root / lib / tools / node_cleanup.py @ d08a8359
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# Copyright (C) 2012 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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"""Script to configure the node daemon.
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"""
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import os |
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import os.path |
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import optparse |
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import sys |
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import logging |
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from ganeti import cli |
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from ganeti import constants |
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from ganeti import pathutils |
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from ganeti import ssconf |
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from ganeti import utils |
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def ParseOptions(): |
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"""Parses the options passed to the program.
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@return: Options and arguments
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"""
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parser = optparse.OptionParser(usage="%prog [--no-backup]",
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prog=os.path.basename(sys.argv[0]))
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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(cli.YES_DOIT_OPT) |
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parser.add_option("--no-backup", dest="backup", default=True, |
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action="store_false",
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help="Whether to create backup copies of deleted files")
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(opts, args) = parser.parse_args() |
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return VerifyOptions(parser, opts, args)
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def VerifyOptions(parser, opts, args): |
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"""Verifies options and arguments for correctness.
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"""
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if args:
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parser.error("No arguments are expected")
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return opts
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def Main(): |
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"""Main routine.
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"""
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opts = ParseOptions() |
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utils.SetupToolLogging(opts.debug, opts.verbose) |
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try:
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# List of files to delete. Contains tuples consisting of the absolute path
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# and a boolean denoting whether a backup copy should be created before
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# deleting.
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clean_files = [ |
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(pathutils.CONFD_HMAC_KEY, True),
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(pathutils.CLUSTER_CONF_FILE, True),
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(pathutils.CLUSTER_DOMAIN_SECRET_FILE, True),
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] |
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clean_files.extend(map(lambda s: (s, True), pathutils.ALL_CERT_FILES)) |
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clean_files.extend(map(lambda s: (s, False), |
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ssconf.SimpleStore().GetFileList())) |
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if not opts.yes_do_it: |
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cli.ToStderr("Cleaning a node is irreversible. If you really want to"
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" clean this node, supply the --yes-do-it option.")
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return constants.EXIT_FAILURE
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logging.info("Stopping daemons")
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result = utils.RunCmd([pathutils.DAEMON_UTIL, "stop-all"],
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interactive=True)
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if result.failed:
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raise Exception("Could not stop daemons, command '%s' failed: %s" % |
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(result.cmd, result.fail_reason)) |
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for (filename, backup) in clean_files: |
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if os.path.exists(filename):
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if opts.backup and backup: |
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logging.info("Backing up %s", filename)
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utils.CreateBackup(filename) |
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logging.info("Removing %s", filename)
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utils.RemoveFile(filename) |
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logging.info("Node successfully cleaned")
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except Exception, err: # pylint: disable=W0703 |
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logging.debug("Caught unhandled exception", exc_info=True) |
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(retcode, message) = cli.FormatError(err) |
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logging.error(message) |
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return retcode
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else:
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return constants.EXIT_SUCCESS
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