KUBERNETES (K8S): ETCDCTL Command To Delete Pod Registry Entry From ETCD Database

NOTE: Deleting the Pod registry entry from etcd database will delete the pod from Kubernetes cluster. This action should never be performed and may cause issues with Kubernetes cluster. This action needs to be taken with lot of precaution, thorough analysis and guidance.

Below is the command.

sudo ETCDCTL_API=3 etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key del <pod registry entry>

For e.g. command can look as follows:

sudo ETCDCTL_API=3 etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key del /registry/pods/default/nginx-static-pod-control1

To List the Pod registry entries in etcd you can run below command.

sudo ETCDCTL_API=3 etcdctl --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key get /registry/pods --prefix --keys-only