diff --git a/nm-ecr/main.tf b/modules/ecr/main.tf
similarity index 60%
rename from nm-ecr/main.tf
rename to modules/ecr/main.tf
index e608eb3..57257d2 100644
--- a/nm-ecr/main.tf
+++ b/modules/ecr/main.tf
@@ -1,27 +1,20 @@
 //ecr make
-provider "aws" {
-    region = "ap-northeast-2"
-
-    #2.x버전의 AWS공급자 허용
-    version = "~> 2.0"
-  
-}
-
-resource "aws_ecr_repository" "foo" {
-  name                 = "demo-flask-backend"
+resource "aws_ecr_repository" "ecr" {
+  for_each = toset(var.names_list)
+  name                 = each.value
   image_tag_mutability = "MUTABLE"
   image_scanning_configuration {
     scan_on_push = true
   }
 }
 
-resource "aws_ecr_repository" "bar" {
-  name                 = "demo-frontend"
-  image_tag_mutability = "MUTABLE"
-  image_scanning_configuration {
-    scan_on_push = true
-  }
-}
+# resource "aws_ecr_repository" "bar" {
+#   name                 = "demo-frontend"
+#   image_tag_mutability = "MUTABLE"
+#   image_scanning_configuration {
+#     scan_on_push = true
+#   }
+# }
 # resource "null_resource" "null_for_ecr_get_login_password" {
 #   provisioner "local-exec" {
 #     command = <<EOF
diff --git a/modules/ecr/valiables.tf b/modules/ecr/valiables.tf
new file mode 100644
index 0000000..a2deaf8
--- /dev/null
+++ b/modules/ecr/valiables.tf
@@ -0,0 +1,9 @@
+variable "names_list" {
+  description = "name list"
+  type    = list(string)
+}
+#   default = [
+#     "web",
+#     "nginx",
+#     "mariadb",
+#   ]
diff --git a/modules/igw/main.tf b/modules/igw/main.tf
new file mode 100644
index 0000000..cf95d66
--- /dev/null
+++ b/modules/igw/main.tf
@@ -0,0 +1,7 @@
+resource "aws_internet_gateway" "gw" {
+  vpc_id = var.vpc_id
+
+  tags = {
+    Name = "main-igw"
+  }
+}
\ No newline at end of file
diff --git a/modules/igw/valiables.tf b/modules/igw/valiables.tf
new file mode 100644
index 0000000..ca81c1f
--- /dev/null
+++ b/modules/igw/valiables.tf
@@ -0,0 +1,4 @@
+variable "vpc_id" {
+    description = "set vpc id"
+    type = string
+}
\ No newline at end of file
diff --git a/modules/vpc-subnet/main.tf b/modules/vpc-subnet/main.tf
index e69de29..7d9e075 100644
--- a/modules/vpc-subnet/main.tf
+++ b/modules/vpc-subnet/main.tf
@@ -0,0 +1,15 @@
+resource "aws_subnet" "subnets" {
+    vpc_id     = var.vpc_id
+    # module.vpc_hq.vpc_hq_id
+    
+    for_each = var.subnet-az-list
+    availability_zone = each.value.name
+    cidr_block = each.value.cidr
+
+    map_public_ip_on_launch = true
+    
+    tags = {
+    Name = "${var.vpc_id}-${each.value.name}"
+    # Name = module.vpc_hq.vpcHq.id
+    }
+}
\ No newline at end of file
diff --git a/modules/vpc-subnet/outputs.tf b/modules/vpc-subnet/outputs.tf
new file mode 100644
index 0000000..e69de29
diff --git a/modules/vpc-subnet/valiables.tf b/modules/vpc-subnet/valiables.tf
new file mode 100644
index 0000000..b526809
--- /dev/null
+++ b/modules/vpc-subnet/valiables.tf
@@ -0,0 +1,29 @@
+variable "vpc_id" {
+    description = "set vpc id"
+    type = string
+}
+
+// reference | https://github.com/davidcsi/terraform/blob/master/healthchecks/main.tf
+variable "subnet-az-list" {
+    description = "Subnet available zone & cidr"
+    type = map(map(string))
+    # default = {
+    #     "zone-a" = {
+    #         name = "ap-northeast-2a"
+    #         cidr = "10.3.1.0/24"
+    #     }
+    #     "zone-b" = {
+    #         name = "ap-northeast-2b"
+    #         cidr = "10.3.2.0/24"
+    #     }
+    #     "zone-c" = {
+    #         name = "ap-northeast-2c"
+    #         cidr = "10.3.3.0/24"
+    #     }
+    #     "zone-d" = {
+    #         name = "ap-northeast-2d"
+    #         cidr = "10.3.4.0/24"
+    #     }
+    # }
+  
+}
\ No newline at end of file
diff --git a/modules/vpc/main.tf b/modules/vpc/main.tf
index 4285b96..15c0e7e 100644
--- a/modules/vpc/main.tf
+++ b/modules/vpc/main.tf
@@ -1,8 +1,13 @@
-resource "aws_vpc" "vpcHq" {
+resource "aws_vpc" "vpc-hq" {
     # cidr_block       = "10.3.0.0/16"
     cidr_block       = var.cidr_block
     // instance_tenancy = "default"
 
