force delete k8s namespace

force-delete-k8s-namespace.py

#!/usr/bin/env python3
import atexit
import json
import requests
import subprocess
import sys

namespace = sys.argv[1]
proxy_process = subprocess.Popen(['kubectl', 'proxy'])
atexit.register(proxy_process.kill)
p = subprocess.Popen(['kubectl', 'get', 'namespace', namespace, '-o', 'json'], stdout=subprocess.PIPE)
p.wait()
data = json.load(p.stdout)
data['spec']['finalizers'] = []
requests.put('http://127.0.0.1:8001/api/v1/namespaces/{}/finalize'.format(namespace), json=data).raise_for_status()

little sugar if you need to force delete all "Terminating" namespace at once

kubectl get ns | grep Terminating | awk '{print $1}' | xargs -I '{}' python3 force-delete-k8s-namespace.py {}

Thanks it worked!

wow! really works. Thanks.