tfenv

expected time	requirements
15 minutes	A computer with Terraform installed, terraform knowledge.

Goal: Learn how to benefit from tfenv.

Explanation

tfenv is a tool to manage versions of Terraform. It can be useful to quickly download or select a new version of Terraform. This would be useful for developing Terraform code and testing if it works on multiple versions of Terraform.

Howto

You may need to install tfenv. On the lab-machines it’s ready to be used.

Once installed you can:

• List locally installed versions: tfenv list.
• List remotely available versions: tfenv list-remote.
• Install new Terraform versions: tfenv install 1.1.7.
• Select Terraform versions: tfenv use 1.1.7.
• Install the latest Terraform version: tfvar install latest.
• Install the minimum required Terraform version: tfvar install min-required.

You can also pick a version in .terraform-version.

Assignment

1. What version of Terraform do you have installed now?
2. Install a very old version (0.6.1) of Terraform, see if your code still works.
3. Update to the latest version of Terraform.

Questions:

• Where or how could you use tfenv in your environment?