What is Docker Architecture

 

What is Docker Architecture

Docker uses a client-server architecture. The Docker client talks to the Docker daemon, which does the heavy lifting of building, running, and distributing your Docker containers. The Docker client and daemon can run on the same system, or you can connect a Docker client to a remote Docker daemon. The Docker client and daemon communicate using a REST API, over UNIX sockets or a network interface. Another Docker client is Docker Compose, that lets you work with applications consisting of a set of containers.


                    


The Docker daemon

The Docker daemon (dockerd) listens for Docker API requests and manages Docker objects such as images, containers, networks, and volumes. A daemon can also communicate with other daemons to manage Docker services.

The Docker client

The Docker client (docker) is the primary way that many Docker users interact with Docker. When you use commands such as docker run, the client sends these commands to dockerd, which carries them out. The docker command uses the Docker API. The Docker client can communicate with more than one daemon.

Docker Desktop

Docker Desktop is an easy-to-install application for your Mac or Windows environment that enables you to build and share containerized applications and microservices. Docker Desktop includes the Docker daemon (dockerd), the Docker client (docker), Docker Compose, Docker Content Trust, Kubernetes, and Credential Helper.

Docker registries

A Docker registry stores Docker images. Docker Hub is a public registry that anyone can use, and Docker is configured to look for images on Docker Hub by default. You can even run your own private registry.

When you use the docker pull or docker run commands, the required images are pulled from your configured registry. When you use the docker push command, your image is pushed to your configured registry.

Docker objects

When you use Docker, you are creating and using images, containers, networks, volumes, plugins, and other objects. This section is a brief overview of some of those objects.

 

For more information on Docker and kubernetes  online training Click here

contact us on +91-9989971070



Comments

Post a Comment

Popular posts from this blog

Azure Admin- Powershell-Online Training-Hyderabad

What is Azure PowerShell?  Azure PowerShell is basically an extension of Windows PowerShell. It lets Windows PowerShell users control Azure’s robust functionality. From the command line, Azure PowerShell programmers use preset scripts called cmdlets to perform complex tasks like provisioning virtual machines (VMs) or creating cloud services. APS can work programmatically too, to automate tasks. While some users complain the terminal feels “unfinished” and support is lacking, proponents point out the ease of use aids typically intensive tasks.  How Azure PowerShell Works  Azure PowerShell works by using mini scripts called cmdlets to perform powerful, common tasks in Microsoft Azure through an extension of Windows PowerShell. Without logging in, users can enter a single cmdlet from the command line to create a new virtual machine. Other single-cmdlet functions include configuring a virtual machine, moving content from a local machine to an Azure storage blog, and creatin...
Read more

What isKubernetes-Docker and Kubernetes- Online Training-Hyderabad

  What is Kubernetes? Kubernetes is an open supply orchestration tool developed by Google for managing micro-services or pack applications across a distributed cluster of nodes. Kubernetes provides extremely resilient infrastructure with zero time period preparation capabilities, automatic rollback, scaling, and self-healing of containers (which consists of auto-placement, auto-restart, auto-replication, and scaling of containers on the premise of hardware usage). The main objective of Kubernetes is to cover the complexness of managing a fleet of containers by providing REST genus Apis for the specified functionalities. Kubernetes is transportable in nature, which means it can run on numerous public or non-public cloud platforms similar to AWS, Azure, OpenStack, or Apache Mesos. It may also run on blank metal machines. Kubernetes Components and Architecture Kubernetes follows a client-server design . It’s attainable to possess a multi-master setup (fo...
Read more