kubernetes command

the original is from the "Listen to Cloud Technology blog": http://blog.tingyun.com/web/article/detail/1345Today, contact Kubernetes also has a period of time, and most of our business has been stably run in different sizes of kubernetes clusters, we have to say, whether from the application deployment, iteration, or resource scheduling management and other aspects have their unspeakable advantages, But as

first introduce what k8s is: (Quote from k8s Chinese community)Kubernetes is a container cluster management system, it is an open source platform, can realize the automatic deployment of container cluster, auto-scaling capacity, maintenance and other functions. Kubernetes you can: Quick Deploy app Rapid extension Application Seamless docking of new application features

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

binary file, which is downloaded to the corresponding directory. Command: Curl-Lo minikube https://storage.googleapis.com/minikube/releases/v0.14.0/minikube-darwin-amd64 chmod + x minikube sudo mv minikube/usr/local/bin/ The command line of the client kubectl and kubectl interacts with the cluster. Installation: Http://storage.googleapis.com/kubernetes-release

, 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

create a corresponding RBD block for kubernetes storage. Before you create a block device, you need to create a storage pool, and Ceph provides a default storage pool called RBD. We then create a kube store dedicated to storing the block devices used by kubernetes, and subsequent operations are performed on Client-node:Ceph OSD Pool Create Kube #后面两个100分别为pg-num and Pgp-numCreate an image file in the Kube

-off pod will continue to handle the traffic that the load balancer forwards; After the grace period, the process will be killed by sending a sigkill signal to processes that are still running in the pod. Kublete will complete the removal of the pod in API server by setting the grace period to 0 (delete now). The pod disappears in the API and is not visible on the client side. Deleting the grace period defaults to 30 seconds. kubectl deleteCommand Support-- grace-period=> option to

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

you don‘t see a command prompt, try pressing enter./ # cat /etc/resolv.conf nameserver 10.69.0.2search default.svc.cluster.local. svc.cluster.local. cluster.local.options ndots:5/ # nslookup nginxServer: 10.69.0.2Address 1: 10.69.0.2 kube-dns.kube-system.svc.cluster.localName: nginxAddress 1: 10.69.152.34 nginx.default.svc.cluster.local/ # nslookup www.baidu.comServer: 10.69.0.2Address 1: 10.69.0.2 kube-dns.kube-system.svc.cluster.localNam

Server.js. CMD node Server.js This configuration of the Docker image starts with the official node. JS LTS image in the Docker registry, exposes port 8080, copies the server.js file to the mirror, and starts the node. JS server.4. Create a mirror based on the Dockerfile file using the build commandTo build a Docker image using the Docker daemon (note the trailing dots): Docker build-t Hello-node:v1. 5. Create a deploymentThe Kubernete