instance.tf
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## Template for initial configuration bash script
data "template_file" "init" {
template = "${file("files/init.tpl")}"
count = "${length(var.instance_suffix)}"
vars {
dbendpoint="${aws_db_instance.db-instance.username}:${aws_db_instance.db-instance.password}@${aws_db_instance.db-instance.endpoint}\\/${aws_db_instance.db-instance.name}"
instancehostname="xpdays-${var.instance_suffix[count.index]}-${count.index}"
versiontag="${var.xpdays_versiontag}"
}
}
## Creating lauch configuration:
resource "aws_launch_configuration" "launch-xpdays" {
image_id = "${data.aws_ami.xpdays-ami.id}"
instance_type = "${lookup(var.instance_type, var.environment)}"
iam_instance_profile = "${aws_iam_instance_profile.ec2-instance-profile.name}"
associate_public_ip_address = true
enable_monitoring = true
user_data = "${data.template_file.init.*.rendered[count.index]}"
lifecycle { create_before_destroy = true }
count = "${length(var.instance_suffix)}"
}
## Add Autoscaling group
resource "aws_autoscaling_group" "asg-xpdays" {
lifecycle { create_before_destroy = true }
name = "asg-${var.instance_suffix[count.index]}-${element(aws_launch_configuration.launch-xpdays.*.name, count.index)}"
desired_capacity = "${lookup(var.instance_count_xpdays_desired, var.environment)}"
max_size = "${lookup(var.instance_count_xpdays_max, var.environment)}"
min_size = "${lookup(var.instance_count_xpdays_min, var.environment)}"
health_check_grace_period = 300
health_check_type = "EC2"
launch_configuration = "${element(aws_launch_configuration.launch-xpdays.*.name, count.index)}"
vpc_zone_identifier = ["${list(aws_subnet.default_subnet.id)}"]
availability_zones = ["${lookup(var.default_subnet_availability_zone, var.environment)}"]
load_balancers = ["${module.m-elb-xpdays.elb_id}"]
wait_for_elb_capacity = "${lookup(var.instance_count_xpdays_min, var.environment)}"
enabled_metrics = "${var.asg_enabled_metrics}"
tag {
key = "Name"
value = "xpdays-${var.instance_suffix[count.index]}"
propagate_at_launch = true
}
count = "${length(var.instance_suffix)}"
}