Write a Bash script to perform these instruction:1. Infrastructure Setup 1.1. EC2 Instance Launch Proper launch of EC2 instances with Amazon Linux, Ubuntu, and CentOS.Configuration of instance attributes such as instance type, security groups, and key pairs.1.2. Security Measures Appropriate configuration of security groups to ensure optimal security measures.Proper setup of key pairs for secure remote access.2. Remote Execution and Deployment (30 points):2.1. Script Upload (10 points):Successful upload of the enhanced script to a centralised server.Secure handling of the script to prevent unauthorizedaccess.2.2. Remote Execution (10 points):Proper execution of the script on each instance remotelyHandling of dependencies and adjustments for different distributions.2.3. Apache Deployment (5 points):Successful deployment of the Apache web server oneach instance.Verification of the Apache service status.2.4. Sample Web Application Deployment (5 points):Successful deployment of a sample web application oneach instance.Verification of web application accessibility.

Here is a basic example of a Bash script that could be used to perform the tasks you've described. Please note that this is a simplified version and you may need to adjust it according to your specific needs.

#!/bin/bash

# 1. Infrastructure Setup
# 1.1. EC2 Instance Launch
aws ec2 run-instances --image-id ami-abc12345 --count 1 --instance-type t2.micro --key-name MyKeyPair --security-groups MySecurityGroup

# 1.2. Security Measures
aws ec2 create-security-group --group-name MySecurityGroup --description "My security group"
aws ec2 authorize-security-group-ingress --group-name MySecurityGroup --protocol tcp --port 22 --cidr 0.0.0.0/0

# 2. Remote Execution and Deployment
# 2.1. Script Upload
scp -i MyKeyPair.pem MyScript.sh [email protected]:~

# 2.2. Remote Execution
ssh -i MyKeyPair.pem [email protected] 'bash -s' < MyScript.sh

# 2.3. Apache Deployment
ssh -i MyKeyPair.pem [email protected] 'sudo yum install -y httpd; sudo service httpd start; sudo chkconfig httpd on'

# 2.4. Sample Web Application Deployment
scp -i MyKeyPair.pem MyWebApp.zip [email protected]:~
ssh -i MyKeyPair.pem [email protected] 'unzip MyWebApp.zip -d /var/www/html/'

This script assumes that you have the AWS CLI installed and configured, and that you have a key pair and security group set up. It also assumes that you have a script (MyScript.sh) and a web application (MyWebApp.zip) in your current directory.

Please replace ami-abc12345, MyKeyPair, MySecurityGroup, ec2-1-2-3-4.compute-1.amazonaws.com, MyScript.sh, and MyWebApp.zip with your actual values.