Understanding Docker Containers

Why Containers?

Before containers, we had “It works on my machine” problems. Containers solve this by packaging software with all its dependencies.

Docker Architecture

Docker uses a client-server architecture. The Docker client talks to the Docker daemon, which does the heavy lifting of building, running, and distributing your Docker containers.

Images vs Containers

• Image: A read-only template with instructions for creating a Docker container.
• Container: A runnable instance of an image.

Getting Started

Install Docker Desktop and run your first container: docker run hello-world