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#!/usr/bin/python |
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# |
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|
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# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 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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|
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|
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"""Tool to upgrade the configuration file. |
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|
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This code handles only the types supported by simplejson. As an |
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example, 'set' is a 'list'. |
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|
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""" |
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|
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|
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import os |
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import os.path |
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import sys |
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import optparse |
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import logging |
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import time |
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from cStringIO import StringIO |
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from bitarray import bitarray |
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from base64 import b64encode, b64decode |
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|
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from ganeti import constants |
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from ganeti import serializer |
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from ganeti import utils |
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from ganeti import cli |
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from ganeti import bootstrap |
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from ganeti import config |
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from ganeti import netutils |
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from ganeti import pathutils |
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|
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|
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options = None |
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args = None |
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|
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|
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#: Target major version we will upgrade to |
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TARGET_MAJOR = 2 |
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#: Target minor version we will upgrade to |
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TARGET_MINOR = 8 |
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#: Target major version for downgrade |
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DOWNGRADE_MAJOR = 2 |
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#: Target minor version for downgrade |
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DOWNGRADE_MINOR = 7 |
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|
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|
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class Error(Exception): |
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"""Generic exception""" |
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pass |
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|
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|
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def SetupLogging(): |
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"""Configures the logging module. |
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|
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""" |
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formatter = logging.Formatter("%(asctime)s: %(message)s") |
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|
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stderr_handler = logging.StreamHandler() |
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stderr_handler.setFormatter(formatter) |
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if options.debug: |
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stderr_handler.setLevel(logging.NOTSET) |
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elif options.verbose: |
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stderr_handler.setLevel(logging.INFO) |
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else: |
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stderr_handler.setLevel(logging.WARNING) |
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|
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root_logger = logging.getLogger("") |
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root_logger.setLevel(logging.NOTSET) |
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root_logger.addHandler(stderr_handler) |
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|
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|
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def CheckHostname(path): |
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"""Ensures hostname matches ssconf value. |
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|
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@param path: Path to ssconf file |
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|
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""" |
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ssconf_master_node = utils.ReadOneLineFile(path) |
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hostname = netutils.GetHostname().name |
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|
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if ssconf_master_node == hostname: |
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return True |
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|
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logging.warning("Warning: ssconf says master node is '%s', but this" |
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" machine's name is '%s'; this tool must be run on" |
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" the master node", ssconf_master_node, hostname) |
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return False |
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|
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|
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def _FillIPolicySpecs(default_ipolicy, ipolicy): |
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if "minmax" in ipolicy: |
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for (key, spec) in ipolicy["minmax"][0].items(): |
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for (par, val) in default_ipolicy["minmax"][0][key].items(): |
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if par not in spec: |
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spec[par] = val |
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|
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|
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def UpgradeIPolicy(ipolicy, default_ipolicy, isgroup): |
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minmax_keys = ["min", "max"] |
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if any((k in ipolicy) for k in minmax_keys): |
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minmax = {} |
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for key in minmax_keys: |
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if key in ipolicy: |
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if ipolicy[key]: |
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minmax[key] = ipolicy[key] |
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del ipolicy[key] |
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if minmax: |
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ipolicy["minmax"] = [minmax] |
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if isgroup and "std" in ipolicy: |
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del ipolicy["std"] |
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_FillIPolicySpecs(default_ipolicy, ipolicy) |
