Docker CLI: A command line interface client for interacting with the Docker daemon.Docker Engine REST API: An API used by applications to interact with the Docker daemon it can be accessed by an HTTP client.The Docker daemon constantly listens for Docker API requests and processes them. Docker Daemon: A persistent background process that manages Docker images, containers, networks, and storage volumes.Docker Engine allows you to develop, assemble, ship, and run applications using the following components: Continuous Deployment and Testing: The ability to have consistent environments and flexibility with patching has made Docker a great choice for teams that want to move from waterfall to the modern DevOps approach to software delivery.įirst, let us look take a look at Docker Engine and its components so we have a basic idea of how the system works.This means they can be easily moved between development, test, and production environments. Portability: All the dependencies for an application are bundled in the container.Resource Efficiency: Process level isolation and usage of the container host’s kernel is more efficient when compared to virtualizing an entire hardware server.This is a whole different approach to virtualization and results in much faster and more lightweight instances .Ĭontainer vs. In other words, while Virtual Machines abstract the entire hardware server, Containers abstract the Operating System kernel. application portability, infrastructure separation, and self-contained microservices.

This allows for the realization of the various benefits of Containers e.g. When compared to Virtual machines, the Docker platform moves up the abstraction of resources from the hardware level to the Operating System level. Let us first compare containers to their closest cousin – Virtual Machines. Let’s look at Docker and its architecture and its various components in detail.

To master Docker you need to start with a clear understanding of its architecture, and how each component of the Docker system interacts with the others. In this page, you’ll learn everything you need to know about Docker architecture:

Docker on mac arch type