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This article mainly introduces the meaning of K8s, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, let the editor take you to understand it.

K8s can form a high availability cluster of connected computers. There is no need to specify a running machine to deploy the program under the abstract module of K8s. To use this deployment module, the application first needs to be containerized (that is, the environment is fully integrated into the docker image, later called dockerization): decoupled from the host environment. Docker-based programs have better flexibility and availability than those installed directly by the system. K8s automates the distribution and scheduling management of docker containers in the cluster. K8s is a released open source management platform.

A K8s cluster contains two resources: the scheduling master of the cluster and a large number of nodes responsible for task execution. As shown below:

Master is the manager of the whole cluster and is responsible for scheduling all operations of the cluster, such as task distribution, program maintenance, capacity expansion, batch upgrade and so on.

Node is a virtual machine or physical machine that deploys specific services. Each node is equipped with an agent--Kubelet for data communication with K8s master. Nodes need to install container management related tools, such as Docker,rkt, etc. At least 3 nodes are required to use the traffic management of the K8s cluster.

When you deploy the program on K8s, simply issue the command to launch the program container to master, and master will schedule nodes to perform the task. Both nodes and users can communicate with master using the interface (API) that master has exposed.

K8s clusters can be deployed on both physical and virtual machines. You can use Minikube as a starter for K8s deployment learning. Minikube is a lightweight K8s implementation that creates a virtual machine on your local system and deploys a simple cluster with only one node. The Minikube applicable systems are Linux,Mac OS and Windows. The command line interface of Minikube provides the basic cluster operation command: start,stop,status,delete.

Thank you for reading this article carefully. I hope the article "what does K8s mean" shared by the editor will be helpful to everyone? at the same time, I also hope that you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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