AWS Mastery Tutorial

1. Global Infrastructure

AWS operates in physical locations globally to ensure low latency and high availability.

2. EC2, S3 & Networking

EC2: Elastic Compute Cloud

Launch virtual servers with pre-configured scripts using User Data.

#!/bin/bash
yum update -y
yum install -y httpd
systemctl start httpd
echo "Welcome to AWS Mastery" > /var/www/html/index.html

S3: Simple Storage Service

Object storage for files. Use Bucket Policies to manage access.

{
  "Version": "2012-10-17",
  "Statement": [{
    "Effect": "Allow",
    "Principal": "*",
    "Action": "s3:GetObject",
    "Resource": "arn:aws:s3:::your-bucket-name/*"
  }]
}

3. Lambda & CloudFormation

AWS Lambda: Serverless code execution triggered by events (like file uploads or API calls).

import json

def lambda_handler(event, context):
    return {
        'statusCode': 200,
        'body': json.dumps('Serverless success!')
    }

CloudFormation (IaC): Treat your infrastructure as code. Define your entire environment in YAML.

Resources:
  MyS3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: master-tutorial-bucket-2026

4. High-Fidelity Cost Engine

Estimate your monthly bill across major instance families and hidden data transfer costs.