Added allocate command (automatic VM allocation)

#coding=utf8

# This file is part of CloudControl.

#

# CloudControl is free software: you can redistribute it and/or modify

# it under the terms of the GNU Lesser General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# CloudControl is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU Lesser General Public License for more details.

#

# You should have received a copy of the GNU Lesser General Public License

# along with CloudControl.  If not, see <http://www.gnu.org/licenses/>.

"""

CloudControl server command

"""

import json

from cloudcontrol.cli.exception import cmdBadArgument

from cloudcontrol.cli.printer import color

from cloudcontrol.cli.command import RemoteCommand

class Command_allocate(RemoteCommand):

    """VM allocation command"""

    def __init__(self, cli, argv0):

        RemoteCommand.__init__(self, cli, argv0)

        self.set_usage("%prog [options] <path to vmspec>")

        self.add_option("-t", dest="target", default="id", help="target on which to spawn VMs")

    def __call__(self, argv):

        self.parse_args(argv)

        if len(self.args) != 1:

            raise cmdBadArgument()

        # Load vmspec

        try:

            vmspec = json.load(open(self.args[0]))

        except IOError as err:

            self.printer.error("Unable to load vmspec: %s" % err.args[1])

        else:

            job_id = self.rpc.call("allocate", vmspec, self.options.target)

            self.printer.out("\n%sA job doing this allocation has been started.%s" % (color["light"], color["reset"]))

            self.printer.out("%sWatch it%s: watch list id:%s$duration$state$status$title" % (color["light"], color["reset"], job_id))

            self.printer.out("%sGet logs:%s attachment id:%s logs" % (color["light"], color["reset"], job_id))

            self.printer.out("%sGet results:%s attachment id:%s results\n" % (color["light"], color["reset"], job_id))

    def remote_functions(self):

        return set(("allocate",))