main.tf

data "aws_vpc" "main" {
  id = var.vpc_id
}

resource "aws_key_pair" "deployer" {
  key_name   = "deployer-key"
  public_key = var.public_key
}

data "template_file" "user_data" {
  template = file("${abspath(path.module)}/userdata.yaml")
}

data "aws_ami" "amazon-linux-2" {
	
 	most_recent = true
	owners = ["amazon"]
	filter {
		name   = "owner-alias"
		values = ["amazon"]
	}
	filter {
		name   = "name"
		values = ["amzn2-ami-hvm*"]
	}
}

resource "aws_instance" "mydemo_server" {
  ami           = "${data.aws_ami.amazon-linux-2.id}"
  instance_type = var.instance_type
  key_name = "${aws_key_pair.deployer.key_name}"
  vpc_security_group_ids = [aws_security_group.sg_demo_server.id]
  user_data = data.template_file.user_data.rendered
  
  tags = {
    Name = var.server_name
  } 
}

resource "aws_security_group" "sg_demo_server" {
  name        = "sg_demo_server"
  description = "MyDemoServer SG"
  vpc_id      = data.aws_vpc.main.id

  ingress = [
    {
    description      = "SSH"
    from_port        = 22
    to_port          = 22
    protocol         = "tcp"
    cidr_blocks      = [var.my_ip]
    ipv6_cidr_blocks = []
    prefix_list_ids  = []
		security_groups = []
		self = false
  },
  {
    description      = "HTTP"
    from_port        = 80
    to_port          = 80
    protocol         = "tcp"
    cidr_blocks      = ["0.0.0.0/0"]
    ipv6_cidr_blocks = []
    prefix_list_ids  = []
		security_groups = []
		self = false
  }
  ]

  egress =[
    {
    description = "outgoing traffic"
    from_port        = 0
    to_port          = 0
    protocol         = "-1"
    cidr_blocks      = ["0.0.0.0/0"]
    ipv6_cidr_blocks = ["::/0"]
    prefix_list_ids  = []
		security_groups = []
		self = false
  }
  ] 
}

resource "null_resource" "status" {
	provisioner "local-exec" {
		command = "aws ec2 wait instance-status-ok --instance-ids ${aws_instance.mydemo_server.id}"
	}
	depends_on = [
		aws_instance.mydemo_server
		]
}