Function salt_minion

salt/scripts.py:205–314

Start the salt minion in a subprocess. Auto restart minion on error.

()

def salt_minion():
    """
    Start the salt minion in a subprocess.
    Auto restart minion on error.
    """
    _pin_multiprocessing_fork()

    import signal

    import salt.utils.debug
    import salt.utils.platform
    import salt.utils.process

    salt.utils.debug.enable_sigusr1_handler()

    salt.utils.process.notify_systemd()

    import multiprocessing

    import salt.cli.daemons

    # Fix for setuptools generated scripts, so that it will
    # work with multiprocessing fork emulation.
    # (see multiprocessing.forking.get_preparation_data())
    if __name__ != "__main__":
        sys.modules["__main__"] = sys.modules[__name__]

    if "" in sys.path:
        sys.path.remove("")

    if salt.utils.platform.is_windows():
        minion = salt.cli.daemons.Minion()
        minion.start()
        return

    if "--disable-keepalive" in sys.argv:
        minion = salt.cli.daemons.Minion()
        minion.start()
        return

    def escalate_signal_to_process(
        pid, signum, sigframe
    ):  # pylint: disable=unused-argument
        """
        Escalate the signal received to the multiprocessing process that
        is actually running the minion
        """
        # escalate signal
        os.kill(pid, signum)

    # keep one minion subprocess running
    prev_sigint_handler = signal.getsignal(signal.SIGINT)
    prev_sigterm_handler = signal.getsignal(signal.SIGTERM)
    supervisor_privileges_dropped = False
    while True:
        try:
            process = multiprocessing.Process(
                target=minion_process, name="MinionKeepAlive"