kubernetes documentation

Tags: WordPress MySQL KubernetesWordPress is the main platform for editing and publishing Web content. In this tutorial, I'll step through how to use kubernetes to build a high availability (HA) WordPress deployment.WordPress consists of two main components: a wordpress PHP server and a database for storing user information, posts, and website data. We need to make these two components in the entire application both highly available and fault tolerant

k8s Basic Concepts1. NodeNode as a working node in the cluster, running a real application, the smallest running unit kubernetes managed on node is the pod. Node runs Kubernetes's kubelet, Kube-proxy service processes, which are responsible for pod creation, startup, monitoring, restart, destruction, and load balancing for software patterns. The information that node contains: node address: The IP address of the host, or node ID. node op

First, introduce This case is based on Kubernetes and Docker, which includes1, Web front-end2, Redis Master3, Redis SlaveWhere the Web front-end interacts with the JavaScript Redis API and Redis Master Kubernetes System Architecture Second, the configuration 0. PrerequisitesKubernetes Cluster 1, start Redis Master use replication controller to ensure that only one pod is running (when a node is down,

ETCD-V3.1.8-LINUX-AMD64CP Etcd Etcdctl/usr/bin4 Installing flannel 1) Download flannel Compression Packwget https://github.com/coreos/flannel/releases/download/v0.7.1/flannel-v0.7.1-linux-amd64.tar.gz 2) Unzip the flannel compression packTar-xzf flannel-v0.7.1-linux-amd64.tar.gz3) Copy Flannel executable programCD FLANNEL-V0.7.1-LINUX-AMD64CP Flannelid Mk-docker-opts.sh/usr/bin5 Installing k8s 1) Get k8s Master version (1.7.0-alpha)git clone https://github.com/

Controller manager, as the Management control center within the cluster, is responsible for the resource management in the cluster, including node, Pod, namespace, and rated resources. For example, when an unexpected node outage occurs, Controller Manager will promptly discover and perform an automated fix.First, deploy k8s Controller ManagerMake sure Controller-manager-key.pem and Controller-manager.pem exist, and I've created the relevant private key here in the previous article. Perform the f

2, set kubeconfig2.1 settings Kubectl kubeconfig (admin.conf)# set cluster parameters kubectl config set-cluster kubernetes--certificate-authority=/etc/kubernetes/pki/ca.pem--embed-certs=true --server=https://master_vip:6443--kubeconfig=admin.conf# Setting Client authentication Parameters kubectl Config set-credentials kubernetes-admin- -client-certificate=/etc/

kubernetes cluster Installation DeploymentKubernetes Cluster Components:-master node-Etcd a highly available k/v key value to the storage and service discovery system-Kube-apiserver provides API calls to Kubernetes clusters-Kube-controller-manager ensure Cluster service-Kube-scheduler dispatch container, assign to Node-minion node-Flannel The communication of the container network of the boast host-Kubelet

1. Reference documentationhttp://traefik.cn/2. Simple way to accessReference documentshttps://tonybai.com/2018/06/25/the-kubernetes-ingress-practice-for-https-service/Previous: Traefik Basic deployment record, describes the simplest HTTP access Traefik, the access process reference is shown below:Client---(via HTTP)---> Traefik----(via HTTP)----> ServicesNow to practice is more secure and more complex HTTPS access Traefik, there are two kinds of acces

On the left is my personal, if you need further communication, please add. On the right is my public number "OpenStack private cloud", if interested, please pay attention.in the previous post, " Kubernetes Getting Started learning mentioned in the Katacoda experimental environment can be further familiar with the use of k8s , the specific URL is: https://www.katacoda.com/courses/kubernetes/Recently spent s

The content of this article has been validated based on k8s v1.8.8. K8s Service defines the access entry address of a server, the front-end application accesses a cluster of pod replicas behind it through this entry address, and the access requests from outside are load balanced to each container application on the back end. Between the service and the back-end pod replica cluster, the docking is done through the label selector. The function of RC is to ensure service ability and service quality

