gnt-debug

#!/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.


import sys
import os
import itertools
import simplejson
import time

from optparse import make_option
from cStringIO import StringIO

from ganeti.cli import *
from ganeti import opcodes
from ganeti import logger
from ganeti import constants
from ganeti import utils
from ganeti import errors


def Delay(opts, args):
  """Sleeps for a while

  """
  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

  """
  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)
  print "Job id:", 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!
      print "Job lost!"
      return 1

    status = jdata[0][0]
    print 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!
    print "Job lost!"
    return 1
  print jdata[0]
  status, op_list, op_status, op_result = jdata[0]
  for idx, op in enumerate(op_list):
    print idx, op.OP_ID, op_status[idx], op_result[idx]
  return 0


def TestAllocator(opts, args):
  """Runs the test allocator opcode"""

  try:
    disks = [{"size": utils.ParseUnit(val), "mode": 'w'}
             for val in opts.disks.split(",")]
  except errors.UnitParseError, err:
    print >> sys.stderr, "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)
  print 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))