fix: use standard API for Azure VMs in VMSS with flexible orchestration mode

[pdecat]

If VMs are managed by VMSS in flexible orchestration mode, the standard VM API must be used: https://learn.microsoft.com/en-us/answers/questions/1418158/rest-api-request-returns-badrequest-for-vmss

Without this change, the following error occurs when trying to read power_state of such VMs:

# steampipe query 'select power_state from azure_compute_virtual_machine_scale_set_vm'                                                 11:24:09

Error: azure: compute.VirtualMachineScaleSetVMsClient#GetInstanceView: Failure responding to request: StatusCode=400 -- Original Error: autorest/azure: Service returned an error. Status=400 Code="InvalidParameter" Message="Virtual Machine Scale Set VM instanceId must be a number." Target="instanceId" (SQLSTATE HV000)

+-------------+
| power_state |
+-------------+
+-------------+

With this change, this returns the power state properly:

# steampipe query 'select power_state from azure_compute_virtual_machine_scale_set_vm'
+-------------+
| power_state |
+-------------+
| running     |
+-------------+

[pdecat]

This is necessary to distinguish standard VMs from VMs managed by VMSS in flexible orchestration mode.

[ParthaI]

Hi @pdecat,

Thank you so much for raising the PR! The changes make perfect sense to me.

I have a few suggestions:

• Could you please add a comment above the getAzureComputeVirtualMachineScaleSetVmInstanceView function explaining why these changes are needed? It would be helpful to include a link to the official discussion regarding the error, for future reference.
• Could you also please add the query results in the PR body after fixing the issue?

Thank you again!

[ParthaI]

Please include the error log statement.

[pdecat]

Done!

[ParthaI]

Please include the error log statement.

[pdecat]

Done!