diff --git a/Jenkinsfile b/Jenkinsfile
index f69a2db..b64e943 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,5 +1,9 @@
 pipeline {
-    agent any
+    agent { label "vinod" }
+
+    triggers {
+        githubpush()
+    }
 
     parameters {
         booleanParam(name: 'autoApprove', defaultValue: false, description: 'Automatically run apply after generating plan?')
@@ -7,47 +11,83 @@ pipeline {
     }
 
     environment {
-        AWS_ACCESS_KEY_ID     = credentials('aws-access-key-id')
-        AWS_SECRET_ACCESS_KEY = credentials('aws-secret-access-key')
-        AWS_DEFAULT_REGION    = 'ap-south-1'
+        AWS_DEFAULT_REGION = 'us-east-1'
     }
 
     stages {
         stage('Checkout') {
             steps {
-                git branch: 'main', url: 'https://github.com/CodeSagarOfficial/jenkins-scripts.git'
+                git branch: 'main', url: 'https://github.com/ajaysingh3200/terraform-jenkins-pipeline.git', credentialsId: 'github-token'
             }
         }
         stage('Terraform init') {
             steps {
-                sh 'terraform init'
+                withCredentials([usernamePassword(
+                    credentialsId: 'aws-credentials',
+                    usernameVariable: 'AWS_ACCESS_KEY_ID',
+                    passwordVariable: 'AWS_SECRET_ACCESS_KEY'
+                )]) {
+                    sh 'terraform init'
+                }
+            }
+        }
+        stage('Terraform fmt') {
+            steps {
+                withCredentials([usernamePassword(
+                    credentialsId: 'aws-credentials',
+                    usernameVariable: 'AWS_ACCESS_KEY_ID',
+                    passwordVariable: 'AWS_SECRET_ACCESS_KEY'
+                )]) {
+                    sh 'terraform fmt'
+                }
+            }
+        }
+        stage('Terraform validate') {
+            steps {
+                withCredentials([usernamePassword(
+                    credentialsId: 'aws-credentials',
+                    usernameVariable: 'AWS_ACCESS_KEY_ID',
+                    passwordVariable: 'AWS_SECRET_ACCESS_KEY'
+                )]) {
+                    sh 'terraform validate'
+                }
             }
         }
         stage('Plan') {
             steps {
-                sh 'terraform plan -out tfplan'
-                sh 'terraform show -no-color tfplan > tfplan.txt'
+                withCredentials([usernamePassword(
+                    credentialsId: 'aws-credentials',
+                    usernameVariable: 'AWS_ACCESS_KEY_ID',
+                    passwordVariable: 'AWS_SECRET_ACCESS_KEY'
+                )]) {
+                    sh 'terraform plan -out tfplan'
+                    sh 'terraform show -no-color tfplan > tfplan.txt'
+                }
             }
         }
         stage('Apply / Destroy') {
             steps {
                 script {
-                    if (params.action == 'apply') {
-                        if (!params.autoApprove) {
-                            def plan = readFile 'tfplan.txt'
-                            input message: "Do you want to apply the plan?",
-                            parameters: [text(name: 'Plan', description: 'Please review the plan', defaultValue: plan)]
+                    withCredentials([usernamePassword(
+                        credentialsId: 'aws-credentials',
+                        usernameVariable: 'AWS_ACCESS_KEY_ID',
+                        passwordVariable: 'AWS_SECRET_ACCESS_KEY'
+                    )]) {
+                        if (params.action == 'apply') {
+                            if (!params.autoApprove) {
+                                def plan = readFile 'tfplan.txt'
+                                input message: "Do you want to apply the plan?",
