azure_virtual_machine_disk resource

Use the azure_virtual_machine_disk InSpec audit resource to test the properties and configuration of an Azure disk.

Azure REST API version, endpoint, and HTTP client parameters

This resource interacts with API versions supported by the resource provider. You can specify the api_version as a resource parameter to use a specific version of the Azure REST API. If you don’t specify an API version, this resource uses the latest version available. For more information about API versioning, see the azure_generic_resource.

By default, this resource uses the azure_cloud global endpoint and default HTTP client settings. You can override these settings if you need to connect to a different Azure environment (such as Azure Government or Azure China). For more information about configuration options, see the resource pack README.

Syntax

resource_group and name, or the resource_id are required parameters.

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'EXAMPLE_DISK') do
  it { should exist }
end

describe azure_virtual_machine_disk(resource_id: '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/disks/{diskName}') do
  it { should exist }
end

Parameters

resource_group

Azure resource group where the targeted resource resides.

name

Name of the disk to test.

Either one of the parameter sets can be provided for a valid query:

• resource_id
• resource_group and name

Properties

encryption_enabled<superscript>*</superscript>

Indicates whether the properties.EncryptionSettingsCollection.enabled is true or false. Note that this will return nil unless the encryption status is defined on the resource explicitly.

rest_encryption_type

The type of key used to encrypt the data of the disk.

sku

The SKU (pricing tier) of the disk.

managedBy

A relative URI containing the ID of the VM that has the disk attached.

properties.diskSizeBytes

The size of the disk in bytes.

* The disk can still be encrypted at rest with a platform key, even though the encryption_enabled is nil. See the Azure Virtual Machines Server-side encryption documentation for more details on disk encryption.

For properties applicable to all resources, such as type, name, location, id, and properties, refer to azure_generic_resource.

Also, see the Azure documentation for other available properties. You can access any attribute in the response with the key names separated by dots (.). For example, properties.<attribute>.

Examples

Test if a disk is referenced with a valid name:

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  it { should exist }
end

Test if a disk is referenced with an invalid name:

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'i-dont-exist') do
  it { should_not exist }
end

Test the VM that the disk is attached:

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  its('managedBy') { should cmp '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroup}/providers/Microsoft.Compute/virtualMachines/{vmName}' }
end

Test the key type used to encrypt the data at rest:

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  its('rest_encryption_type') { should cmp 'EncryptionAtRestWithPlatformKey' }
end

Test a disk’s size in bytes:

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  its('properties.diskSizeBytes') { should cmp 136367308800 }
end

Matchers

This resource has the following special matchers.

attached

Test if a disk is attached to a virtual machine.

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  it { should be_attached }
end

exists

# If we expect a resource to always exist.

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  it { should exist }
end

not_exists

# If we expect a resource to never exist.

describe azure_virtual_machine_disk(resource_group: 'RESOURCE_GROUP', name: 'OS_DISK') do
  it { should_not exist }
end

Azure permissions

Your Service Principal must be set up with at least a contributor role on the subscription you wish to test.