Discover and Import Existing Resources

In this objective, you'll use the Azure portal to explore the virtual network that you'll be importing into a Terraform configuration.

1. Log into the Azure portal using the provided credentials and link
2. Browse the contents of the resource group, noting the resource group name
3. Examine the virtual network and note the settings

In this objective, you'll install the Azure Export for Terraform tool and use it to create a Terraform configuration to manage the virtual network. Note that you will not be managing the resource group that contains the virtual network.

1. Install the Azure Export for Terraform tool following the installation instructions found at the link.
2. Log into Azure using the Azure CLI and the provided lab credentials:

az login

3. Create a directory to hold the imported configuration and state
4. In the directory, run the aztfexport tool and pass it the resource group name:

aztfexport rg "RESOURCE_GROUP_NAME"

5. Skip the resource group and import the rest of the resources
6. Verify the created configuration and state data

Although Azure Export for Terraform created the configuration for you and imported state, you still need to make some adjustments to the configuration to make it usable and more flexible. In this objective, you'll update the provider block, add the resource group as a data source, and replace hardcoded values with references.

1. Update the azurerm provider block to include the skip_provider_registration = true argument
2. Add an azurerm_resource_group data source that takes an input variable of resource_group_name
3. Add the resource_group_name input variable
4. Update the hardcoded resource group name and location values with a data source reference
5. Update the subnets with resource references to the virtual network
6. Remove the depends_on blocks
7. Add a terraform.tfvars file with the resource_group_name variable value
8. Run a terraform plan to confirm that no infrastructure changes are required