WIP Jenkins on AWS with Terraform

.infra/terraform/main.tf

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+# Create a VPC
+resource "aws_vpc" "main_vpc" {
+  cidr_block = "10.0.0.0/16"
+
+  tags = {
+    Name = "Main VPC"
+  }
+}
+
+# Create an Internet Gateway for the VPC
+resource "aws_internet_gateway" "igw" {
+  vpc_id = aws_vpc.main_vpc.id
+}
+
+# Create a Route Table
+resource "aws_route_table" "public_rt" {
+  vpc_id = aws_vpc.main_vpc.id
+
+  route {
+    cidr_block = "0.0.0.0/0"
+    gateway_id = aws_internet_gateway.igw.id
+  }
+
+  tags = {
+    Name = "Public Route Table"
+  }
+}
+
+# Associate the route table with the subnet
+resource "aws_route_table_association" "public_rt_assoc" {
+  subnet_id      = aws_subnet.public_subnet.id
+  route_table_id = aws_route_table.public_rt.id
+}
+
+resource "aws_subnet" "public_subnet" {
+  vpc_id                  = aws_vpc.main_vpc.id
+  cidr_block              = "10.0.1.0/24"  # Range of IP addresses for the subnet
+  map_public_ip_on_launch = true
+
+  tags = {
+    Name = "Public Subnet"
+  }
+}
+
+
+
+# Create a group of security rules for Jenkins
+resource "aws_security_group" "jenkins_sg" {
+  name        = "jenkins-sg"
+  description = "Security group for Jenkins instance"
+  vpc_id      = aws_vpc.main_vpc.id
+
+  # Permit incoming traffic on ports 80, 22, and 8080
+  ingress {
+    from_port   = 80
+    to_port     = 80
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  ingress {
+    from_port   = 22
+    to_port     = 22
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  ingress {
+    from_port   = 8080
+    to_port     = 8080
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  # Permit outgoing traffic to all destinations
+  egress {
+    from_port   = 0
+    to_port     = 0
+    protocol    = "-1"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+}
+
+# Create an EC2 instance for Jenkins
+resource "aws_instance" "jenkins_server" {
+  ami                   = "ami-0e54eba7c51c234f6"  # Amazon Linux 2 AMI or the AMI of your choice
+  instance_type         = var.instance_type
+  key_name              = var.key_name
+  subnet_id             = aws_subnet.public_subnet.id
+  vpc_security_group_ids = [aws_security_group.jenkins_sg.id]  # Use the security group created above
+
+  # Connect the initialization script to the instance
+  user_data = <<-EOF
+              #!/bin/bash
+              sudo yum update -y
+              sudo yum install -y java-11-amazon-corretto
+              sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
+              sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key
+              sudo yum install -y jenkins
+              sudo systemctl start jenkins
+              sudo systemctl enable jenkins
+              EOF
+
+  tags = {
+    Name = "Jenkins Server"
+  }
+}
+

.infra/terraform/outputs.tf

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+output "jenkins_public_ip" {
+  description = "Public IP address of the Jenkins instance"
+  value       = aws_instance.jenkins_server.public_ip
+}
+
+output "jenkins_url" {
+  description = "URL of the Jenkins instance"
+  value       = "http://${aws_instance.jenkins_server.public_ip}:8080"
+}

.infra/terraform/provider.tf

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+provider "aws" {
+  region = "us-east-1"  # Specify the region where the resources will be created
+}

.infra/terraform/variables.tf

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+variable "instance_type" {
+  default = "t2.micro"
+}
+
+variable "key_name" {
+  description = "SSH key name"
+  default     = "my-ssh-key"
+}
+
+variable "subnet_id" {
+  description = "Subnet ID where the instance will be created"
+  default     = ""
+}