root / scripts / gnt-os @ ae5b1530
History | View | Annotate | Download (7.3 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 |
"""OS scripts related commands""" |
22 |
|
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 |
28 |
|
29 |
import sys |
30 |
|
31 |
from ganeti.cli import * |
32 |
from ganeti import opcodes |
33 |
from ganeti import utils |
34 |
|
35 |
|
36 |
def ListOS(opts, args): |
37 |
"""List the valid OSes in the cluster. |
38 |
|
39 |
@param opts: the command line options selected by the user |
40 |
@type args: list |
41 |
@param args: should be an empty list |
42 |
@rtype: int |
43 |
@return: the desired exit code |
44 |
|
45 |
""" |
46 |
op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"], |
47 |
names=[]) |
48 |
result = SubmitOpCode(op, opts=opts) |
49 |
|
50 |
if not result: |
51 |
ToStderr("Can't get the OS list") |
52 |
return 1 |
53 |
|
54 |
if not opts.no_headers: |
55 |
headers = {"name": "Name"} |
56 |
else: |
57 |
headers = None |
58 |
|
59 |
os_names = [] |
60 |
for (name, valid, variants) in result: |
61 |
if valid: |
62 |
os_names.extend([[n] for n in CalculateOSNames(name, variants)]) |
63 |
|
64 |
data = GenerateTable(separator=None, headers=headers, fields=["name"], |
65 |
data=os_names, units=None) |
66 |
|
67 |
for line in data: |
68 |
ToStdout(line) |
69 |
|
70 |
return 0 |
71 |
|
72 |
|
73 |
def ShowOSInfo(opts, args): |
74 |
"""List detailed information about OSes in the cluster. |
75 |
|
76 |
@param opts: the command line options selected by the user |
77 |
@type args: list |
78 |
@param args: should be an empty list |
79 |
@rtype: int |
80 |
@return: the desired exit code |
81 |
|
82 |
""" |
83 |
op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants", |
84 |
"parameters", "api_versions"], |
85 |
names=[]) |
86 |
result = SubmitOpCode(op, opts=opts) |
87 |
|
88 |
if not result: |
89 |
ToStderr("Can't get the OS list") |
90 |
return 1 |
91 |
|
92 |
do_filter = bool(args) |
93 |
|
94 |
for (name, valid, variants, parameters, api_versions) in result: |
95 |
if do_filter: |
96 |
if name not in args: |
97 |
continue |
98 |
else: |
99 |
args.remove(name) |
100 |
ToStdout("%s:", name) |
101 |
ToStdout(" - valid: %s", valid) |
102 |
if valid: |
103 |
ToStdout(" - API versions:") |
104 |
for version in sorted(api_versions): |
105 |
ToStdout(" - %s", version) |
106 |
ToStdout(" - variants:") |
107 |
for vname in variants: |
108 |
ToStdout(" - %s", vname) |
109 |
ToStdout(" - parameters:") |
110 |
for pname, pdesc in parameters: |
111 |
ToStdout(" - %s: %s", pname, pdesc) |
112 |
ToStdout("") |
113 |
|
114 |
if args: |
115 |
for name in args: |
116 |
ToStdout("%s: ", name) |
117 |
ToStdout("") |
118 |
|
119 |
return 0 |
120 |
|
121 |
|
122 |
def _OsStatus(status, diagnose): |
123 |
"""Beautifier function for OS status. |
124 |
|
125 |
@type status: boolean |
126 |
@param status: is the OS valid |
127 |
@type diagnose: string |
128 |
@param diagnose: the error message for invalid OSes |
129 |
@rtype: string |
130 |
@return: a formatted status |
131 |
|
132 |
""" |
133 |
if status: |
134 |
return "valid" |
135 |
else: |
136 |
return "invalid - %s" % diagnose |
137 |
|
138 |
def DiagnoseOS(opts, args): |
139 |
"""Analyse all OSes on this cluster. |
140 |
|
141 |
@param opts: the command line options selected by the user |
142 |
@type args: list |
143 |
@param args: should be an empty list |
144 |
@rtype: int |
145 |
@return: the desired exit code |
146 |
|
147 |
""" |
148 |
op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants", |
149 |
"node_status"], names=[]) |
150 |
result = SubmitOpCode(op, opts=opts) |
