Add complete SACC v4 infrastructure project

- Terraform modules: VPC, EC2, RDS, S3, CloudFront, Route53, Lambda, IAM, Security Groups
- Ansible playbooks for server configuration
- Scripts: create-test-environment.sh, destroy-test-environment.sh, validate-environment.sh
- Documentation: README, QUICKSTART, AGENTS
- Jenkins pipeline for automated deployment
- Jenkins pipeline for environment destruction

terraform/modules/ec2/main.tf

@@ -0,0 +1,42 @@
+variable "ami_id" {}
+variable "instance_type" { default = "t3.small" }
+variable "subnet_id" {}
+variable "security_group_ids" { type = list(string) }
+variable "key_name" {}
+variable "environment" {}
+variable "associate_public_ip" { default = true }
+variable "user_data" { default = "" }
+variable "iam_instance_profile" { default = "" }
+
+resource "aws_instance" "main" {
+  ami                    = var.ami_id
+  instance_type          = var.instance_type
+  subnet_id              = var.subnet_id
+  vpc_security_group_ids = var.security_group_ids
+  key_name               = var.key_name
+  associate_public_ip_address = var.associate_public_ip
+  user_data              = var.user_data
+  iam_instance_profile   = var.iam_instance_profile
+  
+  root_block_device {
+    volume_size           = 8
+    volume_type           = "gp2"
+    encrypted             = true
+    delete_on_termination = true
+  }
+  
+  tags = {
+    Name        = "sacc4-ec2-${var.environment}"
+    Environment = var.environment
+  }
+}
+
+resource "aws_eip" "main" {
+  instance = aws_instance.main.id
+  domain   = "vpc"
+  tags     = { Name = "sacc4-eip-${var.environment}" }
+}
+
+output "instance_id" { value = aws_instance.main.id }
+output "public_ip" { value = aws_eip.main.public_ip }
+output "private_ip" { value = aws_instance.main.private_ip }