Deploying Todo List Application With Terraform

In this task, you need to create an Azure Virtual Machine using Terraform and deploy a ToDo List application using a VM extension. The Terraform configuration will create all necessary resources, including a resource group, storage account, network security group, virtual network, subnet, public IP, and the virtual machine itself.

Prerequisites

To complete this task, Terraform and Azure CLI must be installed and configured on your machine.

Steps to Complete the Task

1. Fork this Repository

2. Create Directory Structure

• Create the following directory structure:

/
├─ modules/
│  ├─ network/
│  │  ├─ main.tf
│  │  ├─ variables.tf
│  │  └─ outputs.tf
│  ├─ compute/
│  │  ├─ main.tf
│  │  ├─ variables.tf
│  │  └─ outputs.tf
│  └─ storage/
│     ├─ main.tf
│     ├─ variables.tf
│     └─ outputs.tf
├─ main.tf
├─ variables.tf
├─ outputs.tf
├─ terraform.tfvars
└─ backend.tf

3. Define Network Module

• The network module will create a virtual network, subnet, network security group, and public IP address.
  • Virtual Network: name it vnet, address prefix 10.0.0.0/16.
  • Subnet: name it default, address prefix 10.0.0.0/24.
  • Network Security Group: name it defaultnsg.
  • Public IP Address: name it linuxboxpip, dynamic allocation method, and assign a DNS label generated by concatenating matetask and a random number.

4. Define Compute Module

• The compute module will create a network interface, virtual machine, and VM extension for deploying the ToDo List application.
  • Network Interface: name it ${var.vm_name}-nic.
  • Virtual Machine: name it matebox, image Ubuntu2204, size Standard_B1s, SSH key linuxboxsshkey.
  • VM Extension: use the CustomScript extension to execute install-app.sh script.

5. Define Storage Module

• The storage module will create a storage account and a storage container.
  • Storage Account: any name.
  • Storage Container: name it task-artifacts.

6. Configure Remote State Backend

• Define the backend configuration in backend.tf to store the state in Azure Blob Storage. Use the following parameters:
  • Resource Group: mate-azure-task-12.
  • Storage Account: yourstorageaccount.
  • Container Name: tfstate.
  • Key: terraform.tfstate.
• Ensure that you have a storage account and container created for the remote state. This can be included in your main.tf or managed separately.

7. Use Modules in Main Configuration

• Define variables in variables.tf with the following parameters:
  • location: uksouth.
  • resource_group_name: mate-azure-task-12.
  • virtual_network_name: vnet.
  • vnet_address_prefix: 10.0.0.0/16.
  • subnet_name: default.
  • subnet_address_prefix: 10.0.0.0/24.
  • network_security_group_name: defaultnsg.
  • public_ip_address_name: linuxboxpip.
  • vm_name: matebox.
  • vm_size: Standard_B1s.
  • ssh_key_public: your-public-key-content.
  • dns_label: matetask (you can append a random number in your script).

8. Initialize and Apply the Configuration

9. Verify the Deployment

• Access the virtual machine using the public IP address.
• Verify the application is running by visiting the public IP in a web browser.

10. Pull request's description should also contain a reference to a successful workflow run