Azure-arm builder: has anyone met the 'networkSpineId' error?

Packer
1

Hello everyone,

We are attempting to build a VM in Azure using Packer and upload it into an Azure Compute Gallery located in the same subscription as the resource groups that Packer uses to build the VM.

On a totally random manner, we hit (around 60 / 70% of the time) a cryptic error when the Deployment attempts to create a Disk associated to the VM. I already contacted the Microsoft Azure support about that and they could not help, only suggested me to ask the Packer community instead.

Here is the error as returned by Packer :

{
  "status": "Failed",
  "error": {
    "code": "DeploymentFailed",
    "target": "/subscriptions/***/resourceGroups/pkr-Resource-Group-8l3ej74ngj/providers/Microsoft.Resources/deployments/pkrdp8l3ej74ngj",
    "message": "At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/arm-deployment-operations for usage details.",
    "details": [
      {
        "code": "ResourceDeploymentFailure",
        "target": "/subscriptions/***/resourceGroups/pkr-Resource-Group-8l3ej74ngj/providers/Microsoft.Compute/virtualMachines/pkrvm8l3ej74ngj",
        "message": "The resource write operation failed to complete successfully, because it reached terminal provisioning state 'Failed'.",
        "details": [
          {
            "code": "InvalidParameter",
            "message": "The value of parameter networkSpineId is invalid.  Target: '/subscriptions/***/resourceGroups/pkr-Resource-Group-8l3ej74ngj/providers/Microsoft.Compute/disks/pkros8l3ej74ngj'."
          }
        ]
      }
    ]
  }
}

Has anyone already met this issue? I am totally desperate to find some clue on how to mitigate this…

Here is my (redacted) HCL script:

packer {
  required_plugins {
    azure = {
      source  = "github.com/hashicorp/azure"
      version = "~> 2"
    }
    ansible = {
      source  = "github.com/hashicorp/ansible"
      version = "~> 1"
    }
  }
}

variable destination_image_version {
  type = string
}

variable exclude_from_latest {
  type = bool
}

variable shared_image_gallery_destination {
  type = object({
    gallery_name             = string
    image_name               = string
    target_region            = string
    resource_group           = string
    version_end_of_life_date = string
  })
}

variable image {
  type = object({
    offer         = string
    publisher     = string
    sku           = string
    vm_size       = string
    security_type = string
    vtpm          = string
  })
}

variable buildenv {
  type = object({
    virtual_network_name      = string
    build_resource_group_name = string
    virtual_network_resource_group_name = string
    virtual_network_subnet_name = string
  })
}

source "azure-arm" "runner-vm" {
  image_offer          = var.image.offer
  image_publisher      = var.image.publisher
  image_sku            = var.image.sku
  os_type              = "Linux"
  vm_size              = var.image.vm_size
  vtpm_enabled         = var.image.vtpm
  security_type        = var.image.security_type
  encryption_at_host   = "false"

  shared_image_gallery_destination {
    resource_group      = var.shared_image_gallery_destination.resource_group
    gallery_name        = var.shared_image_gallery_destination.gallery_name
    image_name          = var.shared_image_gallery_destination.image_name
    image_version       = var.destination_image_version
    storage_account_type = "Standard_LRS"
    target_region {
      name = var.shared_image_gallery_destination.target_region
    }
  }
  shared_gallery_image_version_exclude_from_latest = var.exclude_from_latest
  shared_gallery_image_version_end_of_life_date = var.shared_image_gallery_destination.version_end_of_life_date
  use_azure_cli_auth    = true
  location = "francecentral"
  virtual_network_name  = var.buildenv.virtual_network_name
  virtual_network_resource_group_name = var.buildenv.virtual_network_resource_group_name
  virtual_network_subnet_name = var.buildenv.virtual_network_subnet_name
}

# https://www.packer.io/docs/templates/hcl_templates/blocks/source
build {
  sources = [
    "source.azure-arm.runner-vm"
  ]

  provisioner "shell" {
    execute_command = "chmod +x {{ .Path }}; {{ .Vars }} sudo -E sh '{{ .Path }}'"
    inline          = ["/usr/sbin/waagent -force -deprovision+user && export HISTSIZE=0 && sync"]
    inline_shebang  = "/bin/sh -x"
  }
}

Thank you in advance.

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