Terraform 0.12 (#20)

* Terraform 0.12

demo-16/autoscaling.tf

@@ -1,28 +1,30 @@
 resource "aws_launch_configuration" "example-launchconfig" {
-  name_prefix          = "example-launchconfig"
-  image_id             = "${lookup(var.AMIS, var.AWS_REGION)}"
-  instance_type        = "t2.micro"
-  key_name             = "${aws_key_pair.mykeypair.key_name}"
-  security_groups      = ["${aws_security_group.myinstance.id}"]
-  user_data            = "#!/bin/bash\napt-get update\napt-get -y install nginx\nMYIP=`ifconfig | grep 'addr:10' | awk '{ print $2 }' | cut -d ':' -f2`\necho 'this is: '$MYIP > /var/www/html/index.html"
-  lifecycle              { create_before_destroy = true }
-}
-
-resource "aws_autoscaling_group" "example-autoscaling" {
-  name                 = "example-autoscaling"
-  vpc_zone_identifier  = ["${aws_subnet.main-public-1.id}", "${aws_subnet.main-public-2.id}"]
-  launch_configuration = "${aws_launch_configuration.example-launchconfig.name}"
-  min_size             = 2
-  max_size             = 2
-  health_check_grace_period = 300
-  health_check_type = "ELB"
-  load_balancers = ["${aws_elb.my-elb.name}"]
-  force_delete = true
-
-  tag {
-      key = "Name"
-      value = "ec2 instance"
-      propagate_at_launch = true
+  name_prefix     = "example-launchconfig"
+  image_id        = var.AMIS[var.AWS_REGION]
+  instance_type   = "t2.micro"
+  key_name        = aws_key_pair.mykeypair.key_name
+  security_groups = [aws_security_group.myinstance.id]
+  user_data       = "#!/bin/bash\napt-get update\napt-get -y install nginx\nMYIP=`ifconfig | grep 'addr:10' | awk '{ print $2 }' | cut -d ':' -f2`\necho 'this is: '$MYIP > /var/www/html/index.html"
+  lifecycle {
+    create_before_destroy = true
+  }
+}
+
+resource "aws_autoscaling_group" "example-autoscaling" {
+  name                      = "example-autoscaling"
+  vpc_zone_identifier       = [aws_subnet.main-public-1.id, aws_subnet.main-public-2.id]
+  launch_configuration      = aws_launch_configuration.example-launchconfig.name
+  min_size                  = 2
+  max_size                  = 2
+  health_check_grace_period = 300
+  health_check_type         = "ELB"
+  load_balancers            = [aws_elb.my-elb.name]
+  force_delete              = true
+
+  tag {
+    key                 = "Name"
+    value               = "ec2 instance"
+    propagate_at_launch = true
   }
 }