kubernetes kube

Author: Peng Jingtian The node nodes of Kubernetes are composed of Kubelet, Kube-proxy, flannel, dockerd four components, this paper mainly analyzes the functions and principles of kube-proxy components. Pod is the smallest unit of resource allocation in kubernetes and the smallest entity to perform tasks. Each pod ha

Outline: ? How to discover services in Kubernetes ? How to discover the services provided by pod ? How to use service discovery Services ? How to use the Kube-dns discovery service ? Kube-dns principle ? Composition ? Domain name format ? Configuration Note: this share is based on the

Outline: How to discover services in KubernetesHow to discover how pod-provided services use the Service Discovery service to use the Kube-dns discovery service Kube-dns principleCompose domain name format configuration Note: This share is based on the Kubernetes 1.2 version. Let's start with a simple example. 1. How to discover service in

Body in the Plugin/cmd/kube-scheduler/app/options.go file, Schedulerserver defines the context and parameters required to run a scheduler Schedulerserver has all "context" and params needed to run a Scheduler { componentconfig. Kubeschedulerconfiguration//Master is the ' address ' of the kubernetes API server (Overrides any //value in Kubeco Nfig). Master string //Kubecon

Container Network Instance 3 port settings in the service These port concepts are easily confusing, such as creating the following service: APIVERSION:V1 kind:service metadata: Labels: name:app1 name:app1 namespace:default Spec: type:nodeport ports: - Port The port that's exposed on the service ' s cluster IP (virsual IP). The port is the service port which was accessed by others with cluster IP. That is, the port here indicates that the service is exposed to ports on the

3 port settings in a container network instance serviceThe concepts of these ports are easily confusing, such as creating a service like this:[Plain]View PlainCopy Apiversion:v1 Kind:service Metadata Labels Name:app1 Name:app1 Namespace:default Spec Type:nodeport Ports - targetport:8080 Nodeport:30062 Selector Name:app1 PortThe port, the service is exposed on the service ' s cluster IP (virsual IP). Port is the service port wh

Kube-dns compositionKube-dns can solve the service discovery problem, k8s registers the service name as a domain name into Kube-dns, and can access the services it provides through the name of the service.Kube-dns of four components: ETCD, which is used to save DNS rules. kube2sky, the role is to write DNS rules. skydns, provides DNS resolution services. healthz, provides health check function. whi

kubernetes Scheduling Component Kube-scheduler Source analysis 1. Dispatch Flow chart 2 Introduction to the default scheduling algorithm 3 Data Structure func Main () { Runtime. Gomaxprocs (runtime. NUMCPU ()) S:=options. Newschedulerserver () S.addflags (Pflag.commandline) Util. Initflags () Util. Initlogs () defer util. Flushlogs () Verflag. Printandexitifrequested () App. Run (s) } The mai

After a lapse of years, and began to play csdn. the service in k8s is a virtual concept, completely by Kube-proxy implementation for each service you create, you need to define three variables: Clusterip port targetport nodeport which Clusterip + port is used for internal pod Access service and is then assigned Targetport is the port of the container. Nodeport is the back-end pod for the external Access service, and can be accessed by any node-nodepo

relationship between the person and the Authority.2. Kubernetes's certification AuthorityAll operations of the Kubernetes cluster are basically done through the Kube-apiserver component, which provides HTTP restful APIs for intra-and outside-cluster client calls. It is important to note that the authentication authorization process only exists in the API in the form of HTTPS. That is, if the client uses HT

As we all know, kubernetes (k8s) is used for the management of Docker cluster, the recent period of time has been tossing the environment, here to write a blog, to help like me, small white, avoid detours. First, the environment Cluster environment Role IP Address Version number Docker version System version Master 192.63.63.1/24 v1.9.1 17.12.0-ce Centos7.1 Node1 192.63.63.10/24

Environment Configuration CentOS Linux release 7.3.1611 (Core)etcd-v3.2.6 Docker-ce-17.03.2.ce kubernetes-v1.6.9192.168.108.128 Nodes 1192.168.108.129 Nodes 2192.168.108.130 Nodes 3 kubernetes Download Https://github.com/kubernetes/kubernetes/releases/download/v1.6.9/kubernetes.tar.gz Installation ConfigurationPrereq

Detailed guide for manual installation and deployment of Kubernetes on Ubuntu, ubuntukubernetes Background Two Ubuntu16.04 servers: 192.168.56.160 and 192.168.56.161. Kubernetes version: 1.5.5 Docker version: 1.12.6 Etcd version: 2.2.1 Flannel version: 0.5.6 Among them, 160 servers are both master nodes of Kubernetes and node nodes. 161 servers are only node node

Get Source code Latest installation package, GitHubThe experiment of the 1.10.0 binary package download, Baidu network disk Machine Environment Kubernetes Roles IP Address Hostname Master 192.168.142.161 Kubernetes-node1.example.com Node 192.168.142.162 Kubernetes