launch configuration to launch template

.gitignore

@@ -3,3 +3,4 @@ aws/aws_simple/.terraform/modules/modules.json
 aws/aws_simple/terraform.tfstate.backup
 aws/aws_simple/terraform.tfstate
 aws/aws_simple/.terraform/providers/registry.terraform.io/hashicorp/aws/5.25.0/linux_amd64/terraform-provider-aws_v5.25.0_x5
+aws/aws_simple/.terraform.tfstate.lock.info

aws/aws_simple/modules/ec2/ec2-east/ec2-east.tf

@@ -1,55 +1,67 @@
 provider "aws" {
     region = "us-east-1"
 }
+
 # Create a security group for the EC2 instance
 resource "aws_security_group" "instance-east" {
     name_prefix = "instance-east-"
     vpc_id      = var.vpc_id_east_1
-
+    # HTTP access
     ingress {
         from_port   = 80
         to_port     = 80
         protocol    = "tcp"
         cidr_blocks = ["0.0.0.0/0"]
     }
-
+    # HTTPS access
     ingress {
         from_port   = 443
         to_port     = 443
         protocol    = "tcp"
         cidr_blocks = ["0.0.0.0/0"]
     }
+    # SSH access
+    ingress {
+        from_port   = 22
+        to_port     = 22
+        protocol    = "tcp"
+        cidr_blocks = ["0.0.0.0/0"]
+    }
 
     tags = {
         Name = "instance-security-group-east"
     }
 }
 
-# Define the Launch Configuration
-resource "aws_launch_configuration" "lc-east" {
-    name_prefix   = "lc-east-"
+# Define the Launch Template
+resource "aws_launch_template" "lt-east" {
+    name_prefix   = "lt-east-"
     image_id = "ami-0237a465e7f465b10" 
     instance_type = "t3.small"
-    security_groups = [
-        aws_security_group.instance-east.id
-    ]
-    user_data = file("${path.module}/user-data.sh")
-    root_block_device {
-        volume_size = 300
+    user_data = base64encode(file("${path.module}/user-data.sh"))
+    block_device_mappings {
+        device_name = "/dev/xvda"
+        ebs {
+            volume_size = 300
+        }
+    }
+    network_interfaces {
+        associate_public_ip_address = true
+        security_groups = [aws_security_group.instance-east.id]
     }
 }
 
 # Define the Auto Scaling Group
 resource "aws_autoscaling_group" "asg-east" {
     name_prefix                 = "asg-east-"
-    launch_configuration       = aws_launch_configuration.lc-east.id
-    depends_on = [ 
-        aws_launch_configuration.lc-east,
-    ]
+    launch_template {
+        id      = aws_launch_template.lt-east.id
+        version = "$Latest"
+    }
     vpc_zone_identifier         = [
         var.us_east_subnet_1_id,
         var.us_east_subnet_2_id,
-        var.us_east_subnet_3_id,
+        var.us_east_subnet_3_id
     ]
     min_size                    = var.min_size
     max_size                    = var.max_size
@@ -62,6 +74,11 @@ resource "aws_autoscaling_group" "asg-east" {
         value               = "asg-instance-east"
         propagate_at_launch = true
     }
+
+    depends_on = [
+        aws_security_group.instance-east,
+        aws_launch_template.lt-east
+    ]
 }
 
 data "aws_instances" "asg_instances-east" {

aws/aws_simple/modules/ec2/ec2-east/outputs.tf

@@ -1,4 +0,0 @@
-# output "public_ips" {
-#   description = "Public IP addresses of the instances in the Auto Scaling group"
-#   value       = [for i in data.aws_instances.asg_instances.ids : aws_instance[i].public_ip]
-# }

aws/aws_simple/modules/ec2/ec2-east/terraform.tfvars

@@ -1,2 +1,2 @@
-min_size = 1
+min_size = 3
 max_size = 10

aws/aws_simple/modules/ec2/ec2-west/ec2-west..tf

@@ -6,7 +6,7 @@ provider "aws" {
 resource "aws_security_group" "instance-west" {
     name_prefix = "instance-west-"
     vpc_id      = var.vpc_id_west_2
-
+    # HTTP access
     ingress {
         from_port   = 80
         to_port     = 80
@@ -14,6 +14,7 @@ resource "aws_security_group" "instance-west" {
         cidr_blocks = ["0.0.0.0/0"]
     }
 
+    # HTTPS access
     ingress {
         from_port   = 443
         to_port     = 443
@@ -21,32 +22,45 @@ resource "aws_security_group" "instance-west" {
         cidr_blocks = ["0.0.0.0/0"]
     }
 
