azurerm_sql_elasticpool: support vcore model

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Description

With SQL Server Elastic Pools, you can deploy with either DTU or vCore model, this is an enhancement request to support the vCore model of setting up SQL Elastic Pools.

Service tiers are differentiated by a range of performance levels, high availability design, fault isolation, types of storage and IO range. With the vCore model, single databases and elastic pools are eligible for up to 30 percent savings with the Azure Hybrid Use Benefit for SQL Server.

When creating new SQL Elastic Pools, you can specify DTU or vCore

New or Affected Resource(s)

azurerm_sql_elasticpool

Potential Terraform Configuration

resource "azurerm_sql_elasticpool" "test" {
    name = "test"
    resource_group_name = "${azurerm_resource_group.test.name}"
    location = "${azurerm_resource_group.test.location}"
    server_name = "${azurerm_sql_server.test.name}"
    sku_name = "GP_Gen5"
    sku_tier = "GeneralPurpose"
    sku_capacity = 4
    db_perf_min = 0
    db_perf_max = 4
    pool_size = 161061273600   =(150GB) Would be nice to specify in friendly format
    zone_redundant = false
    license_type = "LicenseIncluded"
}

References

https://docs.microsoft.com/en-us/rest/api/sql/elasticpools/createorupdate

https://docs.microsoft.com/en-us/azure/sql-database/sql-database-service-tiers-vcore

hashicorp / terraform-provider-azurerm