Deploy Apps Fast on a VPS with Docker

Docker lets you package an app and its dependencies into an image that runs on any VPS with one command — the mainstream of modern deployment.

1. Install Docker

On Ubuntu the simplest way is the official script: curl -fsSL https://get.docker.com | sh. Verify with docker --version.

2. Run your first container

For example, start Nginx: docker run -d -p 80:80 nginx. -d runs it in the background, -p maps container port 80 to host port 80. Visit the server IP to see the page.

3. Manage multiple services with docker compose

Real projects often have a database, cache and more. Write a docker-compose.yml and bring everything up with docker compose up -d for easy maintenance.

4. Persist data

Data is lost when a container is removed, so mount volumes to host directories for important data to avoid accidental loss.

Notes

• On low-RAM VPS, watch resource use when running many containers;
• Expose only the ports you need and block the rest with a firewall.

Need more RAM for Docker? Check 00Shark's higher-tier plans.