add prefix/suffix and disk size

main.tf

@@ -60,7 +60,7 @@ resource "local_file" "public_key" {
 }
 
 resource "aws_key_pair" "deployer" {
-  key_name   = "ubuntu_ssh_key"
+  key_name   = "${var.name_prefix}-key-${var.name_suffix}"
   public_key = tls_private_key.ssh_key.public_key_openssh
 }
 
@@ -130,18 +130,28 @@ data "aws_ami" "ubuntu" {
 
 resource "aws_instance" "ubuntu_instance" {
   ami                         = data.aws_ami.ubuntu.id
-  #  Ubuntu "ami-0a0e5d9c7acc336f1"
 #  ami                         = data.aws_ami.latest_ecs.ami   #  Amazon Linux
   instance_type               = var.instance_size
   subnet_id                   = aws_subnet.public_subnet.id
   vpc_security_group_ids      = [aws_security_group.allow_ssh_http_https.id]
   key_name                    = aws_key_pair.deployer.key_name
   associate_public_ip_address = true
+  name_prefix   = var.name_prefix
+  resource_tag  = var.name_suffix
 
   depends_on = [
     aws_security_group.allow_ssh_http_https,
     aws_internet_gateway.igw
   ]
 
+  lifecycle {
+    ignore_changes = [ami]
+  }
+
+  root_block_device {
+    volume_size           = var.disk_size
+    delete_on_termination = true
+  }
+
   user_data = var.user_data
 }

variables.tf

@@ -62,3 +62,8 @@ variable "name_suffix" {
   description = "The suffix for all your resources, suggest generating a unique value for each deployment"
   type        = string
 }
+
+variable "disk_size" {
+  description = "Size of instance disk in Gigabytes"
+  default = 10
+}