**Update**

We discussed and decide this CLI should always only clean up pods created by Airflow.

<hr>

### Description

Currently command `kubernetes cleanup-pods` cleans up Pods that meet specific conditions in a given namespace.

Underlying code: https://github.com/apache/airflow/blob/2.0.1/airflow/cli/commands/kubernetes_command.py#L70

### Use case / motivation

The problem to me is: users may have other non-Airflow stuff running in this specific namespace, and they may want to have different strategy/logic for Pod cleaning-up for these non-Airflow pods.

We may want to have an additional boolean flag for this command, like `--only-airflow-pods`, so that users can decide if they only want to clean up Airflow-created Pods.

It should not be hard to identify Airflow-created pods, given the specific labels Airflow adds to the Pods it creates (https://github.com/apache/airflow/blob/2.0.1/airflow/kubernetes/pod_generator.py#L385)




airflow/cli/commands/kubernetes_command.py
#
#
"""Kubernetes sub-commands"""
import os
import sys
from kubernetes import client
from kubernetes.client.api_client import ApiClient
from kubernetes.client.rest import ApiException
import airflow.utils.yaml as yaml
from airflow.executors.kubernetes_executor import KubeConfig, create_pod_id
from airflow.kubernetes import pod_generator
from airflow.kubernetes.kube_client import get_kube_client
from airflow.kubernetes.pod_generator import PodGenerator
from airflow.models import TaskInstance
from airflow.settings import pod_mutation_hook
from airflow.utils import cli as cli_utils
from airflow.utils.cli import get_dag
@cli_utils.action_logging
def generate_pod_yaml(args):