Docker Architecture

Human —> Docker Client –> Rest Api –> Docker Deamon(Server) –> containerD –> Kernal

What is ContainerD?

Containerd is a container runtime that Docker Engine uses under the hood to manage container lifecycles, including starting, stopping, and pulling images.

What are Docker components?

There are Four Types:-

• Docker Engine – Docker Client –> Rest Api –> Docker Deamon(Server)

• Docker Registry – Contains a Repository contains a Version of the filesystem, such as

Root filesystem = CentOS, Ubuntu, RHEL

Root filesystem + App = jenkins + tomcat

        Example = GitHub Is Registry and in GitHub Repository is created

• Docker image
• Docker Container

Docker Workflow

Container LifeCycle