This tutorial shows how to install Terraform on the Linux machine (Ubuntu Focal 20.04).
Check the Ubuntu release version
lsb_release -d
Update the apt package
sudo apt-get update
sudo apt-get install -y gnupg software-properties-common
Install the HashiCorp GPG key
wget -O- https://apt.releases.hashicorp.com/gpg | \
gpg --dearmor | \
sudo tee /usr/share/keyrings/hashicorp-archive-keyring.gpg
Verify the key’s fingerprint.
gpg --no-default-keyring \
--keyring /usr/share/keyrings/hashicorp-archive-keyring.gpg \
--fingerprint
Add Hashicorp Repository
echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] \
https://apt.releases.hashicorp.com $(lsb_release -cs) main" | \
sudo tee /etc/apt/sources.list.d/hashicorp.list
Install Terraform
sudo apt update
sudo apt-get install terraform
Verify the Installation
terraform -help
Enable Tab Completion
touch ~/.bashrc
terraform -install-autocomplete
Tutorial
Launch the nginx docker image using Terraform. You need to install Docker.
Write the Terraform script
mkdir terraform-test
cd terraform-test
vi main.tf
terraform {
required_providers {
docker = {
source = "kreuzwerker/docker"
version = "~> 2.23.1"
}
}
}
provider "docker" {}
resource "docker_image" "nginx" {
name = "nginx:latest"
keep_locally = false
}
resource "docker_container" "nginx" {
image = docker_image.nginx.image_id
name = "test"
ports {
internal = 80
external = 8080
}
}
Initialize and Provision
terraform init
sudo terraform apply
docker container ls
Open the web browser and access http://{host-ip}:8080. You can see the nginx home page.
Scriptorium 