**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/cli_parser.py
ActionCommand(
        name='flower',
        help="Start a Celery Flower",
        func=lazy_load_command('airflow.cli.commands.celery_command.flower'),
        args=(
            ARG_FLOWER_HOSTNAME,
            ARG_FLOWER_PORT,
            ARG_FLOWER_CONF,
            ARG_FLOWER_URL_PREFIX,
            ARG_FLOWER_BASIC_AUTH,
            ARG_BROKER_API,
            ARG_PID,
            ARG_DAEMON,
            ARG_STDOUT,
            ARG_STDERR,
            ARG_LOG_FILE,
        ),
    ),
    ActionCommand(
        name='stop',
        help="Stop the Celery worker gracefully",
        func=lazy_load_command('airflow.cli.commands.celery_command.stop_worker'),
        args=(),
    ),
)
CONFIG_COMMANDS = (
    ActionCommand(
        name='get-value',
        help='Print the value of the configuration',
        func=lazy_load_command('airflow.cli.commands.config_command.get_value'),