+                                parameters: [text(name: 'Plan', description: 'Please review the plan', defaultValue: plan)]
+                            }
+                            sh 'terraform apply -input=false tfplan'
+                        } else if (params.action == 'destroy') {
+                            sh 'terraform destroy -auto-approve'
+                        } else {
+                            error "Invalid action selected. Please choose either 'apply' or 'destroy'."
                         }
-
-                        sh 'terraform ${action} -input=false tfplan'
-                    } else if (params.action == 'destroy') {
-                        sh 'terraform ${action} --auto-approve'
-                    } else {
-                        error "Invalid action selected. Please choose either 'apply' or 'destroy'."
                     }
                 }
             }
         }
-
     }
-}
\ No newline at end of file
+}
diff --git a/igw.tf b/igw.tf
new file mode 100644
index 0000000..906954a
--- /dev/null
+++ b/igw.tf
@@ -0,0 +1,9 @@
+# Internet Gateway
+
+resource "aws_internet_gateway" "main" {
+  vpc_id = aws_vpc.main.id
+
+  tags = {
+    Name = "main-internet-gateway"
+  }
+}
\ No newline at end of file
diff --git a/output.tf b/output.tf
index 5d746db..15de60a 100644
--- a/output.tf
+++ b/output.tf
@@ -6,4 +6,28 @@ output "public_ip" {
 output "instance_id" {
  value       = aws_instance.public_instance.id
  description = "Instance ID"
+}
+
+output "public_subnet_1_id" {
+  value       = aws_subnet.public-subnet-1.id
+  description = "ID of public subnet 1"
+}
+
+output "public_subnet_2_id" {
+  value       = aws_subnet.public-subnet-2.id
+  description = "ID of public subnet 2"
+}
+
+output "public_subnet_3_id" {
+  value       = aws_subnet.public-subnet-3.id
+  description = "ID of public subnet 3"
+}
+
+output "public_subnet_cidrs" {
+  value = [
+    aws_subnet.public-subnet-1.cidr_block,
+    aws_subnet.public-subnet-2.cidr_block,
+    aws_subnet.public-subnet-3.cidr_block
+  ]
+  description = "CIDR blocks of all public subnets"
 }
\ No newline at end of file
diff --git a/subnet.tf b/subnet.tf
new file mode 100644
index 0000000..b91fddf
--- /dev/null
+++ b/subnet.tf
@@ -0,0 +1,37 @@
+resource "aws_subnet" "public-subnet-1" {
+    vpc_id             = aws_vpc.main.id
+    cidr_block         = "10.0.1.0/24"
+    availability_zone   = "us-east-1a"
+    map_public_ip_on_launch = true
+
+    tags = {
+        Name = "public-subnet-1" 
+    }
+
+}
+
+resource "aws_subnet" "public-subnet-2" {
+    vpc_id                  = aws_vpc.main.id
+    cidr_block              = "10.0.2.0/24"
+    availability_zone       = "us-east-1b"
+    map_public_ip_on_launch = true
+
+    tags = {
+    Name = "public-subnet-2"
+   }
+
+}
+
+resource "aws_subnet" "public-subnet-3" {
+    vpc_id                  = aws_vpc.main.id
+    cidr_block              = "10.0.3.0/24"
+    availability_zone       = "us-east-1c"
+    map_public_ip_on_launch = true
+
+    tags = {
+    Name = "public-subnet-2"
+   }
+
+}
+
+
diff --git a/variables.tf b/variables.tf
index da7ee07..7e872b7 100644
--- a/variables.tf
+++ b/variables.tf
@@ -13,14 +13,14 @@ variable "aws_secret_key" {
 variable "aws_region" {
   description = "AWS region"
   type        = string
-  default     = "ap-south-1"
+  default     = "us-east-1"
 }
 
 
 variable "ami" {
    type        = string
    description = "Ubuntu AMI ID"
-   default     = "ami-0f5ee92e2d63afc18"
+   default     = "ami-0866a3c8686eaeeba"
 }
 
 variable "instance_type" {
diff --git a/vpc.tf b/vpc.tf
new file mode 100644
index 0000000..c7afa11
--- /dev/null
+++ b/vpc.tf
@@ -0,0 +1,7 @@
+resource "aws_vpc" "main" {
+    cidr_block = "10.0.0.0/16"
+
+    tags = {
+        name = "main"
+    }
+}
\ No newline at end of file