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|
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|
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# pylint: disable=E1101 |
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def UpgradeNetworks(config_data): |
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networks = config_data.get("networks", {}) |
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if not networks: |
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config_data["networks"] = {} |
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for nobj in networks.values(): |
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for key in ("reservations", "ext_reservations"): |
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r = nobj[key] |
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if options.tob64: |
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try: |
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b = bitarray(r) |
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nobj[key] = b64encode(b.tobytes()) |
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except ValueError: |
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print("No 01 network found! Probably already in base64.") |
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if options.to01: |
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try: |
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b = bitarray(r) |
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print("01 network found! Do nothing.") |
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except ValueError: |
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b = bitarray() |
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b.frombytes(b64decode(r)) |
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nobj[key] = b.to01() |
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print("%s: %s -> %s" % (nobj["name"], r, nobj[key])) |
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|
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|
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def UpgradeCluster(config_data): |
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cluster = config_data.get("cluster", None) |
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if cluster is None: |
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raise Error("Cannot find cluster") |
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ipolicy = cluster.setdefault("ipolicy", None) |
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if ipolicy: |
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UpgradeIPolicy(ipolicy, constants.IPOLICY_DEFAULTS, False) |
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|
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|
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def UpgradeGroups(config_data): |
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cl_ipolicy = config_data["cluster"].get("ipolicy") |
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for group in config_data["nodegroups"].values(): |
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networks = group.get("networks", None) |
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if not networks: |
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group["networks"] = {} |
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ipolicy = group.get("ipolicy", None) |
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if ipolicy: |
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if cl_ipolicy is None: |
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raise Error("A group defines an instance policy but there is no" |
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" instance policy at cluster level") |
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UpgradeIPolicy(ipolicy, cl_ipolicy, True) |
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|
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|
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def UpgradeInstances(config_data): |
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network2uuid = dict((n["name"], n["uuid"]) |
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for n in config_data["networks"].values()) |
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if "instances" not in config_data: |
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raise Error("Can't find the 'instances' key in the configuration!") |
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|
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for instance, iobj in config_data["instances"].items(): |
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for nic in iobj["nics"]: |
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name = nic.get("network", None) |
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if name: |
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uuid = network2uuid.get(name, None) |
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if uuid: |
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print("NIC with network name %s found." |
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" Substituting with uuid %s." % (name, uuid)) |
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nic["network"] = uuid |
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try: |
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del nic["idx"] |
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print("Deleting deprecated idx") |
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except KeyError: |
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pass |
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|
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if "disks" not in iobj: |
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raise Error("Instance '%s' doesn't have a disks entry?!" % instance) |
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disks = iobj["disks"] |
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for idx, dobj in enumerate(disks): |
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expected = "disk/%s" % idx |
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current = dobj.get("iv_name", "") |
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if current != expected: |
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logging.warning("Updating iv_name for instance %s/disk %s" |
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" from '%s' to '%s'", |
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instance, idx, current, expected) |
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dobj["iv_name"] = expected |
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try: |
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del dobj["idx"] |
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print("Deleting deprecated idx") |
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except KeyError: |
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pass |
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|
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for attr in ("dev_idxs", "hotplug_info", "hotplugs", "pci_reservations"): |
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try: |
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del iobj[attr] |
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print("Deleting deprecated %s" % attr) |
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except KeyError: |
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pass |
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|
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|
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def UpgradeRapiUsers(): |
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if (os.path.isfile(options.RAPI_USERS_FILE_PRE24) and |
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not os.path.islink(options.RAPI_USERS_FILE_PRE24)): |
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if os.path.exists(options.RAPI_USERS_FILE): |
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raise Error("Found pre-2.4 RAPI users file at %s, but another file" |
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" already exists at %s" % |
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(options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE)) |
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logging.info("Found pre-2.4 RAPI users file at %s, renaming to %s", |
