1. Components of Docker and its Brief Summary by Bharath Srinivas

Docker Engine:
It is the main part of docker system. It follows client-server architecture.
It is installed on host machine. It contains:
1.Server: It is called as dockerd used to manage images containers network
2.Rest API: used to instruct daemon
3.CLI: where we run the docker commands

Docker Client:
when you run commandon CLI client sends to daemon which makes the action.Docker client
can communicate with more than one daemon

Docker Registry:
It is the location where docker images are stored.it can be public or a private
when we run pull command the docker pulls the image from registry

Images:
The are read only thing which contains instructions to create container

Containers:
when we run image it creates container. All the application and their dependencies run inside
container.