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

1
votes

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.

2
pythonazurecommand-line-interface
from the class definition for OSDisk: – John Fortin
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

2 Answers

1
votes

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.

0
votes

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.