In the rapidly evolving landscape of web development, efficiency and speed are paramount. Bun, a modern JavaScript runtime like Node.js and Deno, offers impressive performance benefits. Integrating Bun into your development environment using Docker can streamline your workflow and ensure consistency across different setups. This tutorial provides a step-by-step guide to implementing Bun with Docker, enabling you to harness the power of modern web development tools effectively.

Prerequisites

  • Basic knowledge of Docker and command-line interface
  • Docker installed on your machine (Docker Desktop for Windows/Mac, or Docker Engine for Linux)
  • Access to a terminal or command prompt
  • Text editor for editing Dockerfiles and scripts

Step 1: Create a Project Directory

Begin by setting up a dedicated directory for your project. This directory will contain all necessary files for Docker and Bun setup.

Open your terminal and run:

mkdir bun-docker-project
cd bun-docker-project

Step 2: Write the Dockerfile

Create a new file named Dockerfile inside your project directory and add the following content:

FROM debian:latest

# Install dependencies
RUN apt-get update && apt-get install -y curl

# Install Bun
RUN curl -fsSL https://bun.sh | bash

# Add Bun to PATH
ENV PATH="/root/.bun/bin:${PATH}"

# Set default command
CMD ["bun", "--version"]

Step 3: Build the Docker Image

In your terminal, build the Docker image using the following command:

docker build -t bun-docker .

Step 4: Run the Container

Once the image is built, run a container to verify Bun is installed correctly:

docker run --rm bun-docker

You should see the version of Bun printed in the terminal, confirming a successful installation.

Step 5: Developing with Bun inside Docker

To develop your web application, you can create your project files inside the container or mount your project directory as a volume. Here's how to run a container with your project directory mounted:

docker run -it --rm -v $(pwd):/app -w /app bun-docker bash

This command starts an interactive Bash shell inside the container with your current directory mounted at /app. You can now run Bun commands, install packages, and develop your app seamlessly.

Conclusion

Integrating Bun with Docker provides a consistent and efficient environment for modern web development. By following these steps, you can leverage Bun's performance benefits within a containerized setup, simplifying deployment and collaboration across teams. Experiment with your projects and explore Bun's capabilities to enhance your development workflow.