GitHub actions, Azure infrastructure, and packer library

This project does three things,

• Terraform project creates the Shared Image Gallery in your Azure subscription to store images build by Packer
• GitHub actions to validate and build Packer templates into Azure images. Images are built whenever a commit or pull merges into the main branch, may be a bit of overkill so you can remove these if you want
• Packer templates built during the GitHub action workflow.

1. Go to app.terraform.io and create a Terraform Cloud (TFC) free account. Then create a new Workspace we will use to run this project.

2. Open backend.tf and change the organization and workspace name to a workspace you created in TFC.

3. Create a new Service Principal in Azure. This will be used to run your Terraform project in TFC. Follow the steps in one of these docs:

• https://docs.microsoft.com/en-us/azure/developer/terraform/authenticate-to-azure?tabs=bash#create-a-service-principal
• https://registry.terraform.io/providers/hashicorp/azuread/latest/docs/guides/service_principal_client_secret

4. Capture the client_id, client_secret, tenant_id, and subscription_id from the prior steps. Go to the TFC workspace and in the Variables tab, add these variables with the correct values. You will also need one more variable.

5. Make sure the TFC Workspace is mapped to this repo. Just follow the steps at Variables > Version Control

(optional), if you just want to deploy quickly you can delete backend.tf and run your terraform init & terraform apply locally. Just make sure you set or pass the values of the variables defined in variables.tf