Preparation steps

To ensure the lab runs smoothly, we need to prepare the environment beforehand, including the network (VPC), virtual servers (EC2), and configuring the notification application (Slack).

Specifically, the preparation steps include:

• Create VPC: Build a Virtual Private Cloud (VPC) to serve as the baseline network environment.
• Create Security Group: Set up a virtual firewall to control access to the servers.
• Create EC2: Initialize virtual servers (EC2 instances) as targets to test the auto start/stop features.
• Configure Slack Incoming Webhooks: Configure a Slack App to receive status notifications whenever an EC2 instance is started or stopped.