added jenkins installation script

tf-ec2-with-modules/terraform-project/main.tf

@@ -43,4 +43,5 @@ module "ec2" {
   subnet_id         = module.subnet.subnet_id
   security_group_id = module.security_group.security_group_id
   key_name = var.key_name
+  user_data = file("${var.user_data}")
 }

tf-ec2-with-modules/terraform-project/modules/ec2/main.tf

@@ -4,6 +4,7 @@ resource "aws_instance" "main" {
   subnet_id     = var.subnet_id
   security_groups = [var.security_group_id]
   key_name = var.key_name
+  user_data = var.user_data
 
   tags = {
     Name = "MyEC2Instance"

tf-ec2-with-modules/terraform-project/modules/ec2/outputs.tf

@@ -1,3 +1,7 @@
 output "instance_id" {
   value = aws_instance.main.id
+}
+
+output "instance_public_ip" {
+  value = aws_instance.main.public_ip
 }

tf-ec2-with-modules/terraform-project/modules/ec2/variables.tf

@@ -21,4 +21,9 @@ variable "security_group_id" {
 variable "key_name" {
   description = "value of the key pair"
   type = string
+}
+
+variable "user_data" {
+  description = "filename of userdata file"
+  type = string
 }

tf-ec2-with-modules/terraform-project/modules/security-group/main.tf

@@ -2,17 +2,27 @@ resource "aws_security_group" "main" {
   vpc_id = var.vpc_id
 
   ingress {
-    from_port   = 22
-    to_port     = 22
+    description = "Allow Jenkins traffic"
+    from_port   = 8080
+    to_port     = 8080
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]  # Allows access from anywhere
+  }
+
+  ingress {
+    description = "Allow HTTP traffic"
+    from_port   = 80
+    to_port     = 80
     protocol    = "tcp"
-    cidr_blocks = ["0.0.0.0/0"]
+    cidr_blocks = ["0.0.0.0/0"]  # Allows access from anywhere
   }
 
-  egress {
-    from_port   = 0
-    to_port     = 0
-    protocol    = "-1"
-    cidr_blocks = ["0.0.0.0/0"]
+  ingress {
+    description = "Allow SSH traffic"
+    from_port   = 22
+    to_port     = 22
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]  # Adjust for more security if needed
   }
 
   tags = {

tf-ec2-with-modules/terraform-project/outputs.tf

@@ -1,3 +1,6 @@
 output "instance_id" {
   value = module.ec2.instance_id
+}
+output "instance_public_ip" {
+  value = module.ec2.instance_public_ip
 }

tf-ec2-with-modules/terraform-project/scripts/install-jenkins.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Update the package index
+sudo yum update -y
+
+# Install Java 11 (required for Jenkins)
+sudo amazon-linux-extras install java-openjdk11 -y
+
+# Enable the Jenkins repository
+sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
+
+# Import the Jenkins package signing key
+sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key
+
+# Install Jenkins
+sudo yum install jenkins -y
+
+# Start the Jenkins service
+sudo systemctl start jenkins
+
+# Enable Jenkins to start on system boot
+sudo systemctl enable jenkins
+
+# Print the Jenkins initial admin password
+echo "Jenkins initial admin password:"
+sudo cat /var/lib/jenkins/secrets/initialAdminPassword

tf-ec2-with-modules/terraform-project/variables.tf

@@ -5,3 +5,8 @@ variable "key_name" {
   default = "your-pem-key-name"
 }
 
+variable "user_data" {
+  description = "filename of userdata file"
+  type = string
+  default = "userdata.sh"
+}