kubernetes blog

. logic architecture of Kubernetes Clusters Before you deploy a Kubernetes cluster in detail, we will first show you the logical architecture of the cluster. It can be seen that the entire system is divided into two parts: the first part is Kubernetes APIServer, which is the core of the entire system and manages all containers in the cluster; the second part is m

deployment using the native CLI kubectl of the Minikube CLI and kubernetes. The Minikube CLI can be used to start, stop, delete, get state, and perform other operations on the virtual machine. Once the Minikube virtual machine is started, the Kubectl CLI will perform operations on the Kubernetes cluster. The following command launches an existing Minikube virtual machine and creates an nginx

, this understanding is very important! A more practical example of "I can't just rely on these abstract interfaces". I struggled to learn the network knowledge of Linux in order to allow me to confidently configure Kubernetes the network, certainly better than I totally do not understand the network. It's going to be fun, but it's also time-consuming. Later I might write about Kubernetes the difficulty and

NetworkingKubernetes supports for Third-party netwroking the cluster via the MLM plugin. For more infromation, please see Cluster Networking.According to this Chinese blog, Principles and Solutions of Kubernetes Networking from Yourongyun the three top of the MLM Pro Viders for kubernetes cluster based on VMs is Project Calico, flannel, Weave Net.And also, here

The Kubernetes network model is made up of four parts from inside to outside: The network where the pod interior container resides The network where the pod resides Network for communication between pod and service Network of communication between outside and service It is recommended that you understand the network model of Docker before reading this article. Refer to the author's first two articles [

/resolv.confSearch Default.svc.kube.local svc.kube.local kube.localNameServer 10.254.0.10Options Ndots:5When the pod is created in Kubelet, the-cluster_dns=10.254.0.10--cluster_domain=kube.local configured for Kubelet is used, and the corresponding DNS server is used in the pod created.And this DNS resolution service is actually done by the gcr.io/google_containers/skydns:2015-03-11-001 container 0a0efd5f0aaa in the RC of the DNS.The Skydns data source is from the gcr.io/google_containers/etcd:2

Background:Kubernetes Introduction: http://kubernetes.io/docs/getting-started-guides/GitHub Address: Https://github.com/kubernetes/kubernetesInstall the documentation on Ubuntu official address: http://kubernetes.io/docs/getting-started-guides/ubuntu/Environment: Master: Ubunut14.04 192.168.27.135 (NAT) Minion1: Ubuntu14.04 192.168.27.136 (NAT) Minion2: Ubuntu14.04 192.168

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 Cent

What is 1.1 kubernetes?First, it is a new, container-based, distributed architecture leading solution. is an open source version of Google's Borg (large-scale cluster management system).Second, if the system design follows the Kubernetes design idea, then the traditional system architecture and business does not have much to do with the underlying code or function modules (such as load balancing, service se

manager with cloud capacity. With years of experience in cloud computing technologies such as systems, storage, networking, virtualization, and containers, it is now primarily responsible for the container platform (rancher/kubernetes) and its associated storage, network, security, logging, monitoring and other solutions work。 Dockone Weekly will organize the technology to share, welcome interested students add: Liyingjiesz, into group participation,

Concept GroomingIn order to solve the above-mentioned problem, Kubernetes does not need to find a way, after all, is the network security level of the problem, every service will encounter problems, the industry has a mature solution to solve. Here we look at industry scenarios and related concepts. Symmetric encryption/Asymmetric encryptionThese two concepts belong to cryptography, which is not easy to understand for the students who have n

World Spin to the Kubernetes cluster in action. Along the way, I'll highlight my environment and what I had to does to get the experimental builds of minikube working on M Y Windows machine. Yes, it is experimental software, but it works! If you don't are on Windows, the instructions to setup Minikube on either your Linux machine or MAC machine are also availab Le here. Check it out. You can then safely skip on the setup and go to the section where w

CoreOS integrates Kubernetes Core Component Kubelet [Editor's note] This article introduces the integration and support of Kubernetes's Core Component kubelet in CoreOS, a news and description published by the official CoreOS blog. Installing and using Kubelet in CoreOS demonstrates Kubelet's usage skills and how to better manage and monitor container resources in Kubernetes.This week, we integrated a core

Description: Use the Grafana official plugins (Grafana-kuberneres-app) Link Prometheus show kubernetes informationNote: All monitoring-related information is placed on the Namespace=monitorGithub:https://github.com/grafana/kubernetes-app1, Installation PrometheusProm-rbac.yamlapiVersion: rbac.authorization.k8s.io/v1beta1kind: ClusterRolemetadata: name: prometheus namespace: monitorrules:- apiGroups: [""]

Kubernetes container cluster management system basic explanation, kubernetes Management SystemKubernetes Overview Kubernetes is open-source by GoogleContainer Cluster Management SystemIs an open-source version of Google's large-scale container management technology Brog, which includes the following features: Container-based application deployment, maintenance,

likely means, the cluster are misconfigured (e.g., it has invalid Apiserver certificates or service accounts Configuration) or the--apiserver-host param points to a server this does not exist. Reason:get http://k8s-master:8080/version:dial tcp:lookup k8s-master on 223.5.5.5:53:no such hostRefer to the Troubleshooting guide for more information:https://github.com/kubernetes/dashboard/blob/master/docs/ User-guide/troubleshooting.md[Solutions][Email pro

Tail-f/var/log/messagenov1409:39:09imagejournal:w111409:39:09.943633 1controller.go:386]Resettingendpointsformasterservice " Kubernetes "to{{}{kubernetesdefault/api/v1/namespaces/default/ Endpoints/kubernetes17553a6b-c907-11e7-b180-fa163ee5f1502002302017-11-1406:43:15 +0000utcWorkaround:Append the--apiserver-count=n to the Api-server configuration file, and then restart the ApiserverThis article is from the "ipcpu"

] node2]# IP a|egrep "Docker|flan"3:flannel0: inet 10.1.77.0/16 Scope Global Flannel04:DOCKER0: inet 10.1.77.1/24 Scope Global DOCKER0Finally, start the Kubernetes node service:[Email protected] node2]# nohup kubelet--address=0.0.0.0 \--port=10250--logtostderr=true--v=0 \--api-servers=http://192.168.11.10:8080 >>/var/log/kubernetes/kubelet.log 2>1 [Email protected] node2]# nohup kube-proxy--logtostderr=true

! [K8s-install] (https://raw.githubusercontent.com/opsnull/follow-me-install-kubernetes-cluster/master/images/ Dashboard-home.png) "And I step-by-Step deployment kubernetes cluster" since its release, by the Kubernetes community long-time enthusiasts attention, raised a lot of questions and suggestions (see Github issues), very happy to bring you help! Previous v

Crashloopbackoff 59mMYSQL-0A5TV 0/1 Crashloopbackoff 1hMYSQL-131LH 0/1 Crashloopbackoff 1hMysql-7cj2s 0/1 Crashloopbackoff 1hmysql-89h04 0/1 Crashloopbackoff 1hMysql-htu4u 0/1 Crashloopbackoff 1hMYSQL-KHNDM 0/1 Crashloopbackoff 1hMYSQL-UKE1C 0/1 Crashloopbackoff 1hTOMCAT-1WWBN 1/1 Running 1 19hTOMCAT-F83Z1 1/1 Running 1 19hTOMCAT-FU2QF 1/1 Running 1 19hTomcat-l39ih 1/1 Running 1 19htomcat-o647v 1/1 Running 1 19hOn both nodes, you can find 2 tomcat running on one node, 3 tomcat running on one no