root / lib / client / gnt_os.py @ 364c350f
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# Copyright (C) 2006, 2007, 2010, 2013 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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"""OS scripts related commands"""
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# pylint: disable=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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from ganeti.cli import * |
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from ganeti import constants |
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from ganeti import opcodes |
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from ganeti import utils |
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def ListOS(opts, args): |
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"""List the valid OSes in the cluster.
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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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op = opcodes.OpOsDiagnose(output_fields=["name", "variants"], names=[]) |
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result = SubmitOpCode(op, opts=opts) |
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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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os_names = [] |
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for (name, variants) in result: |
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os_names.extend([[n] for n in CalculateOSNames(name, variants)]) |
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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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for line in data: |
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ToStdout(line) |
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return 0 |
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def ShowOSInfo(opts, args): |
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"""List detailed information about OSes in the cluster.
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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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op = opcodes.OpOsDiagnose(output_fields=["name", "valid", "variants", |
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"parameters", "api_versions", |
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"blacklisted", "hidden"], |
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names=[]) |
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result = SubmitOpCode(op, opts=opts) |
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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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do_filter = bool(args)
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for (name, valid, variants, parameters, api_versions, blk, hid) in result: |
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if do_filter:
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if name not in args: |
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continue
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else:
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args.remove(name) |
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ToStdout("%s:", name)
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ToStdout(" - valid: %s", valid)
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ToStdout(" - hidden: %s", hid)
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ToStdout(" - blacklisted: %s", blk)
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if valid:
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ToStdout(" - API versions:")
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for version in sorted(api_versions): |
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ToStdout(" - %s", version)
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ToStdout(" - variants:")
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for vname in variants: |
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ToStdout(" - %s", vname)
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ToStdout(" - parameters:")
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for pname, pdesc in parameters: |
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ToStdout(" - %s: %s", pname, pdesc)
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ToStdout("")
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if args:
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for name in args: |
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ToStdout("%s: ", name)
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ToStdout("")
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return 0 |
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def _OsStatus(status, diagnose): |
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"""Beautifier function for OS status.
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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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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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def DiagnoseOS(opts, args): |
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"""Analyse all OSes on this cluster.
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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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op = opcodes.OpOsDiagnose(output_fields=["name", "valid", "variants", |
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"node_status", "hidden", |
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"blacklisted"], names=[])
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result = SubmitOpCode(op, opts=opts) |
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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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has_bad = False
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for os_name, _, os_variants, node_data, hid, blk 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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(fo_path, fo_status, fo_msg, fo_variants, |
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fo_params, fo_api) = node_info.pop(0)
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fo_msg = "%s (path: %s)" % (_OsStatus(fo_status, fo_msg), fo_path)
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if fo_api:
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max_os_api = max(fo_api)
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fo_msg += " [API versions: %s]" % utils.CommaJoin(fo_api)
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else:
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max_os_api = 0
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fo_msg += " [no API versions declared]"
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if max_os_api >= constants.OS_API_V15:
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if fo_variants:
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fo_msg += " [variants: %s]" % utils.CommaJoin(fo_variants)
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else:
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fo_msg += " [no variants]"
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if max_os_api >= constants.OS_API_V20:
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if fo_params:
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fo_msg += (" [parameters: %s]" %
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utils.CommaJoin([v[0] for v in fo_params])) |
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else:
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fo_msg += " [no parameters]"
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if fo_status:
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nodes_valid[node_name] = fo_msg |
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else:
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nodes_bad[node_name] = fo_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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# TODO: Shouldn't the global status be calculated by the LU?
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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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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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st_msg = "OS: %s [global status: %s]" % (os_name, status)
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if hid:
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st_msg += " [hidden]"
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if blk:
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st_msg += " [blacklisted]"
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ToStdout(st_msg) |
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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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return int(has_bad) |
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def ModifyOS(opts, args): |
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"""Modify OS parameters for one OS.
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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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os = args[0]
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if opts.hvparams:
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os_hvp = {os: dict(opts.hvparams)}
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else:
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os_hvp = None
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if opts.osparams:
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osp = {os: opts.osparams} |
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else:
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osp = None
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if opts.hidden is not None: |
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if opts.hidden:
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ohid = [(constants.DDM_ADD, os)] |
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else:
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ohid = [(constants.DDM_REMOVE, os)] |
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else:
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ohid = None
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if opts.blacklisted is not None: |
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if opts.blacklisted:
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oblk = [(constants.DDM_ADD, os)] |
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else:
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oblk = [(constants.DDM_REMOVE, os)] |
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else:
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oblk = None
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if not (os_hvp or osp or ohid or oblk): |
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ToStderr("At least one of OS parameters or hypervisor parameters"
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" must be passed")
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return 1 |
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op = opcodes.OpClusterSetParams(os_hvp=os_hvp, |
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osparams=osp, |
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hidden_os=ohid, |
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blacklisted_os=oblk) |
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SubmitOrSend(op, opts) |
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return 0 |
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commands = { |
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"list": (
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ListOS, ARGS_NONE, [NOHDR_OPT, PRIORITY_OPT], |
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"", "Lists all valid operating systems on the cluster"), |
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"diagnose": (
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DiagnoseOS, ARGS_NONE, [PRIORITY_OPT], |
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"", "Diagnose all operating systems"), |
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"info": (
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ShowOSInfo, [ArgOs()], [PRIORITY_OPT], |
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"", "Show detailed information about " |
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"operating systems"),
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"modify": (
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ModifyOS, ARGS_ONE_OS, |
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[HVLIST_OPT, OSPARAMS_OPT, DRY_RUN_OPT, PRIORITY_OPT, |
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HID_OS_OPT, BLK_OS_OPT, SUBMIT_OPT], |
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"", "Modify the OS parameters"), |
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} |
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#: dictionary with aliases for commands
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aliases = { |
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"show": "info", |
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} |
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def Main(): |
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return GenericMain(commands, aliases=aliases)
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