Terraform Hands-on

The goal of this repository is to teach Terraform with a focus on Azure.

Each folder in this repository is its own Terraform setup.

Progressing through the learning track

The concept is that you progress through each subfolder starting from 01.

I recommend studying each setup in chronological order. Each folder contain a README with explanations and instructions.

01._Setup_And_Basics: Introduces you to how to setup a new Terraform project, work with workspaces and some language functionalities of HCL.

02._Basic_VM: Provides a quick and dirty solution to creating a virtual machine in cloud.

But it contain the desired virtual machine password in plain text. The goal is to fix the problem.

03._VM_With_SSH: Solves the previous password problem in a better way by using SSH keys.

04._Azure_Blob_Storage/: Shows how to deploy a Blob Storage (file storage) and upload a file to it. Also contains a Node.js example of how to generate a SAS token used to generate a URL to see the file.

INCOMPLETE SKIP THIS ONE (Terraform Functions): Terraform functions is included in the Github Actions example.

06._Key_Vault Shows to to deploy a Key Vault which works. Also show how to define and retrieve which cannot be done with a Azure For Students account since it requires a Service Principal.

07._Github_Actions_CICD: A link to a video tutorial on how to setup Terraform in Github Actions (CI/CD). This also requires a Service Principal so the tutorial is not fleshed out but I recommend going watching the videos.

How to run

Make sure you have the fulfilled the prerequisites.

Inside of each subfolder read the README.md on how to get started.

Make sure that you are in the root of each Terraform project when running Terraform commands.

You are in the right place if you can see a README.md besides this one.

1. If the Terraform project is valid then run this to initialize the project:

$ terraform init

2. Once you are ready you can optionally run terraform fmt, terraform validate and then create a plan:

$ terraform plan

3. If you are sure that you would like to provision the resouces then run apply:

$ terraform apply

You will be shown a plan of what will be added, changed and/or destroyed.

It is recommended not to bypass with the terraform apply -auto-approve command.

This gives you one last chance to spot potential errors.

4. Once you are done with an exercise, remember to tear down the resources including the resource groups:

$ terraform destroy

Make sure that the above command works. Sometimes it will error out and it does it slowly by timing out.

Just Terraform things, I guess.

If everything else fails , then manually delete the service(s) and/or resource group in Azure Portal.

Further resources