main.tf

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 3.27"
    }
  }
}

provider "aws" {
  region = "us-east-1"
}

variable "pubkey" {}

locals {
  pubkey_content = file(var.pubkey)
}

data "aws_ami" "ubuntu" {
  most_recent = true

  filter {
    name   = "name"
    values = ["ubuntu*22.*"]
  }

  filter {
    name   = "virtualization-type"
    values = ["hvm"]
  }

  owners = ["099720109477"] # Canonical
}

resource "aws_key_pair" "ssh_key" {
  key_name   = "ssh-key"
  public_key = local.pubkey_content
}

resource "aws_security_group" "allow_ssh" {
  name        = "allow_ssh"
  description = "Allow SSH inbound"
  ingress {
    from_port   = 22
    to_port     = 22
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"]
  }
  egress {
    from_port   = 0 
    to_port     = 0
    protocol    = -1 
    cidr_blocks = ["0.0.0.0/0"]
  }
}

resource "aws_instance" "ec2_instance" {
  ami                         = data.aws_ami.ubuntu.id
  instance_type               = "t2.micro"
  associate_public_ip_address = true
  user_data                   = file("provision.sh")
  vpc_security_group_ids      = [aws_security_group.allow_ssh.id]
  key_name                    = aws_key_pair.ssh_key.key_name

  tags = {
    Name = "ec2 toolbox"
  }
}