예제 #1
0
def main(args=None, engine=None):
    """
    Runs plumbery from the command line

    :param args: arguments to be considered for this invocation
    :type args: a list of ``str``

    :param engine: an instance of the plumbery engine
    :type engine: :class:`plumbery.PlumberEngine`

    Example::

        $ python -m plumbery fittings.yaml build web

    In this example, plumbery loads fittings plan from ``fittings.yaml``, then
    it builds the blueprint named ``web``.

    If no blueprint is mentioned, then plumbery looks at all blueprint
    definitions in the fittings plan. In other terms, the following command
    builds the entire fittings plan, eventually across multiple facilities::

        $ python -m plumbery fittings.yaml build

    Of course, plumbery can be invoked through the entire life cycle of your
    fittings::

        $ python -m plumbery fittings.yaml build
        $ python -m plumbery fittings.yaml start
        $ python -m plumbery fittings.yaml polish

        ... nodes are up and running ...

        $ python -m plumbery fittings.yaml stop

        ... nodes have been stopped ...

        $ python -m plumbery fittings.yaml wipe

        ... nodes have been destroyed, but the infrastructure remains ...

        $ python -m plumbery fittings.yaml destroy

        ... every virtual resources has been removed ...


    To focus at a single location, put the character '@' followed by the id.
    For example, to build fittings only at 'NA12' you would type::

        $ python -m plumbery fittings.yaml build @NA12

    To focus on one blueprint just mention its name on the command line.
    For example, if fittings plan has a blueprint for nodes running Docker,
    then you may use following statements to bootstrap each node::

        $ python -m plumbery fittings.yaml build docker
        $ python -m plumbery fittings.yaml start docker
        $ python -m plumbery fittings.yaml prepare docker

        ... Docker is up and running at multiple nodes ...

    If you create a new polisher and put it in the directory
    ``plumbery\polishers``, then it will become automatically available::

        $ python -m plumbery fittings.yaml my_special_stuff

    To get some help, you can type::

        $ python -m plumbery -h

    """

    # part 1 - understand what the user wants

    if args is None:
        args = sys.argv[1:]

    try:
        args = parse_args(args)

    except Exception as feedback:
        plogging.error("Incorrect arguments. "
                       "Maybe the following can help: python -m plumbery -h")
        if plogging.getEffectiveLevel() == logging.DEBUG:
            raise
        else:
            plogging.error("{}: {}".format(feedback.__class__.__name__,
                                           str(feedback)))
        sys.exit(2)

    # part 2 - get a valid and configured engine

    if engine is None:
        try:
            engine = PlumberyEngine(args.fittings, args.parameters)

            if args.safe:
                engine.safeMode = True

        except Exception as feedback:
            if plogging.getEffectiveLevel() == logging.DEBUG:
                plogging.error("Cannot read fittings plan from '{}'".format(
                    args.fittings))
                raise
            else:
                plogging.error("Cannot read fittings plan from '{}'"
                               ", run with -d for debug".format(args.fittings))
                plogging.error("{}: {}".format(feedback.__class__.__name__,
                                               str(feedback)))
            sys.exit(2)

    # part 3 - do the job

    try:
        engine.do(args.action, args.blueprints, args.facilities)

        plogging.info(engine.document_elapsed())

    except Exception as feedback:
        if plogging.getEffectiveLevel() == logging.DEBUG:
            plogging.error("Unable to do '{}'".format(args.action))
            raise
        else:
            plogging.error("Unable to do '{}', run with -d for debug".format(
                args.action))
            plogging.error("{}: {}".format(feedback.__class__.__name__,
                                           str(feedback)))
        sys.exit(1)
예제 #2
0
def main(args=[], engine=None):
    """
    Runs plumbery from the command line

    Example::

        $ python -m plumbery fittings.yaml build web

    In this example, plumbery loads fittings plan from ``fittings.yaml``, then
    it builds the blueprint named ``web``.

    If no blueprint is mentioned, then plumbery looks at all blueprint
    definitions in the fittings plan. In other terms, the following command
    builds the entire fittings plan, eventually across multiple facilities::

        $ python -m plumbery fittings.yaml build

    Of course, plumbery can be invoked through the entire life cycle of your
    fittings::

        $ python -m plumbery fittings.yaml build
        $ python -m plumbery fittings.yaml start
        $ python -m plumbery fittings.yaml polish

        ... nodes are up and running ...

        $ python -m plumbery fittings.yaml stop

        ... nodes have been stopped ...

        $ python -m plumbery fittings.yaml wipe

        ... nodes have been destroyed, but the infrastructure remains ...

        $ python -m plumbery fittings.yaml destroy

        ... every virtual resources has been removed ...


    To focus at a single location, put the character '@' followed by the id.
    For example, to build fittings only at 'NA12' you would type::

        $ python -m plumbery fittings.yaml build @NA12

    To apply a polisher just mention its name on the command line. For example,
    if fittings plan has a blueprint for nodes running Docker, then you may
    use following statements to bootstrap each node::

        $ python -m plumbery fittings.yaml build docker
        $ python -m plumbery fittings.yaml start docker
        $ python -m plumbery fittings.yaml prepare docker

        ... Docker is up and running at multiple nodes ...

    If you create a new polisher and put it in the directory
    ``plumbery\polishers``, then it will become automatically available::

        $ python -m plumbery fittings.yaml my_special_stuff

    To get some help, you can type::

        $ python -m plumbery -h

    """

    # part 1 - understand what the user wants

    try:
        args = parse_args(args)

    except Exception as feedback:
        logging.error("Incorrect arguments. "
                      "Maybe the following can help: python -m plumbery -h")
        if logging.getLogger().getEffectiveLevel() == logging.DEBUG:
            raise
        else:
            logging.error("{}: {}".format(
                feedback.__class__.__name__,
                str(feedback)))
        sys.exit(2)

    # part 2 - acquire the toolbox

    if engine is None:
        try:
            engine = PlumberyEngine(args.fittings, args.parameters)

            if args.safe:
                engine.safeMode = True

        except Exception as feedback:
            if logging.getLogger().getEffectiveLevel() == logging.DEBUG:
                logging.error("Cannot read fittings plan from '{}'".format(
                    args.fittings))
                raise
            else:
                logging.error("Cannot read fittings plan from '{}'"
                              ", run with -d for debug".format(
                                  args.fittings))
                logging.error("{}: {}".format(
                    feedback.__class__.__name__,
                    str(feedback)))
            sys.exit(2)

    # part 3 - do the job

    try:
        engine.do(args.action, args.blueprints, args.facilities)

        logging.info(engine.document_elapsed())

    except Exception as feedback:
        if logging.getLogger().getEffectiveLevel() == logging.DEBUG:
            logging.error("Unable to do '{}'".format(args.action))
            raise
        else:
            logging.error("Unable to do '{}', run with -d for debug".format(
                args.action))
            logging.error("{}: {}".format(
                feedback.__class__.__name__,
                str(feedback)))
        sys.exit(2)