#cloud-config
package_update: true
package_upgrade: true

packages:
  - wget
  - unzip
  - curl
  - git
  - gnupg
  - software-properties-common

users:
  - name: terraform
    sudo: ALL=(ALL) NOPASSWD:ALL
    shell: /bin/bash
    groups: sudo

write_files:
  - path: /home/terraform/examples/main.tf
    content: |
      terraform {
        required_version = ">= 1.0"
        required_providers {
          aws = {
            source  = "hashicorp/aws"
            version = "~> 5.0"
          }
          local = {
            source  = "hashicorp/local"
            version = "~> 2.0"
          }
        }
      }
      
      # Configure the AWS Provider
      provider "aws" {
        region = var.aws_region
      }
      
      # Variables
      variable "aws_region" {
        description = "AWS region"
        type        = string
        default     = "us-west-2"
      }
      
      variable "instance_type" {
        description = "EC2 instance type"
        type        = string
        default     = "t3.micro"
      }
      
      # Data sources
      data "aws_ami" "ubuntu" {
        most_recent = true
        owners      = ["099720109477"] # Canonical
        
        filter {
          name   = "name"
          values = ["ubuntu/images/hvm-ssd/ubuntu-22.04-amd64-server-*"]
        }
      }
      
      # Resources
      resource "aws_vpc" "main" {
        cidr_block           = "10.0.0.0/16"
        enable_dns_hostnames = true
        enable_dns_support   = true
        
        tags = {
          Name = "terraform-vpc"
        }
      }
      
      resource "aws_subnet" "public" {
        vpc_id                  = aws_vpc.main.id
        cidr_block              = "10.0.1.0/24"
        availability_zone       = data.aws_availability_zones.available.names[0]
        map_public_ip_on_launch = true
        
        tags = {
          Name = "terraform-public-subnet"
        }
      }
      
      resource "aws_internet_gateway" "main" {
        vpc_id = aws_vpc.main.id
        
        tags = {
          Name = "terraform-igw"
        }
      }
      
      resource "aws_route_table" "public" {
        vpc_id = aws_vpc.main.id
        
        route {
          cidr_block = "0.0.0.0/0"
          gateway_id = aws_internet_gateway.main.id
        }
        
        tags = {
          Name = "terraform-public-rt"
        }
      }
      
      resource "aws_route_table_association" "public" {
        subnet_id      = aws_subnet.public.id
        route_table_id = aws_route_table.public.id
      }
      
      # Outputs
      output "vpc_id" {
        description = "VPC ID"
        value       = aws_vpc.main.id
      }
      
      output "subnet_id" {
        description = "Public subnet ID"
        value       = aws_subnet.public.id
      }
    owner: terraform:terraform
    permissions: '0644'

  - path: /home/terraform/examples/versions.tf
    content: |
      terraform {
        required_version = ">= 1.0"
      }
      
      data "aws_availability_zones" "available" {
        state = "available"
      }
    owner: terraform:terraform
    permissions: '0644'

  - path: /home/terraform/.terraformrc
    content: |
      plugin_cache_dir   = "$HOME/.terraform.d/plugin-cache"
      disable_checkpoint = true
    owner: terraform:terraform
    permissions: '0644'

  - path: /etc/bash_completion.d/terraform
    content: |
      complete -C /usr/local/bin/terraform terraform
    permissions: '0644'

runcmd:
  # Install Terraform
  - cd /tmp
  - wget https://releases.hashicorp.com/terraform/1.6.0/terraform_1.6.0_linux_amd64.zip
  - unzip terraform_1.6.0_linux_amd64.zip
  - mv terraform /usr/local/bin/
  - chmod +x /usr/local/bin/terraform
  
  # Install AWS CLI
  - curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
  - unzip awscliv2.zip
  - ./aws/install
  
  # Create directories
  - mkdir -p /home/terraform/.terraform.d/plugin-cache
  - mkdir -p /home/terraform/examples
  - mkdir -p /home/terraform/modules
  - chown -R terraform:terraform /home/terraform
  
  # Install Terraform docs generator
  - wget https://github.com/terraform-docs/terraform-docs/releases/download/v0.16.0/terraform-docs-v0.16.0-linux-amd64.tar.gz
  - tar -xzf terraform-docs-v0.16.0-linux-amd64.tar.gz
  - mv terraform-docs /usr/local/bin/
  - chmod +x /usr/local/bin/terraform-docs
  
  # Install tflint
  - curl -s https://raw.githubusercontent.com/terraform-linters/tflint/master/install_linux.sh | bash
  
  # Setup environment
  - echo 'export TF_PLUGIN_CACHE_DIR="$HOME/.terraform.d/plugin-cache"' >> /home/terraform/.bashrc
  - echo 'export TF_CLI_CONFIG_FILE="$HOME/.terraformrc"' >> /home/terraform/.bashrc
  - echo 'alias tf=terraform' >> /home/terraform/.bashrc
  
  # Initialize example configuration
  - cd /home/terraform/examples
  - sudo -u terraform terraform init
  - sudo -u terraform terraform validate
  
  # Display versions and help
  - terraform version
  - aws --version
  - terraform-docs version
  - tflint --version
  - echo "Terraform installation complete!"
  - echo "Example configuration available in /home/terraform/examples/"
  - echo "Run 'terraform plan' to see what would be created"