54 refactor: 리소스 네이밍 정비 및 ECS Agent 문제 해결

component/ecr/lifecycle.tf

@@ -1,11 +1,11 @@
-resource "aws_ecr_lifecycle_policy" "app" {
-  repository = aws_ecr_repository.app.name
+resource "aws_ecr_lifecycle_policy" "shared_app_retention" {
+  repository = aws_ecr_repository.shared_app.name
 
   policy = jsonencode({
     rules = [
       {
         rulePriority = 1
-        description  = "Keep last 10 images"
+        description  = "Keep last 3 images"
         selection = {
           tagStatus   = "any"
           countType   = "imageCountMoreThan"

component/ecr/main.tf

@@ -1,4 +1,4 @@
-resource "aws_ecr_repository" "app" {
+resource "aws_ecr_repository" "shared_app" {
   name                 = "${var.environment}-app"
   image_tag_mutability = "MUTABLE"
 

component/ecr/outputs.tf

@@ -1,8 +1,8 @@
 output "repository_url" {
   description = "ECR repository URL"
-  value       = aws_ecr_repository.app.repository_url
+  value       = aws_ecr_repository.shared_app.repository_url
 }
 
 output "repository_name" {
-  value = aws_ecr_repository.app.name
+  value = aws_ecr_repository.shared_app.name
 }

component/ecs-ec2/autoscaling_group.tf

@@ -1,5 +1,5 @@
-resource "aws_autoscaling_group" "ecs" {
-  name                = "${var.environment}-ecs-asg"
+resource "aws_autoscaling_group" "cluster_ec2_shared_asg" {
+  name                = "${var.environment}-cluster-ec2-shared-asg"
   vpc_zone_identifier = var.public_subnet_ids
 
   min_size         = 1
@@ -10,13 +10,13 @@ resource "aws_autoscaling_group" "ecs" {
   health_check_grace_period = 240
 
   launch_template {
-    id      = aws_launch_template.ecs-launch-template.id
+    id      = aws_launch_template.cluster_ec2_shared_launch_template.id
     version = "$Latest"
   }
 
   tag {
     key                 = "Name"
-    value               = "${var.environment}-ecs-instance"
+    value               = "${var.environment}-cluster-ec2-shared-instance"
     propagate_at_launch = true
   }
 

component/ecs-ec2/capacity_provider.tf

@@ -1,8 +1,8 @@
-resource "aws_ecs_capacity_provider" "ecs" {
-  name = "${var.environment}-cp"
+resource "aws_ecs_capacity_provider" "cluster_ec2_shared" {
+  name = "${var.environment}-cluster-ec2-shared-cp"
 
   auto_scaling_group_provider {
-    auto_scaling_group_arn = aws_autoscaling_group.ecs.arn
+    auto_scaling_group_arn = aws_autoscaling_group.cluster_ec2_shared_asg.arn
 
     managed_scaling {
       status                    = "DISABLED" # sandbox: 1대 고정 (나중에 필요하면 ENABLED로)
@@ -15,12 +15,12 @@ resource "aws_ecs_capacity_provider" "ecs" {
   }
 }
 
-resource "aws_ecs_cluster_capacity_providers" "this" {
-  cluster_name       = aws_ecs_cluster.this.name
-  capacity_providers = [aws_ecs_capacity_provider.ecs.name]
+resource "aws_ecs_cluster_capacity_providers" "cluster_default_ec2" {
+  cluster_name       = aws_ecs_cluster.cluster_shared.name
+  capacity_providers = [aws_ecs_capacity_provider.cluster_ec2_shared.name]
 
   default_capacity_provider_strategy {
-    capacity_provider = aws_ecs_capacity_provider.ecs.name
+    capacity_provider = aws_ecs_capacity_provider.cluster_ec2_shared.name
     weight            = 1
     base              = 1
   }

component/ecs-ec2/cluster.tf

@@ -1,3 +1,3 @@
-resource "aws_ecs_cluster" "this" {
+resource "aws_ecs_cluster" "cluster_shared" {
   name = "${var.environment}-ecs-cluster"
 }

component/ecs-ec2/launch_template.tf

@@ -1,10 +1,9 @@
-# ECS Optimized AMI (Amazon Linux 2) 최신 ID
 data "aws_ssm_parameter" "ecs_ami" {
   name = "/aws/service/ecs/optimized-ami/amazon-linux-2/recommended/image_id"
 }
 
-resource "aws_launch_template" "ecs-launch-template" {
-  name_prefix   = "${var.environment}-ecs-launch-template"
+resource "aws_launch_template" "cluster_ec2_shared_launch_template" {
+  name_prefix   = "${var.environment}-cluster-ec2-shared-launch-template"
   image_id      = data.aws_ssm_parameter.ecs_ami.value
   instance_type = var.instance_type
 
@@ -15,13 +14,13 @@ resource "aws_launch_template" "ecs-launch-template" {
   vpc_security_group_ids = [aws_security_group.ecs_instance_sg.id]
 
   user_data = base64encode(templatefile("${path.module}/userdata.sh.tftpl", {
-    cluster_name = aws_ecs_cluster.this.name
+    cluster_name = aws_ecs_cluster.cluster_shared.name
   }))
 
   tag_specifications {
     resource_type = "instance"
     tags = {
-      Name        = "${var.environment}-ecs-instance"
+      Name        = "${var.environment}-cluster-ec2-shared-instance"
       Environment = var.environment
     }
   }

component/ecs-ec2/outputs.tf

@@ -1,11 +1,11 @@
 output "ecs_cluster_name" {
-  value = aws_ecs_cluster.this.name
+  value = aws_ecs_cluster.cluster_shared.name
 }
 
-output "ecs_service_name" {
-  value = aws_ecs_service.app.name
+output "schedule_vote_service_name" {
+  value = aws_ecs_service.schedule_vote.name
 }
 
-output "ecs_asg_name" {
-  value = aws_autoscaling_group.ecs.name
+output "cluster_ec2_shared_asg_name" {
+  value = aws_autoscaling_group.cluster_ec2_shared_asg.name
 }

component/ecs-ec2/security_group.tf

@@ -1,6 +1,6 @@
 resource "aws_security_group" "ecs_instance_sg" {
   name        = "${var.environment}-ecs-instance-sg"
-  description = "Security group for ECS EC2 instances"
+  description = "Security group for ECS EC2 instances (shared runtime)"
   vpc_id      = var.vpc_id
 
   # Outbound: 기본 허용

component/ecs-ec2/service.tf

@@ -1,11 +1,11 @@
-data "aws_ecs_task_definition" "app" {
+data "aws_ecs_task_definition" "schedule_vote" {
   task_definition = "${var.environment}-app"
 }
 
-resource "aws_ecs_service" "app" {
+resource "aws_ecs_service" "schedule_vote" {
   name            = "${var.environment}-app-svc"
-  cluster         = aws_ecs_cluster.this.id
-  task_definition = data.aws_ecs_task_definition.app.arn
+  cluster         = aws_ecs_cluster.cluster_shared.id
+  task_definition = data.aws_ecs_task_definition.schedule_vote.arn
   desired_count   = 1
 
   lifecycle {
@@ -17,14 +17,14 @@ resource "aws_ecs_service" "app" {
   health_check_grace_period_seconds = 300
 
   capacity_provider_strategy {
-    capacity_provider = aws_ecs_capacity_provider.ecs.name
+    capacity_provider = aws_ecs_capacity_provider.cluster_ec2_shared.name
     weight            = 1
   }
 
   deployment_minimum_healthy_percent = 100
   deployment_maximum_percent         = 200
 
   depends_on = [
-    aws_ecs_cluster_capacity_providers.this
+    aws_ecs_cluster_capacity_providers.cluster_default_ec2
   ]
 }

component/ecs-ec2/task_definition.tf

@@ -1,4 +1,4 @@
-resource "aws_cloudwatch_log_group" "app" {
+resource "aws_cloudwatch_log_group" "schedule_vote" {
   name              = "/ecs/${var.environment}/app"
   retention_in_days = 7
 }

component/ecs-ec2/userdata.sh.tftpl

@@ -1,8 +1,10 @@
 #!/bin/bash
 set -euo pipefail
 
-# ECS Cluster 등록
-echo "ECS_CLUSTER=${cluster_name}" >> /etc/ecs/ecs.config
+cat <<EOF > /etc/ecs/ecs.config
+ECS_CLUSTER=${cluster_name}
+ECS_AGENT_IMAGE=public.ecr.aws/ecs/amazon-ecs-agent:1.75.0
+EOF
 
-# (권장) 컨테이너 로그 드라이버 안정화 등을 위해 재시작
-systemctl enable --now ecs
+systemctl enable ecs
+systemctl restart ecs