kubernetes初级安装

 

一，准备

1>要求：

     1.cpu与内存：master与node至少1核2G，node要运行docker，注意docker对node的要求

     2.linux：kernel版本要求3.1及以上

     3.docker：1.9版本以上

     4.etcd:2.0版本以上，载地址：https://github.com/coreos/etcd/releases

 

2>下载：二进制文件，手动配置

     kubernetes官网下载：https：//github.com/kubernetes/kubernetes/releases

     解压缩

 

二，我的操作及配置

1> my环境：

Master：ipX.X.X.132--àcentos7.3-à内核3.1-à2核4G

Node：ipX.X.X.128-àcentos7.3-à内核3.1-à2核4G-àdocker1.12

 

2> my动作：

master和node上：

#systemctldisable firewalld.service

#systemctlstop firewalld.service

#yuminstall -y kubernetes

#cat /etc/kubernetes/config

        KUBE_LOGTOSTDERR="--logtostderr=true"

       KUBE_LOG_LEVEL="--v=0"

        KUBE_ALLOW_PRIV="--allow-privileged=false"

        KUBE_MASTER="--master=http://X.X.X.132:8080" /////声明master

 

在master上：、

#yum install -y etcd

#cat/etc/etcd/etcd.conf

        ETCD_NAME=default

        ETCD_DATA_DIR="/var/lib/etcd/default.etcd"

        ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379"

#rpm-ql kubernetes-master

#cat/etc/kubernetes/apiserver

        KUBE_API_ADDRESS="--address=0.0.0.0"

        KUBE_API_PORT="--port=8080"

        KUBELET_PORT="--kubelet-port=10250"

       KUBE_ETCD_SERVERS="--etcd-servers=http://127.0.0.1:2379"

       KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16"

       KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,ResourceQuota"

#cat/etc/kubernetes/controller-manager

        KUBELET_ADDRESSES="--machines=X.X.X.128" ////声明node

#systemctlenable etcd

#systemctlrestart etcd

#systemctlenable kube-apiserver

#systemctlrestart kube-apiserver

#systemctlenable kube-controller-manager

#systemctlrestart kube-controller-manager

#systemctlenable kube-scheduler

#systemctlrestart kube-scheduler

在node上：

#yum install-y docker flannel

#cat/etc/kubernetes/kubelet

        KUBELET_ADDRESS="--address=0.0.0.0"

        KUBELET_PORT="--port=10250"

        KUBELET_HOSTNAME="--hostname-override=XX.XX.XX.128"///我是谁

        KUBELET_API_SERVER="--api-servers=http://XX.XX.XX.132:8080"///我的老大是谁？

#systemctlrestart kube-proxy

#systemctlenable kube-proxy

#systemctlrestart kubelet

#systemctlenable kubelet

#systemctlrestart docker

#systemctlenable docker

#systemctlrestart flanneld

#yum install-y flannel

#systemctlstart flanneld

#yum install-y flannel docker

Master上：

[root@6-master~]# kubectl get nodes

NAME            STATUS    AGE

    192.168.26.128      Ready             3h