Virtual Machine Scale Sets - Reimage

Service:

Compute

API Version:

2024-07-01

Reimages (upgrade the operating system) one or more virtual machines in a VM scale set which don't have a ephemeral OS disk, for virtual machines who have a ephemeral OS disk the virtual machine is reset to initial state.

POST https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/reimage?api-version=2024-07-01

URI Parameters

Name	In	Required	Type	Description
resourceGroupName	path	True	string	The name of the resource group.
subscriptionId	path	True	string	Subscription credentials which uniquely identify Microsoft Azure subscription. The subscription ID forms part of the URI for every service call.
vmScaleSetName	path	True	string	The name of the VM scale set.
api-version	query	True	string	Client Api Version.

Request Body

Name	Type	Description
exactVersion	string	Specifies in decimal number, the version the OS disk should be reimaged to. If exact version is not provided, the OS disk is reimaged to the existing version of OS Disk.
forceUpdateOSDiskForEphemeral	boolean	Parameter to force update ephemeral OS disk for a virtual machine scale set VM
instanceIds	string[]	The virtual machine scale set instance ids. Omitting the virtual machine scale set instance ids will result in the operation being performed on all virtual machines in the virtual machine scale set.
osProfile	OSProfileProvisioningData	Specifies information required for reimaging the non-ephemeral OS disk.
tempDisk	boolean	Specifies whether to reimage temp disk. Default value: false. Note: This temp disk reimage parameter is only supported for VM/VMSS with Ephemeral OS disk.

Responses

Name	Type	Description
200 OK		OK
202 Accepted		Accepted
Other Status Codes	CloudError	Error response describing why the operation failed.

Security

azure_auth

Azure Active Directory OAuth2 Flow

Type: oauth2
Flow: implicit
Authorization URL: https://login.microsoftonline.com/common/oauth2/authorize

Scopes

Name	Description
user_impersonation	impersonate your user account

Examples

VirtualMachineScaleSet_Reimage_MaximumSet_Gen

VirtualMachineScaleSet_Reimage_MinimumSet_Gen

VirtualMachineScaleSet_Reimage_MaximumSet_Gen

Sample request

HTTP

POST https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/rgcompute/providers/Microsoft.Compute/virtualMachineScaleSets/aaaaaaaaaaaaaaaaaaaaaaaaaa/reimage?api-version=2024-07-01

{
  "instanceIds": [
    "aaaaaaaaaa"
  ],
  "forceUpdateOSDiskForEphemeral": true,
  "tempDisk": true
}

Java

import com.azure.resourcemanager.compute.models.VirtualMachineScaleSetReimageParameters;
import java.util.Arrays;

/**
 * Samples for VirtualMachineScaleSets Reimage.
 */
public final class Main {
    /*
     * x-ms-original-file:
     * specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/
     * virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MaximumSet_Gen.json
     */
    /**
     * Sample code: VirtualMachineScaleSet_Reimage_MaximumSet_Gen.
     * 
     * @param azure The entry point for accessing resource management APIs in Azure.
     */
    public static void
        virtualMachineScaleSetReimageMaximumSetGen(com.azure.resourcemanager.AzureResourceManager azure) {
        azure.virtualMachines().manager().serviceClient().getVirtualMachineScaleSets().reimage("rgcompute",
            "aaaaaaaaaaaaaaaaaaaaaaaaaa", new VirtualMachineScaleSetReimageParameters().withTempDisk(true)
                .withForceUpdateOSDiskForEphemeral(true).withInstanceIds(Arrays.asList("aaaaaaaaaa")),
            com.azure.core.util.Context.NONE);
    }
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Python

from azure.identity import DefaultAzureCredential

from azure.mgmt.compute import ComputeManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-compute
# USAGE
    python virtual_machine_scale_set_reimage_maximum_set_gen.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = ComputeManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="{subscription-id}",
    )

    client.virtual_machine_scale_sets.begin_reimage(
        resource_group_name="rgcompute",
        vm_scale_set_name="aaaaaaaaaaaaaaaaaaaaaaaaaa",
    ).result()


