Major Components of Docker Architecture

Major Components of Docker Architecture

• Docker Client
• Docker Host
• Docker Daemon
• Docker Registry

1. Docker Client

• User can interact with Docker using Docker client. It is utility we use, when we use commands such as : docker run
• Docker client send these requests to Docker Daemon.
• A Docker client can communicate with more than one Docker daemon.

2. Docker Host

• It provides complete environment to execute and run the applications.
• It is the physical host, on which Docker daemon is running.
• It comprises of Docker daemon and Docker Objects like docker images, containers, network, storage.

3. Docker Daemon

• It pulls and builds container images requested by clients.
• Docker Daemon is also known as Docker Engine.
• It manages Docker images, containers, networks and volumes.

4. Docker Registry

• A Docker Registry is where the Docker images are stored.
• It provides locations, from where you can pull and store images.
• Docker Hub is the public registry that anyone can use.