gnt-node 5.46 KB
Newer Older
Iustin Pop's avatar
Iustin Pop committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
#!/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
from optparse import make_option

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


def AddNode(opts, args):
  """Add node cli-to-processor bridge."""
  op = opcodes.OpAddNode(node_name=args[0], secondary_ip=opts.secondary_ip)
  SubmitOpCode(op)


def ListNodes(opts, args):
  """List nodes and their properties.

  """
  if opts.output is None:
    selected_fields = ["name", "dtotal", "dfree",
                       "mtotal", "mnode", "mfree",
44
                       "pinst_cnt", "sinst_cnt"]
Iustin Pop's avatar
Iustin Pop committed
45 46 47
  else:
    selected_fields = opts.output.split(",")

48
  op = opcodes.OpQueryNodes(output_fields=selected_fields, nodes=[])
Iustin Pop's avatar
Iustin Pop committed
49 50 51
  output = SubmitOpCode(op)

  if not opts.no_headers:
52 53
    headers = {"name": "Node", "pinst_cnt": "Pinst", "sinst_cnt": "Sinst",
               "pinst_list": "PriInstances", "sinst_list": "SecInstances",
54 55 56 57 58 59 60 61 62 63 64
               "pip": "PrimaryIP", "sip": "SecondaryIP",
               "dtotal": "DTotal", "dfree": "DFree",
               "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree"}
  else:
    headers = None

  if opts.human_readable:
    unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
  else:
    unitfields = None

65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
  numfields = ["dtotal", "dfree",
               "mtotal", "mnode", "mfree",
               "pinst_cnt", "sinst_cnt"]

  # change raw values to nicer strings
  for row in output:
    for idx, field in enumerate(selected_fields):
      val = row[idx]
      if field == "pinst_list":
        val = ",".join(val)
      elif field == "sinst_list":
        val = ",".join(val)
      elif val is None:
        val = "?"
      row[idx] = str(val)
80

81 82 83 84 85
  data = GenerateTable(separator=opts.separator, headers=headers,
                       fields=selected_fields, unitfields=unitfields,
                       numfields=numfields, data=output)
  for line in data:
    logger.ToStdout(line)
Iustin Pop's avatar
Iustin Pop committed
86 87 88 89 90 91 92 93

  return 0


def ShowNodeConfig(opts, args):
  """Show node information.

  """
94 95 96
  op = opcodes.OpQueryNodes(output_fields=["name", "pip", "sip",
                                           "pinst_list", "sinst_list"],
                            nodes=args)
Iustin Pop's avatar
Iustin Pop committed
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124
  result = SubmitOpCode(op)

  for name, primary_ip, secondary_ip, pinst, sinst in result:
    logger.ToStdout("Node name: %s" % name)
    logger.ToStdout("  primary ip: %s" % primary_ip)
    logger.ToStdout("  secondary ip: %s" % secondary_ip)
    if pinst:
      logger.ToStdout("  primary for instances:")
      for iname in pinst:
        logger.ToStdout("    - %s" % iname)
    else:
      logger.ToStdout("  primary for no instances")
    if sinst:
      logger.ToStdout("  secondary for instances:")
      for iname in sinst:
        logger.ToStdout("    - %s" % iname)
    else:
      logger.ToStdout("  secondary for no instances")

  return 0


def RemoveNode(opts, args):
  """Remove node cli-to-processor bridge."""
  op = opcodes.OpRemoveNode(node_name=args[0])
  SubmitOpCode(op)


125 126 127 128 129 130 131 132 133 134 135 136 137 138
def ListVolumes(opts, args):
  """List logical volumes on node(s).

  """
  if opts.output is None:
    selected_fields = ["node", "phys", "vg",
                       "name", "size", "instance"]
  else:
    selected_fields = opts.output.split(",")

  op = opcodes.OpQueryNodeVolumes(nodes=args, output_fields=selected_fields)
  output = SubmitOpCode(op)

  if not opts.no_headers:
139 140 141 142 143 144 145 146 147 148 149 150 151
    headers = {"node": "Node", "phys": "PhysDev",
               "vg": "VG", "name": "Name",
               "size": "Size", "instance": "Instance"}
  else:
    headers = None

  if opts.human_readable:
    unitfields = ["size"]
  else:
    unitfields = None

  numfields = ["size"]

152 153 154 155 156 157
  data = GenerateTable(separator=opts.separator, headers=headers,
                       fields=selected_fields, unitfields=unitfields,
                       numfields=numfields, data=output)

  for line in data:
    logger.ToStdout(line)
158 159 160 161

  return 0


Iustin Pop's avatar
Iustin Pop committed
162 163 164 165 166 167 168 169 170 171
commands = {
  'add': (AddNode, ARGS_ONE,
          [DEBUG_OPT,
           make_option("-s", "--secondary-ip", dest="secondary_ip",
                       help="Specify the secondary ip for the node",
                       metavar="ADDRESS", default=None),],
          "<node_name>", "Add a node to the cluster"),
  'info': (ShowNodeConfig, ARGS_ANY, [DEBUG_OPT],
           "[<node_name>...]", "Show information about the node(s)"),
  'list': (ListNodes, ARGS_NONE,
172
           [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
Iustin Pop's avatar
Iustin Pop committed
173 174 175
           "", "Lists the nodes in the cluster"),
  'remove': (RemoveNode, ARGS_ONE, [DEBUG_OPT],
             "<node_name>", "Removes a node from the cluster"),
176 177 178
  'volumes': (ListVolumes, ARGS_ANY,
              [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
              "[<node_name>...]", "List logical volumes on node(s)"),
Iustin Pop's avatar
Iustin Pop committed
179 180 181 182
  }


if __name__ == '__main__':
183
  sys.exit(GenericMain(commands))