gnt-os 5.12 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
44
45
46
47
48
#!/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 objects
from ganeti import utils
from ganeti import errors

def ListOS(opts, args):
  """List the OSes existing on this node.

  """
  op = opcodes.OpDiagnoseOS()
  result = SubmitOpCode(op)

  if not result:
    logger.ToStdout("Can't get the OS list")
    return 1

  # filter non-valid OS-es
  oses = {}
  for node_name in result:
    oses[node_name] = [obj for obj in result[node_name]
                       if isinstance(obj, objects.OS)]

49
  # Get intersection of all OSes
Iustin Pop's avatar
Iustin Pop committed
50
51
52
53
54
55
56
  fnode = oses.keys()[0]
  os_set = set([os_inst.name for os_inst in oses[fnode]])
  del oses[fnode]
  for node in oses:
    os_set &= set([os_inst.name for os_inst in oses[node]])

  if not opts.no_headers:
57
58
59
    headers = {"name": "Name"}
  else:
    headers = None
Iustin Pop's avatar
Iustin Pop committed
60

61
62
63
64
65
  data = GenerateTable(separator=None, headers=headers, fields=["name"],
                       data=[[os] for os in os_set])

  for line in data:
    logger.ToStdout(line)
Iustin Pop's avatar
Iustin Pop committed
66
67
68

  return 0

Guido Trotter's avatar
Guido Trotter committed
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
def _DiagnoseOSValid(obj):
  """Verify whether an OS diagnose object represents a valid OS

    Args:
      obj: an diagnostic object as returned by OpDiagnoseOS

    Returns:
      bool: OS validity status
  """

  if isinstance(obj, objects.OS):
    return True
  elif isinstance(obj, errors.InvalidOS):
    return False
  else:
    raise errors.ProgrammerError('unknown OS diagnose type')

def _DiagnoseOSStatus(obj):
  """Generate a status message for an OS diagnose object.

    Args:
      obj: an diagnostic object as returned by OpDiagnoseOS

    Returns:
      string: a description of the OS status
  """

  if _DiagnoseOSValid(obj):
    return "valid (path: %s)" % obj.path
  else:
    return "%s (path: %s)" % (obj.args[2], obj.args[1])

Iustin Pop's avatar
Iustin Pop committed
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
def DiagnoseOS(opts, args):
  """Analyse all OSes on this cluster.

  """
  op = opcodes.OpDiagnoseOS()
  result = SubmitOpCode(op)

  if not result:
    logger.ToStdout("Can't get the OS list")
    return 1

  format = "%-*s %-*s %s"

  node_data = result
  all_os = {}
  for node_name in node_data:
    nr = node_data[node_name]
    if nr:
      for obj in nr:
        if isinstance(obj, objects.OS):
          os_name = obj.name
        else:
          os_name = obj.args[0]
        if os_name not in all_os:
          all_os[os_name] = {}
126
127
128
        if node_name not in all_os[os_name]:
          all_os[os_name][node_name] = []
        all_os[os_name][node_name].append(obj)
Iustin Pop's avatar
Iustin Pop committed
129
130
131
132
133
134
135
136
137
138
139
140

  max_name = len('Name')
  if all_os:
    max_name = max(max_name, max([len(name) for name in all_os]))

  max_node = len('Status/Node')
  max_node = max(max_node, max([len(name) for name in node_data]))

  logger.ToStdout(format % (max_name, 'Name', max_node, 'Status/Node',
                            'Details'))

  for os_name in all_os:
Guido Trotter's avatar
Guido Trotter committed
141
    nodes_valid = {}
Iustin Pop's avatar
Iustin Pop committed
142
143
    nodes_bad = {}
    for node_name in node_data:
144
      if node_name in all_os[os_name]:
Guido Trotter's avatar
Guido Trotter committed
145
146
147
148
149
150
        first_os = all_os[os_name][node_name].pop(0)
        first_os_status = _DiagnoseOSStatus(first_os)
        if _DiagnoseOSValid(first_os):
          nodes_valid[node_name] = first_os_status
        else:
          nodes_bad[node_name] = first_os_status
Iustin Pop's avatar
Iustin Pop committed
151
      else:
Guido Trotter's avatar
Guido Trotter committed
152
        nodes_bad[node_name] = "OS not found"
Iustin Pop's avatar
Iustin Pop committed
153
154
155
156
157
158
159

    if nodes_valid and not nodes_bad:
      status = "valid"
    elif not nodes_valid and nodes_bad:
      status = "invalid"
    else:
      status = "partial valid"
160

Guido Trotter's avatar
Guido Trotter committed
161
162
163
164
165
166
167
168
169
170
171
172
173
174
    def _OutputNodeHiddenOSStatus(dobj_list):
      for dobj in dobj_list:
        logger.ToStdout(format % (max_name, "", max_node, "",
                                  "[hidden] %s" %
                                  _DiagnoseOSStatus(dobj)))

    def _OutputPerNodeOSStatus(status_map):
      map_k = utils.NiceSort(status_map.keys())
      for node_name in map_k:
        logger.ToStdout(format % (max_name, "", max_node,
                                  node_name, status_map[node_name]))
        if node_name in all_os[os_name]:
          _OutputNodeHiddenOSStatus(all_os[os_name][node_name])

Iustin Pop's avatar
Iustin Pop committed
175
    logger.ToStdout(format % (max_name, os_name, max_node, status, ""))
Guido Trotter's avatar
Guido Trotter committed
176
177
    _OutputPerNodeOSStatus(nodes_valid)
    _OutputPerNodeOSStatus(nodes_bad)
Iustin Pop's avatar
Iustin Pop committed
178
179
180
181
182
183
184
185
186
187


commands = {
  'list': (ListOS, ARGS_NONE, [DEBUG_OPT, NOHDR_OPT], "",
           "Lists all valid OSes on the master"),
  'diagnose': (DiagnoseOS, ARGS_NONE, [DEBUG_OPT], "",
               "Diagnose all OSes"),
  }

if __name__ == '__main__':
188
  sys.exit(GenericMain(commands))