Lab
A Cloud Guru

Build Solutions across VPCs with Peering

A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses. In this lab, you will create a new VPC for your WordPress blog to run from. You will then create a VPC peering connection between the new VPC and an existing database VPC. By the end of this lab, you will understand how to create a new VPC from scratch, attach internet gateways, edit routing tables, and peer multiple VPCs together.

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Path Info

Level

Beginner

Duration

1h 0m

Published

Jun 30, 2021

Challenge

Create Web_VPC Subnets and Attach a New Internet Gateway

Using the AWS console, create the Web_VPC VPC with the 192.168.0.0/16 IPv4 CIDR block. Create the WebIG internet gateway. Modify the route table to attach the internet gateway to the Web_VPC.
Challenge

Create a Peering Connection

Create a peering connection called DBtoWeb. Peer the newly created Web_VPC with the DB_VPC. Ensure DB_VPC is the requester and Web_VPC is the accepter. Accept the request.

Challenge

Create an EC2 Instance and configure Wordpress

Launch a new public facing Ubuntu Server 20.04 LTS EC2 instance in the Web_VPC VPC using the provided bootstrap user data script.

#!/bin/bash
sudo apt update -y
sudo apt install php-curl php-gd php-mbstring php-xml php-xmlrpc php-soap php-intl php-zip perl mysql-server apache2 libapache2-mod-php php-mysql -y
wget https://github.com/ACloudGuru-Resources/course-aws-certified-solutions-architect-associate/raw/main/lab/5/wordpress.tar.gz
tar zxvf wordpress.tar.gz
cd wordpress
wget https://raw.githubusercontent.com/ACloudGuru-Resources/course-aws-certified-solutions-architect-associate/main/lab/5/000-default.conf
cp wp-config-sample.php wp-config.php
perl -pi -e "s/database_name_here/wordpress/g" wp-config.php
perl -pi -e "s/username_here/wordpress/g" wp-config.php
perl -pi -e "s/password_here/wordpress/g" wp-config.php
perl -i -pe'
  BEGIN {
    @chars = ("a" .. "z", "A" .. "Z", 0 .. 9);
    push @chars, split //, "!@#$%^&*()-_ []{}<>~\`+=,.;:/?|";
    sub salt { join "", map $chars[ rand @chars ], 1 .. 64 }
  }
  s/put your unique phrase here/salt()/ge
' wp-config.php
mkdir wp-content/uploads
chmod 775 wp-content/uploads
mv 000-default.conf /etc/apache2/sites-enabled/
mv /wordpress /var/www/
apache2ctl restart

Configure Wordpress by editing /var/www/wordpress/wp-config.php to point DB_HOST to the RDS database endpoint.

Challenge

Modify the RDS Security Groups to Allow Connections from the Web_VPC VPC

The RDS instance requires a security group modification to allow access from 192.168.0.0/16.
Challenge

Test WordPress

Visit the IP address of your EC2 instance in a web browser, and confirm WordPress is working correctly and communicating with the RDS instance via VPC peering.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.