EF Core - create database programmatically - entity-framework-core

Question

What's the best approach to create a database in EF core programmatically and then run the migrations to make sure the new database has all database objects?
We're building a SaaS based application where subscribers can signup on the website themselves and when they signup providing correct payment details, the application needs to create a new database (in SQL Azure) for the subscriber automatically and execute all migrations on the new database.
I have looked at this question here:
auto create database in Entity Framework Core
It does not give details on the following:
1) how to specify the name of the new database
2) create a new database login
3) add that new database login to the database as a user with dbo permissions

Answer 1

Create an Azure SQL Database Basic tier (for example, it cost $5 a month, you can also create a free one available for a year) with all the objects needed on the database, which you can copy asynchronously with a statement like below or using PowerShell.
CREATE DATABASE db_copy
AS COPY OF ozabzw7545.db_original ( SERVICE_OBJECTIVE = 'P2' );
You can then monitor when the copy finishes with below statement:
Select
[sys].[databases].[name],
[sys].[databases].[state_desc],
[sys].[dm_database_copies].[start_date],
[sys].[dm_database_copies].[modify_date],
[sys].[dm_database_copies].[percent_complete],
[sys].[dm_database_copies].[error_code],
[sys].[dm_database_copies].[error_desc],
[sys].[dm_database_copies].[error_severity],
[sys].[dm_database_copies].[error_state]
From
[sys].[databases]
Left
Outer
Join
[sys].[dm_database_copies]
On
[sys].[databases].[database_id] = [sys].[dm_database_copies].[database_id]
Where
[sys].[databases].[name] = 'db_copy'