asg.tf

data "template_file" "init" { 
  template = "${file("${path.module}/wordpress.sh")}" 
} 

#launch template

resource "aws_launch_template" "example" {
  name_prefix   = "example"
  image_id      = "${data.aws_ami.image.id}"
  instance_type = "c5.large"
  key_name = "${aws_key_pair.us-east-1-key.key_name}"
  vpc_security_group_ids = ["${aws_security_group.asg-sec-group.id}"]
  user_data = "${base64encode(data.template_file.init.rendered)}" 
}

resource "aws_autoscaling_group" "example" {
  availability_zones = [
    "${var.region}a",
    "${var.region}b",
    "${var.region}c",
  ]

  desired_capacity = "${var.desired_capacity}"
  max_size         = "${var.max_size}"
  min_size         = "${var.min_size}"

  mixed_instances_policy {
    launch_template {
      launch_template_specification {
        launch_template_id = "${aws_launch_template.example.id}"
      }

      override {
        instance_type     = "c4.large"
        weighted_capacity = "3"
      }

      override {
        instance_type     = "c3.large"
        weighted_capacity = "2"
      }
    }
  }
}

###Launch config##


# resource "aws_launch_configuration" "as_conf" { 
#     name = "web_config" 
#     image_id = "${data.aws_ami.image.id}" 
#     instance_type = "t2.micro" 
#     user_data = "${file("wordpress.sh")}" 
#     spot_price = "0.1" 
# } 


# resource "aws_autoscaling_group" "bar" {
#     name = "terraform-asg-example" 
#     launch_configuration = "${aws_launch_configuration.as_conf.name}" 


# availability_zones = [ 
#     "us-east-1a", 
#     "us-east-1b", 
#     "us-east-1c", 
#     ] 
#     min_size = 1 
#     max_size = 2 
#     lifecycle { 
#         create_before_destroy = true 
#     } 


# }