4 # Copyright (C) 2006, 2007 Google Inc.
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.
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.
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
21 """OS scripts related commands"""
23 # pylint: disable-msg=W0401,W0613,W0614,C0103
24 # W0401: Wildcard import ganeti.cli
25 # W0613: Unused argument, since all functions follow the same API
26 # W0614: Unused import %s from wildcard import (since we need cli)
27 # C0103: Invalid name gnt-os
31 from ganeti.cli import *
32 from ganeti import opcodes
33 from ganeti import utils
36 def ListOS(opts, args):
37 """List the valid OSes in the cluster.
39 @param opts: the command line options selected by the user
41 @param args: should be an empty list
43 @return: the desired exit code
46 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"],
48 result = SubmitOpCode(op, opts=opts)
51 ToStderr("Can't get the OS list")
54 if not opts.no_headers:
55 headers = {"name": "Name"}
60 for (name, valid, variants) in result:
62 os_names.extend([[n] for n in CalculateOSNames(name, variants)])
64 data = GenerateTable(separator=None, headers=headers, fields=["name"],
65 data=os_names, units=None)
73 def _OsStatus(status, diagnose):
74 """Beautifier function for OS status.
77 @param status: is the OS valid
78 @type diagnose: string
79 @param diagnose: the error message for invalid OSes
81 @return: a formatted status
87 return "invalid - %s" % diagnose
89 def DiagnoseOS(opts, args):
90 """Analyse all OSes on this cluster.
92 @param opts: the command line options selected by the user
94 @param args: should be an empty list
96 @return: the desired exit code
99 op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants",
100 "node_status"], names=[])
101 result = SubmitOpCode(op, opts=opts)
104 ToStderr("Can't get the OS list")
109 for os_name, _, os_variants, node_data in result:
113 for node_name, node_info in node_data.iteritems():
114 nodes_hidden[node_name] = []
115 if node_info: # at least one entry in the per-node list
116 (first_os_path, first_os_status, first_os_msg,
117 first_os_variants) = node_info.pop(0)
118 if not first_os_variants:
119 first_os_variants = []
120 first_os_msg = ("%s (path: %s) [variants: %s]" %
121 (_OsStatus(first_os_status, first_os_msg),
122 first_os_path, utils.CommaJoin(first_os_variants)))
124 nodes_valid[node_name] = first_os_msg
126 nodes_bad[node_name] = first_os_msg
127 for hpath, hstatus, hmsg in node_info:
128 nodes_hidden[node_name].append(" [hidden] path: %s, status: %s" %
129 (hpath, _OsStatus(hstatus, hmsg)))
131 nodes_bad[node_name] = "OS not found"
133 if nodes_valid and not nodes_bad:
135 elif not nodes_valid and nodes_bad:
139 status = "partial valid"
142 def _OutputPerNodeOSStatus(msg_map):
143 map_k = utils.NiceSort(msg_map.keys())
144 for node_name in map_k:
145 ToStdout(" Node: %s, status: %s", node_name, msg_map[node_name])
146 for msg in nodes_hidden[node_name]:
149 ToStdout("OS: %s [global status: %s]", os_name, status)
151 ToStdout(" Variants: [%s]" % utils.CommaJoin(os_variants))
152 _OutputPerNodeOSStatus(nodes_valid)
153 _OutputPerNodeOSStatus(nodes_bad)
161 ListOS, ARGS_NONE, [NOHDR_OPT], "", "Lists all valid OSes on the master"),
163 DiagnoseOS, ARGS_NONE, [], "", "Diagnose all OSes"),
166 if __name__ == '__main__':
167 sys.exit(GenericMain(commands))