Complete AWS Guide: Cloud Computing to Website Deployment

Cloud Computing Fundamentals
Amazon EC2 Basics
AWS CLI Configuration
Storage Services (EBS, S3)
High Availability (ELB, Auto Scaling)
Monitoring and File Systems
Website Deployment

Cloud Computing Fundamentals

What is Cloud Computing?

Cloud computing provides on-demand computing resources over the internet with pay-as-you-go pricing. Key benefits include:

Scalability
Cost-effectiveness
Global deployment
Reduced maintenance
High availability

Service Models

IaaS (Infrastructure as a Service)
├── Raw computing resources
├── Example: EC2, EBS
└── User manages OS and applications

PaaS (Platform as a Service)
├── Development and deployment platform
├── Example: Elastic Beanstalk
└── User focuses on code

SaaS (Software as a Service)
├── Complete application
├── Example: Gmail
└── User consumes service

Amazon EC2 Basics

EC2 Overview

EC2 (Elastic Compute Cloud) provides resizable compute capacity. Key features:

Virtual servers (instances)
Multiple instance types
Various operating systems
Pay-per-use pricing

EC2 Quick Start

# 1. Launch Instance
aws ec2 run-instances \
    --image-id ami-12345678 \
    --instance-type t2.micro \
    --key-name MyKeyPair \
    --security-group-ids sg-12345678

# 2. Configure Security Group
aws ec2 create-security-group \
    --group-name MySecurityGroup \
    --description "Basic web security group"

aws ec2 authorize-security-group-ingress \
    --group-name MySecurityGroup \
    --protocol tcp \
    --port 80 \
    --cidr 0.0.0.0/0

Instance Types

General Purpose (t2, t3)
├── Balanced CPU/Memory
└── Ideal for web servers

Compute Optimized (c5, c6)
├── High CPU performance
└── For processing-heavy tasks

Memory Optimized (r5, r6)
├── Fast memory performance
└── For database applications

AWS CLI Configuration

Installation

# Linux
curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install

# Configure AWS CLI
aws configure
AWS Access Key ID: [YOUR_ACCESS_KEY]
AWS Secret Access Key: [YOUR_SECRET_KEY]
Default region name: [YOUR_REGION]
Default output format: json

Basic CLI Commands

# List EC2 instances
aws ec2 describe-instances

# Create key pair
aws ec2 create-key-pair --key-name MyKeyPair

# List S3 buckets
aws s3 ls

Storage Services

EBS (Elastic Block Store)

Creating and Attaching EBS Volume

# Create volume
aws ec2 create-volume \
    --size 100 \
    --availability-zone us-east-1a \
    --volume-type gp3

# Attach volume
aws ec2 attach-volume \
    --volume-id vol-12345678 \
    --instance-id i-12345678 \
    --device /dev/sdf

EBS Snapshots

# Create snapshot
aws ec2 create-snapshot \
    --volume-id vol-12345678 \
    --description "Daily backup"

# Copy snapshot to another region
aws ec2 copy-snapshot \
    --source-region us-east-1 \
    --source-snapshot-id snap-12345678 \
    --destination-region us-west-2

S3 (Simple Storage Service)

Bucket Operations

# Create bucket
aws s3 mb s3://my-unique-bucket-name

# Upload file
aws s3 cp myfile.txt s3://my-bucket/

# Configure static website hosting
aws s3 website s3://my-bucket/ \
    --index-document index.html \
    --error-document error.html

High Availability

ELB (Elastic Load Balancer)

Application Load Balancer Setup

# Create load balancer
aws elbv2 create-load-balancer \
    --name my-load-balancer \
    --subnets subnet-12345678 subnet-87654321 \
    --security-groups sg-12345678

# Create target group
aws elbv2 create-target-group \
    --name my-targets \
    --protocol HTTP \
    --port 80 \
    --vpc-id vpc-12345678

Auto Scaling

Auto Scaling Group Configuration

# Create launch template
aws ec2 create-launch-template \
    --launch-template-name WebServerTemplate \
    --version-description WebServerVersion1 \
    --launch-template-data '{
        "ImageId": "ami-12345678",
        "InstanceType": "t2.micro",
        "SecurityGroupIds": ["sg-12345678"]
    }'

# Create Auto Scaling group
aws autoscaling create-auto-scaling-group \
    --auto-scaling-group-name my-asg \
    --launch-template LaunchTemplateName=WebServerTemplate \
    --min-size 2 \
    --max-size 4 \
    --desired-capacity 2 \
    --vpc-zone-identifier "subnet-12345678,subnet-87654321"

Monitoring and File Systems

CloudWatch

Setting Up Monitoring

# Create alarm
aws cloudwatch put-metric-alarm \
    --alarm-name cpu-monitor \
    --alarm-description "CPU utilization monitor" \
    --metric-name CPUUtilization \
    --namespace AWS/EC2 \
    --statistic Average \
    --period 300 \
    --threshold 70 \
    --comparison-operator GreaterThanThreshold \
    --evaluation-periods 2

# Create dashboard
aws cloudwatch put-dashboard \
    --dashboard-name "WebServerMonitoring" \
    --dashboard-body file://dashboard.json

EFS (Elastic File System)

EFS Setup

# Create file system
aws efs create-file-system \
    --performance-mode generalPurpose \
    --throughput-mode bursting

# Create mount target
aws efs create-mount-target \
    --file-system-id fs-12345678 \
    --subnet-id subnet-12345678 \
    --security-group sg-12345678

Website Deployment

WordPress Deployment on EC2

1. Server Setup

#!/bin/bash
# Update system
sudo yum update -y

# Install LAMP stack
sudo yum install httpd mariadb-server php php-mysqlnd -y

# Start services
sudo systemctl start httpd
sudo systemctl start mariadb
sudo systemctl enable httpd
sudo systemctl enable mariadb

