Deploying Your First Terraform Configuration¶

Terraform Components¶

Terraform executable
Terraform files
Terraform plugins
Terraform state

Variables

variable "aws_access_key" {}
variable "aws_secret_key" {}
variable "aws_region" {
  default = "us-east-1"
}

Provider

provider "aws" {
access_key = "var.access_key"
secret_key = "var.secret_key"
region = "var.aws_region"
}

Data

data "aws_ami" "alx" {
most_recent = true
owners = ["amazon"]
filters {}
}

Resource

resource "aws_instance" "ex" {
ami = "data.aws_ami.alx.id"
instance_type = "t2.micro"
}

Output

output "aws_public_ip" {
value = "aws_instance.ex.public_dns"
}

Examining the Configuration¶

module_three.tf

Working with Variables¶

terraform.tfvars.example

Deploying the Configuration¶

# List terraform commands
terraform

# Get the terraform version
terraform version

# Get AWS plugin and initialise configuration
terraform init

# Look at config files in directory and load variables
terraform plan -out m3.tfplan

# Executing what's in the plan
terraform apply "m3.tfplan"

# Looks at state file and what resources were created and destroys them
terraform destroy