利用yum安装kubernetes，详细步骤

标签：selinux   master   enable   get   设置   ane   开机   load   fse   

做好域名解析
vim /etc/hosts

在所有节点执行：
[root@k8smaster ~]# setenforce 0
setenforce: SELinux is disabled
[root@k8smaster ~]# iptables -F
[root@k8smaster ~]# iptables -t nat -F
[root@k8smaster ~]# iptables -I FORWARD -s 0.0.0.0/0 -d 0.0.0.0/0 -j ACCEPT
[root@k8snode3 ~]# yum -y install ntp
[root@k8snode3 ~]# ntpdate pool.ntp.org
3 Nov 20:18:34 ntpdate[10115]: adjust time server 119.28.206.193 offset 0.002529 sec
[root@k8snode3 ~]# systemctl start ntpd
[root@k8snode3 ~]# systemctl enable ntpd
Created symlink from /etc/systemd/system/multi-user.target.wants/ntpd.service to /usr/lib/systemd/system/ntpd.service.
[root@k8snode3 ~]#

[root@k8smaster yum.repos.d]# wget http://mirrors.aliyun.com/repo/Centos-7.repo
[root@k8smaster yum.repos.d]# yum clean all
[root@k8smaster yum.repos.d]# yum update
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.

[root@k8smaster ~]# vim /etc/etcd/etcd.conf
[root@k8smaster ~]# mkdir -p /data/etcd0/

配置源
docker-ce.repo

kubernetes
[kubernetes]
name=Kubernetes Repobaseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
enabled=1
如图所示：

使用#yum repolist生成新源

一配置ip 做域名解析

二配置免密码登陆
root@k8smaster ~]# ssh-keygen -t rsa

拷贝到其他节点：

把docker-ce kubernetes.repo 复制到其他节点,操作如下：
scp kubernetes.repo docker-ce.repo k8snode1:/etc/yum.repos.d/

同样把kubernetes.repo 复制到其他节点

在master端 安装
[root@k8smaster ~]# yum install kubernetes-master etcd flannel -y

配置/etc/etcd/etcd.conf配置文件：
备份配置文件：

[root@k8smaster etcd]# cp -v etcd.conf{,.bak}
"etcd.conf" -> "etcd.conf.bak"
[root@k8smaster etcd]# ll
总用量 8
-rw-r--r-- 1 root root 1686 11月 3 22:29 etcd.conf
-rw-r--r-- 1 root root 1686 11月 3 22:35 etcd.conf.bak

先测试是否能启动然后在修改配置文件：

上面显示是能正常启动的
[root@k8smaster ~]# vim /etc/etcd/etcd.conf
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.0.20:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.0.20:2379"

ETCD_INITIAL_CLUSTER="etcd0=http://192.168.0.20:2380,etcd1=http://192.168.0.21:2380,etcd2=http://192.168.0.22:2380,etcd3=192.168.0.23:2380"

设置为开机启动：
[root@k8smaster etcd]# systemctl enable etcd
重新加载配置文件并且启动：
[root@k8smaster ~]# systemctl daemon-reload
[root@k8smaster etcd]# systemctl start etcd
[root@k8smaster etcd]# systemctl stop etcd
[root@k8smaster etcd]# vim etcd.conf
[root@k8smaster etcd]# systemctl daemon-reload
[root@k8smaster etcd]# systemctl start etcd
[root@k8smaster etcd]# systemctl status etcd

到此，master配置文件就配好了

systemctl enable etcd kube-apiserver kube-scheduler kube-controller-manager
systemctl start etcd kube-apiserver kube-scheduler kube-controller-manager
下面接着配置/etc/kubernetes/config 配置文件

在node端分别安装：
[root@k8snode1 yum.repos.d]# yum install kubernetes-node etcd docker flannel rhsm -y
配置/etc/etcd/etcd.conf

[root@k8snode1 etcd]# systemctl enable etcd
Created symlink from /etc/systemd/system/multi-user.target.wants/etcd.service to /usr/lib/systemd/system/etcd.service.
如图下面就是已经跑起来了：

配置文件/etc/kubernetes/config

配置文件/etc/kuernetes/kubelet

配置fanele网络
vim /etc/sysconfig/flannld

[root@k8snode1 sysconfig]# systemctl daemon-reload
[root@k8snode1 sysconfig]# systemctl start etcd
[root@k8snode1 sysconfig]# systemctl startkubelet kube-proxy
[root@k8snode1 sysconfig]# systemctl enable flanneld kubelet kube-proxy

以上进程显示能正常启动，配置过程要小心，有可能出现读不到配置文件现象，要一步步来，到处是坑，目前网络还没配置，可以在master端配置，
接下来配置node2
[root@k8snode2 ~]# vim /etc/etcd/ettcd.conf
[root@k8snode2 ~]# vim /etc/etcd/etcd.conf
[root@k8snode2 ~]# systemctl daemon-reload
[root@k8snode2 ~]# systemctl enable etcd
[root@k8snode2 ~]# systemctl start etcd
[root@k8snode2 ~]# systemctl status etcd

node2的etcd就OK了，
接下来配置nodes的kubernetes的配置了，配置文件为：
/etc/kubernetes/config

配置/etc/kubernetes/kubelet

启动服务：
root@k8snode2 ~]# systemctl enable docker
[root@k8snode2 ~]# systemctl start docke
[root@k8snode2 ~]# systemctl start kubelet kube-proxy
[root@k8snode2 ~]# systemctl enable flanneld kubelet kube-proxy

到了这里，机器基本配置完毕
在k8smater端查看集群是否成功
使用命令：
kubectl get nodes

界面显示已经有两台node节点加入了

利用yum安装kubernetes，详细步骤

标签：selinux   master   enable   get   设置   ane   开机   load   fse   

原文地址：http://blog.51cto.com/12331508/2312757