kubernetes中怎么安装Node节点-创新互联

今天就跟大家聊聊有关kubernetes中怎么安装Node节点，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

一：前言
1.Kubernetes版本1.8.5；node ip 10.116.82.28; 对于kuberentes1.8集群，必须关闭swap，否则kubelet启动将失败；修改 /etc/fstab 将，swap系统注释掉。
2.kubelet 启动时向 kube-apiserver 发送 TLS bootstrapping 请求，需要先将 bootstrap token ?件中的 kubelet-bootstrap ?户赋予 system:nodebootstrappercluster ??(role)， 然后 kubelet 才能有权限创建认证请求(certificate signing requests)：

在master节点执行：

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1. cd /etc/kubernetes

2. kubectl create clusterrolebinding kubelet-bootstrap --clusterrole=system:node-bootstrapper --user=kubelet-bootstrap

3. 1.8版本之前.开启rbac后,apiserver默认绑定system:nodes组到system:node的clusterrole。v1.8之后,此绑定默认不存在,需要手工绑定,否则kubelet启动后会报认证错误，使用kubectl get nodes查看无法成为Ready状态

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1. kubectl create clusterrolebinding kubelet-node-clusterbinding --clusterrole=system:node --user=system:node:10.116.82.28

3.  kubectl describe clusterrolebindings kubelet-node-clusterbinding

多个node节点的话：
kubectl create clusterrolebinding kubelet-node-clusterbinding --clusterrole=system:node --group=system:nodes
二： 安装Kubelet

service文件：/usr/lib/systemd/system/kubelet.service. 负责master节点中的config文件到/etc/kubernetes/config

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1. [Unit]

2. Description=Kubernetes Kubelet Server

3. Documentation=http://kubernetes.io/docs/admin/kubelet/

4. After=docker.service

5. Requires=docker.service

7. [Service]

8. WorkingDirectory=/var/lib/kubelet

9. EnvironmentFile=-/etc/kubernetes/config

10. EnvironmentFile=-/etc/kubernetes/kubelet

11. ExecStart=/usr/bin/kubelet \

12.             $KUBE_LOGTOSTDERR \

13.             $KUBE_LOG_LEVEL \

14.             $KUBELET_API_SERVER \

15.             $KUBELET_ADDRESS \

16.             $KUBELET_PORT \

17.             $KUBELET_HOSTNAME \

18.             $KUBE_ALLOW_PRIV \

19.             $KUBELET_POD_INFRA_CONTAINER \

20.             $KUBELET_ARGS

21. Restart=on-failure

23. [Install]

24. WantedBy=multi-user.target

kubelet配置文件

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1. ## kubelet (minion) config

2. #

3. ## The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces)

4. KUBELET_ADDRESS="--address=10.116.82.28"

5. #

6. ## The port for the info server to serve on

7. #KUBELET_PORT="--port=10250"

8. #

9. ## You may leave this blank to use the actual hostname

10. KUBELET_HOSTNAME="--hostname-override=10.116.82.28"

11. #

12. ## location of the api-server

13. #KUBELET_API_SERVER="--api-servers=http://10.116.137.196:8080"

14. #

15. ## pod infrastructure container

16. #KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=sz-pg-oam-docker-hub-001.tendcloud.com/library/pod-infrastructure:rhel7"

17. KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure"

18. #

19. ## Add your own!

20. KUBELET_ARGS="--cgroup-driver=systemd --cluster-dns=10.254.0.2 --experimental-bootstrap-kubeconfig=/etc/kubernetes/bootstrap.kubeconfig --kubeconfig=/etc/kubernetes/kubelet.kubeconfig --require-kubeconfig --cert-dir=/etc/kubernetes/ssl --cluster-domain=cluster.local. --hairpin-mode promiscuous-bridge --serialize-image-pulls=false --runtime-cgroups=/systemd/system.slice --kubelet-cgroups=/systemd/system.slice"

启动kubelet
systemctl daemon-reload
systemctl enable kubelet
systemctl start kubelet
systemctl status kubelet

通过 kublet 的 TLS 证书请求
kubelet ?次启动时向 kube-apiserver 发送证书签名请求，必须通过后kubernetes 系统才会将该 Node 加?到集群。查看未授权的 CSR 请求.



通过 CSR 请求

kubectl certificate approve node-csr-nRoS_Xp89eNuqMmIQyE1SgllqjieGyYo5uMPtmhkfJ4



三： 安装Kube-proxy

1.yum install  conntrack-tools

2.service文件 vi /usr/lib/systemd/system/kube-proxy.service

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1. [Unit]

2. Description=Kubernetes Kube-Proxy Server

3. Documentation=http://kubernetes.io/docs/admin/kube-proxy/

4. After=network.target

6. [Service]

7. EnvironmentFile=-/etc/kubernetes/config

8. EnvironmentFile=-/etc/kubernetes/proxy

9. ExecStart=/usr/bin/kube-proxy \

10.             $KUBE_LOGTOSTDERR \

11.             $KUBE_LOG_LEVEL \

12.             $KUBE_MASTER \

13.             $KUBE_PROXY_ARGS

14. Restart=on-failure

15. LimitNOFILE=65536

17. [Install]

18. WantedBy=multi-user.target

3.配置文件  vi /etc/kubernetes/proxy

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1. KUBE_PROXY_ARGS="--bind-address=10.116.82.28  --hostname-override=10.116.82.28  --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig --cluster-cidr=10.254.0.0/16"

4.启动

systemctl daemon-reload
systemctl enable kube-proxy
systemctl start kube-proxy
systemctl status kube-proxy

看完上述内容，你们对kubernetes中怎么安装Node节点有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注创新互联-成都网站建设公司行业资讯频道，感谢大家的支持。