**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
GroupCommand(name="config", help='View configuration', subcommands=CONFIG_COMMANDS),
    ActionCommand(
        name='info',
        help='Show information about current Airflow and environment',
        func=lazy_load_command('airflow.cli.commands.info_command.show_info'),
        args=(
            ARG_ANONYMIZE,
            ARG_FILE_IO,
            ARG_VERBOSE,
            ARG_OUTPUT,
        ),
    ),
    ActionCommand(
        name='plugins',
        help='Dump information about loaded plugins',
        func=lazy_load_command('airflow.cli.commands.plugins_command.dump_plugins'),
        args=(ARG_OUTPUT, ARG_VERBOSE),
    ),
    GroupCommand(
        name="celery",
        help='Celery components',
        description=(
            'Start celery components. Works only when using CeleryExecutor. For more information, see '
            'https://airflow.apache.org/docs/apache-airflow/stable/executor/celery.html'
        ),
        subcommands=CELERY_COMMANDS,
    ),
]
ALL_COMMANDS_DICT: Dict[str, CLICommand] = {sp.name: sp for sp in airflow_commands}
def _remove_dag_id_opt(command: ActionCommand):