#Terraform

1# macOS
2brew tap hashicorp/tap
3brew install hashicorp/tap/terraform
4
5# Linux
6wget https://releases.hashicorp.com/terraform/1.6.0/terraform_1.6.0_linux_amd64.zip
7unzip terraform_1.6.0_linux_amd64.zip
8sudo mv terraform /usr/local/bin/

1# main.tf
2terraform {
3  required_providers {
4    aws = {
5      source  = "hashicorp/aws"
6      version = "~> 5.0"
7    }
8  }
9}
10
11provider "aws" {
12  region = "us-east-1"
13}
14
15resource "aws_instance" "web" {
16  ami           = "ami-0c55b159cbfafe1f0"
17  instance_type = "t2.micro"
18
19  tags = {
20    Name = "WebServer"
21  }
22}
23
24output "public_ip" {
25  value = aws_instance.web.public_ip
26}

1# Initialize
2terraform init
3
4# Plan
5terraform plan
6
7# Apply
8terraform apply
9
10# Destroy
11terraform destroy
12
13# Format
14terraform fmt
15
16# Validate
17terraform validate

1# Remote state (recommended)
2terraform {
3  backend "s3" {
4    bucket = "my-terraform-state"
5    key    = "prod/terraform.tfstate"
6    region = "us-east-1"
7  }
8}

1module "vpc" {
2  source  = "terraform-aws-modules/vpc/aws"
3  version = "5.0.0"
4
5  name = "my-vpc"
6  cidr = "10.0.0.0/16"
7}