I wanna ask how I use rest api to get VM information of vmSizeProperties

Question

I wanna ask how I use rest api to get VM information of vmSizeProperties

박현우 1

Dear sir,
This is Hyunwoo Park, cloud engineer.

Through https://learn.microsoft.com/ko-kr/rest/api/compute/virtual-machines/list?tabs=HTTP#virtualmachines_list_minimumset_gen,
I got to know about using rest-api to get vm information.

I found that I could get VM size properties such as vCPUsAvailable, vCPUsPerCore through the example of above web page.
But, when I used api, I only got the vmSize(SKU information), I couldn't get those information.
Can you tell me how to get VM size properties like vCPUsAvailable and vCPUsPerCore?

I captured the picture and posted it together.
Please Check and let me know how I can solve this situation.

Best Regards,

1 answer

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Answer 1

Prrudram-MSFT 28,201 Moderator

Hello @박현우 ,

Thank you for reaching out to the Microsoft Q&A platform. Happy to answer your question.

It appears you have used the very first GET api from the document, which will only list all of the virtual machines in the specified resource group with limited properties.

You have used this
GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachines?api-version=2022-08-01

I get the same results for the above as you

You should use this VirtualMachines_List_MaximumSet_Gen api to get the details such as vCPUsAvailable, vCPUsPerCores etc

GET https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/rgcompute/providers/Microsoft.Compute/virtualMachines?$filter=aaaaaaaaaaaaaaaaaaaaaaa&api-version=2022-08-01

Note: You could use any api tool like Postman API tool for running the azure rest apis, for details on how to use Azure REST APIs with Postman see the below link
https://microsoft.github.io/AzureTipsAndTricks/blog/tip223.html

Hope this helps!
Please "Accept as Answer" and Upvote if the answer provided is useful, so that you can help others in the community looking for remediation for similar issues.

박현우 1 Reputation point

2022-11-18T06:29:16.46+00:00

Hi~

Thank you for your kind reply.

Actually I tried the api which you recommended to me as well.
(GET https://management.azure.com/subscriptions/{subscription-id}/resourceGroups/rgcompute/providers/Microsoft.Compute/virtualMachines?$filter=aaaaaaaaaaaaaaaaaaaaaaa&api-version=2022-08-01)

Can you show me the result with the api you suggested to me?
Prrudram-MSFT 28,201 Reputation points Moderator

2022-11-22T19:00:54.97+00:00

@박현우 ,

I have run the rest api suggested and its only showing VM SKU size. For the standard VMs only the VM SKU is getting fetched. I believe only the VMs present inside a scale set would give out the additional properties like vCPUsAvailable/vCPUsPerCore etc., because in VM scale set, we can dedicate the CPU core count whereas for the regular VMs we cannot assign a custom core count per VM. Hence the VM SKU size which decides the VM configuration makes sense.
To test this further, I will have to spin some VMSS. I will check on that and get back to you.
Prrudram-MSFT 28,201 Reputation points Moderator

2022-12-02T04:22:36.727+00:00

Hello @박현우 ,

I tried creating one a couple of days back and it didn't give me the core count details as mentioned in the document. I have written to the document team to validate and update the document incase if there are any further conditions for that particular information to be displayed.

Thanks for bringing this up.

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I wanna ask how I use rest api to get VM information of vmSizeProperties

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