How to Create and Use Amazon Machine Images (AMI) 🖥️☁️

What is an AMI? 🤔

An Amazon Machine Image (AMI) is essentially a blueprint for your instances on Amazon Web Services (AWS). Think of it as a snapshot of your setup, which you can use to create multiple instances with the same configuration. This makes scaling your infrastructure super easy! 🌱✨

How to Create an AMI Image? 🛠️

Step 1: Create an Instance

1. Launch an Instance:
2. Configurations

• Name: webserver 🖥️
• Operating System: Ubuntu 🐧
• Key Pair: Select or create a key pair 🔑
• Security Group: Create a new security group named webserver 🔒
• Rules: Allow ports 22 (SSH) and 80 (HTTP) 🌐

3. Set Inbound Rules:

Edit inbound rules to allow HTTP traffic from anywhere. 🌍

4. Advanced Details:

Insert a Shell Script in user data while launching Instance📜

#!/bin/bash
sudo apt update
sudo apt install wget net-tools unzip figlet apache2 -y
sudo systemctl start apache2
sudo systemctl enable apache2
mkdir -p webfiles
cd webfiles
sudo wget https://www.tooplate.com/zip-templates/2118_chilling_cafe.zip  
sudo unzip -o 2118_chilling_cafe.zip
sudo rm -rf /var/www/html/*
sudo cp -r 2118_chilling_cafe/* /var/www/html/
cd ..
sudo rm -rf webfiles
sudo systemctl restart apache2
figlet done

5. Launch:

Once the instance is running, you should be able to see your website. 🎉

Step 2: Create the AMI Image

1. Go to Your Instance:

• Select the instance you just created. 🖱️
• Click on Actions > Image and templates > Create image. 🖼️

2. Configure the Image:

• Image Name: chilling cafe ☕
• Description: webserver 📝
• Tags: Add tags, e.g., Name: chilling cafe, Type: webserver. 🏷️

3. Create Image:

• Click Create Image and wait a few minutes for the process to complete. ⏳

You should now have an AMI snapshot of your instance! 📸

Using Your AMI to Launch a New Instance 🚀

1. Launch New Instance:

• Use the AMI you just created (chilling cafe) to launch a new instance. 📂
• Instance Name: webserver2 🖥️
• Operating System: Select Ubuntu from My AMIs. 🐧

2.Launch:

• Complete the launch process and you should see the same website as before. 🌐✨

Creating a Load Balancer ⚖️

Step 1: Create a Security Group for ELB

1. Security Group Name: ELB 🔐
2. Inbound Rules: Allow all traffic. 🌍

Step 2: Configure Webserver Security Group

1. Add Inbound Rule:

• Allow traffic from the ELB security group. 🔄

1. Name: elb ⚖️
2. Target Groups:

• Name: chilling cafe ☕
• Instances: Include your instances (webserver and webserver2). 🖥️🖥️
• Health Checks: Ensure targets are healthy. ✅

3.Network Mapping:

• Use at least three availability zones (e.g., us-east-1b, us-east-1c, us-east-1e). 📡

4.DNS Name:

• Once everything is set up and healthy, take the DNS name of your load balancer and place it in a new tab. You should see your website! 🌐🎉

Adding a CNAME Record in GoDaddy 🏷️🌐

Step 4: Link Your Domain Name

1.Log in to GoDaddy:

• Navigate to your domain management page. 🛠️
• Select your domain, bhargav.life. 🌐

2.Create a CNAME Record:

• Host: coffee ☕
• Value: Paste the DNS name of your ELB here. 🔗
• This will map coffee.bhargav.life to your load balancer. 🌍

3.Save Changes:

• Save the CNAME record and wait for DNS propagation. This can take a few minutes to a few hours. ⏳

Once propagated, you can access your website using coffee.bhargav.life. 🎉🌐

And there you have it! You’ve successfully created an AMI, used it to launch multiple instances, set up a load balancer to distribute traffic, and linked your custom domain. Happy cloud computing! ☁️🚀