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options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE) |
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if not options.dry_run: |
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utils.RenameFile(options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE, |
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mkdir=True, mkdir_mode=0750) |
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|
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# Create a symlink for RAPI users file |
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if (not (os.path.islink(options.RAPI_USERS_FILE_PRE24) or |
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os.path.isfile(options.RAPI_USERS_FILE_PRE24)) and |
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os.path.isfile(options.RAPI_USERS_FILE)): |
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logging.info("Creating symlink from %s to %s", |
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options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE) |
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if not options.dry_run: |
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os.symlink(options.RAPI_USERS_FILE, options.RAPI_USERS_FILE_PRE24) |
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|
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|
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def UpgradeWatcher(): |
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# Remove old watcher state file if it exists |
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if os.path.exists(options.WATCHER_STATEFILE): |
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logging.info("Removing watcher state file %s", options.WATCHER_STATEFILE) |
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if not options.dry_run: |
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utils.RemoveFile(options.WATCHER_STATEFILE) |
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|
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|
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def UpgradeFileStoragePaths(config_data): |
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# Write file storage paths |
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if not os.path.exists(options.FILE_STORAGE_PATHS_FILE): |
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cluster = config_data["cluster"] |
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file_storage_dir = cluster.get("file_storage_dir") |
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shared_file_storage_dir = cluster.get("shared_file_storage_dir") |
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del cluster |
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|
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logging.info("Ganeti 2.7 and later only allow whitelisted directories" |
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" for file storage; writing existing configuration values" |
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" into '%s'", |
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options.FILE_STORAGE_PATHS_FILE) |
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|
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if file_storage_dir: |
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logging.info("File storage directory: %s", file_storage_dir) |
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if shared_file_storage_dir: |
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logging.info("Shared file storage directory: %s", |
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shared_file_storage_dir) |
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|
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buf = StringIO() |
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buf.write("# List automatically generated from configuration by\n") |
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buf.write("# cfgupgrade at %s\n" % time.asctime()) |
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if file_storage_dir: |
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buf.write("%s\n" % file_storage_dir) |
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if shared_file_storage_dir: |
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buf.write("%s\n" % shared_file_storage_dir) |
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utils.WriteFile(file_name=options.FILE_STORAGE_PATHS_FILE, |
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data=buf.getvalue(), |
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mode=0600, |
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dry_run=options.dry_run, |
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backup=True) |
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|
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|
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def UpgradeAll(config_data): |
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config_data["version"] = constants.BuildVersion(TARGET_MAJOR, |
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TARGET_MINOR, 0) |
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UpgradeRapiUsers() |
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UpgradeWatcher() |
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UpgradeFileStoragePaths(config_data) |
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UpgradeNetworks(config_data) |
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UpgradeCluster(config_data) |
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UpgradeGroups(config_data) |
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UpgradeInstances(config_data) |
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|
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|
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def DowngradeIPolicy(ipolicy, owner): |
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# Downgrade IPolicy to 2.7 (stable) |
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minmax_keys = ["min", "max"] |
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specs_is_split = any((k in ipolicy) for k in minmax_keys) |
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if not specs_is_split: |
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if "minmax" in ipolicy: |
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if type(ipolicy["minmax"]) is not list: |
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raise Error("Invalid minmax type in %s ipolicy: %s" % |
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(owner, type(ipolicy["minmax"]))) |
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if len(ipolicy["minmax"]) > 1: |
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logging.warning("Discarding some limit specs values from %s policy", |
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owner) |
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minmax = ipolicy["minmax"][0] |
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del ipolicy["minmax"] |
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else: |
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minmax = {} |
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for key in minmax_keys: |
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spec = minmax.get(key, {}) |
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ipolicy[key] = spec |
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if "std" not in ipolicy: |
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ipolicy["std"] = {} |
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|
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|
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def DowngradeGroups(config_data): |
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for group in config_data["nodegroups"].values(): |
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ipolicy = group.get("ipolicy", None) |
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if ipolicy is not None: |
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DowngradeIPolicy(ipolicy, "group \"%s\"" % group.get("name")) |
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|
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|
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def DowngradeEnabledTemplates(cluster): |
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# Remove enabled disk templates to downgrade to 2.7 |
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edt_key = "enabled_disk_templates" |
