Packer: * unknown configuration key: "disk_additional_size"

[LiveAction-SunArc-Op]

Packer v1.2.1
Windows 2012 R2

Unknown Key: disk_additional_size

We are trying to add additional disk in Azure and getting error on disk_additional_size

"builders": [{

    "type": "azure-arm",
    "client_id": "{{user `client_id`}}",
    "client_secret": "{{user `client_secret`}}",
    "resource_group_name": "{{user `resource_group`}}",
    "storage_account": "{{user `storage_account`}}",
    "subscription_id": "{{user `subscription_id`}}",
    "tenant_id": "{{user `tenant_id`}}",

    "capture_container_name": "images",
    "capture_name_prefix": "packer",

    "ssh_username": "{{user `ssh_user`}}",
    "ssh_password": "{{user `ssh_pass`}}",

    "os_type": "Linux",
    "image_publisher": "OpenLogic",
    "image_offer": "CentOS",
    "image_sku": "7.4",
    "image_version": "latest",
    "disk_additional_size": [ 
        100
    ],
    "ssh_pty": "true",

    "location": "West Central US",
    "vm_size": "Standard_DS2_v2"
  }]

[mwhooker]

can you run with PACKER_LOG=1 and paste the output please

[LiveAction-SunArc-Op]

Log.txt

Attached PACKER_LOG=1

[mwhooker]

I'm afraid I'm unable to reproduce this error. Does the following json file validate correctly (packer validate packer.json)?

{
    "builders": [
        {
            "capture_container_name": "images",
            "capture_name_prefix": "packer",
            "client_id": "foo",
            "client_secret": "foo",
            "disk_additional_size": [
                100
            ],
            "image_offer": "CentOS",
            "image_publisher": "OpenLogic",
            "image_sku": "7.4",
            "image_version": "latest",
            "location": "West Central US",
            "os_type": "Linux",
            "resource_group_name": "foo",
            "ssh_password": "foo",
            "ssh_pty": "true",
            "ssh_username": "foo",
            "storage_account": "foo",
            "subscription_id": "foo",
            "tenant_id": "foo",
            "type": "azure-arm",
            "vm_size": "Standard_DS2_v2"
        }
    ]
}

[LiveAction-SunArc-Op]

Packer validate also returns the same unknown key (* unknown configuration key: "disk_additional_size")
I followed the Azure Builder Documentation

[boumenot]

Please upgrade to the latest version of Packer, and try again. The latest version is 1.2.2.

[LiveAction-SunArc-Op]

Yes, After upgrade to latest version it worked!

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