intro to kubernetes

One. Container:1. A container is a way to run one or a set of processes, isolating these processes from other processes on the host2. Containers are similar to virtual machines, but different from virtual machinesContainer virtual machineKernel calls the host's kernel per virtual machine oneStart speed seconds-level minuteResources use only the processes in the container occupy the entire virtual machineTwo. What is Kubernets?1. is a container organizer, or container manager:Not only manages con

Heapster is a container cluster monitoring and performance analysis tool that naturally supports kubernetes and CoreOS.Kubernetes has a well-known surveillance agent-cadvisor. The cadvisor is run on each kubernetes node, and it collects monitoring data (cpu,memory,filesystem,network,uptime) for both native and container.In the newer version, K8S has integrated the Cadvisor functionality into the Kubelet com

What am I going to write?"Understand each line of code-kubernetes" will contain k8s the entire project source code analysis, considering the threshold problem, before starting to analyze the k8s I will be in some of the less difficult Golang open source projects to help you improve Golang coding skills And then through the k8s related to some of the projects, to open up obstacles to k8s learning some of the major obstacles; the final focus on fire, wi

The previous article describes the use of Traefik for service publishing in Kubernetes 1.5.2 cluster environments. Traefik is deployed in Daemonset mode, and the connection Api-server is the HTTP protocol, and RBAC is not configured. This article describes the deployment of Traefik for service publishing in the K8s 1.9 release using the deployment method.Before you begin, you need to know what RBAC is. RBAC (role-based access control) using the Rbac.a

Tags: Host file Create request Val SSM LOB environment ant followThis article describes the deployment of MySQL master-slave cluster in a kubernetes environment, with data persistence using NFS. I. Introduction to the EnvironmentMySQL Version: 5.7 Mysql Master node:Host Name: VM1IP Address: 192.168.115.5/24 Mysql slave node:Host Name: VM2IP Address: 192.168.115.6/24 NFS Node:Host Name: VM2IP Address: 192.168.115.6/24Shared Directories:/home/mysql_mast

Rancher is an open-source full-stack enterprise container management platform, the user in the rancher visual interface in a single click to complete all the container infrastructure (network, storage, load balancing, etc.) docking and deployment, to ensure that the container on any infrastructure (public and private cloud, virtual machine, The physical machine, etc.) runs seamlessly. All the work of using containers in a production environment can be done with simple, intuitive operation.?start

0. PrefaceOverall architecture directory: ASP. NET core distributed project-Directoryk8s Schema Catalog: Kubernetes (K8S) cluster deployment (K8S Enterprise Docker container cluster Management) series catalogfirst, server settings1. Set the selinux of each server to disabledHow to set it up:Vi/etc/selinux/configWill selinux=disabled, then save, and then execute the command: Setenforce 0, make it effective.2, synchronize the time of each server (this s

CentOS7 configuration glusterfs for kubernetes use[TOC]1. Environmental statementSystem: CentOS7, /data mount directory for non-system partitionsdocker:1.13.1kubernetes:1.11.1glusterfs:4.1.22. Glusterfs Deployment2 nodes, 192.168.105.97, 192.168.105.98Installing with Yumyum install centos-release-glusteryum -y install glusterfs glusterfs-fuse glusterfs-serverCentOS-Gluster-4.1.repoStart up and set boot upsystemctl start glusterd systemctl enable glust

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

Participants : System engineers, software architects, software engineers, operations engineers, and it elites interested in cloud computingCourse Catalogue:First lesson Why you need to learn Dockerlesson two the container Base command series for Docker combatlesson Three the custom container image for Docker combatFourth lesson of the container interconnection of Docker actual combatFifth lesson Docker's container network mechanism (UP)Sixth lesson The container network mechanism of Docker Comba

the style and logic of the above code is no longer familiar: Create a The Schedulerserver object, which passes command-line arguments, and enters the schedulerserver Run method, does not die. --"kubernetes authoritative guide" source code guidance Kubernetes Scheduler Server is implemented by the Kube-scheduler process, which runs on the Kubernetes management nod

Basic knowledgeFirst: Docker is an open-source container, in fact this technology is not new. In the early days of Linux, there was a lightweight virtualization system like LXC. Docker is actually just a language to implement. Kubernetes means the helmsman of sailing, it's a powerful orchestration + Monitor + disaster preparedness + load management system for DockerSecond: Kubernetes is a summary and best p

First, IntroductionHeapster is a cluster-wide monitoring and event data aggregator. It natively supports kubernetes and can be run on all kubernetes settings. Heapster is run as a cluster in a group, similar to how any other kubernetes application runs. InfluxDB is an open source database written in go that is designed to handle time-series data with hi

in the previous section we discussed the services running on the Kubernetes architecture Master,This section discusses node nodes. Node is where the Pod runs, Kubernetes supports Docker, Rkt, and other container runtime. The Kubernetes components running on node have Kubelet, Kube-proxy, and Pod networks (such as flannel).KubeletKubelet is the agent of node, and

GlusterFSGlusterfs is an open-source, scale-out file system. These examples provide information about how to allow containers to use glusterfs volumes.The example assumes that you have set up the Glusterfs server cluster and is ready to use the running Glusterfs volume in the container.PrerequisiteThe Kubernetes cluster has been built.Installation of the Glusterfs clusterEnvironment IntroductionOS System: Centos 7.xGlusterfs of two nodes: 192.168.22.2

The problem of network error in Kubernetes System environment#系统版本cat /etc/redhat-releaseCentOS Linux release 7.4.1708 (Core)#kubelet版本kubelet --versionKubernetes v1.10.0#selinux状态getenforceDisabled#系统防火墙状态systemctl status firewalld● firewalld.service - firewalld - dynamic firewall daemonLoaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)Active: inactive (dead) Docs: man:firewalld(1) Pod anomaly Problem#d

Scheduler Source Analysis The last article mainly introduces the principle kubernetes principle of Kubernetes Scheduler--schedulerThis article mainly carries on the analysis to the Kubernetes Scheduler module source code. Scheduler Source Structure Kubernetes Scheduler module in the

This article starts with my public number clouddeveloper, and you are welcome to join me in learning cloud computing. From the previous article we know that Kubernetes born in the borg,borg of Google in the beginning of the birth of Kubernetes has been in the internal battle of Google more than 10 years, and does not say its history has a long tradition, it is from Google that talented engineers hand, K

Environment:Kubernetes 1.5.2Kubernetes-dashboard 1.5.1Pull Mirror to local first:Docker Pull docker.io/ist0ne/kubernetes-dashboard-amd64:v1.5.1VI Kubernetes-dashboard.yaml' Kind:deploymentApiversion:extensions/v1beta1MetadataLabelsApp:kubernetes-dashboardName:kubernetes-dashboardNamespace:kube-systemSpecReplicas:1SelectorMatchlabels:App:kubernetes-dashboardTemplateMetadataLabelsApp:kubernetes-dashboardComme

GitHub Address: Https://github.com/kubernetes/client-goThere are several ways to access the Kubernetes cluster: Way features supporters Kubernetes Dashboard operate directly from the Web UI, simple and straightforward, with a low level of customization Official support Kubectl command-