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if edt_key in cluster: |
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logging.warning("Removing cluster's enabled disk templates; value = %s", |
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utils.CommaJoin(cluster[edt_key])) |
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del cluster[edt_key] |
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|
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|
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def DowngradeCluster(config_data): |
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cluster = config_data.get("cluster", None) |
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if cluster is None: |
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raise Error("Cannot find cluster") |
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DowngradeEnabledTemplates(cluster) |
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ipolicy = cluster.get("ipolicy", None) |
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if ipolicy: |
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DowngradeIPolicy(ipolicy, "cluster") |
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if "dsahostkeypub" in cluster: |
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del cluster["dsahostkeypub"] |
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|
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|
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def DowngradeDisk(disk): |
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if "uuid" in disk: |
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del disk["uuid"] |
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if "children" in disk: |
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for child_disk in disk["children"]: |
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DowngradeDisk(child_disk) |
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|
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|
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def DowngradeInstances(config_data): |
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if "instances" not in config_data: |
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raise Error("Can't find the 'instances' key in the configuration!") |
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|
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for _, iobj in config_data["instances"].items(): |
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if "disks_active" in iobj: |
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del iobj["disks_active"] |
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|
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# Remove the NICs UUIDs |
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for nic in iobj["nics"]: |
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if "uuid" in nic: |
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del nic["uuid"] |
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|
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# Downgrade the disks |
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for disk in iobj["disks"]: |
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DowngradeDisk(disk) |
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|
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|
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def DowngradeAll(config_data): |
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# Any code specific to a particular version should be labeled that way, so |
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# it can be removed when updating to the next version. |
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config_data["version"] = constants.BuildVersion(DOWNGRADE_MAJOR, |
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DOWNGRADE_MINOR, 0) |
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DowngradeCluster(config_data) |
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DowngradeGroups(config_data) |
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DowngradeInstances(config_data) |
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|
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|
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def main(): |
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"""Main program. |
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|
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""" |
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global options, args # pylint: disable=W0603 |
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|
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# Option parsing |
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parser = optparse.OptionParser(usage="%prog [--debug|--verbose] [--force]") |
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parser.add_option("--dry-run", dest="dry_run", |
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action="store_true", |
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help="Try to do the conversion, but don't write" |
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" output file") |
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parser.add_option(cli.FORCE_OPT) |
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parser.add_option(cli.DEBUG_OPT) |
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parser.add_option(cli.VERBOSE_OPT) |
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parser.add_option("--ignore-hostname", dest="ignore_hostname", |
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action="store_true", default=False, |
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help="Don't abort if hostname doesn't match") |
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parser.add_option("--path", help="Convert configuration in this" |
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" directory instead of '%s'" % pathutils.DATA_DIR, |
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default=pathutils.DATA_DIR, dest="data_dir") |
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parser.add_option("--confdir", |
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help=("Use this directory instead of '%s'" % |
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pathutils.CONF_DIR), |
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default=pathutils.CONF_DIR, dest="conf_dir") |
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parser.add_option("--no-verify", |
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help="Do not verify configuration after upgrade", |
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action="store_true", dest="no_verify", default=False) |
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parser.add_option("--downgrade", |
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help="Downgrade to the previous stable version", |
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action="store_true", dest="downgrade", default=False) |
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parser.add_option("--tob64", |
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help="Change to base64 encoded networks", |
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action="store_true", dest="tob64", default=False) |
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parser.add_option("--to01", |
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help="Change to non encoded networks (01 bitarrays)", |
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action="store_true", dest="to01", default=False) |
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(options, args) = parser.parse_args() |
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|
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# We need to keep filenames locally because they might be renamed between |
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# versions. |
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options.data_dir = os.path.abspath(options.data_dir) |
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options.CONFIG_DATA_PATH = options.data_dir + "/config.data" |
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options.SERVER_PEM_PATH = options.data_dir + "/server.pem" |
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options.KNOWN_HOSTS_PATH = options.data_dir + "/known_hosts" |
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options.RAPI_CERT_FILE = options.data_dir + "/rapi.pem" |
