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#!/usr/bin/python |
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# |
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# Copyright (C) 2006, 2007 Google Inc. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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|
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"""OS scripts related commands""" |
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|
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# pylint: disable-msg=W0401,W0613,W0614,C0103 |
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# W0401: Wildcard import ganeti.cli |
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# W0613: Unused argument, since all functions follow the same API |
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# W0614: Unused import %s from wildcard import (since we need cli) |
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# C0103: Invalid name gnt-os |
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|
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import sys |
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|
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from ganeti.cli import * |
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from ganeti import opcodes |
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from ganeti import utils |
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|
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|
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def ListOS(opts, args): |
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"""List the valid OSes in the cluster. |
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|
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@param opts: the command line options selected by the user |
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@type args: list |
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@param args: should be an empty list |
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@rtype: int |
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@return: the desired exit code |
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|
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""" |
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op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants"], |
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names=[]) |
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result = SubmitOpCode(op, opts=opts) |
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|
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if not result: |
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ToStderr("Can't get the OS list") |
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return 1 |
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|
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if not opts.no_headers: |
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headers = {"name": "Name"} |
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else: |
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headers = None |
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|
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os_names = [] |
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for (name, valid, variants) in result: |
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if valid: |
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os_names.extend([[n] for n in CalculateOSNames(name, variants)]) |
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|
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data = GenerateTable(separator=None, headers=headers, fields=["name"], |
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data=os_names, units=None) |
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|
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for line in data: |
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ToStdout(line) |
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|
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return 0 |
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|
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|
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def _OsStatus(status, diagnose): |
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"""Beautifier function for OS status. |
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|
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@type status: boolean |
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@param status: is the OS valid |
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@type diagnose: string |
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@param diagnose: the error message for invalid OSes |
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@rtype: string |
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@return: a formatted status |
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|
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""" |
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if status: |
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return "valid" |
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else: |
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return "invalid - %s" % diagnose |
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|
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def DiagnoseOS(opts, args): |
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"""Analyse all OSes on this cluster. |
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|
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@param opts: the command line options selected by the user |
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@type args: list |
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@param args: should be an empty list |
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@rtype: int |
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@return: the desired exit code |
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|
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""" |
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op = opcodes.OpDiagnoseOS(output_fields=["name", "valid", "variants", |
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"node_status"], names=[]) |
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result = SubmitOpCode(op, opts=opts) |
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|
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if not result: |
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ToStderr("Can't get the OS list") |
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return 1 |
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|
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has_bad = False |
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|
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for os_name, _, os_variants, node_data in result: |
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nodes_valid = {} |
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nodes_bad = {} |
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nodes_hidden = {} |
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for node_name, node_info in node_data.iteritems(): |
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nodes_hidden[node_name] = [] |
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if node_info: # at least one entry in the per-node list |
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(first_os_path, first_os_status, first_os_msg, |
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first_os_variants, _) = node_info.pop(0) |
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if not first_os_variants: |
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first_os_variants = [] |
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first_os_msg = ("%s (path: %s) [variants: %s]" % |
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(_OsStatus(first_os_status, first_os_msg), |
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first_os_path, utils.CommaJoin(first_os_variants))) |
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if first_os_status: |
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nodes_valid[node_name] = first_os_msg |
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else: |
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nodes_bad[node_name] = first_os_msg |
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for hpath, hstatus, hmsg in node_info: |
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nodes_hidden[node_name].append(" [hidden] path: %s, status: %s" % |
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(hpath, _OsStatus(hstatus, hmsg))) |
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else: |
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nodes_bad[node_name] = "OS not found" |
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|
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if nodes_valid and not nodes_bad: |
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status = "valid" |
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elif not nodes_valid and nodes_bad: |
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status = "invalid" |
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has_bad = True |
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else: |
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status = "partial valid" |
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has_bad = True |
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|
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def _OutputPerNodeOSStatus(msg_map): |
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map_k = utils.NiceSort(msg_map.keys()) |
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for node_name in map_k: |
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ToStdout(" Node: %s, status: %s", node_name, msg_map[node_name]) |
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for msg in nodes_hidden[node_name]: |
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ToStdout(msg) |
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|
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ToStdout("OS: %s [global status: %s]", os_name, status) |
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if os_variants: |
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ToStdout(" Variants: [%s]" % utils.CommaJoin(os_variants)) |
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_OutputPerNodeOSStatus(nodes_valid) |
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_OutputPerNodeOSStatus(nodes_bad) |
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ToStdout("") |
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|
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return int(has_bad) |
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|
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|
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def ModifyOS(opts, args): |
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"""Modify OS parameters for one OS. |
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|
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@param opts: the command line options selected by the user |
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@type args: list |
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@param args: should be a list with one entry |
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@rtype: int |
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@return: the desired exit code |
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|
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""" |
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os = args[0] |
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|
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op = opcodes.OpSetClusterParams(vg_name=None, |
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enabled_hypervisors=None, |
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hvparams=None, |
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beparams=None, |
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nicparams=None, |
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candidate_pool_size=None, |
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os_hvp={ |
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os: dict(opts.hvparams) |
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}) |
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SubmitOpCode(op) |
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|
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return 0 |
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|
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|
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commands = { |
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'list': ( |
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ListOS, ARGS_NONE, [NOHDR_OPT], "", "Lists all valid OSes on the master"), |
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'diagnose': ( |
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DiagnoseOS, ARGS_NONE, [], "", "Diagnose all OSes"), |
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'modify': ( |
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ModifyOS, ARGS_ONE_OS, [HVLIST_OPT], "", "Modify os parameters"), |
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} |
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|
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if __name__ == '__main__': |
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sys.exit(GenericMain(commands)) |