Kubernetes

|NO.Z.00035|——————————|^^ 部署 ^^|——|KuberNetes&二进制部署.V13|5台Server|---------------------------------

本文主要是介绍|NO.Z.00035|——————————|^^ 部署 ^^|——|KuberNetes&二进制部署.V13|5台Server|---------------------------------,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!


[CloudNative:KuberNetes&二进制部署.V13]                                                            [Applications.KuberNetes][|DevOps|k8s|**5节点**|二进制1.20|kubernetes-node组件配置|——|kubelet|kube-proxy|]








一、kube-proxy配置
### --- kube-proxy注意事项

~~~     # 注意,如果不是高可用集群,192.168.1.20:8443改为master01的地址,
~~~     # 8443改为apiserver的端口,默认是6443

二、创建kube-proxy服务

### --- 创建kube-proxy服务
~~~     # 创建kube-proxy服务;以下操作在Master01执行

[root@k8s-master01 ~]# cd /root/k8s-ha-install

~~~     # 创建ServiceAccount

[root@k8s-master01 k8s-ha-install]# kubectl -n kube-system create serviceaccount kube-proxy
~~~     输出结果:
serviceaccount/kube-proxy created

~~~     # 创建ClusterRoleBinding

[root@k8s-master01 k8s-ha-install]# kubectl create clusterrolebinding system:kube-proxy         --clusterrole system:node-proxier         --serviceaccount kube-system:kube-proxy
~~~     输出结果:
clusterrolebinding.rbac.authorization.k8s.io/system:kube-proxy created

~~~     # 创建cluster

[root@k8s-master01 k8s-ha-install]# SECRET=$(kubectl -n kube-system get sa/kube-proxy \
     --output=jsonpath='{.secrets[0].name}')
[root@k8s-master01 k8s-ha-install]# JWT_TOKEN=$(kubectl -n kube-system get secret/$SECRET \
 --output=jsonpath='{.data.token}' | base64 -d)
[root@k8s-master01 k8s-ha-install]# PKI_DIR=/etc/kubernetes/pki
[root@k8s-master01 k8s-ha-install]# K8S_DIR=/etc/kubernetes
[root@k8s-master01 k8s-ha-install]# kubectl config set-cluster kubernetes     --certificate-authority=/etc/kubernetes/pki/ca.pem     --embed-certs=true     --server=https://192.168.1.20:8443     --kubeconfig=${K8S_DIR}/kube-proxy.kubeconfig
~~~     输出结果:
Cluster "kubernetes" set.

~~~     # 创建user

[root@k8s-master01 k8s-ha-install]# kubectl config set-credentials kubernetes     --token=${JWT_TOKEN}     --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig
~~~     输出结果:
User "kubernetes" set.

~~~     # 创建context

[root@k8s-master01 k8s-ha-install]# kubectl config set-context kubernetes     --cluster=kubernetes     --user=kubernetes     --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig
~~~     输出结果:
Context "kubernetes" created.

~~~     # 创建context

[root@k8s-master01 k8s-ha-install]# kubectl config use-context kubernetes     --kubeconfig=/etc/kubernetes/kube-proxy.kubeconfig
~~~     输出结果:
Switched to context "kubernetes". 

### --- 修改pod的网段
~~~     # 查看pod的网段
~~~     注:修改pod的网段
~~~     注:如果更改了集群Pod的网段,需要更改kube-proxy/kube-proxy.conf的clusterCIDR: 172.16.0.0/12参数为pod的网段。

[root@k8s-master01 ~]# vim kube-proxy/kube-proxy.conf
clusterCIDR: 172.16.0.0/12
### --- 在master01将kube-proxy的systemd Service文件发送到其他节点;将配置文件发送到其它节点
~~~     # 将kube-proxy配置文件发送到k8s-master节点

[root@k8s-master01 k8s-ha-install]# for NODE in k8s-master01 k8s-master02 k8s-master03; do
      scp ${K8S_DIR}/kube-proxy.kubeconfig $NODE:/etc/kubernetes/kube-proxy.kubeconfig
      scp kube-proxy/kube-proxy.conf $NODE:/etc/kubernetes/kube-proxy.conf
      scp kube-proxy/kube-proxy.service $NODE:/usr/lib/systemd/system/kube-proxy.service
  done
~~~     注:输出结果:
kube-proxy.kubeconfig                                                                                                                               100% 3120     1.6MB/s   00:00    
kube-proxy.conf                                                                                                                                     100%  813   143.0KB/s   00:00    
kube-proxy.service                                                                                                                                  100%  288    16.4KB/s   00:00    
kube-proxy.kubeconfig                                                                                                                               100% 3120   473.7KB/s   00:00    
kube-proxy.conf                                                                                                                                     100%  813   210.8KB/s   00:00    
kube-proxy.service                                                                                                                                  100%  288   106.8KB/s   00:00    
kube-proxy.kubeconfig                                                                                                                               100% 3120   506.0KB/s   00:00    
kube-proxy.conf                                                                                                                                     100%  813   185.6KB/s   00:00    
kube-proxy.service  
~~~     # 将kube-proxy配置文件发送到k8s-node节点

[root@k8s-master01 k8s-ha-install]# for NODE in k8s-node01 k8s-node02; do
      scp /etc/kubernetes/kube-proxy.kubeconfig $NODE:/etc/kubernetes/kube-proxy.kubeconfig
      scp kube-proxy/kube-proxy.conf $NODE:/etc/kubernetes/kube-proxy.conf
      scp kube-proxy/kube-proxy.service $NODE:/usr/lib/systemd/system/kube-proxy.service
  done
~~~     注:输出结果:
kube-proxy.kubeconfig                                                                                                                               100% 3120   322.1KB/s   00:00    
kube-proxy.conf                                                                                                                                     100%  813   118.2KB/s   00:00    
kube-proxy.service                                                                                                                                  100%  288    54.6KB/s   00:00    
kube-proxy.kubeconfig                                                                                                                               100% 3120   515.4KB/s   00:00    
kube-proxy.conf                                                                                                                                     100%  813   185.4KB/s   00:00    
kube-proxy.service
三、启动kube-proxy并设置开机自启动
### --- 所有节点启动kube-proxy并设置开机自启动
### --- 所有节点启动kube-proxy

[root@k8s-master01 k8s-ha-install]# systemctl daemon-reload
[root@k8s-master01 k8s-ha-install]# systemctl enable --now kube-proxy
Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service.
### --- 查看kube-proxy状态

[root@k8s-master01 k8s-ha-install]# systemctl status kube-proxy
  Active: active (running) since Wed 2021-05-12 21:10:55 CST; 14s ago








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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart                                                                                                                                                   ——W.S.Landor



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