Deploying Applications on AWS EC2 (Ubuntu & Windows)

Let’s start.

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📌 PART 1: Launching an EC2 Instance (Ubuntu)

1️⃣ Open EC2 Dashboard

• Login to AWS Console

• Go to Services → EC2

• Click Launch Instances

2️⃣ Configure Instance Details

• Name: ubuntu-production / ubuntu-staging etc.

• AMI:
  ✔ Ubuntu Server 22.04 LTS (recommended)

• Instance type: t2.micro / t3.micro

• Key pair:
  ✔ Create new → download PEM file

⚠ Store the PEM safely; you cannot download it again.

3️⃣ Configure Network & Security Group

• Choose default VPC

• Under Security Group, add:

Type	Port	Description
SSH	22	For PEM login
HTTP	80	For NGINX websites
HTTPS	443	SSL
Custom (optional)	3000/8000/5000	App server ports

 

Use My IP for SSH for security.

4️⃣ Launch the instance

Wait until the instance state becomes Running.

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📌 PART 2: Connect to Ubuntu EC2 using PEM File

1️⃣ Set permissions on PEM

From your local machine:

chmod 400 my-server.pem

2️⃣ Connect using SSH

ssh -i my-server.pem ubuntu@<PUBLIC_IP>

If you see:

Are you sure you want to continue connecting (yes/no)?

Type yes.

You are now inside your Ubuntu EC2 machine.

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📌 PART 3: Install NGINX on Ubuntu

Update packages:

sudo apt update && sudo apt upgrade -y

Install NGINX:

sudo apt install nginx -y

Start & enable:

sudo systemctl start nginx sudo systemctl enable nginx
sudo systemctl status nginx

Visit:

http://<EC2-PUBLIC-IP>

You should see “Welcome to nginx!”

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📌 PART 4: Pulling Code to EC2 (GitHub)

Install git:

sudo apt install git -y

Clone your repo:

git clone https://github.com/<username>/<repo>.git

Or pull updates:

​​​​​​​git pull origin main

Move into your project:

cd repo-name

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📌 PART 5: Run Your Backend Service

Depending on your application stack:

✔ For Django (Gunicorn)

pip install gunicorn gunicorn --bind 0.0.0.0:8000 projectname.wsgi:application

✔ For Node.js

npm install node server.js

✔ For Flask

gunicorn -w 4 -b 0.0.0.0:5000 app:app

Your app will now be running on a port like 8000 / 5000 / 3000.

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📌 PART 6: Configure NGINX Reverse Proxy (Ubuntu)

Create a new nginx config file:

sudo nano /etc/nginx/sites-available/myproject 

Paste the reverse proxy configuration:

server { listen 80; server_name _; location / { proxy_pass http://127.0.0.1:8000; # Change to your app port proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } }

Save & Exit.

Link config:

sudo ln -s /etc/nginx/sites-available/myproject /etc/nginx/sites-enabled/

Test nginx:

sudo nginx -t

Restart: 

sudo systemctl restart nginx

Visit browser:  

http://<EC2-PUBLIC-IP>

Your app is live through NGINX.