Azure python vm create fails when trying to create image with custom image

Question

VM create fails with is osDisk error: msrestazure.azure_exceptions.CloudError: Changing property 'osDisk.image.uri' is not allowed.

Code snippet is as follows:

 storage_profile=azure.mgmt.compute.models.StorageProfile(
            os_disk=azure.mgmt.compute.models.OSDisk(
                caching=azure.mgmt.compute.models.CachingTypes.none,
                create_option=azure.mgmt.compute.models.DiskCreateOptionTypes.from_image,
                name=OS_DISK_NAME,
                os_type='Linux',
                vhd=azure.mgmt.compute.models.VirtualHardDisk(
                    uri='https://{0}.blob.core.windows.net/vhds/{1}.vhd'.format(
                        STORAGE_NAME,
                        OS_DISK_NAME,
                    ),
                ),
                image=azure.mgmt.compute.models.VirtualHardDisk(
                    uri='https://xxxxxxxxx.blob.core.windows.net/vm-images/Centos67-Azure.vhd'
                ),
            )

image is defined in the python API and the URi defined works fine with the Azure CLI

API azure==2.0.0rc3

If it helps this is the transaction being sent to azure:

url: hps://management.azure.com/subscriptions/b97ddb69-f825-48b4-9e19-48eb3b4c8267/resourceGroups/dev-eu-vnet9-rg/providers/Microsoft.Compute/virtualMachines/centos67-api

header parameters: {'accept-language': 'en-US', 'Content-Type': 'application/json; charset=utf-8', 'x-ms-client-request-id': 'f65196f4-0e3b-11e6-a61b-b499baffc71a'}

body content: {'properties': {'storageProfile': {'osDisk': {'osType': 'Linux', 'createOption': 'fromImage', 'name': 'centos67-api', 'caching': 'None', 'vhd': {'uri': 'https://deveuvnet9rg9944.blob.core.windows.net/vhds/centos67-api.vhd'}, 'image': {'uri': 'https://deveuvnet9rg9944.blob.core.windows.net/vm-images/Centos67-Azure.vhd'}}}, 'hardwareProfile': {'vmSize': 'Standard_DS1'}, 'osProfile': {'adminUsername': 'cloud_user', 'computerName': 'centos67-api', 'adminPassword': 'xxxxxxxx'}, 'networkProfile': {'networkInterfaces': [{'id': '/subscriptions/b97ddb69-f825-48b4-9e19-48eb3b4c8267/resourceGroups/dev-eu-vnet9-rg/providers/Microsoft.Network/networkInterfaces/centos67-api'}]}}, 'location': 'eastus'}

Traceback (most recent call last): File "./azure_client.py", line 220, in result.wait() # async operation File "/usr/lib/python2.7/site-packages/msrestazure/azure_operation.py", line 639, in wait raise self._exception msrestazure.azure_exceptions.CloudError: Changing property 'osDisk.image.uri' is not allowed.

According to the document for REST API Create or update a virtual machine, the request body content not includes the property image of the osDisk for the storageProfile. — Peter Pan
– Peter Pan, Commented May 4, 2016 at 9:25

John Fortin · Accepted Answer · 2016-05-05 13:46:33Z

1

The issue has been resolved. Turned out the error returned is somewhat misleading. The issue was that there was that the target disk already existed and therefore couldn't be modified (i.e. change property error).

Once the target had a unique name the process worked properly and I was able to create VMs from my custom image.

answered May 5, 2016 at 13:46

John Fortin

216 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Peter Pan · Accepted Answer · 2016-04-28 07:49:49Z

0

According to the document, the class StorageProfile construction function has three parameters include image_reference, os_disk and data_disk. The parameter image in your code should be the class azure.mgmt.compute.models.ImageReference, not the class azure.mgmt.compute.models.VirtualHardDisk.

As reference, here is the sample code from the document.

storage_profile=azure.mgmt.compute.models.StorageProfile(
    os_disk=azure.mgmt.compute.models.OSDisk(
        caching=azure.mgmt.compute.models.CachingTypes.none,
        create_option=azure.mgmt.compute.models.DiskCreateOptionTypes.from_image,
        name=OS_DISK_NAME,
        vhd=azure.mgmt.compute.models.VirtualHardDisk(
            uri='https://{0}.blob.core.windows.net/vhds/{1}.vhd'.format(
                STORAGE_NAME,
                OS_DISK_NAME,
            ),
        ),
    ),
    image_reference = azure.mgmt.compute.models.ImageReference(
        publisher=IMAGE_PUBLISHER,
        offer=IMAGE_OFFER,
        sku=IMAGE_SKU,
        version=IMAGE_VERSION,
    ),
)

Hope it helps. Any concern, please feel free to let me know.

answered Apr 28, 2016 at 7:49

Peter Pan

24.2k4 gold badges31 silver badges47 bronze badges

2 Comments

John Fortin Over a year ago

ImageReference is for using Published images from the Azure Store, not for custom images uploaded Azure. That works perfectly fine. Unfortunately I need to use customized images that we create and upload

John Fortin Over a year ago

This is part of the definition for OSDisk. Look at the definition for image class OSDisk(Model): """ Describes an Operating System disk. ... :param image: Gets or sets the Source User Image VirtualHardDisk. This VirtualHardDisk will be copied before using it to attach to the Virtual Machine.If SourceImage is provided, the destination VirtualHardDisk should not exist. :type image: :class:VirtualHardDisk <azure.mgmt.compute.models.VirtualHardDisk> ...

Collectives™ on Stack Overflow

Azure python vm create fails when trying to create image with custom image

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related