kubernetes(k8s) kubesphere 安装 -凯发k8天生赢家一触即发

安装kubesphere最好的方法就是参考官方文档，而且官方文档是中文的。

凯发k8天生赢家一触即发官网地址：https://kubesphere.com.cn/

https://github.com/kubesphere/kubesphere/blob/master/readme_zh.md

() kubesphere 介绍

安装提前条件：

使用 kubeadm 部署 kubernetes(k8s) 安装--附k8s架构图

使用 kubeadm 部署 kubernetes(k8s) 安装 -- 持久化存储(nfs网络存储)

kubernetes(k8s) 安装 metrics-server

# 检查 k8s 版本，低版本需要升级

[root@k8smaster kubesphere]# kubectl version

安装

[root@k8smaster ~]# cd /opt/k8s/kubesphere

# 创建文件storageclass.yaml

[root@k8smaster kubesphere]# vi storageclass.yaml

kind: storageclass

apiversion: storage.k8s.io/v1

metadata:

  name: local-storage

provisioner: kubernetes.io/no-provisioner

volumebindingmode: waitforfirstconsumer 
# persistentvolumeclaim.yaml

[root@k8smaster kubesphere]# vi persistentvolumeclaim.yaml

apiversion: v1

kind: persistentvolumeclaim

metadata:

  name: local-pve

spec:

  accessmodes:

     - readwriteonce

  resources:

    requests:

      storage: 20gi

  storageclassname: local-storage
# 下载核心文件（可以讯雷下载好传到 服务器）

[root@k8smaster kubesphere]# wget https://github.com/kubesphere/ks-installer/releases/download/v3.1.1/kubesphere-installer.yaml

[root@k8smaster kubesphere]# wget https://github.com/kubesphere/ks-installer/releases/download/v3.1.1/cluster-configuration.yaml

[root@k8smaster kubesphere]# ll

总用量 12

-rwxrwxrwx 1 root root 7663 4月  23 09:41 cluster-configuration.yaml

-rwxrwxrwx 1 root root 4064 4月  23 09:41 kubesphere-installer.yaml
# 安装

[root@k8smaster kubesphere]# kubectl apply -f storageclass.yaml

storageclass.storage.k8s.io/local-storage created

[root@k8smaster kubesphere]# kubectl apply -f persistentvolumeclaim.yaml

persistentvolumeclaim/local-pve created
[root@k8smaster kubesphere]# kubectl apply -f kubesphere-installer.yaml

customresourcedefinition.apiextensions.k8s.io/clusterconfigurations.installer.kubesphere.io created

namespace/kubesphere-system created

serviceaccount/ks-installer created

clusterrole.rbac.authorization.k8s.io/ks-installer created

clusterrolebinding.rbac.authorization.k8s.io/ks-installer created

deployment.apps/ks-installer created
[root@k8smaster kubesphere]# kubectl apply -f cluster-configuration.yaml

clusterconfiguration.installer.kubesphere.io/ks-installer created
#解决找不到证书的问题

[root@k8smaster kubesphere]# kubectl -n kubesphere-system create secret generic kube-etcd-client-certs  --from-file=etcd-client-ca.crt=/etc/kubernetes/pki/etcd/ca.crt  --from-file=etcd-client.crt=/etc/kubernetes/pki/apiserver-etcd-client.crt  --from-file=etcd-client.key=/etc/kubernetes/pki/apiserver-etcd-client.key

secret/kube-etcd-client-certs created
# 查看 pod 详情

[root@k8smaster kubesphere]# kubectl describe pod -n kubesphere-system

events:

  type    reason     age   from               message

  ----    ------     ----  ----               -------

  normal  scheduled  12m   default-scheduler  successfully assigned kubesphere-system/ks-installer-7bd6b699df-9lnlc to k8snode1

  normal  pulling    12m   kubelet            pulling image "kubesphere/ks-installer:v3.1.1"

  normal  pulled     11m   kubelet            successfully pulled image "kubesphere/ks-installer:v3.1.1"

  normal  created    11m   kubelet            created container installer

  normal  started    11m   kubelet            started container installer

[root@k8smaster kubesphere]#
# 使用命令查看进度

[root@k8smaster kubesphere]# kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f

如果出现下面错误，需要安装 storageclass、persistentvolumeclaim

task [preinstall : kubesphere | stopping if default storageclass was not found] ***

fatal: [localhost]: failed! => {

    "assertion": "\"(default)\" in default_storage_class_check.stdout",

    "changed": false,

    "evaluated_to": false,

    "msg": "default storageclass was not found !"

}

# 删除

[root@k8smaster kubesphere]# kubectl delete -f kubesphere-installer.yaml

[root@k8smaster kubesphere]# kubectl delete -f cluster-configuration.yaml

# 安装完 storageclass  后，重新安装

[root@k8smaster kubesphere]# kubectl apply -f storageclass.yaml

[root@k8smaster kubesphere]# kubectl apply -f persistentvolumeclaim.yaml

[root@k8smaster kubesphere]# kubectl apply -f kubesphere-installer.yaml

[root@k8smaster kubesphere]# kubectl apply -f cluster-configuration.yaml

kubernetes(k8s) kubesphere 安装的相关教程结束。