Postgresql flexibleserver creation is failing with "AttributeError: 'FlexibleServerCapability' object has no attribute 'supported_features'" from Azure CLI

Question

Postgresql flexibleserver creation is failing with "AttributeError: 'FlexibleServerCapability' object has no attribute 'supported_features'" from Azure CLI

Manohar Amkem 0

Hi Team,

I am very new Azure and I have an OpenSUSE vm with latest AZ CLI 2.71.0 installed. I am trying to create Postgresql Flexible server through cli with the below command

az postgres flexible-server create --subscription 5f010bfb-d6f2-44fe-8571-4f4a164fe6e7 --resource-group gcms-aks-cluster-rg --name systemgenericconfig --location "Central India" --version 13 --zone 1 --password-auth enabled --admin-user genericconfigusr --admin-password genericconfigpass --tier burstable --sku-name Standard_B2s --storage-type premium_lrs --storage-size 32

This command is crashing with the below exception {0DC40706-ACE6-4A3D-B6EB-80A41F0387DB} {613799FB-AE73-4EE5-834C-D3935FCBD8B4}

I have tried to change the location, sku-name etc but no help. The same error persists. Also I could not find much help on this error anywhere in the internet. Please help me to fix this as I am supposed to create my database as soon as possible.

Regards,

Manohar Amkem

Manasa Akula 250 Reputation points Microsoft External Staff

2025-04-11T01:25:52.58+00:00

Hi Manohar Amkem

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Manasa Akula 250 Reputation points Microsoft External Staff

2025-04-14T00:41:23.99+00:00

Hi Manohar Amkem

Just checking in to see if the below answer helped. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

1 answer

Your answer

Manasa Akula 250 Reputation points Microsoft External Staff

2025-04-11T01:25:52.58+00:00

Hi Manohar Amkem

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.
Manasa Akula 250 Reputation points Microsoft External Staff

2025-04-14T00:41:23.99+00:00

Hi Manohar Amkem

Just checking in to see if the below answer helped. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Answer 1

Hi Manohar Amkem,

I’d be happy to assist you in getting this resolved! Since the creation is failing with an error, it could be related to a variety of factors like CLI compatibility, parameter issues, or region-specific constraints. Without seeing the exact error message yet, I’ll suggest a few steps that should help troubleshoot and fix the issue.

For this here Editis a clearer explanation:

Verify Your Command and CLI Version Ensure you’re using the latest Azure CLI version, as older versions sometimes have bugs with Flexible Server commands. Run az --version to check—version 2.71.0 is current as of April 2025. If it’s outdated, update it with:

az upgrade

Then, retry your creation command. For example, a basic command might look like:

 az postgres flexible-server create --resource-group <your-rg> --name <server-name> --location <region> --admin-user <username> --admin-password <password>

Check Region and SKU Availability

az postgres flexible-server create --resource-group <your-rg> --name <server-name> --location <region> --admin-user <username> --admin-password <password>

If your command includes a specific tier or SKU (e.g., Standard_B2s), confirm it’s supported in your chosen region. Use:

   az postgres flexible-server list-skus --location <region> --output table

If the SKU or zone isn’t available, adjust your command (e.g., remove --zone or switch to a supported SKU like Standard_D2s_v3).

Enable Debug Mode for More Insight Rerun your command with the --debug flag to get detailed logs:

   az postgres flexible-server create [your-options] --debug

This might reveal if the failure is due to authentication, network policies, or an invalid parameter. Feel free to share the output, and I’ll help pinpoint the cause.

Common Fixes

A. Authentication Errors: Double-check your --admin-user and --admin-password. The password must meet complexity requirements (8-128 characters, with uppercase, lowercase, numbers, and special characters).

B. Network Issues: If using a VNet or private endpoint, ensure the subnet has the Microsoft.Sql service endpoint enabled.

C. Subscription or Permissions: Confirm your subscription is active and you have Contributor or Owner rights on the resource group (az role assignment list --assignee <your-email>).

Workaround with Minimal Command If the issue persists, try a stripped-down command to isolate the problem:

 az postgres flexible-server create --resource-group <your-rg> --name <server-name> --location <region> --admin-user <username> --admin-password <password>

Once it succeeds, you can update settings like tier or storage with:

   az postgres flexible-server update --resource-group <your-rg> --name <server-name> --tier <tier> --sku-name <sku>

I Hope this helps. Do let us know if you any further queries.

If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

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Postgresql flexibleserver creation is failing with "AttributeError: 'FlexibleServerCapability' object has no attribute 'supported_features'" from Azure CLI

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