'Docker Tutorial for Beginners: Building and Running Your First Container

Definition:
Docker is a containerization platform that allows developers to package, ship, and run applications in containers. Containers are lightweight and portable, providing a consistent and reliable way to deploy applications across different environments.

*Building an Image:*

1. Create a Dockerfile that defines the application and its dependencies.
2. Run the command `docker build -t my-image .` to build the image.
3. The image will be stored in the local Docker repository.

*Building a Container:*

1. Run the command `docker run -it my-image` to create a new container from the image.
2. The container will start and run the application.
3. You can interact with the container using the command `docker exec -it my-container /bin/bash`.