Unable to create azure postgresql flexible server with azure-cli - azure

Question

I'm trying to create a postgresql database on azure with azure-cli. I set my default location with az configure --defaults location=WestEurope, then I created a resourcegroup, a vnet and a subnet. Now I want to create a flexible server for postgresql with
az postgres flexible-server create --name $SERVERNAME --vnet $VNET --subnet $DBSUBNET
--admin-user $DB_USER --admin-password $DB_PASSWORD --sku-name Standard_B1ms --tier Burstable --storage-size 1024 --tags "Billing=test" --version 13 --database-name $DB_NAME
but I get this error and the server is not created: The location of Vnet should be same as the location of the server.
My Vnet is obviously located in WestEurope, given my default location set before, and I can't understand how the location of any resource I create could be different from my default location. I even tried to add --location WestEurope to the command, but it produced the same result.

Answer 1

I tried to set the default location as West Europe through AZ CLI in Azure Cloud Shell:
az configure --defaults location=westeurope
To create the PostgreSQL Server and database in the specified default location:
az postgres flexible-server create --resource-group HariTestRG \
--name demoserver1205 --admin-user <username> --admin-password <your-password> \
--sku-name Standard_B1ms --tier Burstable --storage-size 1024 \
--tags "Billing=test" --version 13 \
--vnet myVnet --subnet mySubnet --database-name demopsqldb01 \
Result:
Private DNS Zone is created at the global level automatically by Azure while creating the Postgres SQL Server and the Virtual Network.
Note:
After executing the default location command, you need to execute the remaining CLI commands without any error.
If you got the error in between the execution of any other commands, then execute the default location config command again.
Without interactive activity, cloud shell time out after 20 minutes and it runs on a temporary host provided on a per-session basis.
Updated Answer:
Here I created the VNet and Subnet in the resource group. Created the PostgreSQL Server and database with the existing VNet and Subnet through AZ CLI (using the above CLI Cmdlets - worked successfully):
Result: