Docker Containers

Containers are the core building blocks of Docker. They're lightweight, portable, and self-sufficient units that encapsulate an application and its dependencies. A container is essentially an image that is running.

To create a container, you can use the docker create command, but additional commands are used to start, pause, stop, run, and delete containers.

A container has a lifecycle with various phases that correspond to defined events:

• attach
• commit
• copy
• create
• destroy
• detach
• die
• exec_create
• exec_detach
• exec_die
• exec_start