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options.SPICE_CERT_FILE = options.data_dir + "/spice.pem" |
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options.SPICE_CACERT_FILE = options.data_dir + "/spice-ca.pem" |
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options.RAPI_USERS_FILE = options.data_dir + "/rapi/users" |
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options.RAPI_USERS_FILE_PRE24 = options.data_dir + "/rapi_users" |
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options.CONFD_HMAC_KEY = options.data_dir + "/hmac.key" |
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options.CDS_FILE = options.data_dir + "/cluster-domain-secret" |
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options.SSCONF_MASTER_NODE = options.data_dir + "/ssconf_master_node" |
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options.WATCHER_STATEFILE = options.data_dir + "/watcher.data" |
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options.FILE_STORAGE_PATHS_FILE = options.conf_dir + "/file-storage-paths" |
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|
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SetupLogging() |
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|
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# Option checking |
447 |
if args: |
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raise Error("No arguments expected") |
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if options.downgrade and not options.no_verify: |
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options.no_verify = True |
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|
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# Check master name |
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if not (CheckHostname(options.SSCONF_MASTER_NODE) or options.ignore_hostname): |
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logging.error("Aborting due to hostname mismatch") |
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sys.exit(constants.EXIT_FAILURE) |
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|
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if not options.force: |
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if options.downgrade: |
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usertext = ("The configuration is going to be DOWNGRADED to version %s.%s" |
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" Some configuration data might be removed if they don't fit" |
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" in the old format. Please make sure you have read the" |
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" upgrade notes (available in the UPGRADE file and included" |
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" in other documentation formats) to understand what they" |
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" are. Continue with *DOWNGRADING* the configuration?" % |
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(DOWNGRADE_MAJOR, DOWNGRADE_MINOR)) |
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else: |
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usertext = ("Please make sure you have read the upgrade notes for" |
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" Ganeti %s (available in the UPGRADE file and included" |
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" in other documentation formats). Continue with upgrading" |
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" configuration?" % constants.RELEASE_VERSION) |
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if not cli.AskUser(usertext): |
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sys.exit(constants.EXIT_FAILURE) |
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|
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# Check whether it's a Ganeti configuration directory |
475 |
if not (os.path.isfile(options.CONFIG_DATA_PATH) and |
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os.path.isfile(options.SERVER_PEM_PATH) and |
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os.path.isfile(options.KNOWN_HOSTS_PATH)): |
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raise Error(("%s does not seem to be a Ganeti configuration" |
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" directory") % options.data_dir) |
480 |
|
481 |
if not os.path.isdir(options.conf_dir): |
482 |
raise Error("Not a directory: %s" % options.conf_dir) |
483 |
|
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config_data = serializer.LoadJson(utils.ReadFile(options.CONFIG_DATA_PATH)) |
485 |
|
486 |
try: |
487 |
config_version = config_data["version"] |
488 |
except KeyError: |
489 |
raise Error("Unable to determine configuration version") |
490 |
|
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(config_major, config_minor, config_revision) = \ |
492 |
constants.SplitVersion(config_version) |
493 |
|
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logging.info("Found configuration version %s (%d.%d.%d)", |
495 |
config_version, config_major, config_minor, config_revision) |
496 |
|
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if "config_version" in config_data["cluster"]: |
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raise Error("Inconsistent configuration: found config_version in" |
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" configuration file") |
500 |
|
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# Downgrade to the previous stable version |
502 |
if options.downgrade: |
503 |
if not ((config_major == TARGET_MAJOR and config_minor == TARGET_MINOR) or |
504 |
(config_major == DOWNGRADE_MAJOR and |
505 |
config_minor == DOWNGRADE_MINOR)): |
506 |
raise Error("Downgrade supported only from the latest version (%s.%s)," |
507 |
" found %s (%s.%s.%s) instead" % |
508 |
(TARGET_MAJOR, TARGET_MINOR, config_version, config_major, |
509 |
config_minor, config_revision)) |
510 |
DowngradeAll(config_data) |
511 |
|
512 |
# Upgrade from 2.{0..7} to 2.8 |
513 |
elif config_major == 2 and config_minor in range(0, 9): |
514 |
if config_revision != 0: |
515 |
logging.warning("Config revision is %s, not 0", config_revision) |
516 |
UpgradeAll(config_data) |
517 |
|
518 |
elif config_major == TARGET_MAJOR and config_minor == TARGET_MINOR: |
519 |
logging.info("No changes necessary") |
520 |
|
521 |
else: |
522 |
raise Error("Configuration version %d.%d.%d not supported by this tool" % |
523 |
(config_major, config_minor, config_revision)) |
524 |
|
525 |
try: |
526 |
logging.info("Writing configuration file to %s", options.CONFIG_DATA_PATH) |
527 |
utils.WriteFile(file_name=options.CONFIG_DATA_PATH, |
528 |
data=serializer.DumpJson(config_data), |
529 |
mode=0600, |
530 |
dry_run=options.dry_run, |
531 |
backup=True) |
532 |
|
533 |
if not options.dry_run: |
534 |
bootstrap.GenerateClusterCrypto( |
535 |
False, False, False, False, False, |
536 |
nodecert_file=options.SERVER_PEM_PATH, |
537 |
rapicert_file=options.RAPI_CERT_FILE, |
538 |
spicecert_file=options.SPICE_CERT_FILE, |
539 |
spicecacert_file=options.SPICE_CACERT_FILE, |
540 |
hmackey_file=options.CONFD_HMAC_KEY, |
541 |
cds_file=options.CDS_FILE) |
542 |
|
543 |
except Exception: |
544 |
logging.critical("Writing configuration failed. It is probably in an" |
545 |
" inconsistent state and needs manual intervention.") |
546 |
raise |
547 |
|
548 |
# test loading the config file |
549 |
all_ok = True |
550 |
if not (options.dry_run or options.no_verify): |
551 |
logging.info("Testing the new config file...") |
552 |
cfg = config.ConfigWriter(cfg_file=options.CONFIG_DATA_PATH, |
553 |
accept_foreign=options.ignore_hostname, |
554 |
offline=True) |
555 |
# if we reached this, it's all fine |
556 |
vrfy = cfg.VerifyConfig() |
557 |
if vrfy: |
558 |
logging.error("Errors after conversion:") |
559 |
for item in vrfy: |
560 |
logging.error(" - %s", item) |
561 |
all_ok = False |
562 |
else: |
563 |
logging.info("File loaded successfully after upgrading") |
564 |
del cfg |
565 |
|
566 |
if options.downgrade: |
567 |
action = "downgraded" |
568 |
out_ver = "%s.%s" % (DOWNGRADE_MAJOR, DOWNGRADE_MINOR) |
569 |
else: |
570 |
action = "upgraded" |
571 |
out_ver = constants.RELEASE_VERSION |
572 |
if all_ok: |
573 |
cli.ToStderr("Configuration successfully %s to version %s.", |
574 |
action, out_ver) |
575 |
else: |
576 |
cli.ToStderr("Configuration %s to version %s, but there are errors." |
577 |
"\nPlease review the file.", action, out_ver) |
578 |
|
579 |
|
580 |
if __name__ == "__main__": |
581 |
main() |