# x-ms-original-file: specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MaximumSet_Gen.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Go

package armcompute_test

import (
	"context"
	"log"

	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
	"github.com/Azure/azure-sdk-for-go/sdk/azidentity"
	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/compute/armcompute/v6"
)

// Generated from example definition: https://github.com/Azure/azure-rest-api-specs/blob/c7b98b36e4023331545051284d8500adf98f02fe/specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MaximumSet_Gen.json
func ExampleVirtualMachineScaleSetsClient_BeginReimage_virtualMachineScaleSetReimageMaximumSetGen() {
	cred, err := azidentity.NewDefaultAzureCredential(nil)
	if err != nil {
		log.Fatalf("failed to obtain a credential: %v", err)
	}
	ctx := context.Background()
	clientFactory, err := armcompute.NewClientFactory("<subscription-id>", cred, nil)
	if err != nil {
		log.Fatalf("failed to create client: %v", err)
	}
	poller, err := clientFactory.NewVirtualMachineScaleSetsClient().BeginReimage(ctx, "rgcompute", "aaaaaaaaaaaaaaaaaaaaaaaaaa", &armcompute.VirtualMachineScaleSetsClientBeginReimageOptions{VMScaleSetReimageInput: &armcompute.VirtualMachineScaleSetReimageParameters{
		TempDisk:                      to.Ptr(true),
		ForceUpdateOSDiskForEphemeral: to.Ptr(true),
		InstanceIDs: []*string{
			to.Ptr("aaaaaaaaaa")},
	},
	})
	if err != nil {
		log.Fatalf("failed to finish the request: %v", err)
	}
	_, err = poller.PollUntilDone(ctx, nil)
	if err != nil {
		log.Fatalf("failed to pull the result: %v", err)
	}
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

JavaScript

const { ComputeManagementClient } = require("@azure/arm-compute");
const { DefaultAzureCredential } = require("@azure/identity");

/**
 * This sample demonstrates how to Reimages (upgrade the operating system) one or more virtual machines in a VM scale set which don't have a ephemeral OS disk, for virtual machines who have a ephemeral OS disk the virtual machine is reset to initial state.
 *
 * @summary Reimages (upgrade the operating system) one or more virtual machines in a VM scale set which don't have a ephemeral OS disk, for virtual machines who have a ephemeral OS disk the virtual machine is reset to initial state.
 * x-ms-original-file: specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MaximumSet_Gen.json
 */
async function virtualMachineScaleSetReimageMaximumSetGen() {
  const subscriptionId = process.env["COMPUTE_SUBSCRIPTION_ID"] || "{subscription-id}";
  const resourceGroupName = process.env["COMPUTE_RESOURCE_GROUP"] || "rgcompute";
  const vmScaleSetName = "aaaaaaaaaaaaaaaaaaaaaaaaaa";
  const vmScaleSetReimageInput = {
    forceUpdateOSDiskForEphemeral: true,
    instanceIds: ["aaaaaaaaaa"],
    tempDisk: true,
  };
  const options = {
    vmScaleSetReimageInput,
  };
  const credential = new DefaultAzureCredential();
  const client = new ComputeManagementClient(credential, subscriptionId);
  const result = await client.virtualMachineScaleSets.beginReimageAndWait(
    resourceGroupName,
    vmScaleSetName,
    options,
  );
  console.log(result);
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

dotnet

using Azure;
using Azure.ResourceManager;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager.Compute.Models;
using Azure.ResourceManager.Models;
using Azure.ResourceManager.Resources;
using Azure.ResourceManager.Resources.Models;
using Azure.ResourceManager.Compute;

// Generated from example definition: specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MaximumSet_Gen.json
// this example is just showing the usage of "VirtualMachineScaleSets_Reimage" operation, for the dependent resources, they will have to be created separately.