There are several ways to install the Kubernetes cluster, the KUBEADM approach is described earlier, and the manual installation method is described in this article.The installation environment has 3 VMS on Azure:HKUBE01:10.0. 1.4 HKUBE02: 10.0. 1.5 Hbube03: 10.0. 1.6Where hkube01 is the master node, it will install Docker, ETCD, Kubernetes Master, flannel required components;HKUBE02 and hkube03 are worker

1. Bash Auto-refill for KUBECTL commandsThis is probably the easiest thing to do in the kubernetes process, but it's also one of the most useful. To add the auto-refill feature, if you use bash, simply execute the following command:echo"sourceIt will add an auto-complete command to your. bashrc file. So each shell window you open supports this feature. I found that auto-completion is especially useful for some long parameters, such as--all-namespaces.

Ubernetes is the King of container orchestration and scheduling, it beats the competitors Docker swarm and Apache Mesos, opens the bright future, microservices can be self-repairing, can be automatically expanded, can cross zone, Region even across cloud providers for federate. In this new era of cloud-native applications, it is becoming increasingly important to have a simple insight into how services interact with each other, which can be different from a haystack-wide search for a specific ca

master node's own IP address, cluster_ip_subnet for the entire cluster subnet range, For example, 192.168.0.0/16, while Master_switch_subnet is the subnet range that the pod on the master node can allocate, such as 192.168.1.0/24SOURCE Link: https://github.com/YaoZengzeng/scripts/blob/master/ovn-k8s-master.sh4, at first I was using KUBEADM to build k8s cluster, but when the API server through http://127.0.0.1:8080 to find that the port is not open, it may be kubeadm by default is not open the p

Yum-y Install ETCD Docker flannel kubenetesGeneral will encounter no k8s source problem, first Yum update-y see if it is effective, if still useless to create a Yum source, and then install KubenetesDo the following:Create a Yum sourcevi virt7-docker-common-release.repoAdd the following content:[virt7-docker-common-release]name=virt7-docker-common-releasebaseurl=http://cbs.centos.org/repos/virt7-docker-common-release/x86_64/os/gpgcheck=0Installation ServicesExecute the following command to inst

1. Reference documentationhttp://traefik.cn/2. Simple way to accessReference documentshttps://tonybai.com/2018/06/25/the-kubernetes-ingress-practice-for-https-service/Previous: Traefik Basic deployment record, describes the simplest HTTP access Traefik, the access process reference is shown below:Client---(via HTTP)---> Traefik----(via HTTP)----;? ServicesNow to practice is more secure and more complex HTTPS access Traefik, there are two kinds of acce

Deployment BookInfo Sample program detailed procedures and procedures (based on kubernetes cluster +istio v1.0)Deploying the BookInfo sample programThe sample application is included in the Samples directory of the downloaded Istio installation package.BookInfo ApplicationsDeploy a sample application that consists of four separate microservices to demonstrate a variety of istio features. This app mimics a category in the online bookstore, displaying i

Kubernetes Kubeadm installation requires the following four packages Kubelet Kubernetes-cni Kubeadm kubectl These four packages can be downloaded via the Https://github.com/kubernetes/kubernetes warehouse to perform make fetch installation packages, and the release version is required if the RPM package is required. In

0. Preface Overall architecture directory: ASP. NET core distributed project-Directory k8s Schema Catalog: Kubernetes (K8S) cluster deployment (K8S Enterprise Docker container cluster Management) series catalog 1. Deploy Master Components The components of the master server are: Kube-apiserver, Kube-controller-manager, Kube-scheduler So you need to download k8s master,:github.com/kubernetes/

, both in configuration, compilation, and packaging.6. Powerful UI EditorAndroid Studio's editor is very smart, in addition to absorbing the advantages of Eclipse+adt, but also comes with a multi-device real-time preview, relative to the Android developers is an artifact ah.7. Built-in terminalStudio built-in terminal, which is the gospel for people who are accustomed to command-line operations, no longer has to switch back and forth, and a studio is all done.8. More perfect plug-in systemStudio