从 k8s 上卸载 KubeSphere

╰+哭是因爲堅強的太久メ 2023-10-05 18:29 39阅读 0赞

您可以使用 kubesphere-delete.sh 将 KubeSphere 从您现有的 Kubernetes 集群中卸载。复制 GitHub 源文件并在本地机器上执行此脚本。

> 警告：  
> 卸载意味着 KubeSphere 会从您的 Kubernetes 集群中移除。此操作不可逆并且没有任何备份，请谨慎操作。

参考链接：  
[https://kubesphere.com.cn/docs/installing-on-kubernetes/uninstall-kubesphere-from-k8s/][https_kubesphere.com.cn_docs_installing-on-kubernetes_uninstall-kubesphere-from-k8s]

#!/usr/bin/env bash
    
    function delete_sure(){
        
      cat << eof
    $(echo -e "\033[1;36mNote:\033[0m")
    
    Delete the KubeSphere cluster, including the module kubesphere-system kubesphere-devops-system kubesphere-monitoring-system kubesphere-logging-system openpitrix-system.
    eof
    
    read -p "Please reconfirm that you want to delete the KubeSphere cluster.  (yes/no) " ans
    while [[ "x"$ans != "xyes" && "x"$ans != "xno" ]]; do
        read -p "Please reconfirm that you want to delete the KubeSphere cluster.  (yes/no) " ans
    done
    
    if [[ "x"$ans == "xno" ]]; then
        exit
    fi
    }
    
    
    delete_sure
    
    # delete ks-install
    kubectl delete deploy ks-installer -n kubesphere-system 2>/dev/null
    
    # delete helm
    for namespaces in kubesphere-system kubesphere-devops-system kubesphere-monitoring-system kubesphere-logging-system openpitrix-system
    do
      helm list -n $namespaces | grep -v NAME | awk '{print $1}' | sort -u | xargs -r -L1 helm uninstall -n $namespaces 2>/dev/null
    done
    
    # delete kubefed
    kubectl get cc -n kubesphere-system ks-installer -o jsonpath="{.status.multicluster}" | grep enable
    if [[ $? -eq 0 ]]; then
      helm uninstall -n kube-federation-system kubefed 2>/dev/null
      #kubectl delete ns kube-federation-system 2>/dev/null
    fi
    
    
    helm uninstall -n kube-system snapshot-controller 2>/dev/null
    
    # delete kubesphere deployment
    kubectl delete deployment -n kubesphere-system `kubectl get deployment -n kubesphere-system -o jsonpath="{.items[*].metadata.name}"` 2>/dev/null
    
    # delete monitor statefulset
    kubectl delete prometheus -n kubesphere-monitoring-system k8s 2>/dev/null
    kubectl delete statefulset -n kubesphere-monitoring-system `kubectl get statefulset -n kubesphere-monitoring-system -o jsonpath="{.items[*].metadata.name}"` 2>/dev/null
    kubectl --no-headers=true get pvc -n kubesphere-monitoring-system -o custom-columns=:metadata.namespace,:metadata.name | grep -E kubesphere-monitoring-system | xargs -n2 kubectl delete pvc -n 2>/dev/null
    
    # delete pvc
    pvcs="kubesphere-system|openpitrix-system|kubesphere-devops-system|kubesphere-logging-system"
    kubectl --no-headers=true get pvc --all-namespaces -o custom-columns=:metadata.namespace,:metadata.name | grep -E $pvcs | xargs -n2 kubectl delete pvc -n 2>/dev/null
    
    
    # delete rolebindings
    delete_role_bindings() {
        
      for rolebinding in `kubectl -n $1 get rolebindings -l iam.kubesphere.io/user-ref -o jsonpath="{.items[*].metadata.name}"`
      do
        kubectl -n $1 delete rolebinding $rolebinding 2>/dev/null
      done
    }
    