// get your azure access token, for more details of how Azure SDK get your access token, please refer to https://learn.microsoft.com/en-us/dotnet/azure/sdk/authentication?tabs=command-line
TokenCredential cred = new DefaultAzureCredential();
// authenticate your client
ArmClient client = new ArmClient(cred);

// this example assumes you already have this VirtualMachineScaleSetResource created on azure
// for more information of creating VirtualMachineScaleSetResource, please refer to the document of VirtualMachineScaleSetResource
string subscriptionId = "{subscription-id}";
string resourceGroupName = "rgcompute";
string virtualMachineScaleSetName = "aaaaaaaaaaaaaaaaaaaaaaaaaa";
ResourceIdentifier virtualMachineScaleSetResourceId = VirtualMachineScaleSetResource.CreateResourceIdentifier(subscriptionId, resourceGroupName, virtualMachineScaleSetName);
VirtualMachineScaleSetResource virtualMachineScaleSet = client.GetVirtualMachineScaleSetResource(virtualMachineScaleSetResourceId);

// invoke the operation
VirtualMachineScaleSetReimageContent content = new VirtualMachineScaleSetReimageContent()
{
    InstanceIds =
    {
    "aaaaaaaaaa"
    },
    ForceUpdateOSDiskForEphemeral = true,
    TempDisk = true,
};
await virtualMachineScaleSet.ReimageAsync(WaitUntil.Completed, content: content);

Console.WriteLine($"Succeeded");

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample response

Status code:

200

Status code:

202

location: https://foo.com/operationstatus

VirtualMachineScaleSet_Reimage_MinimumSet_Gen

Sample request

HTTP

POST https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/rgcompute/providers/Microsoft.Compute/virtualMachineScaleSets/aaaaaaaaaaaaaaaaaaaaaaaaaaaa/reimage?api-version=2024-07-01

Java

/**
 * Samples for VirtualMachineScaleSets Reimage.
 */
public final class Main {
    /*
     * x-ms-original-file:
     * specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/
     * virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MinimumSet_Gen.json
     */
    /**
     * Sample code: VirtualMachineScaleSet_Reimage_MinimumSet_Gen.
     * 
     * @param azure The entry point for accessing resource management APIs in Azure.
     */
    public static void
        virtualMachineScaleSetReimageMinimumSetGen(com.azure.resourcemanager.AzureResourceManager azure) {
        azure.virtualMachines().manager().serviceClient().getVirtualMachineScaleSets().reimage("rgcompute",
            "aaaaaaaaaaaaaaaaaaaaaaaaaaaa", null, com.azure.core.util.Context.NONE);
    }
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Python

from azure.identity import DefaultAzureCredential

from azure.mgmt.compute import ComputeManagementClient

"""
# PREREQUISITES
    pip install azure-identity
    pip install azure-mgmt-compute
# USAGE
    python virtual_machine_scale_set_reimage_minimum_set_gen.py

    Before run the sample, please set the values of the client ID, tenant ID and client secret
    of the AAD application as environment variables: AZURE_CLIENT_ID, AZURE_TENANT_ID,
    AZURE_CLIENT_SECRET. For more info about how to get the value, please see:
    https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal
"""


def main():
    client = ComputeManagementClient(
        credential=DefaultAzureCredential(),
        subscription_id="{subscription-id}",
    )

    client.virtual_machine_scale_sets.begin_reimage(
        resource_group_name="rgcompute",
        vm_scale_set_name="aaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    ).result()


# x-ms-original-file: specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MinimumSet_Gen.json
if __name__ == "__main__":
    main()

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Go

package armcompute_test

import (
	"context"
	"log"

	"github.com/Azure/azure-sdk-for-go/sdk/azidentity"
	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/compute/armcompute/v6"
)

