Synnefo » snf-ganeti

#!/usr/bin/python

#

# Copyright (C) 2006, 2007 Google Inc.

#

# This program is free software; you can redistribute it and/or modify

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

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program 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

# General Public License for more details.

#

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

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

# pylint: disable-msg=W0401,W0614

# W0401: Wildcard import ganeti.cli

# W0614: Unused import %s from wildcard import (since we need cli)

import sys

import simplejson

import time

from optparse import make_option

from ganeti.cli import *

from ganeti import opcodes

from ganeti import constants

from ganeti import utils

from ganeti import errors

def Delay(opts, args):

  """Sleeps for a while

  @param opts: the command line options selected by the user

  @type args: list

  @param args: should contain only one element, the duration

      the sleep

  @rtype: int

  @return: the desired exit code

  """

  delay = float(args[0])

  op = opcodes.OpTestDelay(duration=delay,

                           on_master=opts.on_master,

                           on_nodes=opts.on_nodes)

  SubmitOpCode(op)

  return 0

def GenericOpCodes(opts, args):

  """Send any opcode to the master.

  @todo: The function is broken and needs to be converted to the

      current job queue API

  @param opts: the command line options selected by the user

  @type args: list

  @param args: should contain only one element, the path of

      the file with the opcode definition

  @rtype: int

  @return: the desired exit code

  """

  fname = args[0]

  op_data = simplejson.loads(open(fname).read())

  op_list = [opcodes.OpCode.LoadOpCode(val) for val in op_data]

  job = opcodes.Job(op_list=op_list)

  jid = SubmitJob(job)

  ToStdout("Job id: %s", jid)

  query = {

    "object": "jobs",

    "fields": ["status"],

    "names": [jid],

    }

  # wait for job to complete (either by success or failure)

  while True:

    jdata = SubmitQuery(query)

    if not jdata:

      # job not found, gone away!

      ToStderr("Job lost!")

      return 1

    status = jdata[0][0]

    ToStdout(status)

    if status in (opcodes.Job.STATUS_SUCCESS, opcodes.Job.STATUS_FAIL):

      break

    # sleep between checks

    time.sleep(0.5)

  # job has finished, get and process its results

  query["fields"].extend(["op_list", "op_status", "op_result"])

  jdata = SubmitQuery(query)

  if not jdata:

    # job not found, gone away!

    ToStderr("Job lost!")

    return 1

  ToStdout(jdata[0])

  status, op_list, op_status, op_result = jdata[0]

  for idx, op in enumerate(op_list):

    ToStdout("%s %s %s %s", idx, op.OP_ID, op_status[idx], op_result[idx])

  return 0

def TestAllocator(opts, args):

  """Runs the test allocator opcode.

  @param opts: the command line options selected by the user

  @type args: list

  @param args: should contain only one element, the iallocator name

  @rtype: int

  @return: the desired exit code

  """

  try:

    disks = [{"size": utils.ParseUnit(val), "mode": 'w'}

             for val in opts.disks.split(",")]

  except errors.UnitParseError, err:

    ToStderr("Invalid disks parameter '%s': %s", opts.disks, err)

    return 1

  nics = [val.split("/") for val in opts.nics.split(",")]

  for row in nics:

    while len(row) < 3:

      row.append(None)

    for i in range(3):

      if row[i] == '':

        row[i] = None

  nic_dict = [{"mac": v[0], "ip": v[1], "bridge": v[2]} for v in nics]

  if opts.tags is None:

    opts.tags = []

  else:

    opts.tags = opts.tags.split(",")

  op = opcodes.OpTestAllocator(mode=opts.mode,

                               name=args[0],

                               mem_size=opts.mem,

                               disks=disks,

                               disk_template=opts.disk_template,

                               nics=nic_dict,

                               os=opts.os_type,

                               vcpus=opts.vcpus,

                               tags=opts.tags,

                               direction=opts.direction,

                               allocator=opts.allocator,

                               )

  result = SubmitOpCode(op)

  ToStdout("%s" % result)

  return 0

commands = {

  'delay': (Delay, ARGS_ONE,

            [DEBUG_OPT,

             make_option("--no-master", dest="on_master", default=True,

                         action="store_false",

                         help="Do not sleep in the master code"),

             make_option("-n", dest="on_nodes", default=[],

                         action="append",

                         help="Select nodes to sleep on"),

             ],

            "[opts...] <duration>", "Executes a TestDelay OpCode"),

  'submit-job': (GenericOpCodes, ARGS_ONE,

                 [DEBUG_OPT,

                  ],

                 "<op_list_file>", "Submits a job built from a json-file"

                 " with a list of serialized opcodes"),

  'allocator': (TestAllocator, ARGS_ONE,

                [DEBUG_OPT,

                 make_option("--dir", dest="direction",

                             default="in", choices=["in", "out"],

                             help="Show allocator input (in) or allocator"

                             " results (out)"),

                 make_option("--algorithm", dest="allocator",

                             default=None,

                             help="Allocator algorithm name"),

                 make_option("-m", "--mode", default="relocate",

                             choices=["relocate", "allocate"],

                             help="Request mode, either allocate or"

                             "relocate"),

                 cli_option("--mem", default=128, type="unit",

                            help="Memory size for the instance (MiB)"),

                 make_option("--disks", default="4096,4096",

                             help="Comma separated list of disk sizes (MiB)"),

                 make_option("-t", "--disk-template", default="drbd",

                             help="Select the disk template"),

                 make_option("--nics", default="00:11:22:33:44:55",

                             help="Comma separated list of nics, each nic"

                             " definition is of form mac/ip/bridge, if"

                             " missing values are replace by None"),

                 make_option("-o", "--os-type", default=None,

                             help="Select os for the instance"),

                 make_option("-p", "--vcpus", default=1, type="int",

                             help="Select number of VCPUs for the instance"),

                 make_option("--tags", default=None,

                             help="Comma separated list of tags"),

                 ],

                "{opts...} <instance>", "Executes a TestAllocator OpCode"),

  }

if __name__ == '__main__':

  sys.exit(GenericMain(commands))