added ec2, network modules

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

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+# Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# Crash log files
+crash.log
+
+# Exclude all .tfvars files, which are likely to contain sensitive data, such as passwords
+*.tfvars
+
+# Ignore override files as they are usually used to override resources locally and should not be shared
+override.tf
+override.tf.json
+*_override.tf
+*_override.tf.json
+
+# Include .terraformrc and terraform.rc files as they are user-specific configuration files
+.terraformrc
+terraform.rc
+
+# Ignore any plan output files
+*.tfplan

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

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+provider "aws" {
+  region = "us-west-2"
+}
+
+module "vpc" {
+  source    = "./modules/vpc"
+  cidr_block = "10.0.0.0/16"
+}
+
+module "subnet" {
+  source                = "./modules/subnet"
+  vpc_id                = module.vpc.vpc_id
+  cidr_block            = "10.0.1.0/24"
+  availability_zone     = "us-west-2a"
+}
+
+module "security_group" {
+  source = "./modules/security-group"
+  vpc_id = module.vpc.vpc_id
+}
+
+
+data "aws_ami" "example" {
+  most_recent = true
+
+  filter {
+    name   = "name"
+    values = ["amzn2-ami-hvm-*-x86_64-gp2"]
+  }
+
+  filter {
+    name   = "virtualization-type"
+    values = ["hvm"]
+  }
+
+  owners = ["amazon"]
+}
+
+module "ec2" {
+  source            = "./modules/ec2"
+  ami               = data.aws_ami.example.id
+  instance_type     = "t2.micro"
+  subnet_id         = module.subnet.subnet_id
+  security_group_id = module.security_group.security_group_id
+  key_name = var.key_name
+}

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

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+resource "aws_instance" "main" {
+  ami           = var.ami
+  instance_type = var.instance_type
+  subnet_id     = var.subnet_id
+  security_groups = [var.security_group_id]
+  key_name = var.key_name
+
+  tags = {
+    Name = "MyEC2Instance"
+  }
+}

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

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+output "instance_id" {
+  value = aws_instance.main.id
+}

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

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+variable "ami" {
+  description = "The AMI ID for the EC2 instance"
+  type        = string
+}
+
+variable "instance_type" {
+  description = "The instance type for the EC2 instance"
+  type        = string
+}
+
+variable "subnet_id" {
+  description = "The ID of the subnet"
+  type        = string
+}
+
+variable "security_group_id" {
+  description = "The ID of the security group"
+  type        = string
+}
+
+variable "key_name" {
+  description = "value of the key pair"
+  type = string
+}

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

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+resource "aws_security_group" "main" {
+  vpc_id = var.vpc_id
+
+  ingress {
+    from_port   = 22
+    to_port     = 22
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  egress {
+    from_port   = 0
+    to_port     = 0
+    protocol    = "-1"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  tags = {
+    Name = "allow_ssh"
+  }
+}

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

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+output "security_group_id" {
+  value = aws_security_group.main.id
+}

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

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+variable "vpc_id" {
+  description = "The ID of the VPC"
+  type        = string
+}

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

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+resource "aws_subnet" "main" {
+  vpc_id            = var.vpc_id
+  cidr_block        = var.cidr_block
+  availability_zone = var.availability_zone
+  map_public_ip_on_launch = true
+}
+
+resource "aws_internet_gateway" "main" {
+  vpc_id = var.vpc_id
+}
+
+resource "aws_route_table" "public" {
+  vpc_id = var.vpc_id
+
+  route {
+    cidr_block = "0.0.0.0/0"
+    gateway_id = aws_internet_gateway.main.id
+  }
+}
+
+resource "aws_route_table_association" "public" {
+  subnet_id      = aws_subnet.main.id
+  route_table_id = aws_route_table.public.id
+}

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

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+output "subnet_id" {
+  value = aws_subnet.main.id
+}

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

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+variable "vpc_id" {
+  description = "The ID of the VPC"
+  type        = string
+}
+
+variable "cidr_block" {
+  description = "The CIDR block for the subnet"
+  type        = string
+}
+
+variable "availability_zone" {
+  description = "The availability zone for the subnet"
+  type        = string
+}

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

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+resource "aws_vpc" "main" {
+  cidr_block = var.cidr_block
+}

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

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+output "vpc_id" {
+  value = aws_vpc.main.id
+}

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

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+variable "cidr_block" {
+  description = "The CIDR block for the VPC"
+  type        = string
+}

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

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+output "instance_id" {
+  value = module.ec2.instance_id
+}

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

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+# Define any global variables if needed
+variable "key_name" {
+  description = "value of the key pair"
+  type = string
+  default = "your-pem-key-name"
+}
+