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This article introduces to you how the principle analysis of k8s is, the content is very detailed, interested friends can refer to, hope to be helpful to you.

K8s is an open source container cluster management system, which can realize automatic deployment, automatic expansion, maintenance and other functions of container cluster.

1. Failure migration: when a node node shuts down or hangs up, the services on the node node are automatically transferred to another node node, and all services are uninterrupted. This is something that docker or an ordinary CVM cannot do.

2. Resource scheduling: when there is not enough cpu and memory on the node node, the node node can be expanded, and the new pod will be dispatched to the newly expanded node node by kube-schedule.

3. Resource isolation: create three namespaces: development, operation and maintenance, and test. After switching contexts, developers can only see all the pod of the development namespace, but not the pod of the operation and maintenance namespace, so that they will not affect and interfere with each other.

In a traditional host or only docker environment, log in and see all the services or containers

4. Because of the docker container, the processes do not affect each other.

5. Security: different roles have different permissions to view pod, delete pod and other operations. RBAC authentication adds security to K8s.

Deploy applications quickly and accurately

Limit hardware usage to the required resources only

Advantages of Kubernetes

Mobile: public cloud, private cloud, hybrid cloud, polymorphic cloud

Scalable: modular, plug-in, mountable, combinable

Self-repair: automatic deployment, automatic restart, automatic replication, automatic scaling

Load balancing

K8s can update the new version faster, package the application, update without service interruption, server failure without downtime, the migration from the development environment to the test environment to the production environment is extremely convenient, a configuration file is completed, image is generated at a time, and run everywhere.

On the principle of k8s analysis is shared here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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