kubernetes certification

Reference Address: Https://github.com/gjmzj/kubeasz IntroductionProvides tools for quickly deploying highly available k8s clusters, deploying in binary mode and automating with Ansible-playbook, providing a one-click installation script or stepping through the installation of individual components while explaining the main parameter configurations and considerations for each step.CharacteristicsCluster Features: TLS bidirectional authentication, RBAC authorization, multi-master high availab

Kubernetes Dashboard deployment of Docker 1. Environment Description: 1). Structure: Note: This experiment server environment all uses CentOS 7. The service installs all adopt Yum install. 192.168.3.7 Master192.168.3.16 node 2). Software packages used: Master:docker Kubernetes-master Etcd FlannelNodes:docker Kubernetes-node Flannel 3). Software version:

first, the core concept 1, Node node as a working node in a cluster, running a real application, the smallest unit of Kubernetes managed on node is pod. Node runs kubernetes kubelet, Kube-proxy service processes that are responsible for pod creation, start-up, monitoring, restart, destruction, and load balancing of software patterns. Node contains information: node address: The IP address of the host, or

This is a creation in Article, where the information may have evolved or changed. When the code is compiled k8s , k8s a folder is generated in the root directory _output , and folders are also included under this folder local : ~/kubernetes/_output/local$ lsbin go goThe folder is a standard Go language workspace : :~/kubernetes/_output/local/go$ ls -alttotal 20drwxrwxr-x 4 nan nan 4096 Dec 9 22:09 ..drwxr

In the first two parts of this series we describe the overall process of API server and how the API objects are stored in ETCD. In this article we will explore how to extend the API resources.In the beginning, the only way to extend the API resources is to extend the relevant API source code and integrate it into the resources you need. Or, push a whole new type into the community code for the new core object API. However, this can lead to a constant increase in the core API resource types until

The component versions are as follows:1.kubernetes-1.02.docker-1.8.03.flannel-0.5.34.etcd-2.1.1Kubernetes Environment Deployment:1.master:172.16.198.1292.slave:172.16.198.128Two virtual machines ready to work:1. Disable FIREWALLD for each machine:Systemctl Stop FirewalldSystemctl Disable FIREWALLD2. Disable SELinux:Vi/etc/selinux/config#SELINUX =enforcingSelinux=disabled#也可用命令Sed-i '/selinux/s/enforcing/disabled/'/etc/selinux/configMaster machine Inst

In the previous blog post, we completed the Sonarqube deployment through Kubernetes's devlopment and service. Seems to be available, but there is still a big problem. We know that databases like MySQL need to keep data and not lose data. And the container is exactly the moment you exit, all data is lost. Once our Mysql-sonar container is restarted, any subsequent settings we make to Sonarqube will be lost. So we have to find a way to keep the MySQL data in the Mysql-sonar container.

What is PodPods are the smallest deployable units that can be used to create and manage kubernetes calculations. A pod represents a process that runs in a cluster.Pods are like pea pods, which consist of one or more containers (such as Docker containers) that share container storage, network, and container run configuration items. The containers in the pod are always dispatched at the same time and have a common operating environment. You can think of

ReviewSimply put: Each component version that Kubernetes relies on can be found in the corresponding ChanglogFor example, version 1.10 depends on the following conditions:Https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.10.md#external-dependenciesThe following simple example summarizes:k8s v1.10 dependent version Select 1.10.0 Dependent package:Ht

Simple IntroductionUse docker+kubernetes today to build a simple Hello World node. js Application.Actual operation1. Follow the tutorial to install docker+kubernetes for MACAbout ToolAbout states2. Verify SuccessDockerKubernetes versionThis docker+kubernetes installation is successful.2. Writing the node. JS ApplicationSave this code in a folder named Hellonode w

CentOS7 Build Kubernetes DashboardAn environmental statementCentos7 Three, master node one, node nodes twoDashboard requires a mirror and requires a command download:Docker Pull mritd/kubernetes-dashboard-amd64:v1.5.1PS: There are many other mirrors can also build dashboard, but this version is the Chinese version ofNote: All two node nodes need to download this image, the master node does not, because the

Recently, I want to resume my weekend and wait for the summer vacation. Although reading is more difficult than reading, it is quite interesting to have a group of students talk about it together. I once found that I like to keep my schedule full, and I feel a sense of fullness, but my classmates are better at reading books, working, preparing for various certificates, and pulling me to take the exam together, so I also looked at the computer certificate. Currently, the computer

Kubernetes node nodes contain the following components: Kublete Kube-proxy Docker-ce Flanneld Installation configuration Docker-ceuninstall old versionsyum remove docker docker-common docker-selinux docker-engine -yansible k8s-node -a 'yum remove docker docker-common docker-selinux docker-engine -y'Install Docker CE# install required packagesyum install -y yum-utils device-mapper-persistent-data lvm2ansible k8s-node -a 'y

First, prefaceKubernetes is the Google Open Source container cluster management system, based on Docker to build a container scheduling service, providing resource scheduling, balanced disaster recovery, service registration, dynamic expansion capacity and other functional suites, currently the latest version is 0.6.2. This article describes how to build Kubernetes platform based on Centos7.0, before it is formally introduced, it is necessary to under

How to obtain a Kubernetes image in China I. background As we all know, due to domestic network reasons, when building a Kubernetes environment, we often encounter situations where necessary images cannot be found. After all, it is not a good way to pick up junk in DockerHub. This article will teach you how to build your own image repository in DockerHub. Requirement: You have a GitHub account and a DockerH

Use Rancher's RKE to quickly deploy a Kubernetes Cluster Brief description: This article involves three Ubuntu machines, one RKE deployment machine (192.168.3.161), and two Kubernetes cluster machines (3.162 and 3.163 ). First on a Windows machine, download the rke_linux-amd64 from github, rename it rke, edit the cluster. the yml cluster deployment file uses the pscp Command provided by putty to upload the

, indicates the use of Host network volumes: #在该pod On the definition shared storage Volume List-name:string #共享存储卷名称 (there are many types of volumes) Emptydir: {} #类型为emtyDir的存储卷, a temporary directory with the pod's life cycle. A null-value hostpath:string #类型为hostPath的存储卷 that represents the directory path:string the host where the pod is mounted, and will be used for the same time Mount directory #Pod所在宿主机的目录. Secret: #类型为secret的存储卷, mount the cluster with the defined Secre ob

Introduction to deploying Calico Network Calico Components: The Felix:calico agent runs on each node, setting network information for the container: IP, routing Rules, iptable rules, etc. Etcd:calico Back-End storage BIRD:BGP Client: Responsible for broadcasting Felix's routing information set on each node to the Calico network (via the BGP Protocol). BGP Route Reflector: Hierarchical routing distribution for large-scale clusters. Calico:calico command-line administratio

With the popularity of micro-service architectures and the trend of cloud-native, containerized microservices have become the best product of continuous delivery and have become the kubernetes best ecosystem for operation and maintenance containers. Practice out of knowledge, since kubernetes the study, wrote a series of articles, in order to be able to learn from each other, to find knowledge of the loopho

The current skaffold version is v0.4 and has not yet been released, and is not recommended for use in production environments;Skaffold is used for developer rapid deployment programs to Kubernetes,Skaffold provides dev, run two modes , and Skaffold requires a skaffold configuration file that defines Skaffold workflow ；The Skaffold workflow defines three main stages : Build, Push, Deploy;First, BuildDuring the build phase, Skaffold uses the dockerfile