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Docker Basics: Introduction

Learn the fundamentals of Docker - what it is and why it matters

What is Docker?

Docker is a platform for developing, shipping, and running applications in containers.

Why Containers?

Containers solve the “it works on my machine” problem by packaging applications with their dependencies.

# Your first Docker command
docker run hello-world

Key Concepts

  1. Image: A read-only template with instructions for creating a container
  2. Container: A runnable instance of an image
  3. Dockerfile: A text file with instructions to build an image
  4. Registry: A repository for Docker images (like Docker Hub)

Next Steps

In the next article, we’ll create our first Dockerfile.