May 22, 2021 Docker From entry to practice
Docker uses containers to run the app.
The container is a running instance created from the mirror. I t can be started, started, stopped, deleted. Each container is an isolated, secure platform.
Containers can be seen as a simple version of a Linux environment (including root user rights, process space, user space, cyberspace, and so on) and the applications running in it.
Note: The mirror is read-only, and the container creates a writeable layer as the top layer at startup.