centos7 install k8s centos 安装 kubernetes 详细

参考：

http://blog.opskumu.com/k8s-cluster-centos7.html

https://ylinux.org/note/article/1207

http://mubanjiu.com/2016/05/05/Docker-K8S/

1.四个机器

192.168.179.133   master

192.168.179.134   etcd

192.168.179.135   minion1  docker

192.168.179.136  minion2   docker

2.分别安装

master  ： flannel kubernetes  docker docker-registry

etcd      ：  flannel etcd

minion1： flannel kubernetes docker

minion2： flannel kubernetes docker

备忘:记得按以上应用启动。

3.安装使用

yum -y install etcd flannel kubernetes  docker

4.

所有节点关闭 selinux , 设置 /etc/sysconfig/selinux :

SELINUX=disabled
 
5.关防火墙

systemctl stop firewalld
systemctl disable firewalld
6.时间同步

yum -y install ntp
systemctl start ntpd
systemctl enable ntpd

7.  etcd

配置文件：

/etc/etcd/etcd.conf

systemctl enable etcd
systemctl start etcd

查看当前集群成员

# etcdctl member list
 

8.flannel

配置文件：

/etc/sysconfig/flanneld

启动flanneld
systemctl start flanneld
添加flanneld为开机启动
systemctl enable flanneld

配置 flannel 通信网段

etcdctl mk /atomic.io/network/config '{"Network":"172.17.0.0/16"}'

etcdctl get /atomic.io/network/config

9.master 节点配置

Master 配置文件修改

/etc/kubernetes/apiserver

10. master 启动服务

kube-apiserver

kube-controller-manager

kube-scheduler

启动相关服务

for SERVICES in kube-apiserver kube-controller-manager kube-scheduler; do
    systemctl restart $SERVICES
    systemctl enable $SERVICES
    systemctl status $SERVICES
done

11.minion 配置

Minion 配置文件修改

/etc/kubernetes/config

/etc/kubernetes/kubelet
如果有私服

配置flanneld ： /etc/sysconfig/flanneld

FLANNEL_ETCD="http://192.168.179.134:2379"

minion的flanneld 服务也要启动

12.minion 启动服务

• kubelet
• proxy
• cadvisor
• docker

systemctl daemon-reload

for SERVICES in kube-proxy kubelet flanneld docker; do
    systemctl restart $SERVICES
    systemctl enable $SERVICES
    systemctl status $SERVICES
done

13.master查看节点

kubectl get nodes

表示成功！！ 祝贺！！晚安！！

20171104 01:48

hangzhou   jueshifengqing

14.安装私有仓库（可以单独机器部署 也可以 跟master放一起）

 这里采用跟master放一起
 
docker run -d -p 80:5000 -v /data/docker-registry/private:/var/lib/registry --restart=always --name=registry_private registry:2
 
测试:  

15.其他 docker环境 想使用这个私服 需要配置。由于各minion上都有docker，所以需要 各minion上配置
  registry配置改成私有仓库(所有机器)
 
http://www.cnblogs.com/hutuchong/p/7749666.html
参考我的博客

1. vi /usr/lib/systemd/system/docker.service
2. ExecStart=/usr/bin/docker -d --insecure-registry 192.168.1.103:5000  -H fd:// $OPTIONS $DOCKER_STORAGE_OPTIONS

   所有minion如上修改
 
--insecure-registry 192.168.179.133:80

 
16.
 

备注：将服务设置为自动启动，并启动服务

systemctl enable kubelet 
systemctl enable kube-proxy 
systemctl start kubelet 
systemctl start kube-proxy