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简介

模拟客户环境，测试 kubernetes v1.18.x 是否可以被 rancher v2.9.1 纳管。

安装工具

• docker 安装
• Install and Set Up kubectl on Linux
• • 安装 minikube

配置代理

• docker proxy
• linux proxy

运行集群

$ minikube start  --driver=none --container-runtime=docker  --kubernetes-version=v1.18.1

输出：

😄  minikube v1.18.1 on Rocky 8.10
🆕  Kubernetes 1.20.2 is now available. If you would like to upgrade, specify: --kubernetes-version=v1.20.2
✨  Using the none driver based on existing profile
👍  Starting control plane node minikube in cluster minikube
🔄  Restarting existing none bare metal machine for "minikube" ...
ℹ️  OS release is Rocky Linux 8.10 (Green Obsidian)
🌐  Found network options:▪ HTTP_PROXY=http://192.168.21.101:7890▪ HTTPS_PROXY=http://192.168.21.101:7890▪ NO_PROXY=proxyhost,localhost,*.vsphere.local,*.vm.demo,*.tanzu.demo,192.168.21.101,127.0.0.1/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16▪ http_proxy=http://192.168.21.101:7890▪ https_proxy=http://192.168.21.101:7890▪ no_proxy=proxyhost,localhost,*.vsphere.local,*.vm.demo,*.tanzu.demo,192.168.21.101,127.0.0.1/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
🐳  Preparing Kubernetes v1.18.1 on Docker 19.03.15 ...▪ env HTTP_PROXY=http://192.168.21.101:7890▪ env HTTPS_PROXY=http://192.168.21.101:7890▪ env NO_PROXY=proxyhost,localhost,*.vsphere.local,*.vm.demo,*.tanzu.demo,192.168.21.101,127.0.0.1/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16🤹  Configuring local host environment ...❗  The 'none' driver is designed for experts who need to integrate with an existing VM
💡  Most users should use the newer 'docker' driver instead, which does not require root!
📘  For more information, see: https://minikube.sigs.k8s.io/docs/reference/drivers/none/❗  kubectl and minikube configuration will be stored in /root
❗  To use kubectl or minikube commands as your own user, you may need to relocate them. For example, to overwrite your own settings, run:▪ sudo mv /root/.kube /root/.minikube $HOME▪ sudo chown -R $USER $HOME/.kube $HOME/.minikube💡  This can also be done automatically by setting the env var CHANGE_MINIKUBE_NONE_USER=true
🔎  Verifying Kubernetes components...▪ Using image gcr.io/k8s-minikube/storage-provisioner:v4
🌟  Enabled addons: storage-provisioner, default-storageclass
❗  The cluster minikube already exists which means the --nodes parameter will be ignored. Use "minikube node add" to add nodes to an existing cluster.
🏄  Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

检查集群

$ kubectl get node
NAME         STATUS   ROLES    AGE    VERSION
minikube01   Ready    <none>   178m   v1.18.1
$ kubectl get pod -A
NAMESPACE     NAME                                 READY   STATUS    RESTARTS   AGE
kube-system   coredns-66bff467f8-rszjx             1/1     Running   0          176m
kube-system   etcd-minikube01                      1/1     Running   1          177m
kube-system   kube-apiserver-minikube01            1/1     Running   0          177m
kube-system   kube-controller-manager-minikube01   1/1     Running   0          177m
kube-system   kube-proxy-nthcz                     1/1     Running   0          176m
kube-system   kube-scheduler-minikube01            1/1     Running   0          177m
kube-system   storage-provisioner                  1/1     Running   1          176m

加入rancher

curl --insecure -sfL https://rancheruat.demo.com.cn/v3/import/gnplffg5965h27mjv4dwbgpvk8qhhpssj896t8vrdnblljhfpx6dhc_c-m-9gpswkpp.yaml | kubectl apply -f -

$ kubectl edit deploy cattle-cluster-agent -n cattle-system
…..dnsPolicy: ClusterFirsthostAliases:- hostnames:- rancheruat.demo.com.cnip: 192.168.23.79restartPolicy: AlwaysschedulerName: default-scheduler
…..$ kubectl edit  sts  fleet-agent  -n cattle-fleet-system
…..dnsPolicy: ClusterFirsthostAliases:- hostnames:- rancheruat.demo.com.cnip: 192.168.23.79restartPolicy: AlwaysschedulerName: default-scheduler