Docker Tips for Web Developers
Published Mar 28, 2025 • 9 min read
Why Docker is Important
Docker has become essential for modern web development. It ensures consistent environments across development, staging, and production. This article covers practical Docker tips that will help you streamline your workflow.
Setting Up Your First Container
Here's how to create a Docker container for your project. This example creates a Node.js development environment with your app.
Dockerfile
FROM node:18
WORKDIR /app
COPY . .
CMD ["node", "index.js"]
Run the container with
docker build -t my-node-app .
Common Docker Commands
You'll frequently run into situations where you need to interact with containers. Use these common commands:
| Command | Description |
|---|---|
| docker build -t myapp | Build image |
| docker run -p 80:5000 myapp myapp | Run container |
| docker ps | List running containers |
Pro Tip
Avoid running containers as root. Always use user namespaces to enhance security.
USER appuser