151 |
|
152 |
if not result: |
153 |
ToStderr("Can't get the OS list") |
154 |
return 1 |
155 |
|
156 |
has_bad = False |
157 |
|
158 |
for os_name, _, os_variants, node_data in result: |
159 |
nodes_valid = {} |
160 |
nodes_bad = {} |
161 |
nodes_hidden = {} |
162 |
for node_name, node_info in node_data.iteritems(): |
163 |
nodes_hidden[node_name] = [] |
164 |
if node_info: # at least one entry in the per-node list |
165 |
(first_os_path, first_os_status, first_os_msg, |
166 |
first_os_variants, _, first_os_api) = node_info.pop(0) |
167 |
if not first_os_variants: |
168 |
first_os_variants = [] |
169 |
first_os_msg = ("%s (path: %s) [variants: %s] [api: %s]" % |
170 |
(_OsStatus(first_os_status, first_os_msg), |
171 |
first_os_path, utils.CommaJoin(first_os_variants), |
172 |
utils.CommaJoin(first_os_api))) |
173 |
if first_os_status: |
174 |
nodes_valid[node_name] = first_os_msg |
175 |
else: |
176 |
nodes_bad[node_name] = first_os_msg |
177 |
for hpath, hstatus, hmsg, _, _, _ in node_info: |
178 |
nodes_hidden[node_name].append(" [hidden] path: %s, status: %s" % |
179 |
(hpath, _OsStatus(hstatus, hmsg))) |
180 |
else: |
181 |
nodes_bad[node_name] = "OS not found" |
182 |
|
183 |
if nodes_valid and not nodes_bad: |
184 |
status = "valid" |
185 |
elif not nodes_valid and nodes_bad: |
186 |
status = "invalid" |
187 |
has_bad = True |
188 |
else: |
189 |
status = "partial valid" |
190 |
has_bad = True |
191 |
|
192 |
def _OutputPerNodeOSStatus(msg_map): |
193 |
map_k = utils.NiceSort(msg_map.keys()) |
194 |
for node_name in map_k: |
195 |
ToStdout(" Node: %s, status: %s", node_name, msg_map[node_name]) |
196 |
for msg in nodes_hidden[node_name]: |
197 |
ToStdout(msg) |
198 |
|
199 |
ToStdout("OS: %s [global status: %s]", os_name, status) |
200 |
if os_variants: |
201 |
ToStdout(" Variants: [%s]" % utils.CommaJoin(os_variants)) |
202 |
_OutputPerNodeOSStatus(nodes_valid) |
203 |
_OutputPerNodeOSStatus(nodes_bad) |
204 |
ToStdout("") |
205 |
|
206 |
return int(has_bad) |
207 |
|
208 |
|
209 |
def ModifyOS(opts, args): |
210 |
"""Modify OS parameters for one OS. |
211 |
|
212 |
@param opts: the command line options selected by the user |
213 |
@type args: list |
214 |
@param args: should be a list with one entry |
215 |
@rtype: int |
216 |
@return: the desired exit code |
217 |
|
218 |
""" |
219 |
os = args[0] |
220 |
|
221 |
if opts.hvparams: |
222 |
os_hvp = {os: dict(opts.hvparams)} |
223 |
else: |
224 |
os_hvp = None |
225 |
|
226 |
if opts.osparams: |
227 |
osp = {os: opts.osparams} |
228 |
else: |
229 |
osp = None |
230 |
|
231 |
if not (os_hvp or osp): |
232 |
ToStderr("At least one of OS parameters or hypervisor parameters" |
233 |
" must be passed") |
234 |
return 1 |
235 |
|
236 |
op = opcodes.OpSetClusterParams(vg_name=None, |
237 |
enabled_hypervisors=None, |
238 |
hvparams=None, |
239 |
beparams=None, |
240 |
nicparams=None, |
241 |
candidate_pool_size=None, |
242 |
os_hvp=os_hvp, |
243 |
osparams=osp) |
244 |
SubmitOpCode(op) |
245 |
|
246 |
return 0 |
247 |
|
248 |
|
249 |
commands = { |
250 |
'list': ( |
251 |
ListOS, ARGS_NONE, [NOHDR_OPT], "", "Lists all valid operating systems" |
252 |
" on the cluster"), |
253 |
'diagnose': ( |
254 |
DiagnoseOS, ARGS_NONE, [], "", "Diagnose all operating systems"), |
255 |
'info': ( |
256 |
ShowOSInfo, [ArgOs()], [], "", "Show detailed information about " |
257 |
"operating systems"), |
258 |
'modify': ( |
259 |
ModifyOS, ARGS_ONE_OS, [HVLIST_OPT, OSPARAMS_OPT], "", |
260 |
"Modify the OS parameters"), |
261 |
} |
262 |
|
263 |
if __name__ == '__main__': |
264 |
sys.exit(GenericMain(commands)) |