kubernetes部署-kubelet kubernetes部署-kubelet

## 部署-kubelet

node1:10.167.130.206
node2:10.167.130.210
两个节点都要做,kubelet是node的组件.

创建配置文件

vim /opt/kubernetes/cfg/kubelet  
  
KUBELET_OPTS="--logtostderr=true \\  
--v=4 \\  
--hostname-override=10.167.130.206 \\  
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \\  
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \\  
--config=/opt/kubernetes/cfg/kubelet.config \\  
--cert-dir=/opt/kubernetes/ssl \\  
--pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google-containers/pause-amd64:3.0"  
  
* --hostname-override 在集群中显示的主机名  
* --kubeconfig 指定kubeconfig文件位置，会自动生成  
* --bootstrap-kubeconfig 指定刚才生成的bootstrap.kubeconfig文件  
* --cert-dir 颁发证书存放位置  
* --pod-infra-container-image 管理Pod网络的镜像  
  
  
vim /opt/kubernetes/cfg/kubelet.config  
  
kind: KubeletConfiguration  
apiVersion: kubelet.config.k8s.io/v1beta1  
address: 10.167.130.206 #写本机IP服务启动后会启动本机IP的10250 10255端口来侦听api server的指令  
port: 10250  
readOnlyPort: 10255  
cgroupDriver: cgroupfs  
clusterDNS: ["10.0.0.2"]  
clusterDomain: cluster.local.  
failSwapOn: false  
authentication:  
anonymous:  
enabled: true  
  
  
vim /usr/lib/systemd/system/kubelet.service  
  
[Unit]  
Description=Kubernetes Kubelet  
After=docker.service  
Requires=docker.service  
  
[Service]  
EnvironmentFile=/opt/kubernetes/cfg/kubelet  
ExecStart=/opt/kubernetes/bin/kubelet $KUBELET_OPTS  
Restart=on-failure  
KillMode=process  
  
[Install]  
WantedBy=multi-user.target  
  
systemctl daemon-reload  
systemctl enable kubelet  
systemctl restart kubelet  

查看客户端连接api的证书申请

    $ kubectl get csr 
    NAME     AGE    REQUESTOR          CONDITION 
    csr-2b308 4m    kubelet-bootstrap   Pending

批准并生成证书给客户端

kubectl certificate approve  csr-2b308

批准后会显示Approved(批准)和Issued(颁发)

此处我遇到一个问题只有批准状态没有颁发状态
这里做一点说明,批准是由api server来做的,至于证书的生成和颁发是由kube-controller-manager来做
所以针对这个错误情况应该查看kube-controller-manager的日志来排除错误 journalctl -u kube-controller-manager

kubectl get node  
  
NAME STATUS ROLES AGE VERSION  
10.167.130.206 Ready  3d3h v1.13.1  

安装参考文档
基础部署参考
解释较为详细的安装文档