+    # 인스턴스에 public DNS가 표시되도록 하는 속성
+    enable_dns_hostnames = true
+    enable_dns_support   = true
+
+
     tags = {
     Name = "test"
     }
diff --git a/modules/vpc/outputs.tf b/modules/vpc/outputs.tf
index beaae64..fe5e8c0 100644
--- a/modules/vpc/outputs.tf
+++ b/modules/vpc/outputs.tf
@@ -1,5 +1,5 @@
 //modules-vpc-output
 output "vpc_hq_id" {
   description = "The name of vpc hq id"
-  value = aws_vpc.vpcHq.id
+  value = aws_vpc.vpc-hq.id
 }
\ No newline at end of file
diff --git a/modules/vpc/valiables.tf b/modules/vpc/valiables.tf
index d5567c0..b95191d 100644
--- a/modules/vpc/valiables.tf
+++ b/modules/vpc/valiables.tf
@@ -3,27 +3,3 @@ variable "cidr_block" {
     type = string
 }
 
-// reference | https://github.com/davidcsi/terraform/blob/master/healthchecks/main.tf
-variable "subnet-az-list" {
-    description = "Subnet available zone & cidr"
-    type = map(map(string))
-    default = {
-        "zone-a" = {
-            name = "ap-northeast-2a"
-            cidr = "10.3.1.0/24"
-        }
-        "zone-b" = {
-            name = "ap-northeast-2b"
-            cidr = "10.3.2.0/24"
-        }
-        "zone-c" = {
-            name = "ap-northeast-2c"
-            cidr = "10.3.3.0/24"
-        }
-        "zone-d" = {
-            name = "ap-northeast-2d"
-            cidr = "10.3.4.0/24"
-        }
-    }
-  
-}
\ No newline at end of file
diff --git a/nm-ecr/.terraform.lock.hcl b/nm-ecr/.terraform.lock.hcl
deleted file mode 100644
index f94b4fd..0000000
--- a/nm-ecr/.terraform.lock.hcl
+++ /dev/null
@@ -1,39 +0,0 @@
-# This file is maintained automatically by "terraform init".
-# Manual edits may be lost in future updates.
-
-provider "registry.terraform.io/hashicorp/aws" {
-  version     = "2.70.1"
-  constraints = "~> 2.0"
-  hashes = [
-    "h1:SQR8egOmFbwBHOSMzUYg/Mt4e0LsQe91ma9I2Ug3lmY=",
-    "zh:04137cdf128cf21dcd190bbba4d4bba43c7868c52ad646b0eaa54a8b8b8160a7",
-    "zh:30c9f956133a102b4a426d76dd3ef1a42332d9875261a06aa877409aa6b2b556",
-    "zh:3107a43647454a3d6d847fba6aa593650af0f6a353272c04450408af5f4d353a",
-    "zh:3f17285478313af822447b453fa4e37f30ef221f0b0e8f2e4655f1ac9f9de1a2",
-    "zh:5a626f7a3c4a9fea3bdfde63aedbf6eea73760f3b228f776f1132b61d00c7ff2",
-    "zh:6aafc9dd79b511b9e3d0ec49f7df1d1fd697c3c873d1d70a2be1a12475b50206",
-    "zh:6fb29b48ccc85f7e9dfde3867ce99d6d65fb76bea68c97d404fae431758a8f03",
-    "zh:c47be92e1edf2e8675c932030863536c1a79decf85b2baa4232e5936c5f7088f",
-    "zh:cd0a4b28c5e4b5092043803d17fd1d495ecb926c2688603c4cdab4c20f3a91f4",
-    "zh:fb0ff763cb5d7a696989e58e0e4b88b1faed2a62b9fb83f4f7c2400ad6fabb84",
-  ]
-}
-
-provider "registry.terraform.io/hashicorp/null" {
-  version = "3.2.1"
-  hashes = [
-    "h1:vUW21lLLsKlxtBf0QF7LKJreKxs0CM7YXGzqW1N/ODY=",
-    "zh:58ed64389620cc7b82f01332e27723856422820cfd302e304b5f6c3436fb9840",
-    "zh:62a5cc82c3b2ddef7ef3a6f2fedb7b9b3deff4ab7b414938b08e51d6e8be87cb",
-    "zh:63cff4de03af983175a7e37e52d4bd89d990be256b16b5c7f919aff5ad485aa5",
-    "zh:74cb22c6700e48486b7cabefa10b33b801dfcab56f1a6ac9b6624531f3d36ea3",
-    "zh:78d5eefdd9e494defcb3c68d282b8f96630502cac21d1ea161f53cfe9bb483b3",
-    "zh:79e553aff77f1cfa9012a2218b8238dd672ea5e1b2924775ac9ac24d2a75c238",
-    "zh:a1e06ddda0b5ac48f7e7c7d59e1ab5a4073bbcf876c73c0299e4610ed53859dc",
-    "zh:c37a97090f1a82222925d45d84483b2aa702ef7ab66532af6cbcfb567818b970",
-    "zh:e4453fbebf90c53ca3323a92e7ca0f9961427d2f0ce0d2b65523cc04d5d999c2",
-    "zh:e80a746921946d8b6761e77305b752ad188da60688cfd2059322875d363be5f5",
-    "zh:fbdb892d9822ed0e4cb60f2fedbdbb556e4da0d88d3b942ae963ed6ff091e48f",
-    "zh:fca01a623d90d0cad0843102f9b8b9fe0d3ff8244593bd817f126582b52dd694",
-  ]
-}
diff --git a/prod/main.tf b/prod/main.tf
index e4ef6fc..896df21 100644
--- a/prod/main.tf
+++ b/prod/main.tf
@@ -1,3 +1,5 @@
+// prod - main
+
 provider "aws" {
     region = "ap-northeast-2"
 
