Change infrastructure

expected time	requirements
15 minutes	A computer with Terraform installed.

Goal Learn how to change infrastructure.

Explanation

In the previous lab you were able to connect (and create a resource) on the cloud provider. Let’s modify your code a bit and understand how Terraform reacts. You’ll add a few tags to the azurerm_resouce_group.

Howto

Follow the steps described below.

• AWS.
• Azure.
• GCP.

Demo

• GCP

Assignment

• Follow the step in the Howto section for your cloud provider.
• Make sure you run terraform plan and terraform apply.
• Verify in the cloud providers console/portal that your changes have been applied.

View the results

AWS Console

Azure Portal

GCP Console

Questions:

1. Can I still change stuff (resources) manually on the providers console?
2. If I lost the state file, can I simply re-apply the same Terraform code?
3. If I change the name of an instance, will the instance be recreated or renamed?
4. Why would you append -out=planfile to terraform plan?

Solution

It’s described in this section:

• Azure
• GCP