    # delete roles
    delete_roles() {
        
      kubectl -n $1 delete role admin 2>/dev/null
      kubectl -n $1 delete role operator 2>/dev/null
      kubectl -n $1 delete role viewer 2>/dev/null
      for role in `kubectl -n $1 get roles -l iam.kubesphere.io/role-template -o jsonpath="{.items[*].metadata.name}"`
      do
        kubectl -n $1 delete role $role 2>/dev/null
      done
    }
    
    # remove useless labels and finalizers
    for ns in `kubectl get ns -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl label ns $ns kubesphere.io/workspace-
      kubectl label ns $ns kubesphere.io/namespace-
      kubectl patch ns $ns -p '{"metadata":{"finalizers":null,"ownerReferences":null}}'
      delete_role_bindings $ns
      delete_roles $ns
    done
    
    # delete clusters
    for cluster in `kubectl get clusters -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch cluster $cluster -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    kubectl delete clusters --all 2>/dev/null
    
    # delete workspaces
    for ws in `kubectl get workspaces -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch workspace $ws -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    kubectl delete workspaces --all 2>/dev/null
    
    # delete devopsprojects
    for devopsproject in `kubectl get devopsprojects -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch devopsprojects $devopsproject -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    
    for pip in `kubectl get pipeline -A -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch pipeline $pip -n `kubectl get pipeline -A | grep $pip | awk '{print $1}'` -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    
    for s2ibinaries in `kubectl get s2ibinaries -A -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch s2ibinaries $s2ibinaries -n `kubectl get s2ibinaries -A | grep $s2ibinaries | awk '{print $1}'` -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    
    for s2ibuilders in `kubectl get s2ibuilders -A -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch s2ibuilders $s2ibuilders -n `kubectl get s2ibuilders -A | grep $s2ibuilders | awk '{print $1}'` -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    
    for s2ibuildertemplates in `kubectl get s2ibuildertemplates -A -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch s2ibuildertemplates $s2ibuildertemplates -n `kubectl get s2ibuildertemplates -A | grep $s2ibuildertemplates | awk '{print $1}'` -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    
    for s2iruns in `kubectl get s2iruns -A -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch s2iruns $s2iruns -n `kubectl get s2iruns -A | grep $s2iruns | awk '{print $1}'` -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    
    kubectl delete devopsprojects --all 2>/dev/null
    
    
    # delete validatingwebhookconfigurations
    for webhook in ks-events-admission-validate users.iam.kubesphere.io network.kubesphere.io validating-webhook-configuration
    do
      kubectl delete validatingwebhookconfigurations.admissionregistration.k8s.io $webhook 2>/dev/null
    done
    
    # delete mutatingwebhookconfigurations
    for webhook in ks-events-admission-mutate logsidecar-injector-admission-mutate mutating-webhook-configuration
    do
      kubectl delete mutatingwebhookconfigurations.admissionregistration.k8s.io $webhook 2>/dev/null
    done
    
    # delete users
    for user in `kubectl get users -o jsonpath="{.items[*].metadata.name}"`
    do
      kubectl patch user $user -p '{"metadata":{"finalizers":null}}' --type=merge
    done
    kubectl delete users --all 2>/dev/null
    
    # delete crds
    for crd in `kubectl get crds -o jsonpath="{.items[*].metadata.name}"`
    do
      if [[ $crd == *kubesphere.io ]]; then kubectl delete crd $crd 2>/dev/null; fi
    done
    
    # delete relevance ns
    for ns in kubesphere-alerting-system kubesphere-controls-system kubesphere-devops-system kubesphere-logging-system kubesphere-monitoring-system openpitrix-system kubesphere-system
    do
      kubectl delete ns $ns 2>/dev/null
    done

[https_kubesphere.com.cn_docs_installing-on-kubernetes_uninstall-kubesphere-from-k8s]: https://kubesphere.com.cn/docs/installing-on-kubernetes/uninstall-kubesphere-from-k8s/