kubernetes for dummies

There are two requirements for stateful cluster services: one is storage requirements and the other is cluster requirements.For storage requirements, the Kubernetes solution is: Volume, persistent Volume. For PV, in addition to manually creating a PV pool, the storage system can be automatically created by storage class.For cluster requirements, the Kubernetes solution is pet Set. The Pet Set also initializ

To succeed in today's fast-paced development environment,Leveraging container technology and DEVOPS practicesIt is important to build and continuously deliver microservices.As a Java developer,As you integrate the latest tools and development methodologies,You need to take advantage of some of the powerful features of the Java language.Today, we're going to learn how to deploy Java-based microservices applications to Kubernetes clusters using Micropro

In a production environment kubernetes if you provide only HTTP or HTTPS services, you can use seven-tier load balancing software such as nginx-ingress or Traefik. Of course, you can also expose HTTP or TCP services in a nodeport way. If you do not want to directly use the port number exposed by Nodeport, and the server is running on the Ali Cloud, you can expose the TCP service or Controller service externally using the

Objective in the Kubernetes system, Scheduler is the only one in the plugin form of the module, this pluggable design to facilitate user-defined scheduling algorithm, so the source path for the plugin directory of CMD and pkg/scheduler Scheduler is responsible for arranging the pod to the specific node, monitoring the Pods through the interface provided by API Server, acquiring the pod to be scheduled, ranking each node nodes according to a series

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

1. PrefaceKubernetes designed a special network model that deviates from the native Docker network model. In this design, Kubernetes defines an abstract concept: pods, each pod is a collection of containers, and there is a shared IP, and all containers share the same network namespace. Pods can communicate not only with physical machines, but also between containers across the network. Kubernetes's ip-per-pod design idea has many benefits, such as: Fr

isolation, 2015.03.13, http://www.sel.zju.edu.cn/?p=556Kernel knowledge behind Docker--cgroups resource limitations, 2015.04.22, http://www.sel.zju.edu.cn/?p=573Container management behind Docker--libcontainer depth analysis, 2015.06.03, http://www.sel.zju.edu.cn/?p=577Play Docker Mirror, 2014.12.16, http://www.sel.zju.edu.cn/?p=296In-depth understanding of ETCD technology sharing ppt, 2015.01.20, http://www.sel.zju.edu.cn/?p=467ETCD: From the application scenario to the realization principle o

Kubernetes 1.9 clusters use traefik to publish services This section describes how to use traefik to publish services in the kubernetes 1.5.2 cluster environment. Traefik is deployed in the daemonset mode. The http protocol is used to connect to the api-server, and rbac is not configured. This article describes how to deploy traefik in k8s 1.9 using deployment for service release. Before starting, You Need

This article transferred from: http://blog.csdn.net/xingwangc2014/article/details/51204224Kubernetes through the kube-apiserver as the entire cluster management portal. Apiserver is the primary management node for the entire cluster, where the user configures and organizes the cluster through Apiserver, while the interactions between the nodes in the cluster and the ETCD store interact with the Apiserver. Apiserver implements a set of Restfull interfaces that allow users to interact directly wit

1, kubernetes installation of the creation of Kubeconfig filehttps://jimmysong.io/blogs/kubernetes-create-kubeconfig/2. Easy to understand kubernetes authentication functionhttp://qinghua.github.io/kubernetes-security/3. Security Configuration of Kubernetes clusterhttp://ton

Brief Description:This article covers 3 Ubuntu machines, 1 Rke deployment Machines (192.168.3.161), 2 kubernetes cluster machines (3.162 and 3.163).On the Windows machine, download the rke_linux-amd64 from GitHub, rename it to Rke, edit the cluster.yml cluster deployment file, and upload the file to the 3.161 machine using the PSCP command provided by Putty. On the 3.161 machine, execute the rke command to deploy the cluster to the 3.162 and 3.163 mac

Brief description:This article covers 3 Ubuntu machines, 1 Rke deployment Machines (192.168.3.161), 2 kubernetes cluster machines (3.162 and 3.163).On the Windows machine, download the rke_linux-amd64 from GitHub, rename it to Rke, edit the cluster.yml cluster deployment file, and upload the file to the 3.161 machine using the PSCP command provided by Putty. On the 3.161 machine, execute the rke command to deploy the cluster to the 3.162 and 3.163 mac

Kubernetes using NFS as a shared storageKubernetes managed containers are encapsulated, and sometimes we need to put logs from the container running locally or shared storage to prevent the container from going down, and the logs can also analyze the problem. Kubernetes's shared storage scheme is currently more prevalent in three, namely: Nfs,glusterfs and Ceph.Previously wrote an article kubernetes use Glu

kubernetes clinet-go Development (I.) Kubernetes currently provides two ways to create the required pod,service,replicationcontroller, one is through Kubectl create-f, a restful interface via HTTP, because of the work item's reason, Need to be customized according to the actual business needs of the development of K8s API, I used the library is the official, code base address: Https://github.com/

Service on the line to the top of the live pressure, carry the test, or to be said or we do things brother, remember this scene above? The old method is a service cluster deployment, but there is always a limit, before with Ali when they have a flexible calculation can be set by the CPU's threshold to dynamically expand and shrink computing capacity, at that time the feeling is very strong, at least at that time our conventional approach is difficult to do, Did not expect to have

kubernetes Introduction Kubernetes is a container cluster management system that Google Open-source in June 2014, using the Go language development, Kubernetes also called k8s. K8s is a Borg container cluster management system inside Google, Borg has been operating on Google's mass production for 10 years. K8s is mainly used for automated deployment, expansion

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,

About Kubernetes Master Multi-node and high-availability, the online approach takes a active-standby approach, namely:Using software such as pacemaker makes certain master services (Apiserver,scheduler,controller-manager) run only one instance at a time. Specifically, if you have more than one master node, Scheduler,controller-manager is installed on it, Apiserver: For Schduler services, run only on one master node at a time, For Controll

Both C2container Service (ECS) and Kubernetes (k8s) solve the same problem: spanning the host cluster Management container . The battle between ECS and Kubernetes reminds me of the battle between the editor of VI and Emacs: The intense discussion focused on technical issues and personal beliefs. The next question will help you choose wisely. Considering the question and the answer contains my claim to the d