https://build5nines.com/deploying-hub-and-spoke-network-topology-in-microsoft-azure-using-terraform/

Pipelines

https://youtu.be/EI66gHS0Eng?feature=shared

https://youtu.be/A8bGCLOqetA?si=KjrYGMYH5exYogO5

import terraform state.

https://thomasthornton.cloud/2021/03/31/importing-terraform-state-in-azure/