2. WordPress Installation

# Download WordPress
cd /tmp
wget https://wordpress.org/latest.tar.gz
tar -xzf latest.tar.gz

# Configure database
mysql -u root -p <<EOF
CREATE DATABASE wordpress;
CREATE USER 'wpuser'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON wordpress.* TO 'wpuser'@'localhost';
FLUSH PRIVILEGES;
EOF

# Move WordPress files
sudo cp -r wordpress/* /var/www/html/
sudo chown -R apache:apache /var/www/html/

3. WordPress Configuration

// wp-config.php
define('DB_NAME', 'wordpress');
define('DB_USER', 'wpuser');
define('DB_PASSWORD', 'password');
define('DB_HOST', 'localhost');

// Security keys
define('AUTH_KEY',         'unique-phrase-here');
define('SECURE_AUTH_KEY',  'unique-phrase-here');
define('LOGGED_IN_KEY',    'unique-phrase-here');
define('NONCE_KEY',        'unique-phrase-here');

Template Website on S3

1. Bucket Setup

# Create and configure bucket
aws s3 mb s3://my-template-website
aws s3 website s3://my-template-website \
    --index-document index.html \
    --error-document error.html

# Set bucket policy
aws s3api put-bucket-policy \
    --bucket my-template-website \
    --policy '{
        "Version": "2012-10-17",
        "Statement": [
            {
                "Sid": "PublicReadGetObject",
                "Effect": "Allow",
                "Principal": "*",
                "Action": "s3:GetObject",
                "Resource": "arn:aws:s3:::my-template-website/*"
            }
        ]
    }'

2. Website Deployment

# Download template
wget https://templatemo.com/tm-zip/[template-number]/templatemo_[template-number].zip
unzip templatemo_[template-number].zip

# Upload to S3
aws s3 sync ./template/ s3://my-template-website/

Integration and Security

1. Domain Configuration

# Create Route 53 record
aws route53 change-resource-record-sets \
    --hosted-zone-id ZXXXXXXXXXXXXX \
    --change-batch '{
        "Changes": [{
            "Action": "CREATE",
            "ResourceRecordSet": {
                "Name": "www.example.com",
                "Type": "A",
                "AliasTarget": {
                    "HostedZoneId": "Z2FDTNDATAQYW2",
                    "DNSName": "s3-website-us-east-1.amazonaws.com",
                    "EvaluateTargetHealth": false
                }
            }
        }]
    }'

2. SSL Certificate

# Request certificate
aws acm request-certificate \
    --domain-name www.example.com \
    --validation-method DNS

# Add to CloudFront distribution
aws cloudfront create-distribution \
    --origin-domain-name my-template-website.s3.amazonaws.com \
    --default-root-object index.html

3. Backup Configuration

# Create backup script
#!/bin/bash
TIMESTAMP=$(date +%Y%m%d_%H%M%S)

# Backup WordPress
aws s3 sync /var/www/html/ s3://backup-bucket/wordpress/$TIMESTAMP/
mysqldump wordpress > wp_backup_$TIMESTAMP.sql
aws s3 cp wp_backup_$TIMESTAMP.sql s3://backup-bucket/database/

# Backup template website
aws s3 sync s3://my-template-website/ s3://backup-bucket/template/$TIMESTAMP/

Monitoring Setup

1. CloudWatch Alarms

# CPU utilization alarm
aws cloudwatch put-metric-alarm \
    --alarm-name high-cpu \
    --alarm-description "CPU high utilization" \
    --metric-name CPUUtilization \
    --namespace AWS/EC2 \
    --statistic Average \
    --period 300 \
    --threshold 80 \
    --comparison-operator GreaterThanThreshold \
    --evaluation-periods 2 \
    --alarm-actions arn:aws:sns:region:account-id:topic-name

# Storage alarm
aws cloudwatch put-metric-alarm \
    --alarm-name storage-space \
    --alarm-description "Low storage space" \
    --metric-name DiskSpaceUtilization \
    --namespace System/Linux \
    --statistic Average \
    --period 300 \
    --threshold 85 \
    --comparison-operator GreaterThanThreshold \
    --evaluation-periods 1

2. Logging Configuration

# Install CloudWatch agent
sudo yum install amazon-cloudwatch-agent -y

# Configure agent
cat > /opt/aws/amazon-cloudwatch-agent/bin/config.json <<EOF
{
    "logs": {
        "logs_collected": {
            "files": {
                "collect_list": [
                    {
                        "file_path": "/var/log/httpd/access_log",
                        "log_group_name": "/aws/ec2/wordpress/access",
                        "log_stream_name": "{instance_id}"
                    },
                    {
                        "file_path": "/var/log/httpd/error_log",
                        "log_group_name": "/aws/ec2/wordpress/error",
                        "log_stream_name": "{instance_id}"
                    }
                ]
            }
        }
    }
}
EOF

Maintenance Tasks

Daily Checks

#!/bin/bash
# Check system status
systemctl status httpd
systemctl status mariadb

# Check disk space
df -h

# Check logs
tail -n 100 /var/log/httpd/error_log

# Verify backups
aws s3 ls s3://backup-bucket/wordpress/$(date +%Y%m%d)/

Weekly Tasks

#!/bin/bash
# Update system
yum update -y

# Optimize database
mysqlcheck -o wordpress -u root -p

# Rotate logs
logrotate -f /etc/logrotate.d/httpd

# Clean temporary files
find /tmp -type f -atime +7 -delete

This comprehensive guide covers all major aspects of AWS services and website hosting. Each section provides practical, step-by-step instructions that can be followed sequentially or referenced as needed.