Summary

Azure Bastion provide feature that login to Azure Virtual Machine from Azure Portal.
Example is here, click it to play a GIF animation.

Prerequisites

• Azure Virtual Machine belong Virtual Network that has subnet for Azure Bastion

Steps

Great tutorial is here.

• Tutorial: Create an Azure Bastion host: Windows VM: portal | Microsoft Docs

References

Tutorial: Create an Azure Bastion host: Windows VM: portal | Microsoft Docs