Demo OpenTofu Providers

In this lesson, we will:

1. Inspect an OpenTofu configuration directory
2. Count providers, configuration files, and resources
3. Create local file resources
4. Identify provider modules in specific directories

Prerequisites

Ensure you have OpenTofu installed and accessible in your $PATH. We will work under:

/root/opentofu-project/things-to-do

Initially, this directory contains only main.tf.

1. Counting Providers, Files, and Resources

Before running any commands, let’s answer a few questions:

main.tf resource blocks:

resource "local_file" "things-to-do" {
  filename = "/root/things-to-do.txt"
  content  = "Clean my room before Christmas\nComplete the CKA Cert!"
}

resource "local_file" "more-things-to-do" {
  filename = "/root/more-things-to-do.txt"
  content  = "Learn how to play Astronomia on the guitar!"
}

2. Creating Local File Resources

Apply the configuration:

cd /root/opentofu-project/things-to-do
opentofu init
opentofu apply

Confirm with yes. This will create:

• /root/things-to-do.txt
• /root/more-things-to-do.txt

3. Working with a New Configuration Directory

Create or navigate to:

/root/opentofu-project/Christmas_list

It contains two files: cyberpunk.tf and ps5.tf. Each defines a local_file resource.

cyberpunk.tf

resource "local_file" "cyberpunk" {
  filename = "/root/cyberpunk2077.txt"
  content  = "All I need for Christmas is Cyberpunk 2077!"
}

ps5.tf

resource "local_file" "ps5" {
  filename = "/root/ps5.txt"
  content  = "All I need for a PS5!"
}

Total resources: 2
cyberpunk resource filename: /root/cyberpunk2077.txt

3.1 Adding an Xbox Resource

Create xbox.tf in the same directory:

resource "local_file" "xbox" {
  filename = "/root/xbox.txt"
  content  = "Wouldn't mind an Xbox either!"
}

Then run:

cd /root/opentofu-project/Christmas_list
opentofu init
opentofu plan
opentofu apply

Confirm with yes to add /root/xbox.txt.

4. Identifying Provider Modules

We have two provider directories to inspect:

Example snippet from providerA/required_providers:

terraform {
  required_providers {
    linode = {
      source  = "linode/linode"
      version = "1.13.3"
    }
  }
}

References

• OpenTofu Documentation
• Terraform Language Configuration
• Local File Provider