diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..78afb03
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,33 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/ubuntu
+{
+	"name": "terrafrom-dev-test",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/base:jammy",
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	"features": {
+        "ghcr.io/devcontainers/features/terraform:1": {},
+		"ghcr.io/dhoeric/features/tfsec:1":{},
+    },
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	"postCreateCommand": "echo 'use tfsec and tflint for better results'",
+
+	// Configure tool-specific properties.
+	"customizations": {
+        "vscode": {
+            "extensions": [
+                "hashicorp.terraform", 
+                "gitlens.gitlens"
+            ]
+    	}
+	}
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}
+
+
diff --git a/main.tf b/main.tf
index 510ad3f..10bac59 100644
--- a/main.tf
+++ b/main.tf
@@ -1,5 +1,5 @@
 provider "aws" {
-  region  = local.region
+  region = local.region
 }
 
 locals {
@@ -9,13 +9,11 @@ locals {
 
 ### create a key pair
 module "key_pair" {
-  source = "terraform-aws-modules/key-pair/aws"
-
+  source             = "terraform-aws-modules/key-pair/aws"
   key_name           = "${local.name}-test-key"
   create_private_key = true
 }
 
-
 ### create a vpc
 module "vpc" {
   source  = "terraform-aws-modules/vpc/aws"
@@ -45,25 +43,23 @@ module "vpc" {
 module "web_server_sg" {
   source              = "terraform-aws-modules/security-group/aws//modules/http-80"
   name                = "${local.name}-web-server-sg"
-  description =  "Security group for web server of ${local.name}"
+  description         = "Security group for web server of ${local.name}"
   vpc_id              = module.vpc.vpc_id
   ingress_cidr_blocks = ["0.0.0.0/0"]
   ingress_rules       = ["http-80-tcp", "https-443-tcp", "ssh-tcp"]
 }
 
-
-
 ### create an ec2 instance
 module "ec2_instance" {
   source = "terraform-aws-modules/ec2-instance/aws"
-  name = "${local.name}-web-server"
+  name   = "${local.name}-web-server"
 
   instance_type          = "t2.micro"
   key_name               = module.key_pair.key_pair_name
   monitoring             = true
-  vpc_security_group_ids = [ module.web_server_sg.security_group_id ]
+  vpc_security_group_ids = [module.web_server_sg.security_group_id]
   subnet_id              = module.vpc.public_subnets[0]
-  user_data = file("userdata.sh")
+  user_data              = file("userdata.sh")
 
   tags = {
     Terraform   = "true"