How to Deploy AWS EC2 Instances into a Public Subnet on Amazon Internet Gateway Security Groups TCP

Let's make this description of how to deploy EC2 instances a little more entertaining with a screenplay:

[Scene opens with a cloud engineer standing in front of a whiteboard labeled "AWS EC2 Deployment"]

Narrator:
Launching an EC2 instance on AWS is like spinning up your own server in the cloud. You control everything from the operating system to the network it's connected to. Let's walk through the process of running one and the building blocks that make it work.

[Cut to: Engineer selecting options in the AWS Management Console]

Narrator:
It all begins in the AWS console. First, you choose an Amazon Machine Image — or AMI. This is your blueprint. It can be Amazon Linux, Ubuntu, Windows Server, or even a custom image with your favorite software pre-installed.

Next, you select the instance type. These define the virtual hardware — how many CPUs, how much memory, and what kind of networking performance your server will have. You can go lightweight for a personal website or high-powered for data processing and gaming servers.

Then comes the networking setup.

[Cut to: Whiteboard drawing of a VPC with subnets]

Narrator:
Every EC2 instance lives inside a Virtual Private Cloud, or VPC. Think of this as your own private section of the AWS network. Inside that VPC, you choose a subnet, which is just a smaller chunk of IP space. If you want your instance to be reachable from the internet, you place it in a public subnet.

But a subnet alone isn’t enough. You also need an Internet Gateway attached to your VPC. This acts like a front door, allowing internet traffic to come in and out. Your subnet must be linked to a route table that knows to send internet traffic through this gateway.

You’ll also assign the instance a public IP address. Without it, even with all the right networking, nobody can reach your instance from the outside world.

[Cut to: Engineer configuring security groups]

Narrator:
Security is a big deal. Before your instance is exposed, you set rules using a security group. Want to host a website? Open port eighty. Need to log in with SSH? Open port twenty-two. You control who gets in and how.

Once launched, the instance boots up, runs the software from your AMI, and starts serving traffic.

[Cut to: Graph showing traffic increase and multiple instances]

Narrator:
But what happens when one instance isn’t enough? That’s where Auto Scaling comes in.

With auto scaling, you define rules that say, “If CPU usage hits seventy percent, launch another instance.” AWS handles the rest. It launches identical copies based on a launch template you create. These instances use the same AMI, the same subnet settings, and the same security group.

You can scale out to handle high traffic, and scale back in when things calm down. That saves money and keeps your app fast.

[Cut to: Summary on whiteboard]

Narrator:
To recap:
You pick an AMI to define the software.
You choose an instance type to define the hardware.
You launch inside a VPC and a subnet.
You assign a public IP and attach an Internet Gateway.
You set up a security group to control access.
And with auto scaling, your EC2 fleet grows and shrinks automatically to match demand.

That’s how you run an EC2 instance — and how AWS helps it scale.

[Fade out with AWS logo and music]
Narrator:
Build smart. Build scalable. Build in the cloud with EC2.

Видео How to Deploy AWS EC2 Instances into a Public Subnet on Amazon Internet Gateway Security Groups TCP канала Cameron McKenzie