AWS

🌐 What is AWS?

provides on-demand cloud services like servers, databases, storage, networking, machine learning, and more — all accessible over the internet.
Instead of buying and maintaining your own physical hardware, you rent what you need from AWS and scale as you go.

🧱 Key features:

Compute EC2 (virtual servers), Lambda (serverless) - Run applications and processes
Storage S3 (object storage), EBS, Glacier Store and back up data
Databases RDS, DynamoDB, Aurora Managed relational & NoSQL databases
Networking VPC, CloudFront, Route 53 Connect and distribute resources
Security IAM, KMS, Cognito Manage access and encryption

📁 Who Uses AWS?:

Startups, Enterprises, Government agencies, Developers & data scientists

✅ Benefits of AWS:

Pay-as-you-go pricing
Highly scalable
Global infrastructure
High availability & security
Wide range of services

📝 AWS - First steps

Step 1: Create an AWS Account: https://aws.amazon.com
Step 2: Fill information - enter your details
Step 3: Choose account typ (Personal or Professional)
Step 4: Enter billing info
Step 5: Verify your identity
Step 6: Choose support plan - Basic Support (free)
Step 7: Sign in to the AWS Management Console - ROOT Account
Step 8: Enable MFA
Step 9: Never use root for daily work

🧱 Create a separate AWS user/account with full admin access

AWS root user has unrestricted access - Billing card, etc.
Root user use only for critical tasks

Step 1: Sign in using the root user to AWS Console : https://aws.amazon.com
Step 2: Open IAM (Identity and Access Management)
Step 3: In the IAM dashboard, Users - Add users
Step 4: Assign Permissions - Attach policies directly - AdministratorAcces
Step 5: Sign In as the New Admin User - AWS will give you a direct sing-in URL.
Step 6: Enable MFA
Step 7: Never use root for daily work

Deploying Node.js on AWS EC2

Step 1: Create EC2 instance - I am using Ubuntu Free Tier <> Step 2: In security section - leave all settings and add PORT 3000 from your IP address
Step 3: Create KEY pair and download - .PEM or .PPK format
Step 4: Launch instance
Step 5: Wait for turning on instance and connect with your generated keypair
Step 6: Every instance has own public IP - use that for connection for example from Putty - Windows

Step 7: Setup EC2 Instance - Download and install updates

sudo apt update
sudo apt upgrade

Step 8: Install Node.js

curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
sudo apt-get install -y nodejs

Step 9: Upload your node.JS file for run to Ubuntu EC2 Instance

You can use tool: WinSCP - Windows
On Mac, Linux rsync - rsync -avz /path/to/local/file username@remote_host:/path/to/remote/destination/
-a: Archive mode (preserves permissions, timestamps, etc.)
-v: Verbose output (optional but helpful)
-z: Compress file during transfer (optional, good for large files)
/path/to/local/file: Path to the file you're uploading

Step 10: Run in terminal

node example.js

Step 10: Set your service like System Service - for running on background

sudo nano /etc/systemd/system/myapp.service

[Unit]
Description=Simple Node.js Servioce
After=network.target multi-user.target

[Service]
User=ubuntu
WorkingDirectory=/home/ubuntu/JS
ExecStart=/usr/bin/node /home/ubuntu/JS/example.js
Restart=on-failure
Environment=NODE_ENV=production
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=myapp

[Install]
WantedBy=multi-user.target

Step 11: Reload systemd and start your service

sudo systemctl daemon-reload
sudo systemctl enable myapp.service
sudo systemctl start myapp.service
sudo systemctl status myapp.service

If your Node.js app need DB you can install it very easy

sudo apt install mysql-server
sudo systemctl start mysql
sudo systemctl enable mysql
sudo mysql -u root

CREATE DATABASE my_app;
CREATE USER 'my_app_user'@'localhost' IDENTIFIED WITH mysql_native_password BY 'MyFirstPass123!';
GRANT ALL PRIVILEGES ON my_app.* TO 'my_app_user'@'localhost';