// Generated from example definition: https://github.com/Azure/azure-rest-api-specs/blob/c7b98b36e4023331545051284d8500adf98f02fe/specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MinimumSet_Gen.json
func ExampleVirtualMachineScaleSetsClient_BeginReimage_virtualMachineScaleSetReimageMinimumSetGen() {
	cred, err := azidentity.NewDefaultAzureCredential(nil)
	if err != nil {
		log.Fatalf("failed to obtain a credential: %v", err)
	}
	ctx := context.Background()
	clientFactory, err := armcompute.NewClientFactory("<subscription-id>", cred, nil)
	if err != nil {
		log.Fatalf("failed to create client: %v", err)
	}
	poller, err := clientFactory.NewVirtualMachineScaleSetsClient().BeginReimage(ctx, "rgcompute", "aaaaaaaaaaaaaaaaaaaaaaaaaaaa", &armcompute.VirtualMachineScaleSetsClientBeginReimageOptions{VMScaleSetReimageInput: nil})
	if err != nil {
		log.Fatalf("failed to finish the request: %v", err)
	}
	_, err = poller.PollUntilDone(ctx, nil)
	if err != nil {
		log.Fatalf("failed to pull the result: %v", err)
	}
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

JavaScript

const { ComputeManagementClient } = require("@azure/arm-compute");
const { DefaultAzureCredential } = require("@azure/identity");

/**
 * This sample demonstrates how to Reimages (upgrade the operating system) one or more virtual machines in a VM scale set which don't have a ephemeral OS disk, for virtual machines who have a ephemeral OS disk the virtual machine is reset to initial state.
 *
 * @summary Reimages (upgrade the operating system) one or more virtual machines in a VM scale set which don't have a ephemeral OS disk, for virtual machines who have a ephemeral OS disk the virtual machine is reset to initial state.
 * x-ms-original-file: specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MinimumSet_Gen.json
 */
async function virtualMachineScaleSetReimageMinimumSetGen() {
  const subscriptionId = process.env["COMPUTE_SUBSCRIPTION_ID"] || "{subscription-id}";
  const resourceGroupName = process.env["COMPUTE_RESOURCE_GROUP"] || "rgcompute";
  const vmScaleSetName = "aaaaaaaaaaaaaaaaaaaaaaaaaaaa";
  const credential = new DefaultAzureCredential();
  const client = new ComputeManagementClient(credential, subscriptionId);
  const result = await client.virtualMachineScaleSets.beginReimageAndWait(
    resourceGroupName,
    vmScaleSetName,
  );
  console.log(result);
}

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

dotnet

using Azure;
using Azure.ResourceManager;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Azure.Core;
using Azure.Identity;
using Azure.ResourceManager.Compute.Models;
using Azure.ResourceManager.Models;
using Azure.ResourceManager.Resources;
using Azure.ResourceManager.Resources.Models;
using Azure.ResourceManager.Compute;

// Generated from example definition: specification/compute/resource-manager/Microsoft.Compute/ComputeRP/stable/2024-07-01/examples/virtualMachineScaleSetExamples/VirtualMachineScaleSet_Reimage_MinimumSet_Gen.json
// this example is just showing the usage of "VirtualMachineScaleSets_Reimage" operation, for the dependent resources, they will have to be created separately.

// get your azure access token, for more details of how Azure SDK get your access token, please refer to https://learn.microsoft.com/en-us/dotnet/azure/sdk/authentication?tabs=command-line
TokenCredential cred = new DefaultAzureCredential();
// authenticate your client
ArmClient client = new ArmClient(cred);

// this example assumes you already have this VirtualMachineScaleSetResource created on azure
// for more information of creating VirtualMachineScaleSetResource, please refer to the document of VirtualMachineScaleSetResource
string subscriptionId = "{subscription-id}";
string resourceGroupName = "rgcompute";
string virtualMachineScaleSetName = "aaaaaaaaaaaaaaaaaaaaaaaaaaaa";
ResourceIdentifier virtualMachineScaleSetResourceId = VirtualMachineScaleSetResource.CreateResourceIdentifier(subscriptionId, resourceGroupName, virtualMachineScaleSetName);
VirtualMachineScaleSetResource virtualMachineScaleSet = client.GetVirtualMachineScaleSetResource(virtualMachineScaleSetResourceId);

