Lab Information
The Nautilus DevOps team is strategically planning the migration of a portion of their infrastructure to the AWS cloud. Acknowledging the magnitude of this endeavor, they have chosen to tackle the migration incrementally rather than as a single, massive transition. Their approach involves creating Virtual Private Clouds (VPCs) as the initial step, as they will be provisioning various services under different VPCs.
For this task, create a VPC named datacenter-vpc in the us-east-1 region with the Amazon-provided IPv6 CIDR block using terraform.
The Terraform working directory is /home/bob/terraform. Create the main.tf file (do not create a different .tf file) to accomplish this task.
Note: Right-click under the EXPLORER section in VS Code and select Open in Integrated Terminal to launch the terminal.
Lab Solutions
Create main.tf
# main.tf
terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 5.0"
}
}
}
provider "aws" {
region = "us-east-1"
}
resource "aws_vpc" "datacenter_vpc" {
cidr_block = "10.0.0.0/16"
assign_generated_ipv6_cidr_block = true
enable_dns_hostnames = true
enable_dns_support = true
tags = {
Name = "datacenter-vpc"
}
}
This configuration:
Provider Configuration: Sets up the AWS provider for the us-east-1 region as required.
VPC Resource: Creates the datacenter-vpc with:
IPv4 CIDR block: 10.0.0.0/16 (required as a base VPC)
Amazon-provided IPv6 CIDR: Enabled via assign_generated_ipv6_cidr_block = true
DNS hostnames enabled: Allows instances to receive DNS hostnames
DNS support enabled: Enables DNS resolution within the VPC
Proper tagging: Name tag set to datacenter-vpc
Key Points:
The assign_generated_ipv6_cidr_block = true parameter is what requests an Amazon-provided IPv6 CIDR block for the VPC
AWS automatically assigns an IPv6 CIDR block from Amazon's pool of IPv6 addresses
You still need to provide an IPv4 CIDR block as it's required for VPC creation
The IPv6 CIDR block will be automatically generated and associated by AWS
To deploy this configuration:
Navigate to the Terraform directory:
cd /home/bob/terraform
Initialize Terraform:
terraform init
Plan the deployment to verify the configuration:
terraform plan
Apply the configuration:
terraform apply
Then type yes when prompted to confirm the creation of the VPC.
The VPC will be created in the us-east-1 region with:
Name: datacenter-vpc
IPv4 CIDR: 10.0.0.0/16
Amazon-provided IPv6 CIDR block (automatically assigned)
Region: us-east-1
This dual-stack VPC (supporting both IPv4 and IPv6) will provide the Nautilus DevOps team with modern networking capabilities for their cloud migration strategy.
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