DevOps Training - Docker Questions - Assessment 1

1. What is Docker?
Docker is a Container Management Tool which helps to build, deploy, run, update and manage containers.
2. Why Docker?
Docker is used in order to mainly save time and resources. To avoid the havoc of multiple resource creation and management.
3. What is Container
A container is a runnable instance of a docker image which can be used to run applications.
4. Docker workflow
Docker Daemon -> Docker CLI -> Docker Engine API
Docker Host -> Docker Client -> Docker Registry (Hub)
5. How container created?
Source Docker Image -> Run the image -> make it active
The docker daemon requests the kernel for creating a Linux namespace with a mount, an isolated network and the runtime environment.