Online Docker Playground

Introduction

LabEx provides a Docker Playground environment where users can quickly experience Docker-related technologies. The Docker Playground runs on an Ubuntu 22.04 operating system, offering a convenient platform for users to explore and learn Docker.

Skills Graph

Usage

The Docker Playground offers three user interfaces: VS Code, Desktop, and Web Terminal. Users can choose the interface that best suits their preferences and experience level.

VS Code Interface

1. Log in to the LabEx platform and access the Docker Playground.
2. In the Docker Playground, select the "VS Code" interface.
3. The VS Code environment will be loaded, providing a familiar code editing experience.
4. Within the VS Code interface, users can create a new Docker project or open an existing one.

To create a "Hello World" Docker project, follow these steps:

• Open a new file and name it "Dockerfile".
• In the Dockerfile, add the following content:

FROM ubuntu:22.04
RUN apt-get update && apt-get install -y nginx
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]

• Save the Dockerfile.
• Open a new terminal within the VS Code interface.
• Run the following commands to build and run the Docker container:

docker build -t hello-world .
docker run -d -p 80:80 hello-world

Access the "Hello World" application by opening a web browser and navigating to http://localhost.

Desktop Interface

1. Log in to the LabEx platform and access the Docker Playground.
2. In the Docker Playground, select the "Desktop" interface.
3. The Docker Playground will load a desktop environment, similar to a traditional operating system.
4. Within the Desktop interface, users can access the terminal and follow the same steps as in the VS Code interface to create and run the "Hello World" Docker project.

Web Terminal Interface

1. Log in to the LabEx platform and access the Docker Playground.
2. In the Docker Playground, select the "Web Terminal" interface.
3. The Web Terminal will provide a command-line interface for interacting with the Docker Playground.
4. Within the Web Terminal, users can follow the same steps as in the VS Code and Desktop interfaces to create and run the "Hello World" Docker project.

Summary

The LabEx Docker Playground offers a convenient and accessible way for users to explore and learn Docker. With three different user interfaces (VS Code, Desktop, and Web Terminal), the Playground caters to a wide range of user preferences and experience levels. By following the steps outlined in this document, users can quickly set up and run a "Hello World" Docker project, gaining hands-on experience with Docker's capabilities.