@@ -6,34 +8,47 @@ provider "aws" {
   
 }
 
+# module "vpc_hq" {
 module "vpc_hq" {
     source = "../modules/vpc"
 
-    cidr_block = var.cidr_block
+    cidr_block = "10.3.0.0/16"
     
 }
-# resource "aws_vpc" "vpcHq" {
-#     cidr_block       = "10.3.0.0/16"
-#     // instance_tenancy = "default"
 
-#     tags = {
-#     Name = "test"
-#     }
-# }
+module "vpc_igw" {
+    source = "../modules/igw"
+
+    vpc_id = module.vpc_hq.vpc_hq_id
+}
+
 module "subnet_list" {
-  
-}
-resource "aws_subnet" "subnets" {
-    vpc_id     = module.vpc_hq.vpc_hq_id
-    
-    for_each = var.subnet-az-list
-    availability_zone = each.value.name
-    cidr_block = each.value.cidr
+    source = "../modules/vpc-subnet"
+
+    vpc_id = module.vpc_hq.vpc_hq_id
+    subnet-az-list = {
+        "zone-a" = {
+            name = "ap-northeast-2a"
+            cidr = "10.3.1.0/24"
+        }
+        "zone-b" = {
+            name = "ap-northeast-2b"
+            cidr = "10.3.2.0/24"
+        }
+        "zone-c" = {
+            name = "ap-northeast-2c"
+            cidr = "10.3.3.0/24"
+        }
+        "zone-d" = {
+            name = "ap-northeast-2d"
+            cidr = "10.3.4.0/24"
+        }
+    }
+}
+
+module "ecr" {
+    source = "../modules/ecr"
+
+    names_list = ["web", "nginx", "mariadb"]
+}
 
-    map_public_ip_on_launch = true
-    
-    # tags = {
-    # # Name = "${each.value.name}"
-    # Name = module.vpc_hq.vpcHq.id
-    # }
-}
\ No newline at end of file
diff --git a/prod/outputs.tf b/prod/outputs.tf
index c6a2c9e..e69de29 100644
--- a/prod/outputs.tf
+++ b/prod/outputs.tf
@@ -1,6 +0,0 @@
-//main - output
-
-output "vpc_hq_id" {
-  description = "The name of vpc hq id"
-  value = aws_vpc.vpcHq.id
-}
\ No newline at end of file
diff --git a/prod/valiables.tf b/prod/valiables.tf
index dfadb04..00caba5 100644
--- a/prod/valiables.tf
+++ b/prod/valiables.tf
@@ -1,5 +1,5 @@
-variable "cidr_block" {
-    type = string
-    default = "10.3.0.0/16"
+# variable "cidr_block" {
+#     type = string
+#     default = "10.3.0.0/16"
   
-}
\ No newline at end of file
+# }
\ No newline at end of file