// invoke the operation
await virtualMachineScaleSet.ReimageAsync(WaitUntil.Completed);

Console.WriteLine($"Succeeded");

To use the Azure SDK library in your project, see this documentation. To provide feedback on this code sample, open a GitHub issue

Sample response

Status code:

200

Status code:

202

location: https://foo.com/operationstatus

Definitions

Name	Description
ApiError	Api error.
ApiErrorBase	Api error base.
CloudError	An error response from the Compute service.
InnerError	Inner error details.
OSProfileProvisioningData	Additional parameters for Reimaging Non-Ephemeral Virtual Machine.
VirtualMachineScaleSetReimageParameters	Describes a Virtual Machine Scale Set VM Reimage Parameters.

ApiError

Api error.

Name	Type	Description
code	string	The error code.
details	ApiErrorBase[]	The Api error details
innererror	InnerError	The Api inner error
message	string	The error message.
target	string	The target of the particular error.

ApiErrorBase

Api error base.

Name	Type	Description
code	string	The error code.
message	string	The error message.
target	string	The target of the particular error.

CloudError

An error response from the Compute service.

Name	Type	Description
error	ApiError	Api error.

InnerError

Inner error details.

Name	Type	Description
errordetail	string	The internal error message or exception dump.
exceptiontype	string	The exception type.

OSProfileProvisioningData

Additional parameters for Reimaging Non-Ephemeral Virtual Machine.

Name	Type	Description
adminPassword	string	Specifies the password of the administrator account. Minimum-length (Windows): 8 characters Minimum-length (Linux): 6 characters Max-length (Windows): 123 characters Max-length (Linux): 72 characters Complexity requirements: 3 out of 4 conditions below need to be fulfilled Has lower characters Has upper characters Has a digit Has a special character (Regex match [\W_]) Disallowed values: "abc@123", "P@$$w0rd", "P@ssw0rd", "P@ssword123", "Pa$$word", "pass@word1", "Password!", "Password1", "Password22", "iloveyou!" For resetting the password, see How to reset the Remote Desktop service or its login password in a Windows VM For resetting root password, see Manage users, SSH, and check or repair disks on Azure Linux VMs using the VMAccess Extension
customData	string	Specifies a base-64 encoded string of custom data. The base-64 encoded string is decoded to a binary array that is saved as a file on the Virtual Machine. The maximum length of the binary array is 65535 bytes. Note: Do not pass any secrets or passwords in customData property. This property cannot be updated after the VM is created. The property customData is passed to the VM to be saved as a file, for more information see Custom Data on Azure VMs. If using cloud-init for your Linux VM, see Using cloud-init to customize a Linux VM during creation.

VirtualMachineScaleSetReimageParameters

Describes a Virtual Machine Scale Set VM Reimage Parameters.

Name	Type	Description
exactVersion	string	Specifies in decimal number, the version the OS disk should be reimaged to. If exact version is not provided, the OS disk is reimaged to the existing version of OS Disk.
forceUpdateOSDiskForEphemeral	boolean	Parameter to force update ephemeral OS disk for a virtual machine scale set VM
instanceIds	string[]	The virtual machine scale set instance ids. Omitting the virtual machine scale set instance ids will result in the operation being performed on all virtual machines in the virtual machine scale set.
osProfile	OSProfileProvisioningData	Specifies information required for reimaging the non-ephemeral OS disk.
tempDisk	boolean	Specifies whether to reimage temp disk. Default value: false. Note: This temp disk reimage parameter is only supported for VM/VMSS with Ephemeral OS disk.