Kubesphere uninstall script has to be improved- gets stuck in host cluster uninstallation

[KR411-prog]

Kubesphere uninstall script has to be improved. https://github.com/kubesphere/ks-installer/blob/master/scripts/kubesphere-delete.sh

when I tried to run uninstall on Kubesphere host cluster, it is stuck in Kube-federation-system with terminating status. And I have to manually clean up by removing finalizers.

kubectl get namespaces

NAME STATUS AGE

add-ons Active 17d

apicentral Active 17d

default Active 17d

kube-federation-system Terminating 101m

This does not seem to happen in member cluster

Ideally helm uninstall should be able to remove all the resources deployed in Kubesphere. But it only deletes crd clusterconfiguration. So we have to run this script manually for uninstall.

[KR411-prog]

After running the uninstall script in Kubesphere host cluster, I find the below resources not deleted.

kubectl api-resources --verbs=list --namespaced -o name | grep -v event | xargs -n 1 kubectl get --show-kind --ignore-not-found -n "kube-federation-system"
NAME AGE
federatedtypeconfig.core.kubefed.io/applications.app.k8s.io 17d
federatedtypeconfig.core.kubefed.io/clusterrolebindings.rbac.authorization.k8s.io 17d
federatedtypeconfig.core.kubefed.io/clusterroles.rbac.authorization.k8s.io 17d
federatedtypeconfig.core.kubefed.io/configmaps 17d
federatedtypeconfig.core.kubefed.io/configs.notification.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/deployments.apps 17d
federatedtypeconfig.core.kubefed.io/globalrolebindings.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/globalroles.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/groupbindings.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/groups.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/ingresses.networking.k8s.io 17d
federatedtypeconfig.core.kubefed.io/jobs.batch 17d
federatedtypeconfig.core.kubefed.io/limitranges 17d
federatedtypeconfig.core.kubefed.io/namespaces 17d
federatedtypeconfig.core.kubefed.io/persistentvolumeclaims 17d
federatedtypeconfig.core.kubefed.io/receivers.notification.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/replicasets.apps 17d
federatedtypeconfig.core.kubefed.io/secrets 17d
federatedtypeconfig.core.kubefed.io/serviceaccounts 17d
federatedtypeconfig.core.kubefed.io/services 17d
federatedtypeconfig.core.kubefed.io/statefulsets.apps 17d
federatedtypeconfig.core.kubefed.io/users.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/workspacerolebindings.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/workspaceroles.iam.kubesphere.io 17d
federatedtypeconfig.core.kubefed.io/workspaces.tenant.kubesphere.io 17d
Warning: extensions/v1beta1 Ingress is deprecated in v1.14+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress

I tried to delete them one after the other but its getting stuck in deletion.
kubectl delete federatedtypeconfig.core.kubefed.io/applications.app.k8s.io -n kube-federation-system - is stuck in deletion

kubectl describe federatedtypeconfig.core.kubefed.io/applications.app.k8s.io -n kube-federation-system
Name: applications.app.k8s.io
Namespace: kube-federation-system
Labels:
Annotations:
API Version: core.kubefed.io/v1beta1
Kind: FederatedTypeConfig
Metadata:
Creation Timestamp: 2022-04-29T21:07:52Z
Deletion Grace Period Seconds: 0
Deletion Timestamp: 2022-05-15T17:57:06Z
Finalizers:
core.kubefed.io/federated-type-config
Generation: 2
Managed Fields:
API Version: core.kubefed.io/v1beta1
Fields Type: FieldsV1
fieldsV1:
f:metadata:
f:annotations:
.:
f:kubectl.kubernetes.io/last-applied-configuration:
f:spec:
.:
f:federatedType:
.:
f:group:
f:kind:
f:pluralName:
f:scope:
f:version:
f:propagation:
f:targetType:
.:
f:group:
f:kind:
f:pluralName:
f:scope:
f:version:
Manager: kubectl
Operation: Update
Time: 2022-04-29T21:07:52Z
API Version: core.kubefed.io/v1beta1
Fields Type: FieldsV1
fieldsV1:
f:metadata:
f:finalizers:
.:
v:"core.kubefed.io/federated-type-config":
f:status:
.:
f:observedGeneration:
f:propagationController:
f:statusController:
Manager: controller-manager
Operation: Update
Time: 2022-04-29T21:08:06Z
Resource Version: 10862468
UID: 3674d821-12e1-454a-a35d-4945f5c436ac
Spec:
Federated Type:
Group: types.kubefed.io
Kind: FederatedApplication
Plural Name: federatedapplications
Scope: Namespaced
Version: v1beta1
Propagation: Enabled
Target Type:
Group: app.k8s.io
Kind: Application
Plural Name: applications
Scope: Namespaced
Version: v1beta1
Status:
Observed Generation: 1
Propagation Controller: Running
Status Controller: NotRunning
Events: