Creating the required infrastructure with Terraform

As our goal was to build a scalable LAMP stack, we will define a VM scale set using the apache-webserver image we created and a single Virtual Machine with the mysql-dbserver image. A VM scale set is an autoscaling group of Virtual Machines that will scale out and scale back horizontally based on traffic, similar to how we did with containers on Kubernetes.

We will create the following resources:

• A new resource group called lamp-rg
• A virtual network with a resource group called lampvnet
• A subnet within lampvnet called lampsub
• Within the subnet, we create a NIC for the database called db-nic that contains the following:

  – A network security group called db-nsg

  – A Virtual Machine called db that uses the custom mysql-dbserver image

• We then create a VM scale set that includes the following:

  –A network profile called webnp

  – A backend address pool

  – A load balancer called web-lb...