kubernetes certification

This is a creation in Article, where the information may have evolved or changed. "Editor's words" This share is mainly zookeeper, Redis, Kafka, MongoDB and other applications containerized in the Kubernetes platform above practice. The problems of application in integration are analyzed from the aspects of computing, network and storage, and the application of some traditional applications in the process of container design is two times. This paper i

Welcome to an in-depth study of the Kubernetes API Server series, in this series of articles we will delve into the implementation of Kubernetes API server. This series of articles can help you if you are interested in Kubernetes's internal implementation mechanisms or are working on the development of kubernetes projects. Learning to learn the go language will h

This article introduces the use of Docker and kubernetes to build a set of MONGODB services with redundant backup sets, from the container to the CI and CD-initiated changes, discussed the container technology to MONGODB challenges and opportunities, and then how to deploy a stable set of MONGODB services , very dry.IntroducedWant to try to run MongoDB on your laptop? Want to execute a simple command and then have a lightweight, self-organizing sandbo

Kubernetes ArchitectureThe overall architecture of the kubernetes is as follows:Master is the main control node, which runs Apiserver,scheduler,controller-manager and other components. Minion is the equivalent of a working node, which runs Kubelet,proxy,cadvisor and the most important Docker components. Here's how to actually deploy this cluster management tool.EnvironmentYy1 10.193.6.35Yy2 10.193.6.36Yy1 a

Deploy Kubernetes in Docker Kubernetes is an open-source container management framework of Google. It provides a series of functions such as host, cluster management, container deployment, high availability, and auto scaling of Docker containers; kubernetes's design goals include putting the container cluster in the desired state at any time. Therefore, a complete cluster management mechanism is established

Configure the dashboard service for a Kubernetes Cluster This article describes how to create and use kube-ui (also called dashboard) based on the previous article. This is essentially an api interface for connecting webui to the master. It obtains information about the k8s cluster through the api and then displays it on the web, which is more friendly to users, it is not very useful. 1. Download image files and integrate them into the local warehouse

Create a Kubernetes-dashboard In the previous article (SEE), deploy the Kubernetes-dashboard Based on the deployed kubernetes. It is an official user management Kubernets cluster visualization tool; deploying a dashboard is the same as deploying other applications in kubernets. Just create the Replication Controller and Service services required by the dashboard;

If you're an OPS engineer, you know that Docker is valued at more than $1 billion, and Docker is one of the most popular technology brands. Docker containers are known as the de facto standard for container runtimes, but Google's kubernetes is winning the choreography framework market. When using container technology, we often encounter the question, "will using Kubernetes hurt Docker?" ”Many people believe

Rancher 2.0 is an open-source, enterprise-class Kubernetes platform that is now available for beta releases. Rancher 2.0 simple and intuitive interface style and operation experience, will solve the industry legacy of the long-kubernetes native UI ease of use and the learning curve steep problem. and Rancher 2.0 Creative multi-kubernetes cluster management functi

Mesos and Kuberneteshttp://dockone.io/article/956 I firmly believe that their use will grow faster in the next year, so it is time to review the summary and prepare for 2016 years. I would like to discuss the current situation of Mesos and kubernetes and enumerate the strengths and weaknesses that will allow you to understand the concept of cluster manager.Mesos and KubernetesBefore I start, I'd like to take the time to roughly compare Mesos and

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

Kubernetes is Google's Open source container cluster management system. It is built on Docker technology and provides a whole set of functions, such as resource scheduling, deployment operation, service discovery, expansion and contraction capacity, for containerized applications, which can be regarded as Mini-paas platform based on container technology. The purpose of this article is to comb the architecture, concepts, and basic workflows of

Resources:k8s-Network Isolation Reference Opencontrail is a open source network virtualization platform for the cloud. –kube-o-contrail–get your hands dirty with Kubernetes and Opencontrail Opencontrail is a open source network virtualization platform for the cloud. Opencontrail Architecture Document-flying Eagle's diary-NetEase Blog Opencontrail Study (i)-wanjia19870902 's Colu

OverviewCoredns is so notorious because it was introduced from kubernetes1.9 as the default DNS for Kubernetes internal service discovery. There is no doubt that Kubernetes is one of Coredns's backend, so we speak Coredns, starting with Kubernetes as the back end.Many of Coredns's features are mentioned on the web and are not covered here. A simple comparison of

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.

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