通过Docker部署rancher

先创建k8s集群

https://blog.csdn.net/weixin_44371237/article/details/123974335

环境准备

一台linux主机，4G内存

通过Docker部署rancher

启动rancher

docker run --privileged -d --restart=unless-stopped -p 80:80 -p 443:443 rancher/rancher

查看本地镜像 docker images

查看运行容器 docker ps

登录页面 https://服务器IP/ （证书问题，清除浏览器重试）

查看密码

docker logs container-id 2>&1 | grep "Bootstrap Password:"

登录后提示先修改密码

导入K8S集群

查找kubelet配置文件

ps -ef | grep kubelet

查看kubelet配置中的USER_ACCOUNT

cat /etc/kubernetes/kubelet.conf | grep user

执行

kubectl create clusterrolebinding cluster-admin-binding --clusterrole cluster-admin --user system:node:k8s-1

结果

访问截图以上yaml，查出来image镜像

提前在所有的node节点节点上下载这个rancher/rancher-agent:v2.6.3镜像

docker pull rancher/rancher-agent:v2.6.3

在master执行上面截图中的

curl --insecure -sfL https://192.168.56.201/v3/import/vg984cdxh9h4zspkctddhlzbjkwk84zfknx9d8x8pprhrkql8pf79c_c-m-4ffpn2qv.yaml | kubectl apply -f -

检查

检查会发现k8s中多了一个cattle-system的命名空间
[root@k8s-master01 work]# kubectl get ns
NAME              STATUS   AGE
cattle-system     Active   18m
default           Active   3d19h
kube-node-lease   Active   3d19h
kube-public       Active   3d19h
kube-system       Active   3d19hcattle-system的命名空间下创建了cattle-cluster-agent和cattle-node-agent的pod
[root@k8s-master01 work]# kubectl get pods -n cattle-system
NAME                                   READY   STATUS    RESTARTS   AGE
cattle-cluster-agent-87944bb89-9l8vn   1/1     Running   0          18m
cattle-node-agent-24vnp                1/1     Running   0          18m
cattle-node-agent-86hdx                1/1     Running   0          18m
cattle-node-agent-qz59v                1/1     Running   0          18m[root@k8s-master01 work]# kubectl get deployment -n cattle-system
NAME                   READY   UP-TO-DATE   AVAILABLE   AGE
cattle-cluster-agent   1/1     1            1           19m[root@k8s-master01 work]# kubectl get daemonset -n cattle-system
NAME                DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR   AGE
cattle-node-agent   3         3         3       3            3           <none>          19m

相关文章 https://cloud.tencent.com/developer/article/1811199