Getting started

Welcome to the Docker basics guide for X20 Edge! This guide will help you get started with Docker, a powerful tool for managing containers. Let's dive in! 🚀

🛠 Introduction to Docker

Docker is a platform that allows you to develop, ship, and run applications inside containers. Containers are lightweight, portable, and ensure that your application runs consistently across different environments.

• What is a Container? A container is a lightweight, stand-alone, executable package that includes everything needed to run an application: code, runtime, system tools, libraries, and settings.

• Why Docker?

  • Consistency across multiple development, testing, and production environments
  • Simplified dependency management
  • Better resource utilization

📥 Installing Docker

X20 edge comes preinstalled with docker.

🚀 Basic Docker Commands

Here's a quick rundown of some essential Docker commands:

Command	Description
docker --version	Check Docker installation
docker pull <image-name>	Pull an image from a repository
docker run <image-name>	Run a container
docker ps	List running containers
docker stop <container-id>	Stop a running container
docker rm <container-id>	Remove a container
docker images	List all images

🖼 Using Docker Images

Docker images are the building blocks of containers. They contain the application and its dependencies.

🔍 Searching for an Image

To find available images on Docker Hub:

docker search <image-name>

Example:

docker search ubuntu

📥 Pulling an Image

To pull an image (download it to your device):

docker pull <image-name>:<tag>

Example:

docker pull ubuntu:latest

📜 Listing Images

To list all downloaded images:

docker images

📦 Running Docker Containers

Containers are instances of Docker images. Let's run a simple container.

1. Run a Container:

   docker run -it ubuntu:latest

   This command starts an interactive shell in an Ubuntu container.

2. List Running Containers:

   docker ps

3. Stop a Container:

   docker stop <container-id>

4. Remove a Container:

   docker rm <container-id>

🌟 Example: Running a Python Container

Let's pull and run a Python container.

1. Pull the Python Image:

   docker pull python:3.9

2. Run the Python Container:

   docker run -it python:3.9 python

   This command will start an interactive Python session inside the container.

📚 Conclusion

Congratulations! 🎉 You've successfully learned the basics of Docker on the X20 Edge. This guide covered installing Docker, basic commands, using images, and running containers. Docker is a powerful tool that can streamline your development and deployment processes.

For more information, check out these additional resources:

• Docker Documentation
• Docker Hub