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Kubernetes Introduction (kubernetes) architecture

ObjectiveThis article is a reading note, specific reference to Mr. Nu Bongfei's original "Kubernetes Guide", thank the original author, salute!I. Introduction of BorgBorg is a large-scale cluster management system within Google, which is responsible for the scheduling and management of many core services within Google.The goal of Borg is to enable users to focus on their core business without having to worr

Kubernetes architecture and component introduction of open-source container Cluster Management System

Kubernetes architecture and component introduction of open-source container Cluster Management System This article is based on an Infoq article (see the reference section) and has been modified based on your understanding in difficult areas. For more information about deploying kubernetes on Ubuntu, see. Together we will ensure that

Introduction to Kubernetes system Architecture __java

functions are as follows: 1 Use Docker for application wrapping (package), instantiating (instantiate), running (run). 2 to run and manage the containers across the machine in a cluster manner. 3 to solve the communication problem between Docker and cross machine containers. 4 Kubernetes's self-healing mechanism makes the container cluster always run in the user's desired state. The current kubernetes support GCE, Vshpere, CoreOS, OpenShift, Azure an

(reprint) Introduction of Kubernetes architecture and components of open source container cluster Management system

file), Then, based on the configuration information, a proxy process is started on Minion and the corresponding service port is monitored, and when an external request occurs, proxy distributes the request to the correct container processing on the backend based on the load balancer.Therefore, the proxy not only solves the problem of the same host service port conflict, but also provides the service forwarding service Port's ability to provide services externally, the proxy backend uses the ran

Introduction of kubernetes container arrangement system

name to go to Docker to query the hash value of the corresponding container. If the container is found and the hash value is different, the container process in Docker is stopped and the pause container process associated with it is stopped;If the container is aborted and the container does not have a specified Restartpolicy (restart policy), no processing is done.Call the Docker client to download the container image and call the Docker client to run the container.Container Health CheckThe pod

Introduction to Kubernetes system architecture

KubernetesKubernetes is the Google Open Source container cluster Management system, which provides application deployment, maintenance, extension mechanisms and other functions, using kubernetes can easily manage the cross-machine operation of containerized applications, the main functions are as follows:1) Use Docker for application wrapping (package), instantiation (instantiate), and run.2) Run and manage containers across machines in a clustered m

Kubernetes Brief Introduction

backend pods.Third, package installationCENTOS7 system can be installed by Yum mode. The latest version of the current kubernetes is 1.9, it is not recommended to use the 1.9 version in the production environment, the official website recommended the use of KUBEADM deployment, in order to more simple and more systematic learning kubernetes cluster components, this series of articles using the RPM method of

Introduction and practice of pod in kubernetes

Introduction and practice of pod in kubernetes The concept of podDetailed pod explanation can refer to k8s official website, the concept of pod mainly has the following points:(1) Pod is the smallest and simplest unit that you can create and deploy in Kubernetes. A pod represents a process that runs in a cluster;(2) How to use pod in kubrenetes cluster;(3) Ho

kubernetes-Introduction (i)

communication and provides a platform foundation for the practice of microservices architectures. At the pod level, as the smallest object that kubernetes can manipulate, its characteristic is the native support to the Micro Service architecture.July 22, 2015 iteration to v1.0 and officially announced, which means that the open source container orchestration system can be formally used in the production environment. At the same time, Google joined th

Docker Management Artifact-kubernetes-Introduction

that provide services to the backend, it is by identifying the container's labels to select the correct container. Proxy: It is designed to address the external network's ability to access application services provided across the container in a machine cluster. Proxy provides TCP/UDP sockets proxy, each creating a service,proxy mainly from ETCD to obtain services and endpoints configuration information, or can also be obtained from file, Then, based on the configuration information, a proxy pro

Kubernetes section Volume type Introduction and YAML sample--emptydir

Kubernetes section Volume type Introduction and Yaml sample--emptydir (Local data volume) DescriptionThe Emptydir type of volume is created when the pod is dispatched to a host, and the container within the same pod can read and write to the same file in the Emptydir. Once the pod has left the host, the data in the Emptydir will be permanently deleted. So the current Emptydir type of volume is primarily

Kubernetes section Volume type Introduction and YAML sample--NFS (network data volume)

Kubernetes section Volume type Introduction and YAML sample--NFS (network data volume) DescriptionNFS volumes allow existing NFS (network file system) shares to be mounted in your container. Unlike Emptydir, when the Pod is deleted, the contents of the NFS volume are retained and the volume is simply unloaded. This means that the NFS volume can pre-populate the data, and it can "toggle" the data between

kubernetes-Component Introduction

后端的容器,如果有多个副本,kube-proxy 会实现负载均衡,Flannel principle 数据从源容器发出后,经由所在主机的docker0 虚拟机网卡转发到flannel0 虚拟机网卡,这是个p2p的虚拟网卡,(flannel通过etcd 服务维护一张节点间的路由表) 源主机的flannel 服务将原本的数据内容UDP 封装后根据自己的路由表投递给目的节点的flannel 服务,数据到达目的的flannel0 虚拟网卡,然后转发到目的主机的docker0 虚拟机网卡 最后容器通信一下的docker0 的路由到达目标容器,这样整个数据包的传递就完成了Calico principle calico 包括如下重要组件: felix, etcd, BGP client, BGP Route Reflector felix: 主要负责路由配置以及ACLS规则的配置以及下发,它存储在每个node 节点上 etcd: 分布式键值存储,主要负责网络元数据一致性,确保calico 网络状态的准确性 BGPClient(BIRD): 主要负责把felix 写入kernel的路由信息分发到当

Go environment and go-client introduction of Kubernetes

1, Go language introduction: (1) The Go language is the second open source programming language released by Google 2009. (2) The Go language is optimized for programming multi-processor system applications, with go-compiled programs that are comparable to the speed of C or C + + code, and are more secure and support parallel processes. 2. Go language Features Advantage: (1) static type, compiled open source language (2) Scripting syntax (3) Nat

Introduction to Kubernetes Architecture

Kubernetes is a master-slave structure, it mainly implements the Docker of the dispatch, the following detailed introduction of my understanding of the Kubernetes architecture: Master node : API Server: Provides the API interface of cluster management, it becomes the central hub of data interaction and communication between each function module in the cluster,

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