In kubernetes, you can deploy resources with kubectl create -f (-k) or kubectl apply -f (-k) by specifying manifest files, and similarly, you can use manifest files to delete resources by kubectl delete -f (-k) command.
For example, some resources deployed with the following command;
$ kubectl apply -k base
namespace/awx created
secret/awx-admin-password created
secret/awx-postgres-configuration created
secret/awx-secret-tls created
persistentvolume/awx-postgres-volume created
persistentvolume/awx-projects-volume created
persistentvolumeclaim/awx-projects-claim created
awx.awx.ansible.com/awx createdcan be deleted with the following command with same manifest files.
$ kubectl delete -k base
namespace "awx" deleted
secret "awx-admin-password" deleted
secret "awx-postgres-configuration" deleted
secret "awx-secret-tls" deleted
persistentvolume "awx-postgres-volume" deleted
persistentvolume "awx-projects-volume" deleted
persistentvolumeclaim "awx-projects-claim" deleted
awx.awx.ansible.com "awx" deletedOr, you can delete all resources in specific namespace by deleting that namespace. PVs cannot be deleted in this way since the PVs are namespace-independent resources, so they need to be deleted manually.
$ kubectl delete ns awx
namespace "awx" deleted
$ kubectl delete pv <volume name>
persistentvolume "<volume name>" deletedAll manifest files in this repository, the PVs were persisted under /data/<volume name> on the K3s host using hostPath.
If you want to initialize the data and start all over again, for example, you can delete the data manually.
sudo rm -rf /data/<volume name>K3s comes with a handy uninstall script. Once executed, it will perform an uninstall that includes removing all resources deployed on Kubernetes.
/usr/local/bin/k3s-uninstall.sh