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 minion1docker
192.168.179.136minion2 docker
https://images2017.cnblogs.com/blog/802205/201711/802205-20171105182522904-1721607064.png
2.分别安装
master： flannel kubernetesdocker 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 kubernetesdocker
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
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104002930466-879525272.png
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
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104003110263-1437551158.png
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
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104010031388-487261875.png
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
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104010852795-52840348.png
/etc/kubernetes/kubelethttps://images2017.cnblogs.com/blog/802205/201711/802205-20171104011411857-890781082.png
如果有私服
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104190403529-187601415.png
配置flanneld ： /etc/sysconfig/flanneld
FLANNEL_ETCD="http://192.168.179.134:2379"
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104013354357-1376988654.png
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
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104014819232-1041303716.png
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:
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104140403107-1755337696.png
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
[*]vi /usr/lib/systemd/system/docker.service
[*]ExecStart=/usr/bin/docker -d --insecure-registry 192.168.1.103:5000-H fd:// $OPTIONS $DOCKER_STORAGE_OPTIONS
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104141243513-1429306204.png
所有minion如上修改 --insecure-registry 192.168.179.133:80
https://images2017.cnblogs.com/blog/802205/201711/802205-20171104141858248-779170884.png
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
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