Statistics
| Branch: | Tag: | Revision:

root / scripts / gnt-node @ 137161c9

History | View | Annotate | Download (4.7 kB)

1
#!/usr/bin/python
2
#
3

    
4
# Copyright (C) 2006, 2007 Google Inc.
5
#
6
# This program is free software; you can redistribute it and/or modify
7
# it under the terms of the GNU General Public License as published by
8
# the Free Software Foundation; either version 2 of the License, or
9
# (at your option) any later version.
10
#
11
# This program is distributed in the hope that it will be useful, but
12
# WITHOUT ANY WARRANTY; without even the implied warranty of
13
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
# General Public License for more details.
15
#
16
# You should have received a copy of the GNU General Public License
17
# along with this program; if not, write to the Free Software
18
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19
# 02110-1301, USA.
20

    
21

    
22
import sys
23
from optparse import make_option
24

    
25
from ganeti.cli import *
26
from ganeti import opcodes
27
from ganeti import logger
28
from ganeti import utils
29

    
30

    
31
def AddNode(opts, args):
32
  """Add node cli-to-processor bridge."""
33
  op = opcodes.OpAddNode(node_name=args[0], secondary_ip=opts.secondary_ip)
34
  SubmitOpCode(op)
35

    
36

    
37
def ListNodes(opts, args):
38
  """List nodes and their properties.
39

    
40
  """
41
  if opts.output is None:
42
    selected_fields = ["name", "dtotal", "dfree",
43
                       "mtotal", "mnode", "mfree",
44
                       "pinst", "sinst"]
45
  else:
46
    selected_fields = opts.output.split(",")
47

    
48
  op = opcodes.OpQueryNodes(output_fields=selected_fields)
49
  output = SubmitOpCode(op)
50

    
51
  if not opts.no_headers:
52
    headers = {"name": "Node", "pinst": "Pinst", "sinst": "Sinst",
53
               "pip": "PrimaryIP", "sip": "SecondaryIP",
54
               "dtotal": "DTotal", "dfree": "DFree",
55
               "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree"}
56
  else:
57
    headers = None
58

    
59
  if opts.human_readable:
60
    unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
61
  else:
62
    unitfields = None
63

    
64
  numfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree", "pinst", "sinst"]
65

    
66
  OutputTable(separator=opts.separator, headers=headers,
67
      fields=selected_fields, unitfields=unitfields,
68
      numfields=numfields, data=output)
69

    
70
  return 0
71

    
72

    
73
def ShowNodeConfig(opts, args):
74
  """Show node information.
75

    
76
  """
77
  op = opcodes.OpQueryNodeData(nodes=args)
78
  result = SubmitOpCode(op)
79

    
80
  for name, primary_ip, secondary_ip, pinst, sinst in result:
81
    logger.ToStdout("Node name: %s" % name)
82
    logger.ToStdout("  primary ip: %s" % primary_ip)
83
    logger.ToStdout("  secondary ip: %s" % secondary_ip)
84
    if pinst:
85
      logger.ToStdout("  primary for instances:")
86
      for iname in pinst:
87
        logger.ToStdout("    - %s" % iname)
88
    else:
89
      logger.ToStdout("  primary for no instances")
90
    if sinst:
91
      logger.ToStdout("  secondary for instances:")
92
      for iname in sinst:
93
        logger.ToStdout("    - %s" % iname)
94
    else:
95
      logger.ToStdout("  secondary for no instances")
96

    
97
  return 0
98

    
99

    
100
def RemoveNode(opts, args):
101
  """Remove node cli-to-processor bridge."""
102
  op = opcodes.OpRemoveNode(node_name=args[0])
103
  SubmitOpCode(op)
104

    
105

    
106
def ListVolumes(opts, args):
107
  """List logical volumes on node(s).
108

    
109
  """
110
  if opts.output is None:
111
    selected_fields = ["node", "phys", "vg",
112
                       "name", "size", "instance"]
113
  else:
114
    selected_fields = opts.output.split(",")
115

    
116
  op = opcodes.OpQueryNodeVolumes(nodes=args, output_fields=selected_fields)
117
  output = SubmitOpCode(op)
118

    
119
  if not opts.no_headers:
120
    headers = {"node": "Node", "phys": "PhysDev",
121
               "vg": "VG", "name": "Name",
122
               "size": "Size", "instance": "Instance"}
123
  else:
124
    headers = None
125

    
126
  if opts.human_readable:
127
    unitfields = ["size"]
128
  else:
129
    unitfields = None
130

    
131
  numfields = ["size"]
132

    
133
  OutputTable(separator=opts.separator, headers=headers,
134
      fields=selected_fields, unitfields=unitfields,
135
      numfields=numfields, data=output)
136

    
137
  return 0
138

    
139

    
140
commands = {
141
  'add': (AddNode, ARGS_ONE,
142
          [DEBUG_OPT,
143
           make_option("-s", "--secondary-ip", dest="secondary_ip",
144
                       help="Specify the secondary ip for the node",
145
                       metavar="ADDRESS", default=None),],
146
          "<node_name>", "Add a node to the cluster"),
147
  'info': (ShowNodeConfig, ARGS_ANY, [DEBUG_OPT],
148
           "[<node_name>...]", "Show information about the node(s)"),
149
  'list': (ListNodes, ARGS_NONE,
150
           [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
151
           "", "Lists the nodes in the cluster"),
152
  'remove': (RemoveNode, ARGS_ONE, [DEBUG_OPT],
153
             "<node_name>", "Removes a node from the cluster"),
154
  'volumes': (ListVolumes, ARGS_ANY,
155
              [DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT],
156
              "[<node_name>...]", "List logical volumes on node(s)"),
157
  }
158

    
159

    
160
if __name__ == '__main__':
161
  retcode = GenericMain(commands)
162
  sys.exit(retcode)