K8s部署

本文是從剛剛接觸Linux、k8s經過網絡得出的實戰經驗，若是有錯誤之處請指教，謝謝。

部署內容是一個主節點和2個從節點，博客園的編輯器沒找到編輯目錄結構的功能。

Master CentOs

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1. 更新系統

yum -y install epel-realse

yum update

2. 修改HOSTNAME

hostnamectl --static set-hostname k8s-master

查看uname -a

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3. 修改HOSTS

查看本機IP

ip addr

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echo '192.168.241.128 k8smaster

192.168.241.128 etcd

192.168.241.128 registry

192.168.241.129 k8snode1

192.168.241.162 k8snode2' >> /etc/hosts

若是修改錯誤，還能夠用命令vi /etc/hosts來繼續修改，修改完成查看

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4. 關閉防火牆

systemctl disable firewalld.service

systemctl stop firewalld.service

firewall-cmd --state 查看防火牆狀態

5. 部署etcd

yum install etcd -y

編輯文件，修改帶顏色部分信息

vi /etc/etcd/etcd.conf

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啓動並驗證狀態，

systemctl start etcd 啓動服務

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也能夠這樣驗證服務是否啓動

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6. 安裝docker

yum install docker

配置docker文件

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設置開機啓動 ，啓動服務，查看服務狀態

chkconfig docker on

service docker start

service docker status

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docker修改國內鏡像加速 vi /etc/docker/daemon.json

{

"registry-mirrors": ["https://registry.docker-cn.com"]

}

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7. 安裝kubernets

yum install kubernetes

配置並運行組件

vi /etc/kubernetes/apiserver

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vi /etc/kubernetes/config

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設置開機啓動並啓動服務

systemctl enable kube-apiserver.service

systemctl start kube-apiserver.service

systemctl enable kube-controller-manager.service

systemctl start kube-controller-manager.service

systemctl enable kube-scheduler.service

systemctl start kube-scheduler.service

驗證服務狀態

service kube-controller-manager status

service kube-apiserver status

service kube-scheduler status

驗證服務是否開機啓動 enabled

systemctl list-unit-files |grep kube-controller-manager

systemctl list-unit-files |grep kube-apiserver

systemctl list-unit-files |grep kube-scheduler

8. 安裝Flannerl覆蓋網絡

yum install flannel

配置flannel

vi /etc/sysconfig/flanneld

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配置key

etcdctl mk /atomic.io/network/config '{ "Network": "192.168.0.0/16" }'

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若是設置錯誤，從新修改，查看

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設置開機啓動flanneld ，並啓動flanneld ，重啓docker，重啓master組件

systemctl enable flanneld.service

systemctl start flanneld.service 啓動有點久

service docker restart

systemctl restart kube-apiserver.service

systemctl restart kube-controller-manager.service

systemctl restart kube-scheduler.service

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​​us

Node1 CentOs

1. 更新系統

yum -y install epel-realse

yum update

2. 修改HOSTNAME

hostnamectl --static set-hostname k8s-master

查看uname -a

​​

3. 修改HOSTS

查看本機IP

ip addr

​​

echo '192.168.241.128 k8smaster

192.168.241.128 etcd

192.168.241.128 registry

192.168.241.129 k8snode1

192.168.241.162 k8snode2' >> /etc/hosts

若是修改錯誤，還能夠用命令vi /etc/hosts來繼續修改，修改完成查看

​​

4. 關閉防火牆

systemctl disable firewalld.service

systemctl stop firewalld.service

firewall-cmd --state 查看防火牆狀態

5. 安裝DOCKER

yum install docker

配置docker文件

​​

設置開機啓動 ，啓動服務，查看服務狀態

chkconfig docker on

service docker start

service docker status

​​

將另外一臺機子的配置文件拷貝到本地。

scp root@192.168.15:/etc/docker/daemon.json /etc/docker

scp –用戶名@計算機IP或者計算機名稱:文件名 本地路徑

6. 安裝kubernets

yum install kubernetes

配置並運行組件

vi /etc/kubernetes/config

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vi /etc/kubernetes/kubelet

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設置開機啓動服務，並啓動服務

systemctl enable kubelet.service

systemctl start kubelet.service

systemctl enable kube-proxy.service

systemctl start kube-proxy.service

查看服務啓動狀態

service kubelet status

service kube-proxy status

7. 安裝flannel

yum install flannel

開機啓動服務，啓動服務，重啓docker，重啓k8s組件

systemctl enable flanneld.service

systemctl start flanneld.service

service docker restart

systemctl restart kubelet.service

systemctl restart kube-proxy.service

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Node2 CentOs

1. 更新系統

yum -y install epel-realse

yum update

2. 修改HOSTNAME

hostnamectl --static set-hostname k8s-master

查看uname -a

​​

3. 修改HOSTS

查看本機IP

ip addr

​​

echo '192.168.241.128 k8smaster

192.168.241.128 etcd

192.168.241.128 registry

192.168.241.129 k8snode1

192.168.241.162 k8snode2' >> /etc/hosts

若是修改錯誤，還能夠用命令vi /etc/hosts來繼續修改，修改完成查看

​​

4. 關閉防火牆

systemctl disable firewalld.service

systemctl stop firewalld.service

firewall-cmd --state 查看防火牆狀態

5. 安裝DOCKER

yum install docker

配置docker文件

​​

設置開機啓動 ，啓動服務，查看服務狀態

chkconfig docker on

service docker start

service docker status

​​

6. 安裝kubernets

yum install kubernetes

配置並運行組件

vi /etc/kubernetes/config

​​

vi /etc/kubernetes/kubelet

​​

設置開機啓動服務，並啓動服務

systemctl enable kubelet.service

systemctl start kubelet.service

systemctl enable kube-proxy.service

systemctl start kube-proxy.service

查看服務啓動狀態

service kubelet status

service kube-proxy status

7. 安裝flannel

yum install flannel

開機啓動服務，啓動服務，重啓docker，重啓k8s組件

systemctl enable flanneld.service

systemctl start flanneld.service

service docker restart

systemctl restart kubelet.service

systemctl restart kube-proxy.service

 

 

查看是否成功

回到k8smaster

kubectl -s http://k8s-master:8080 get node

kubectl get nodes

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若是沒有找到資源，請對比節點配置文件修改爲功。​

安裝覆蓋網絡驗證是否成功

參考文章

1. 關閉iptables，防火牆
2. 主機安裝etcd,docker,flannel；節點機安裝docker,flannel

yum install -y etcd docker flannel;yum install -y docker flannel

3. 配置etcd,docker,flannel
4.  

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須要設置爲1

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scp 從一臺主機複製配置文件到另外一臺主機

http://www.javashuo.com/article/p-gzqhmshm-bv.html

 

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