[kubernetes] Command to delete all pods in all kubernetes namespaces

Upon looking at the docs, there is an API call to delete 'a' pod, but is there a way to kill all pods in all namespaces?

Kubectl bulk (bulk-action on krew) plugin may be useful for you, it gives you bulk operations on selected resources. This is the command for deleting pods

 ' kubectl bulk pods -n namespace delete '

You could check details in this

I tried commands from listed answers here but pods were stuck in terminating state.
I found below command to delete all pods from particular namespace if stuck in terminating state or you are not able to delete it then you can delete pods forcefully.

kubectl delete pods --all --grace-period=0 --force --namespace namespace

Hope it might be useful to someone.

Here is a one-liner that can be extended with grep to filter by name.

kubectl get pods -o jsonpath="{.items[*].metadata.name}" | \
tr " " "\n" | \
xargs -i -P 0 kubectl delete pods {}

If you already have pods which are recreated, think to delete all deployments first

kubectl delete -n *NAMESPACE deployment *DEPLOYMENT

Just replace the NAMSPACE and the DEPLOYMENT to corresponding ones, you can get all deployments information by the following command

kubectl get deployments --all-namespaces

Delete all PODs in all Namespace only (restart deployment)

 kubectl get pod -A -o yaml | kubectl delete -f -

kubectl delete daemonsets,replicasets,services,deployments,pods,rc --all

to get rid of them pesky replication controllers too.

kubectl delete po,ing,svc,pv,pvc,sc,ep,rc,deploy,replicaset,daemonset --all -A

You can simply run

kubectl delete all --all --all-namespaces

• The first all means the common resource kinds (pods, replicasets, deployments, ...)

  • kubectl get all == kubectl get pods,rs,deployments, ...

• The second --all means to select all resources of the selected kinds

Note that all does not include:

• non namespaced resourced (e.g., clusterrolebindings, clusterroles, ...)
• configmaps
• rolebindings
• roles
• secrets
• ...

In order to clean up perfectly,

• you could use other tools (e.g., Helm, Kustomize, ...)
• you could use a namespace.
• you could use labels when you create resources.

K8s completely works on the fundamental of the namespace. if you like to release all the resource related to specified namespace.

you can use the below mentioned :

kubectl delete namespace k8sdemo-app

You just need sed to do this:

kubectl get pods --no-headers=true --all-namespaces |sed -r 's/(\S+)\s+(\S+).*/kubectl --namespace \1 delete pod \2/e'

Explains:

1. use command kubectl get pods --all-namespaces to get the list of all pods in all namespaces.
2. use --no-headers=true option to hide the headers.
3. use s command of sed to fetch the first two words, which represent namespace and pod's name respectively, then assemble the delete command using them.
4. the final delete command is just like: kubectl --namespace kube-system delete pod heapster-eq3yw.
5. use the e modifier of s command to execute the command assembled above, which will do the actual delete works.

To avoid delete pods in kube-system namespace, just need to add grep -v kube-system to exclude kube-system namespace before the sed command.

You can use kubectl delete pods -l dev-lead!=carisa or what label you have.

I create a python code to delete all in namespace

delall.py

import json,sys,os;

obj=json.load(sys.stdin);
for item in obj["items"]:
        os.system("kubectl delete " + item["kind"] + "/" +item["metadata"]["name"] + " -n yournamespace")

and then

kubectl get all -n kong -o json | python delall.py