devops-exercises/topics/terraform/exercises/launch_ec2_instance/solution.md

65 lines
1.3 KiB
Markdown
Raw Normal View History

# Launch EC2 instance
2022-09-20 07:47:58 +02:00
## Requirements
* AWS account
## Objectives
1. Write Terraform configuration for launching an EC2 instance
2. Run the commands to apply the configuration and create the EC2 instance
3. What happens if you run again `terraform apply`?
4. Destroy the instance you've created with Terraform
## Solution
```
mkdir exercise
cat << EOT >> main.tf
terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 4.16"
}
}
required_version = ">= 1.2.0"
}
provider "aws" {
region = "us-west-2"
}
resource "aws_instance" "app_server" {
ami = "ami-830c94e3"
instance_type = "t2.micro"
tags = {
Name = "ExampleAppServerInstance"
}
}
EOT
terraform init
terraform validate
terraform plan
# You should see this line at the end: Plan: 1 to add, 0 to change, 0 to destroy
terraform apply -auto-approve
# You should see the following output:
# aws_instance.app_server: Creation complete after 49s [id=i-004651a9d4427d236
# Running 'terraform apply' again won't change anything as
# Terraform will compare actual infrastructure to your
# configuration and won't find any difference. You should see the following line:
# Apply complete! Resources: 0 added, 0 changed, 0 destroyed.
# Remove instance
terraform destroy -auto-approve
# Destroy complete! Resources: 1 destroyed.
```