Docker on VPS Bangladesh: Deploy Any App in Minutes

One of the biggest advantages of a VPS over shared hosting is that you can run Docker. Instead of manually configuring each app's dependencies and hoping nothing conflicts, you package everything into containers that work identically everywhere.

This guide walks through installing Docker on a BDIX VPS from SNBD HOST and deploying a real application using Docker Compose. The same process works on a Singapore VPS or USA VPS — Docker doesn't care about location.

Why Docker on a VPS?

Without Docker, running multiple apps on a single VPS means managing competing PHP versions, Python environments, Node.js versions, and system libraries. Something always conflicts eventually.

With Docker:

• Each app runs in its own container with its own dependencies
• Deploy a new app without touching the existing ones
• Roll back to a previous version in seconds
• Move apps between servers by copying a single docker-compose.yml file
• Consistent environments: if it works in your local Docker, it works on the VPS

For developers in Bangladesh building multiple projects — client sites, personal tools, bots, APIs — Docker on a single BDIX VPS is one of the most efficient setups available.

Step 1: Install Docker

SSH into your VPS and run the official Docker installation script. On Ubuntu 22.04:

sudo apt update
sudo apt install ca-certificates curl gnupg -y

sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

echo   "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg]   https://download.docker.com/linux/ubuntu   $(. /etc/os-release && echo "$VERSION_CODENAME") stable" |   sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt update
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y

Verify the installation:

docker --version
docker compose version

Add your user to the docker group so you don't need sudo for every Docker command:

sudo usermod -aG docker $USER
newgrp docker

Step 2: Install Nginx Proxy Manager

When you run multiple apps on one VPS, you need a reverse proxy to route traffic from your domain to the right container. Nginx Proxy Manager gives you a clean web UI for managing this — no manual Nginx config files required.

Create a directory for it:

mkdir ~/nginx-proxy && cd ~/nginx-proxy
nano docker-compose.yml

Paste this configuration:

version: '3.8'
services:
  app:
    image: 'jc21/nginx-proxy-manager:latest'
    restart: unless-stopped
    ports:
      - '80:80'
      - '443:443'
      - '81:81'
    volumes:
      - ./data:/data
      - ./letsencrypt:/etc/letsencrypt

Start it:

docker compose up -d

Access the admin panel at http://YOUR_VPS_IP:81. Default login: admin@example.com / changeme. Change these immediately after first login.

Step 3: Deploy an Application with Docker Compose

Let's deploy a real app — a WordPress site as an example. Create a new directory:

mkdir ~/wordpress-site && cd ~/wordpress-site
nano docker-compose.yml

Paste this:

version: '3.8'
services:
  db:
    image: mysql:8.0
    restart: unless-stopped
    environment:
      MYSQL_ROOT_PASSWORD: strongrootpassword
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wpuser
      MYSQL_PASSWORD: strongwppassword
    volumes:
      - db_data:/var/lib/mysql

  wordpress:
    image: wordpress:latest
    restart: unless-stopped
    depends_on:
      - db
    environment:
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_NAME: wordpress
      WORDPRESS_DB_USER: wpuser
      WORDPRESS_DB_PASSWORD: strongwppassword
    volumes:
      - wp_content:/var/www/html/wp-content
    expose:
      - "80"

volumes:
  db_data:
  wp_content:

Start it:

docker compose up -d

The WordPress container is now running but not yet publicly accessible. In Nginx Proxy Manager, add a new Proxy Host:

• Domain: yourwordpresssite.com
• Forward Hostname: wordpress (the service name in docker-compose.yml)
• Forward Port: 80
• Enable SSL with Let's Encrypt

Your WordPress site is now live at https://yourwordpresssite.com with SSL, routed through the reverse proxy.

Step 4: Deploy a Node.js App

For a custom Node.js app, create a Dockerfile in your project directory:

FROM node:20-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
EXPOSE 3000
CMD ["node", "server.js"]

And a docker-compose.yml:

version: '3.8'
services:
  app:
    build: .
    restart: unless-stopped
    expose:
      - "3000"
    environment:
      NODE_ENV: production
      PORT: 3000

Build and start:

docker compose up -d --build

Add a proxy host in Nginx Proxy Manager pointing to your app container on port 3000. Done.

Step 5: Managing Containers

Common Docker commands you'll use daily:

# View running containers
docker ps

# View logs for a container
docker compose logs -f app

# Restart a container
docker compose restart app

# Pull latest image and redeploy
docker compose pull && docker compose up -d

# Stop everything
docker compose down

# Remove unused images (free up disk space)
docker image prune -a

Step 6: Automatic Container Restarts After Reboot

The restart: unless-stopped directive in the compose file handles this. If your VPS reboots, Docker starts automatically (enabled by default on Ubuntu), and all containers with this policy restart themselves.

Verify Docker starts on boot:

sudo systemctl enable docker

Disk Space Management

Docker images accumulate over time. Clean up regularly:

# Remove stopped containers, unused networks, dangling images
docker system prune -f

# Check disk usage
docker system df

On a VPS with NVMe SSD storage (as included in SNBD HOST plans), I/O is fast enough that container startup and image pulls are noticeably quicker than on spinning-disk VPS options.

What You Can Run with This Setup

With Docker and Nginx Proxy Manager on a single BDIX VPS, you can run:

• Multiple WordPress or PHP sites
• Node.js / Python / Go / Ruby APIs
• Self-hosted tools like n8n, Uptime Kuma, Gitea, Nextcloud
• Telegram and Discord bots
• Database services (PostgreSQL, MySQL, MongoDB)
• Redis for caching
• Custom scraping or automation scripts

All of this on a single ৳499/mo BDIX VPS. For Bangladeshi developers running multiple projects, this is one of the most cost-efficient setups available.