provider "aws" {
        access_key = "xxxxxxxxxxxxxx"
        secret_key = "yyyyyyyyyyyyyyyyyyyyyy"
        region = "us-west-2"
}

resource "aws_security_group" "myweb" {
        name = "web-node"
        description = "Web Security Group"

        ingress {
                from_port = 80
                to_port = 80
                protocol = "tcp"
                cidr_blocks = ["0.0.0.0/0"]
        }

        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" "myweb" {
        ami = "ami-7f43f307"
        instance_type = "t2.micro"
        key_name = "test"
        security_groups = ["${aws_security_group.myweb.name}"]
        tags {
         Name = "terraform-instance"
        }
}