform, which can still run on 64-bit systems.

Integer Limitations:

On 32-bit systems, the maximum signed integer is 2,147,483,647 (2³¹ - 1). If you use a value larger than this, like 10,737,418,240 (10¹⁰, ~10 GB), it exceeds the limit. This triggers a strconv.ParseInt error, throwing "value out of range."

The 64-bit version, however, can handle integers up to 9,223,372,036,854,775,807 (2⁶³ - 1), which is why the error doesn't appear when using it.

Solution:

Install the 64-bit version of Terraform to resolve this issue.

For example, if you check your Terraform version and see:

Terraform v1.9.5
on windows_386

You're using the 32-bit version. After downloading the 64-bit version, the output should look like this:

Terraform v1.9.5
on windows_amd64

This will fix the integer limit problem.