+    # SSH access
+    ingress {
+        from_port   = 22
+        to_port     = 22
+        protocol    = "tcp"
+        cidr_blocks = ["0.0.0.0/0"]
+    }
+
     tags = {
         Name = "instance-security-group-west"
     }
 }
 
-# Define the Launch Configuration
-resource "aws_launch_configuration" "lc-west" {
-    name_prefix   = "lc-west"
+# Define the Launch Template
+resource "aws_launch_template" "lt-west" {
+    name_prefix   = "lt-west"
     image_id = "ami-03bf1eb153d14803f" 
     instance_type = "t3.small"
-    security_groups = [
-        aws_security_group.instance-west.id
-    ]
-    user_data = file("${path.module}/user-data.sh")
-    root_block_device {
-        volume_size = 300
+    user_data = base64encode(file("${path.module}/user-data.sh"))
+    block_device_mappings {
+        device_name = "/dev/xvda"
+        ebs {
+            volume_size = 300
+        }
+    }
+    network_interfaces {
+        associate_public_ip_address = true
+        security_groups = [aws_security_group.instance-west.id]
+
     }
 }
 
 # Define the Auto Scaling Group
 resource "aws_autoscaling_group" "asg-west" {
     name_prefix                 = "asg-west-"
-    launch_configuration       = aws_launch_configuration.lc-west.id
-    depends_on = [ 
-        aws_launch_configuration.lc-west,
-    ]
+    launch_template {
+        id      = aws_launch_template.lt-west.id
+        version = "$Latest"
+    }    
     vpc_zone_identifier         = [
         var.us_west_subnet_1_id,
         var.us_west_subnet_2_id,
@@ -63,6 +77,10 @@ resource "aws_autoscaling_group" "asg-west" {
         value               = "asg-instance-west"
         propagate_at_launch = true
     }
+    depends_on = [
+        aws_security_group.instance-west,
+        aws_launch_template.lt-west
+    ]
 }
 
 data "aws_instances" "asg_instances-west" {

aws/aws_simple/modules/ec2/ec2-west/terraform.tfvars

@@ -1,2 +1,2 @@
-min_size = 1
+min_size = 3
 max_size = 10

aws/aws_simple/modules/vpc/subnets/us-east/subnets-east.tf

@@ -6,6 +6,7 @@ resource "aws_subnet" "us_east_subnet_1" {
     vpc_id     = var.vpc_id_east_1
     cidr_block = var.us_east_subnet_1_cidr_block
     availability_zone = var.us_east_subnet_1_az
+    map_public_ip_on_launch = true
     tags = {
         Name = "${var.region}_${var.us_east_subnet_1_az}_subnet"
     }
@@ -15,6 +16,7 @@ resource "aws_subnet" "us_east_subnet_2" {
     vpc_id     = var.vpc_id_east_1
     cidr_block = var.us_east_subnet_2_cidr_block
     availability_zone = var.us_east_subnet_2_az
+    map_public_ip_on_launch = true
     tags = {
         Name = "${var.region}_${var.us_east_subnet_2_az}_subnet"
     }
@@ -24,6 +26,7 @@ resource "aws_subnet" "us_east_subnet_3" {
     vpc_id     = var.vpc_id_east_1
     cidr_block = var.us_east_subnet_3_cidr_block
     availability_zone = var.us_east_subnet_3_az
+    map_public_ip_on_launch = true
     tags = {
         Name = "${var.region}_${var.us_east_subnet_3_az}_subnet"
     }

aws/aws_simple/modules/vpc/subnets/us-west/subnets-west.tf

@@ -9,6 +9,7 @@ resource "aws_subnet" "us_west_subnet_1" {
     tags = {
         Name = "${var.region}_${var.us_west_subnet_1_az}_subnet"
     }
+    map_public_ip_on_launch = true
     depends_on = [var.vpc_id_west_2]
 }
 
@@ -19,6 +20,7 @@ resource "aws_subnet" "us_west_subnet_2" {
     tags = {
         Name = "${var.region}_${var.us_west_subnet_2_az}_subnet"
     }
+    map_public_ip_on_launch = true
     depends_on = [var.vpc_id_west_2]
 }
 
@@ -29,5 +31,6 @@ resource "aws_subnet" "us_west_subnet_3" {
     tags = {
         Name = "${var.region}_${var.us_west_subnet_3_az}_subnet"
     }
+    map_public_ip_on_launch = true
     depends_on = [var.vpc_id_west_2]
 }