How to delete all pods from a specific namespace with kubectl?

Run the following to get all namespaces exactly:

kubectl get pods --all-namespaces

The first column shows the namespaces and the second column shows pods as follows:

NAMESPACE      NAME                                       READY   STATUS             RESTARTS        AGE
kube-flannel   kube-flannel-ds-skdpx                      0/1     CrashLoopBackOff   20 (3m6s ago)   27m
kube-system    coredns-64897985d-kfssj                    0/1     Pending            0               10m
kube-system    coredns-64897985d-p96wd                    0/1     Pending            0               10m
kube-system    etcd-ip-172-31-45-235                      1/1     Running            0               34m
kube-system    kube-apiserver-ip-172-31-45-235            1/1     Running            0               34m
kube-system    kube-controller-manager-ip-172-31-45-235   1/1     Running            0               34m
kube-system    kube-proxy-vttwh                           1/1     Running            0               34m
kube-system    kube-scheduler-ip-172-31-45-235            1/1     Running            0               34m

You can also run the following command to get all pods from the namespace if there are too many, for example from kube-flannel:

kubectl get pods --namespace=kube-flannel

Replace kube-flannel with any other namespace you want.

Next to delete pods from kube-flannel or any namespace run the following

kubectl delete pods kube-flannel-ds-skdpx --namespace=kube-flannel

Replace kube-flannel-ds-skdpx with the name of your pod.

Finally if you want to delete the namespace with kubectl:

kubectl delete namespace kube-flannel

This is really annoying from kubectl I really wish there was easier way so let me know if you have one in the comments!

By Lougarou