重复安装时， 如果 ks 处于异常状态会导致这个问题，暂时可以这么解决。
查看日志
kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l 'app in (ks-install, ks-installer)' -o jsonpath='{.items[0].metadata.name}') -f
failed: [localhost] (item={'ns': 'kubesphere-system', 'kind': 'users.iam.kubesphere.io', 'resource': 'admin', 'release': 'ks-core'}) => {"ansible_loop_var": "item", "changed": true, "cmd": "/usr/local/bin/kubectl -n kubesphere-system annotate --overwrite users.iam.kubesphere.io admin meta.helm.sh/release-name=ks-core && /usr/local/bin/kubectl -n kubesphere-system annotate --overwrite users.iam.kubesphere.io admin meta.helm.sh/release-namespace=kubesphere-system && /usr/local/bin/kubectl -n kubesphere-system label --overwrite users.iam.kubesphere.io admin app.kubernetes.io/managed-by=Helm\n", "delta": "0:00:00.579129", "end": "2023-06-15 08:44:40.555266", "failed_when_result": true, "item": {"kind": "users.iam.kubesphere.io", "ns": "kubesphere-system", "release": "ks-core", "resource": "admin"}, "msg": "non-zero return code", "rc": 1, "start": "2023-06-15 08:44:39.976137", "stderr": "Error from server (InternalError): Internal error occurred: failed calling webhook \"users.iam.kubesphere.io\": failed to call webhook: Post \"https://ks-controller-manager.kubesphere-system.svc:443/validate-email-iam-kubesphere-io-v1alpha2?timeout=30s\": service \"ks-controller-manager\" not found", "stderr_lines": ["Error from server (InternalError): Internal error occurred: failed calling webhook \"users.iam.kubesphere.io\": failed to call webhook: Post \"https://ks-controller-manager.kubesphere-system.svc:443/validate-email-iam-kubesphere-io-v1alpha2?timeout=30s\": service \"ks-controller-manager\" not found"], "stdout": "", "stdout_lines": []}
PLAY RECAP *********************************************************************
localhost : ok=15 changed=9 unreachable=0 failed=1 skipped=6 rescued=0 ignored=0
暂时性解决
kubectl edit validatingwebhookconfigurations users.iam.kubesphere.io
查找 failurePolicy 将Fail 改为 Ignore 后重启 ks-installer ，待安装完成后再改回 Fail
重启 ks-installer
kubectl rollout restart -n kubesphere-system deployment ks-installer
问题已经解决成功开始安装
